From Kevin.Hallock at pfizer.com  Mon May  2 13:04:08 2016
From: Kevin.Hallock at pfizer.com (Hallock, Kevin)
Date: Mon, 2 May 2016 17:04:08 +0000
Subject: [Paraview-developers] Changing Display properties using python
Message-ID: <D34D00C8.14508%Kevin.Hallock@pfizer.com>

Hi everyone,

I am writing a simple script to create 3D text at a specified location, but I am having trouble figuring out how to apply a translation to it.  Here is my brief code:

from paraview import vtk
string = "Python"
text = paraview.simple.a3DText(Text=string)
paraview.simple.SetDisplayProperties(Opacity=1)
paraview.simple.Show()

Opacity works, but when I use

from paraview import vtk
string = "Python"
text = paraview.simple.a3DText(Text=string)
paraview.simple.SetDisplayProperties(Opacity=1, Translation=[1,1,1])
paraview.simple.Show()


I receive the following error:


Traceback (most recent call last):

File "<string>", line 4, in <module>

File "/Applications/paraview.app/Contents/Python/paraview/simple.py", line 429, in SetDisplayProperties

SetProperties(rep, **params)

File "/Applications/paraview.app/Contents/Python/paraview/simple.py", line 480, in SetProperties

raise AttributeError("object has no property %s" % param)

AttributeError: object has no property Translation

There is some property that allows it to be translated, but I do not know the correct name. Is there a good resource for finding the names of the individual properties so they can be changed in a script?

Thanks,

Kevin

--
Kevin Hallock
Visualization and Modeling, Quantitative Medicine
Neuroscience and Pain Research Unit
Worldwide Research and Development
Pfizer Inc
610 Main Street
Cambridge, MA 02139
Email: kevin.hallock at pfizer.com<mailto:kevin.hallock at pfizer.com>
Fax: 845-474-4001


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From utkarsh.ayachit at kitware.com  Mon May  2 13:48:34 2016
From: utkarsh.ayachit at kitware.com (Utkarsh Ayachit)
Date: Mon, 2 May 2016 13:48:34 -0400
Subject: [Paraview-developers] Changing Display properties using python
In-Reply-To: <D34D00C8.14508%Kevin.Hallock@pfizer.com>
References: <D34D00C8.14508%Kevin.Hallock@pfizer.com>
Message-ID: <CADHSJjCN0CJXq857PhXz9ic-uAHycKi7VMvb4k6BUv5NcfrvfA@mail.gmail.com>

The property is called "Position". This highlights a bug in the code
where the label is not being used as the name for the property in
Python. I've reported a bug:
http://www.paraview.org/Bug/view.php?id=16108

Utkarsh

On Mon, May 2, 2016 at 1:04 PM, Hallock, Kevin <Kevin.Hallock at pfizer.com> wrote:
> Hi everyone,
>
> I am writing a simple script to create 3D text at a specified location, but
> I am having trouble figuring out how to apply a translation to it.  Here is
> my brief code:
>
> from paraview import vtk
> string = "Python"
> text = paraview.simple.a3DText(Text=string)
> paraview.simple.SetDisplayProperties(Opacity=1)
> paraview.simple.Show()
>
> Opacity works, but when I use
>
> from paraview import vtk
> string = "Python"
> text = paraview.simple.a3DText(Text=string)
> paraview.simple.SetDisplayProperties(Opacity=1, Translation=[1,1,1])
> paraview.simple.Show()
>
>
> I receive the following error:
>
> Traceback (most recent call last):
>
> File "<string>", line 4, in <module>
>
> File "/Applications/paraview.app/Contents/Python/paraview/simple.py", line
> 429, in SetDisplayProperties
>
> SetProperties(rep, **params)
>
> File "/Applications/paraview.app/Contents/Python/paraview/simple.py", line
> 480, in SetProperties
>
> raise AttributeError("object has no property %s" % param)
>
> AttributeError: object has no property Translation
>
>
> There is some property that allows it to be translated, but I do not know
> the correct name. Is there a good resource for finding the names of the
> individual properties so they can be changed in a script?
>
> Thanks,
>
> Kevin
>
> --
> Kevin Hallock
> Visualization and Modeling, Quantitative Medicine
> Neuroscience and Pain Research Unit
> Worldwide Research and Development
> Pfizer Inc
> 610 Main Street
> Cambridge, MA 02139
> Email: kevin.hallock at pfizer.com
> Fax: 845-474-4001
>
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Search the list archives at:
> http://markmail.org/search/?q=Paraview-developers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/paraview-developers
>

From utkarsh.ayachit at kitware.com  Mon May  2 16:20:25 2016
From: utkarsh.ayachit at kitware.com (Utkarsh Ayachit)
Date: Mon, 2 May 2016 16:20:25 -0400
Subject: [Paraview-developers] [EXTERNAL] Removing Cube Axes support
	from ParaView
In-Reply-To: <940e3b7bfff84820ba609eb75aaeea61@ES01AMSNLNT.srn.sandia.gov>
References: <CADHSJjDbYrxC3Sse_jw7J5Amb8=42KSe2p61a28WS+hb3-FVUw@mail.gmail.com>
 <940e3b7bfff84820ba609eb75aaeea61@ES01AMSNLNT.srn.sandia.gov>
Message-ID: <CADHSJjA7c4QrZpe0Sbo4U2EqOHRfR2dNvdNP2NFEsw4di-CGjA@mail.gmail.com>

Since no one objected, this in now in progress.

Here's the MR:
https://gitlab.kitware.com/paraview/paraview/merge_requests/755

Once the dashboards are clear, this will be merged and included in upcoming 5.1.

Utkarsh

On Mon, Apr 18, 2016 at 2:48 PM, Scott, W Alan <wascott at sandia.gov> wrote:
> Note that you can get the same look as the "Axes Grid" (i.e., draw axes in front) by going "Edit Axes Grid", Advanced, then switch Cull front face/ back face.
>
> Alan
>
> -----Original Message-----
> From: Paraview-developers [mailto:paraview-developers-bounces at paraview.org] On Behalf Of Utkarsh Ayachit
> Sent: Monday, April 18, 2016 12:41 PM
> To: ParaView Developers <paraview-developers at paraview.org>
> Subject: [EXTERNAL] [Paraview-developers] Removing Cube Axes support from ParaView
>
> Folks,
>
> The "Axes Grid" [1] has been around for over a year now and being used with reasonable success as a replacement for the cube axes. Are there any objections to removing support for the cube axes entirely from future releases of ParaView?
>
> If I don't hear any dissenting voices, we'll go ahead and remove the cube axes in 5.1. If people are still using it, we can let it hang out for a release or two longer.
>
> Thanks,
> Utkarsh
>
> [1] https://blog.kitware.com/new-in-paraview-axes-grid-annotation/
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>
> Search the list archives at: http://markmail.org/search/?q=Paraview-developers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/paraview-developers

From Kevin.Hallock at pfizer.com  Mon May  2 16:33:10 2016
From: Kevin.Hallock at pfizer.com (Hallock, Kevin)
Date: Mon, 2 May 2016 20:33:10 +0000
Subject: [Paraview-developers] Changing Display properties using python
In-Reply-To: <CADHSJjCN0CJXq857PhXz9ic-uAHycKi7VMvb4k6BUv5NcfrvfA@mail.gmail.com>
References: <D34D00C8.14508%Kevin.Hallock@pfizer.com>
 <CADHSJjCN0CJXq857PhXz9ic-uAHycKi7VMvb4k6BUv5NcfrvfA@mail.gmail.com>
Message-ID: <D34D31C0.14527%Kevin.Hallock@pfizer.com>

Thanks! 

Kevin

On 5/2/16, 1:48 PM, "Utkarsh Ayachit" <utkarsh.ayachit at kitware.com> wrote:

>The property is called "Position". This highlights a bug in the code
>where the label is not being used as the name for the property in
>Python. I've reported a bug:
>http://www.paraview.org/Bug/view.php?id=16108
>
>Utkarsh
>
>On Mon, May 2, 2016 at 1:04 PM, Hallock, Kevin <Kevin.Hallock at pfizer.com>
>wrote:
>> Hi everyone,
>>
>> I am writing a simple script to create 3D text at a specified location,
>>but
>> I am having trouble figuring out how to apply a translation to it.
>>Here is
>> my brief code:
>>
>> from paraview import vtk
>> string = "Python"
>> text = paraview.simple.a3DText(Text=string)
>> paraview.simple.SetDisplayProperties(Opacity=1)
>> paraview.simple.Show()
>>
>> Opacity works, but when I use
>>
>> from paraview import vtk
>> string = "Python"
>> text = paraview.simple.a3DText(Text=string)
>> paraview.simple.SetDisplayProperties(Opacity=1, Translation=[1,1,1])
>> paraview.simple.Show()
>>
>>
>> I receive the following error:
>>
>> Traceback (most recent call last):
>>
>> File "<string>", line 4, in <module>
>>
>> File "/Applications/paraview.app/Contents/Python/paraview/simple.py",
>>line
>> 429, in SetDisplayProperties
>>
>> SetProperties(rep, **params)
>>
>> File "/Applications/paraview.app/Contents/Python/paraview/simple.py",
>>line
>> 480, in SetProperties
>>
>> raise AttributeError("object has no property %s" % param)
>>
>> AttributeError: object has no property Translation
>>
>>
>> There is some property that allows it to be translated, but I do not
>>know
>> the correct name. Is there a good resource for finding the names of the
>> individual properties so they can be changed in a script?
>>
>> Thanks,
>>
>> Kevin
>>
>> --
>> Kevin Hallock
>> Visualization and Modeling, Quantitative Medicine
>> Neuroscience and Pain Research Unit
>> Worldwide Research and Development
>> Pfizer Inc
>> 610 Main Street
>> Cambridge, MA 02139
>> Email: kevin.hallock at pfizer.com
>> Fax: 845-474-4001
>>
>>
>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Search the list archives at:
>> http://markmail.org/search/?q=Paraview-developers
>>
>> Follow this link to subscribe/unsubscribe:
>> http://public.kitware.com/mailman/listinfo/paraview-developers
>>


From Kevin.Hallock at pfizer.com  Wed May  4 09:35:26 2016
From: Kevin.Hallock at pfizer.com (Hallock, Kevin)
Date: Wed, 4 May 2016 13:35:26 +0000
Subject: [Paraview-developers] Script commands that hide/show pipeline
	objects
Message-ID: <D34F72E1.145F3%Kevin.Hallock@pfizer.com>

Hi,

I would like to write a script that hides all visible pipeline objects and then shows individual objects based on their names in the pipeline browser.

Specifically, I have imported multiple PLY files (e.g. 3rd-Ventricle.ply) and added source filter objects (e.g. cylinders).  When I use Hide(), it will hide the active object, but if I try Hide(?3rd-Ventricle.ply?) I receive the following error:


Traceback (most recent call last):

File "<string>", line 6, in <module>

File "/Applications/paraview.app/Contents/Python/paraview/simple.py", line 418, in Hide

controller.Hide(proxy, proxy.Port, view)

AttributeError: 'str' object has no attribute 'Port'

Thanks,

Kevin

--
Kevin Hallock
Visualization and Modeling, Quantitative Medicine
Neuroscience and Pain Research Unit
Worldwide Research and Development
Pfizer Inc
610 Main Street
Cambridge, MA 02139
Email: kevin.hallock at pfizer.com<mailto:kevin.hallock at pfizer.com>
Fax: 845-474-4001
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From mathieu.westphal at kitware.com  Wed May  4 09:41:27 2016
From: mathieu.westphal at kitware.com (Mathieu Westphal)
Date: Wed, 4 May 2016 15:41:27 +0200
Subject: [Paraview-developers] Script commands that hide/show pipeline
	objects
In-Reply-To: <D34F72E1.145F3%Kevin.Hallock@pfizer.com>
References: <D34F72E1.145F3%Kevin.Hallock@pfizer.com>
Message-ID: <CAC2t4UQj9MrN=GEv1aJPT4fmsUvo9RUybrBSf+LSwFgpHcPTeQ@mail.gmail.com>

Hello

Hide(FindSource(?3rd-Ventricle.ply"))

should do the trick.

Mathieu Westphal

On Wed, May 4, 2016 at 3:35 PM, Hallock, Kevin <Kevin.Hallock at pfizer.com>
wrote:

> Hi,
>
> I would like to write a script that hides all visible pipeline objects and
> then shows individual objects based on their names in the pipeline browser.
>
>
> Specifically, I have imported multiple PLY files (e.g. 3rd-Ventricle.ply)
> and added source filter objects (e.g. cylinders).  When I use Hide(), it
> will hide the active object, but if I try Hide(?3rd-Ventricle.ply?) I
> receive the following error:
>
> Traceback (most recent call last):
>
> File "<string>", line 6, in <module>
>
> File "/Applications/paraview.app/Contents/Python/paraview/simple.py", line
> 418, in Hide
>
> controller.Hide(proxy, proxy.Port, view)
>
> AttributeError: 'str' object has no attribute 'Port'
>
> Thanks,
>
> Kevin
>
> --
> Kevin Hallock
> Visualization and Modeling, Quantitative Medicine
> Neuroscience and Pain Research Unit
> Worldwide Research and Development
> Pfizer Inc
> 610 Main Street
> Cambridge, MA 02139
> Email: kevin.hallock at pfizer.com
> Fax: 845-474-4001
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Search the list archives at:
> http://markmail.org/search/?q=Paraview-developers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/paraview-developers
>
>
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From Kevin.Hallock at pfizer.com  Wed May  4 10:33:56 2016
From: Kevin.Hallock at pfizer.com (Hallock, Kevin)
Date: Wed, 4 May 2016 14:33:56 +0000
Subject: [Paraview-developers] Script commands that hide/show pipeline
 objects
In-Reply-To: <CAC2t4UQj9MrN=GEv1aJPT4fmsUvo9RUybrBSf+LSwFgpHcPTeQ@mail.gmail.com>
References: <D34F72E1.145F3%Kevin.Hallock@pfizer.com>
 <CAC2t4UQj9MrN=GEv1aJPT4fmsUvo9RUybrBSf+LSwFgpHcPTeQ@mail.gmail.com>
Message-ID: <D34F7FE5.14600%Kevin.Hallock@pfizer.com>

Thanks!  Is there a way to hide all visible pipeline objects?

Kevin

From: Mathieu Westphal <mathieu.westphal at kitware.com<mailto:mathieu.westphal at kitware.com>>
Date: Wednesday, May 4, 2016 at 9:41 AM
To: Kevin Hallock <Kevin.Hallock at pfizer.com<mailto:Kevin.Hallock at pfizer.com>>
Cc: "paraview-developers at paraview.org<mailto:paraview-developers at paraview.org>" <paraview-developers at paraview.org<mailto:paraview-developers at paraview.org>>
Subject: Re: [Paraview-developers] Script commands that hide/show pipeline objects

Hello

Hide(FindSource(?3rd-Ventricle.ply"))

should do the trick.

Mathieu Westphal

On Wed, May 4, 2016 at 3:35 PM, Hallock, Kevin <Kevin.Hallock at pfizer.com<mailto:Kevin.Hallock at pfizer.com>> wrote:
Hi,

I would like to write a script that hides all visible pipeline objects and then shows individual objects based on their names in the pipeline browser.

Specifically, I have imported multiple PLY files (e.g. 3rd-Ventricle.ply) and added source filter objects (e.g. cylinders).  When I use Hide(), it will hide the active object, but if I try Hide(?3rd-Ventricle.ply?) I receive the following error:


Traceback (most recent call last):

File "<string>", line 6, in <module>

File "/Applications/paraview.app/Contents/Python/paraview/simple.py", line 418, in Hide

controller.Hide(proxy, proxy.Port, view)

AttributeError: 'str' object has no attribute 'Port'

Thanks,

Kevin

--
Kevin Hallock
Visualization and Modeling, Quantitative Medicine
Neuroscience and Pain Research Unit
Worldwide Research and Development
Pfizer Inc
610 Main Street
Cambridge, MA 02139
Email: kevin.hallock at pfizer.com<mailto:kevin.hallock at pfizer.com>
Fax: 845-474-4001<tel:845-474-4001>

_______________________________________________
Powered by www.kitware.com<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.kitware.com&d=CwMFaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=1g3UMDoFa-cwhQK9wtg4edOu2A5c1p0DOmW9iBPeZuA&s=bddd_ZIOeCLqVxChpKkk9nqiTYG7ca9q4ND4agsnNsI&e=>

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From mathieu.westphal at kitware.com  Wed May  4 10:54:22 2016
From: mathieu.westphal at kitware.com (Mathieu Westphal)
Date: Wed, 4 May 2016 16:54:22 +0200
Subject: [Paraview-developers] Script commands that hide/show pipeline
	objects
In-Reply-To: <D34F7FE5.14600%Kevin.Hallock@pfizer.com>
References: <D34F72E1.145F3%Kevin.Hallock@pfizer.com>
 <CAC2t4UQj9MrN=GEv1aJPT4fmsUvo9RUybrBSf+LSwFgpHcPTeQ@mail.gmail.com>
 <D34F7FE5.14600%Kevin.Hallock@pfizer.com>
Message-ID: <CAC2t4URy7Wu7-K0304hukMY7LYGpyRQRWW4g20wDJQx45STthg@mail.gmail.com>

no direct method, but still quite easy.

ss = GetSources()
for s in ss:
  Hide(ss[s])

Regards,

Mathieu Westphal

On Wed, May 4, 2016 at 4:33 PM, Hallock, Kevin <Kevin.Hallock at pfizer.com>
wrote:

> Thanks!  Is there a way to hide all visible pipeline objects?
>
> Kevin
>
> From: Mathieu Westphal <mathieu.westphal at kitware.com>
> Date: Wednesday, May 4, 2016 at 9:41 AM
> To: Kevin Hallock <Kevin.Hallock at pfizer.com>
> Cc: "paraview-developers at paraview.org" <paraview-developers at paraview.org>
> Subject: Re: [Paraview-developers] Script commands that hide/show
> pipeline objects
>
> Hello
>
> Hide(FindSource(?3rd-Ventricle.ply"))
>
> should do the trick.
>
> Mathieu Westphal
>
> On Wed, May 4, 2016 at 3:35 PM, Hallock, Kevin <Kevin.Hallock at pfizer.com>
> wrote:
>
>> Hi,
>>
>> I would like to write a script that hides all visible pipeline objects
>> and then shows individual objects based on their names in the pipeline
>> browser.
>>
>> Specifically, I have imported multiple PLY files (e.g. 3rd-Ventricle.ply)
>> and added source filter objects (e.g. cylinders).  When I use Hide(), it
>> will hide the active object, but if I try Hide(?3rd-Ventricle.ply?) I
>> receive the following error:
>>
>> Traceback (most recent call last):
>>
>> File "<string>", line 6, in <module>
>>
>> File "/Applications/paraview.app/Contents/Python/paraview/simple.py",
>> line 418, in Hide
>>
>> controller.Hide(proxy, proxy.Port, view)
>>
>> AttributeError: 'str' object has no attribute 'Port'
>>
>> Thanks,
>>
>> Kevin
>>
>> --
>> Kevin Hallock
>> Visualization and Modeling, Quantitative Medicine
>> Neuroscience and Pain Research Unit
>> Worldwide Research and Development
>> Pfizer Inc
>> 610 Main Street
>> Cambridge, MA 02139
>> Email: kevin.hallock at pfizer.com
>> Fax: 845-474-4001
>>
>> _______________________________________________
>> Powered by www.kitware.com
>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.kitware.com&d=CwMFaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=1g3UMDoFa-cwhQK9wtg4edOu2A5c1p0DOmW9iBPeZuA&s=bddd_ZIOeCLqVxChpKkk9nqiTYG7ca9q4ND4agsnNsI&e=>
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>>
>> Search the list archives at:
>> http://markmail.org/search/?q=Paraview-developers
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>>
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>> http://public.kitware.com/mailman/listinfo/paraview-developers
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From Kevin.Hallock at pfizer.com  Wed May  4 11:21:58 2016
From: Kevin.Hallock at pfizer.com (Hallock, Kevin)
Date: Wed, 4 May 2016 15:21:58 +0000
Subject: [Paraview-developers] Script commands that hide/show pipeline
 objects
In-Reply-To: <CAC2t4URy7Wu7-K0304hukMY7LYGpyRQRWW4g20wDJQx45STthg@mail.gmail.com>
References: <D34F72E1.145F3%Kevin.Hallock@pfizer.com>
 <CAC2t4UQj9MrN=GEv1aJPT4fmsUvo9RUybrBSf+LSwFgpHcPTeQ@mail.gmail.com>
 <D34F7FE5.14600%Kevin.Hallock@pfizer.com>
 <CAC2t4URy7Wu7-K0304hukMY7LYGpyRQRWW4g20wDJQx45STthg@mail.gmail.com>
Message-ID: <D34F8BD2.14626%Kevin.Hallock@pfizer.com>

Thanks!

Kevin

From: Mathieu Westphal <mathieu.westphal at kitware.com<mailto:mathieu.westphal at kitware.com>>
Date: Wednesday, May 4, 2016 at 10:54 AM
To: Kevin Hallock <Kevin.Hallock at pfizer.com<mailto:Kevin.Hallock at pfizer.com>>
Cc: "paraview-developers at paraview.org<mailto:paraview-developers at paraview.org>" <paraview-developers at paraview.org<mailto:paraview-developers at paraview.org>>
Subject: Re: [Paraview-developers] Script commands that hide/show pipeline objects

ss = GetSources()
for s in ss:
  Hide(ss[s])
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From mathieu.westphal at kitware.com  Wed May  4 11:31:18 2016
From: mathieu.westphal at kitware.com (Mathieu Westphal)
Date: Wed, 4 May 2016 17:31:18 +0200
Subject: [Paraview-developers] QtTesting Check Feature in paraview
Message-ID: <CAC2t4USxSBPjL1+aGi8YyC_vtsduaUVgFWUJmuBq=gH46bmTbQ@mail.gmail.com>

Hi

Just to let you know that a "Check" feature is now available in paraview
when generating xml tests. It basically allow value test in widgets and
even screenshots test in the middle of the xml test.
more info here :
https://blog.kitware.com/new-check-feature-in-qttesting-available-in-paraview/

Mathieu Westphal
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From sujin.philip at kitware.com  Fri May  6 11:38:44 2016
From: sujin.philip at kitware.com (Sujin Philip)
Date: Fri, 6 May 2016 11:38:44 -0400
Subject: [Paraview-developers] Panel widget for cylinder 3d widget (slice
	and clip)
Message-ID: <CAEWo2JO2g9Y9FnCkjjphstsu5-90YnF1Mf35fW+10oDrLUwM8Q@mail.gmail.com>

Hello,

I am working on making some modifications to the Cylinder 3d widget used in
ParaView (for clip and slice). As part of these changes, I am planning to
remove the check-boxes for Tubing, Outline Translation, Outside Bounds and
Scaling. It seems like these are low-level controls for the widget and
aren't really needed in ParaView.

I wanted to know if anybody actually needs these UI elements and would like
these to remain in the panel.

Thanks
Sujin
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From joachim.pouderoux at kitware.com  Fri May  6 11:43:40 2016
From: joachim.pouderoux at kitware.com (Joachim Pouderoux)
Date: Fri, 6 May 2016 17:43:40 +0200
Subject: [Paraview-developers] Panel widget for cylinder 3d widget
 (slice and clip)
In-Reply-To: <CAEWo2JO2g9Y9FnCkjjphstsu5-90YnF1Mf35fW+10oDrLUwM8Q@mail.gmail.com>
References: <CAEWo2JO2g9Y9FnCkjjphstsu5-90YnF1Mf35fW+10oDrLUwM8Q@mail.gmail.com>
Message-ID: <CACJ=gThmg+GZr--TSw76XtWBxJd9aaFTL-YgD+6w2dp3ndco1w@mail.gmail.com>

Hi,
Translation and Scaling are useful, especially for the customer who
requested this widget in PV. I propose to put other options as advanced
properties.

Best,
Joachim
Le 6 mai 2016 17:38, "Sujin Philip" <sujin.philip at kitware.com> a ?crit :

> Hello,
>
> I am working on making some modifications to the Cylinder 3d widget used
> in ParaView (for clip and slice). As part of these changes, I am planning
> to remove the check-boxes for Tubing, Outline Translation, Outside Bounds
> and Scaling. It seems like these are low-level controls for the widget and
> aren't really needed in ParaView.
>
> I wanted to know if anybody actually needs these UI elements and would
> like these to remain in the panel.
>
> Thanks
> Sujin
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Search the list archives at:
> http://markmail.org/search/?q=Paraview-developers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/paraview-developers
>
>
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From sujin.philip at kitware.com  Fri May  6 11:51:03 2016
From: sujin.philip at kitware.com (Sujin Philip)
Date: Fri, 6 May 2016 11:51:03 -0400
Subject: [Paraview-developers] Panel widget for cylinder 3d widget
 (slice and clip)
In-Reply-To: <CACJ=gThmg+GZr--TSw76XtWBxJd9aaFTL-YgD+6w2dp3ndco1w@mail.gmail.com>
References: <CAEWo2JO2g9Y9FnCkjjphstsu5-90YnF1Mf35fW+10oDrLUwM8Q@mail.gmail.com>
 <CACJ=gThmg+GZr--TSw76XtWBxJd9aaFTL-YgD+6w2dp3ndco1w@mail.gmail.com>
Message-ID: <CAEWo2JOPmaRiS6KxaNMB6sEYRWuefV2V7YRNQrdHQz9YibUwbw@mail.gmail.com>

Hi Joachim,

Thanks for the information. I will make those options advanced.

Thanks
Sujin


On Fri, May 6, 2016 at 11:43 AM, Joachim Pouderoux <
joachim.pouderoux at kitware.com> wrote:

> Hi,
> Translation and Scaling are useful, especially for the customer who
> requested this widget in PV. I propose to put other options as advanced
> properties.
>
> Best,
> Joachim
> Le 6 mai 2016 17:38, "Sujin Philip" <sujin.philip at kitware.com> a ?crit :
>
>> Hello,
>>
>> I am working on making some modifications to the Cylinder 3d widget used
>> in ParaView (for clip and slice). As part of these changes, I am planning
>> to remove the check-boxes for Tubing, Outline Translation, Outside Bounds
>> and Scaling. It seems like these are low-level controls for the widget and
>> aren't really needed in ParaView.
>>
>> I wanted to know if anybody actually needs these UI elements and would
>> like these to remain in the panel.
>>
>> Thanks
>> Sujin
>>
>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Search the list archives at:
>> http://markmail.org/search/?q=Paraview-developers
>>
>> Follow this link to subscribe/unsubscribe:
>> http://public.kitware.com/mailman/listinfo/paraview-developers
>>
>>
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From sanaz.ghodousi at gmail.com  Sat May  7 10:31:21 2016
From: sanaz.ghodousi at gmail.com (Sanaz Ghodousi)
Date: Sat, 7 May 2016 10:31:21 -0400
Subject: [Paraview-developers] Python3 and ParaViewWeb
Message-ID: <CAA_ro3bA3AYuYssxMOBoLAZ5COnbLPwM=zZGBvDUx3N-sA5r6w@mail.gmail.com>

Hi,

I'd like to know what is the proper approach for migrating from python2
sources of ParaView to python3. I want to load ParaViewWeb modules inside
Jupyter notebooks.

Thanks,
Sanaz
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From sebastien.jourdain at kitware.com  Sun May  8 13:43:50 2016
From: sebastien.jourdain at kitware.com (Sebastien Jourdain)
Date: Sun, 8 May 2016 11:43:50 -0600
Subject: [Paraview-developers] Python3 and ParaViewWeb
In-Reply-To: <CAA_ro3bA3AYuYssxMOBoLAZ5COnbLPwM=zZGBvDUx3N-sA5r6w@mail.gmail.com>
References: <CAA_ro3bA3AYuYssxMOBoLAZ5COnbLPwM=zZGBvDUx3N-sA5r6w@mail.gmail.com>
Message-ID: <CABObKxcKqNKVZRKB6GrocD9k3FYEv4+K+i70rRZiJo5JdXGq6w@mail.gmail.com>

Hi Sanaz,

I'm not sure to know the migration path between Python 2 and 3. I know that
Autobahn does support Python 3, so I would think it is possible but I don't
know how to do it.

Seb

On Sat, May 7, 2016 at 8:31 AM, Sanaz Ghodousi <sanaz.ghodousi at gmail.com>
wrote:

> Hi,
>
> I'd like to know what is the proper approach for migrating from python2
> sources of ParaView to python3. I want to load ParaViewWeb modules inside
> Jupyter notebooks.
>
> Thanks,
> Sanaz
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Search the list archives at:
> http://markmail.org/search/?q=Paraview-developers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/paraview-developers
>
>
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From b.peeters at aia.rwth-aachen.de  Tue May 10 05:20:35 2016
From: b.peeters at aia.rwth-aachen.de (=?UTF-8?Q?Bj=c3=b6rn_Peeters?=)
Date: Tue, 10 May 2016 11:20:35 +0200
Subject: [Paraview-developers] Changing the value of IntVectorProperty
Message-ID: <5731A7E3.7040602@aia.rwth-aachen.de>

Hi all,

is there a way to set the value of an IntVectorProperty textbox from 
inside the RequestInformation
function ? Currently I'm setting a fixed value with "default_values" and 
haven't found any example
for changing it afterwards.

Best regards,
Bj?rn


--
Bj?rn Peeters

Chair of Fluid Mechanics and Institute of Aerodynamics
RWTH Aachen University
W?llnerstra?e 5a, 52062 Aachen, Germany

From cory.quammen at kitware.com  Tue May 10 09:29:37 2016
From: cory.quammen at kitware.com (Cory Quammen)
Date: Tue, 10 May 2016 09:29:37 -0400
Subject: [Paraview-developers] Changing the value of IntVectorProperty
In-Reply-To: <5731A7E3.7040602@aia.rwth-aachen.de>
References: <5731A7E3.7040602@aia.rwth-aachen.de>
Message-ID: <CAB5Fpx70QxiaL24U6sADfcf36j6DT=-RJubd+a11SDvGAeeYPw@mail.gmail.com>

Bj?rn,

I assume you mean within a Programmable Filter or Programmable Source?
The answer is no.

IntVectorProperties exist on the ParaView "side". The scripts in
programmable filters are run only on the VTK side, which does not have
any information about  the ParaView "side".

What is your use case? Are you trying to display some information
after the filter runs?

Thanks,
Cory

On Tue, May 10, 2016 at 5:20 AM, Bj?rn Peeters
<b.peeters at aia.rwth-aachen.de> wrote:
> Hi all,
>
> is there a way to set the value of an IntVectorProperty textbox from inside
> the RequestInformation
> function ? Currently I'm setting a fixed value with "default_values" and
> haven't found any example
> for changing it afterwards.
>
> Best regards,
> Bj?rn
>
>
> --
> Bj?rn Peeters
>
> Chair of Fluid Mechanics and Institute of Aerodynamics
> RWTH Aachen University
> W?llnerstra?e 5a, 52062 Aachen, Germany
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Search the list archives at:
> http://markmail.org/search/?q=Paraview-developers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/paraview-developers



-- 
Cory Quammen
R&D Engineer
Kitware, Inc.

From utkarsh.ayachit at kitware.com  Tue May 10 09:49:02 2016
From: utkarsh.ayachit at kitware.com (Utkarsh Ayachit)
Date: Tue, 10 May 2016 09:49:02 -0400
Subject: [Paraview-developers] Changing the value of IntVectorProperty
In-Reply-To: <5731A7E3.7040602@aia.rwth-aachen.de>
References: <5731A7E3.7040602@aia.rwth-aachen.de>
Message-ID: <CADHSJjBX0APw9bwKgHcsvvPra2GzT1MSS2Btu9pG=RJY4cpmRA@mail.gmail.com>

Bj?rn,

You can do something like the following:

     <IntVectorProperty name="LatLongTessellation"
        number_of_elements="1"
        default_values="none"
        information_property="LatLongTessellationInfo">
        <IntRangeDomain name="range" />
      </IntVectorProperty>

      <IntVectorProperty name="LatLongTessellationInfo"
        command="GetLatLongTessellation"
        information_only="1">
      </IntVectorProperty>

Here, the "LatLongTessllation" will be set to the value ontained using
"LatLongTessellationInfo". This works because when setting the default
values for a property, if the domain for the property doesn't provide
any default and there's a information_property set on that property,
then the information_property's value is copied to the original
property's value as the default.

Utkarsh



On Tue, May 10, 2016 at 5:20 AM, Bj?rn Peeters
<b.peeters at aia.rwth-aachen.de> wrote:
> Hi all,
>
> is there a way to set the value of an IntVectorProperty textbox from inside
> the RequestInformation
> function ? Currently I'm setting a fixed value with "default_values" and
> haven't found any example
> for changing it afterwards.
>
> Best regards,
> Bj?rn
>
>
> --
> Bj?rn Peeters
>
> Chair of Fluid Mechanics and Institute of Aerodynamics
> RWTH Aachen University
> W?llnerstra?e 5a, 52062 Aachen, Germany
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Search the list archives at:
> http://markmail.org/search/?q=Paraview-developers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/paraview-developers

From b.peeters at aia.rwth-aachen.de  Tue May 10 13:14:18 2016
From: b.peeters at aia.rwth-aachen.de (=?UTF-8?Q?Bj=c3=b6rn_Peeters?=)
Date: Tue, 10 May 2016 19:14:18 +0200
Subject: [Paraview-developers] Changing the value of IntVectorProperty
In-Reply-To: <CADHSJjBX0APw9bwKgHcsvvPra2GzT1MSS2Btu9pG=RJY4cpmRA@mail.gmail.com>
References: <5731A7E3.7040602@aia.rwth-aachen.de>
 <CADHSJjBX0APw9bwKgHcsvvPra2GzT1MSS2Btu9pG=RJY4cpmRA@mail.gmail.com>
Message-ID: <573216EA.7030404@aia.rwth-aachen.de>

Hi Utkarsh,

thanks for your help. This works really well.
It is used in a filter and suggests a value based on a property from
an input file. This value can be either accepted or changed by the
user before actually applying the filter.

Regards,
Bj?rn


--
Bj?rn Peeters

Chair of Fluid Mechanics and Institute of Aerodynamics
RWTH Aachen University
W?llnerstra?e 5a, 52062 Aachen, Germany

On 10 May 2016, at 15:49 , Utkarsh Ayachit <utkarsh.ayachit at kitware.com> 
wrote:
> Bj?rn,
>
> You can do something like the following:
>
>       <IntVectorProperty name="LatLongTessellation"
>          number_of_elements="1"
>          default_values="none"
>          information_property="LatLongTessellationInfo">
>          <IntRangeDomain name="range" />
>        </IntVectorProperty>
>
>        <IntVectorProperty name="LatLongTessellationInfo"
>          command="GetLatLongTessellation"
>          information_only="1">
>        </IntVectorProperty>
>
> Here, the "LatLongTessllation" will be set to the value ontained using
> "LatLongTessellationInfo". This works because when setting the default
> values for a property, if the domain for the property doesn't provide
> any default and there's a information_property set on that property,
> then the information_property's value is copied to the original
> property's value as the default.
>
> Utkarsh
>
>
>
> On Tue, May 10, 2016 at 5:20 AM, Bj?rn Peeters
> <b.peeters at aia.rwth-aachen.de> wrote:
>> Hi all,
>>
>> is there a way to set the value of an IntVectorProperty textbox from inside
>> the RequestInformation
>> function ? Currently I'm setting a fixed value with "default_values" and
>> haven't found any example
>> for changing it afterwards.
>>
>> Best regards,
>> Bj?rn
>>
>>
>> --
>> Bj?rn Peeters
>>
>> Chair of Fluid Mechanics and Institute of Aerodynamics
>> RWTH Aachen University
>> W?llnerstra?e 5a, 52062 Aachen, Germany
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Search the list archives at:
>> http://markmail.org/search/?q=Paraview-developers
>>
>> Follow this link to subscribe/unsubscribe:
>> http://public.kitware.com/mailman/listinfo/paraview-developers


From wascott at sandia.gov  Tue May 10 16:39:21 2016
From: wascott at sandia.gov (Scott, W Alan)
Date: Tue, 10 May 2016 20:39:21 +0000
Subject: [Paraview-developers] Schedule estimating
Message-ID: <2fd687a9c22b4f89b8bdea746b4e78dc@ES01AMSNLNT.srn.sandia.gov>

Found this great article on schedule estimating.  So true.

http://techcrunch.com/2016/04/30/estimate-thrice-develop-once/

Alan

--------------------------------------------------------
W. Alan Scott
ParaView Support Manager

SAIC
Sandia National Laboratories, MS 0822
Org 9326 - Building 880 A1-K
(505) 284-0932   FAX (505) 284-5619
---------------------------------------------------------

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From ellonpaiva at gmail.com  Fri May 13 08:39:36 2016
From: ellonpaiva at gmail.com (Ellon Paiva)
Date: Fri, 13 May 2016 14:39:36 +0200
Subject: [Paraview-developers] Handling exceptions from within a Plug-in
Message-ID: <5735CB08.2070701@gmail.com>

Hello all,

I have a plug-in for paraview that wraps filters from an specific 
library, and these filters that may throw exceptions when if not 
configured properly (example, if the input data doesn't have some 
fields). I've been looking for a way to catch these exceptions inside 
the plug-in and inform paraview about the error/problem, like for 
example showing the error information in the paraview error window, but 
I couldn't find an explanation of how to do that. Could anyone explain 
me how to do that or show an example of code for that?

Regards,
Ellon

From mathieu.westphal at kitware.com  Fri May 13 08:47:50 2016
From: mathieu.westphal at kitware.com (Mathieu Westphal)
Date: Fri, 13 May 2016 14:47:50 +0200
Subject: [Paraview-developers] Handling exceptions from within a Plug-in
In-Reply-To: <5735CB08.2070701@gmail.com>
References: <5735CB08.2070701@gmail.com>
Message-ID: <CAC2t4UT_z--zksC6P=GYM_GvmKcTO=su38nyrw+1j3zb26-dNQ@mail.gmail.com>

Hello

I supose it's kind of obvious, but why would catch not work ? you should be
able to catch your library exception in your filter.

Regards,

Mathieu Westphal

On Fri, May 13, 2016 at 2:39 PM, Ellon Paiva <ellonpaiva at gmail.com> wrote:

> Hello all,
>
> I have a plug-in for paraview that wraps filters from an specific library,
> and these filters that may throw exceptions when if not configured properly
> (example, if the input data doesn't have some fields). I've been looking
> for a way to catch these exceptions inside the plug-in and inform paraview
> about the error/problem, like for example showing the error information in
> the paraview error window, but I couldn't find an explanation of how to do
> that. Could anyone explain me how to do that or show an example of code for
> that?
>
> Regards,
> Ellon
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Search the list archives at:
> http://markmail.org/search/?q=Paraview-developers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/paraview-developers
>
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From ellonpaiva at gmail.com  Fri May 13 08:54:19 2016
From: ellonpaiva at gmail.com (Ellon Paiva)
Date: Fri, 13 May 2016 14:54:19 +0200
Subject: [Paraview-developers] Handling exceptions from within a Plug-in
In-Reply-To: <CAC2t4UT_z--zksC6P=GYM_GvmKcTO=su38nyrw+1j3zb26-dNQ@mail.gmail.com>
References: <5735CB08.2070701@gmail.com>
 <CAC2t4UT_z--zksC6P=GYM_GvmKcTO=su38nyrw+1j3zb26-dNQ@mail.gmail.com>
Message-ID: <5735CE7B.3070801@gmail.com>

Hello Mathieu,

Thanks for your answer.

I think I was not clear in my question. Surely I can catch the exception 
in the plugin, but I'm looking for a way to inform paraview that an 
error occurred while executing the filter. Of course this information 
should be passed to ParaView when handling the exception, and probably 
it should halt the processing of the pipeline as well.

I'm looking now into the files of some plugins inside paraview source. I 
found that some plugins use the macro "vtkErrorMacro". Would this work 
for me?

Regards,

Ellon

On 05/13/2016 02:47 PM, Mathieu Westphal wrote:
> Hello
>
> I supose it's kind of obvious, but why would catch not work ? you 
> should be able to catch your library exception in your filter.
>
> Regards,
>
> Mathieu Westphal
>
> On Fri, May 13, 2016 at 2:39 PM, Ellon Paiva <ellonpaiva at gmail.com 
> <mailto:ellonpaiva at gmail.com>> wrote:
>
>     Hello all,
>
>     I have a plug-in for paraview that wraps filters from an specific
>     library, and these filters that may throw exceptions when if not
>     configured properly (example, if the input data doesn't have some
>     fields). I've been looking for a way to catch these exceptions
>     inside the plug-in and inform paraview about the error/problem,
>     like for example showing the error information in the paraview
>     error window, but I couldn't find an explanation of how to do
>     that. Could anyone explain me how to do that or show an example of
>     code for that?
>
>     Regards,
>     Ellon
>     _______________________________________________
>     Powered by www.kitware.com <http://www.kitware.com>
>
>     Visit other Kitware open-source projects at
>     http://www.kitware.com/opensource/opensource.html
>
>     Search the list archives at:
>     http://markmail.org/search/?q=Paraview-developers
>
>     Follow this link to subscribe/unsubscribe:
>     http://public.kitware.com/mailman/listinfo/paraview-developers
>
>

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From mathieu.westphal at kitware.com  Fri May 13 09:05:43 2016
From: mathieu.westphal at kitware.com (Mathieu Westphal)
Date: Fri, 13 May 2016 15:05:43 +0200
Subject: [Paraview-developers] Handling exceptions from within a Plug-in
In-Reply-To: <5735CE7B.3070801@gmail.com>
References: <5735CB08.2070701@gmail.com>
 <CAC2t4UT_z--zksC6P=GYM_GvmKcTO=su38nyrw+1j3zb26-dNQ@mail.gmail.com>
 <5735CE7B.3070801@gmail.com>
Message-ID: <CAC2t4URaqQada464w3eEhS=52Z8hSo1UnnnDruQg0__F2zNe1Q@mail.gmail.com>

Hello

vtkErrorMacro is the way to go to inform the user of the error, but it will
not exit the method, only inform.
After that you need to return 0 if you want the pipeline execution to stop.

Regards,




Mathieu Westphal

On Fri, May 13, 2016 at 2:54 PM, Ellon Paiva <ellonpaiva at gmail.com> wrote:

> Hello Mathieu,
>
> Thanks for your answer.
>
> I think I was not clear in my question. Surely I can catch the exception
> in the plugin, but I'm looking for a way to inform paraview that an error
> occurred while executing the filter. Of course this information should be
> passed to ParaView when handling the exception, and probably it should halt
> the processing of the pipeline as well.
>
> I'm looking now into the files of some plugins inside paraview source. I
> found that some plugins use the macro "vtkErrorMacro". Would this work for
> me?
>
> Regards,
>
> Ellon
>
>
> On 05/13/2016 02:47 PM, Mathieu Westphal wrote:
>
> Hello
>
> I supose it's kind of obvious, but why would catch not work ? you should
> be able to catch your library exception in your filter.
>
> Regards,
>
> Mathieu Westphal
>
> On Fri, May 13, 2016 at 2:39 PM, Ellon Paiva <ellonpaiva at gmail.com> wrote:
>
>> Hello all,
>>
>> I have a plug-in for paraview that wraps filters from an specific
>> library, and these filters that may throw exceptions when if not configured
>> properly (example, if the input data doesn't have some fields). I've been
>> looking for a way to catch these exceptions inside the plug-in and inform
>> paraview about the error/problem, like for example showing the error
>> information in the paraview error window, but I couldn't find an
>> explanation of how to do that. Could anyone explain me how to do that or
>> show an example of code for that?
>>
>> Regards,
>> Ellon
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> <http://www.kitware.com/opensource/opensource.html>
>> http://www.kitware.com/opensource/opensource.html
>>
>> Search the list archives at:
>> http://markmail.org/search/?q=Paraview-developers
>>
>> Follow this link to subscribe/unsubscribe:
>> http://public.kitware.com/mailman/listinfo/paraview-developers
>>
>
>
>
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From ellonpaiva at gmail.com  Fri May 13 09:41:27 2016
From: ellonpaiva at gmail.com (Ellon Paiva)
Date: Fri, 13 May 2016 15:41:27 +0200
Subject: [Paraview-developers] Handling exceptions from within a Plug-in
In-Reply-To: <CAC2t4URaqQada464w3eEhS=52Z8hSo1UnnnDruQg0__F2zNe1Q@mail.gmail.com>
References: <5735CB08.2070701@gmail.com>
 <CAC2t4UT_z--zksC6P=GYM_GvmKcTO=su38nyrw+1j3zb26-dNQ@mail.gmail.com>
 <5735CE7B.3070801@gmail.com>
 <CAC2t4URaqQada464w3eEhS=52Z8hSo1UnnnDruQg0__F2zNe1Q@mail.gmail.com>
Message-ID: <5735D987.2050107@gmail.com>

Mathieu,

I tried the vtkErrorMacro and I got the messages being printed in the 
standard error in the terminal, which is not exactly what I want.

What I am looking for is something like it's shown in the attached 
image: here I forced an error in a python programable filter through a 
syntax error in the script. As you can see the user get an information 
about the error in the "Output Messages" window that pops up when 
"Apply" is pressed, as well as in the terminal. How could I print the 
error message in this Output Window on ParaView?

Regards,

Ellon


On 05/13/2016 03:05 PM, Mathieu Westphal wrote:
> Hello
>
> vtkErrorMacro is the way to go to inform the user of the error, but it 
> will not exit the method, only inform.
> After that you need to return 0 if you want the pipeline execution to 
> stop.
>
> Regards,
>
>
>
>
> Mathieu Westphal
>
> On Fri, May 13, 2016 at 2:54 PM, Ellon Paiva <ellonpaiva at gmail.com 
> <mailto:ellonpaiva at gmail.com>> wrote:
>
>     Hello Mathieu,
>
>     Thanks for your answer.
>
>     I think I was not clear in my question. Surely I can catch the
>     exception in the plugin, but I'm looking for a way to inform
>     paraview that an error occurred while executing the filter. Of
>     course this information should be passed to ParaView when handling
>     the exception, and probably it should halt the processing of the
>     pipeline as well.
>
>     I'm looking now into the files of some plugins inside paraview
>     source. I found that some plugins use the macro "vtkErrorMacro".
>     Would this work for me?
>
>     Regards,
>
>     Ellon
>
>
>     On 05/13/2016 02:47 PM, Mathieu Westphal wrote:
>>     Hello
>>
>>     I supose it's kind of obvious, but why would catch not work ? you
>>     should be able to catch your library exception in your filter.
>>
>>     Regards,
>>
>>     Mathieu Westphal
>>
>>     On Fri, May 13, 2016 at 2:39 PM, Ellon Paiva
>>     <ellonpaiva at gmail.com <mailto:ellonpaiva at gmail.com>> wrote:
>>
>>         Hello all,
>>
>>         I have a plug-in for paraview that wraps filters from an
>>         specific library, and these filters that may throw exceptions
>>         when if not configured properly (example, if the input data
>>         doesn't have some fields). I've been looking for a way to
>>         catch these exceptions inside the plug-in and inform paraview
>>         about the error/problem, like for example showing the error
>>         information in the paraview error window, but I couldn't find
>>         an explanation of how to do that. Could anyone explain me how
>>         to do that or show an example of code for that?
>>
>>         Regards,
>>         Ellon
>>         _______________________________________________
>>         Powered by www.kitware.com <http://www.kitware.com>
>>
>>         Visit other Kitware open-source projects at
>>         http://www.kitware.com/opensource/opensource.html
>>
>>         Search the list archives at:
>>         http://markmail.org/search/?q=Paraview-developers
>>
>>         Follow this link to subscribe/unsubscribe:
>>         http://public.kitware.com/mailman/listinfo/paraview-developers
>>
>>
>
>

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From ellonpaiva at gmail.com  Fri May 13 09:53:51 2016
From: ellonpaiva at gmail.com (Ellon Paiva)
Date: Fri, 13 May 2016 15:53:51 +0200
Subject: [Paraview-developers] Handling exceptions from within a Plug-in
In-Reply-To: <5735D987.2050107@gmail.com>
References: <5735CB08.2070701@gmail.com>
 <CAC2t4UT_z--zksC6P=GYM_GvmKcTO=su38nyrw+1j3zb26-dNQ@mail.gmail.com>
 <5735CE7B.3070801@gmail.com>
 <CAC2t4URaqQada464w3eEhS=52Z8hSo1UnnnDruQg0__F2zNe1Q@mail.gmail.com>
 <5735D987.2050107@gmail.com>
Message-ID: <5735DC6F.8010800@gmail.com>

Hello again Mathieu,

Nenermind my last email: vtkErrorMacro works as expected. :)

Thank you for your help!

Best regards,
Ellon

On 05/13/2016 03:41 PM, Ellon Paiva wrote:
> Mathieu,
>
> I tried the vtkErrorMacro and I got the messages being printed in the 
> standard error in the terminal, which is not exactly what I want.
>
> What I am looking for is something like it's shown in the attached 
> image: here I forced an error in a python programable filter through a 
> syntax error in the script. As you can see the user get an information 
> about the error in the "Output Messages" window that pops up when 
> "Apply" is pressed, as well as in the terminal. How could I print the 
> error message in this Output Window on ParaView?
>
> Regards,
>
> Ellon
>
>
> On 05/13/2016 03:05 PM, Mathieu Westphal wrote:
>> Hello
>>
>> vtkErrorMacro is the way to go to inform the user of the error, but 
>> it will not exit the method, only inform.
>> After that you need to return 0 if you want the pipeline execution to 
>> stop.
>>
>> Regards,
>>
>>
>>
>>
>> Mathieu Westphal
>>
>> On Fri, May 13, 2016 at 2:54 PM, Ellon Paiva <ellonpaiva at gmail.com 
>> <mailto:ellonpaiva at gmail.com>> wrote:
>>
>>     Hello Mathieu,
>>
>>     Thanks for your answer.
>>
>>     I think I was not clear in my question. Surely I can catch the
>>     exception in the plugin, but I'm looking for a way to inform
>>     paraview that an error occurred while executing the filter. Of
>>     course this information should be passed to ParaView when
>>     handling the exception, and probably it should halt the
>>     processing of the pipeline as well.
>>
>>     I'm looking now into the files of some plugins inside paraview
>>     source. I found that some plugins use the macro "vtkErrorMacro".
>>     Would this work for me?
>>
>>     Regards,
>>
>>     Ellon
>>
>>
>>     On 05/13/2016 02:47 PM, Mathieu Westphal wrote:
>>>     Hello
>>>
>>>     I supose it's kind of obvious, but why would catch not work ?
>>>     you should be able to catch your library exception in your filter.
>>>
>>>     Regards,
>>>
>>>     Mathieu Westphal
>>>
>>>     On Fri, May 13, 2016 at 2:39 PM, Ellon Paiva
>>>     <ellonpaiva at gmail.com> wrote:
>>>
>>>         Hello all,
>>>
>>>         I have a plug-in for paraview that wraps filters from an
>>>         specific library, and these filters that may throw
>>>         exceptions when if not configured properly (example, if the
>>>         input data doesn't have some fields). I've been looking for
>>>         a way to catch these exceptions inside the plug-in and
>>>         inform paraview about the error/problem, like for example
>>>         showing the error information in the paraview error window,
>>>         but I couldn't find an explanation of how to do that. Could
>>>         anyone explain me how to do that or show an example of code
>>>         for that?
>>>
>>>         Regards,
>>>         Ellon
>>>         _______________________________________________
>>>         Powered by www.kitware.com <http://www.kitware.com>
>>>
>>>         Visit other Kitware open-source projects at
>>>         http://www.kitware.com/opensource/opensource.html
>>>
>>>         Search the list archives at:
>>>         http://markmail.org/search/?q=Paraview-developers
>>>
>>>         Follow this link to subscribe/unsubscribe:
>>>         http://public.kitware.com/mailman/listinfo/paraview-developers
>>>
>>>
>>
>>
>

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From mathieu.westphal at kitware.com  Fri May 13 09:56:55 2016
From: mathieu.westphal at kitware.com (Mathieu Westphal)
Date: Fri, 13 May 2016 15:56:55 +0200
Subject: [Paraview-developers] Handling exceptions from within a Plug-in
In-Reply-To: <5735D987.2050107@gmail.com>
References: <5735CB08.2070701@gmail.com>
 <CAC2t4UT_z--zksC6P=GYM_GvmKcTO=su38nyrw+1j3zb26-dNQ@mail.gmail.com>
 <5735CE7B.3070801@gmail.com>
 <CAC2t4URaqQada464w3eEhS=52Z8hSo1UnnnDruQg0__F2zNe1Q@mail.gmail.com>
 <5735D987.2050107@gmail.com>
Message-ID: <CAC2t4UQfiK=8DjuQJ2-wgKJA=Vp9pVcKyE030vUH-mNWQuDMww@mail.gmail.com>

Hello

vtkErrorMacro should display on the output window.
You can have a look at
ParaViewCore/ClientServerCore/Core/vtkPythonProgrammableFilter.cxx to see
how it is done.

Regards,



Mathieu Westphal

On Fri, May 13, 2016 at 3:41 PM, Ellon Paiva <ellonpaiva at gmail.com> wrote:

> Mathieu,
>
> I tried the vtkErrorMacro and I got the messages being printed in the
> standard error in the terminal, which is not exactly what I want.
>
> What I am looking for is something like it's shown in the attached image:
> here I forced an error in a python programable filter through a syntax
> error in the script. As you can see the user get an information about the
> error in the "Output Messages" window that pops up when "Apply" is pressed,
> as well as in the terminal. How could I print the error message in this
> Output Window on ParaView?
>
> Regards,
>
> Ellon
>
>
>
> On 05/13/2016 03:05 PM, Mathieu Westphal wrote:
>
> Hello
>
> vtkErrorMacro is the way to go to inform the user of the error, but it
> will not exit the method, only inform.
> After that you need to return 0 if you want the pipeline execution to stop.
>
> Regards,
>
>
>
>
> Mathieu Westphal
>
> On Fri, May 13, 2016 at 2:54 PM, Ellon Paiva <ellonpaiva at gmail.com> wrote:
>
>> Hello Mathieu,
>>
>> Thanks for your answer.
>>
>> I think I was not clear in my question. Surely I can catch the exception
>> in the plugin, but I'm looking for a way to inform paraview that an error
>> occurred while executing the filter. Of course this information should be
>> passed to ParaView when handling the exception, and probably it should halt
>> the processing of the pipeline as well.
>>
>> I'm looking now into the files of some plugins inside paraview source. I
>> found that some plugins use the macro "vtkErrorMacro". Would this work for
>> me?
>>
>> Regards,
>>
>> Ellon
>>
>>
>> On 05/13/2016 02:47 PM, Mathieu Westphal wrote:
>>
>> Hello
>>
>> I supose it's kind of obvious, but why would catch not work ? you should
>> be able to catch your library exception in your filter.
>>
>> Regards,
>>
>> Mathieu Westphal
>>
>> On Fri, May 13, 2016 at 2:39 PM, Ellon Paiva < <ellonpaiva at gmail.com>
>> ellonpaiva at gmail.com> wrote:
>>
>>> Hello all,
>>>
>>> I have a plug-in for paraview that wraps filters from an specific
>>> library, and these filters that may throw exceptions when if not configured
>>> properly (example, if the input data doesn't have some fields). I've been
>>> looking for a way to catch these exceptions inside the plug-in and inform
>>> paraview about the error/problem, like for example showing the error
>>> information in the paraview error window, but I couldn't find an
>>> explanation of how to do that. Could anyone explain me how to do that or
>>> show an example of code for that?
>>>
>>> Regards,
>>> Ellon
>>> _______________________________________________
>>> Powered by www.kitware.com
>>>
>>> Visit other Kitware open-source projects at
>>> <http://www.kitware.com/opensource/opensource.html>
>>> http://www.kitware.com/opensource/opensource.html
>>>
>>> Search the list archives at:
>>> <http://markmail.org/search/?q=Paraview-developers>
>>> http://markmail.org/search/?q=Paraview-developers
>>>
>>> Follow this link to subscribe/unsubscribe:
>>> http://public.kitware.com/mailman/listinfo/paraview-developers
>>>
>>
>>
>>
>
>
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From ellonpaiva at gmail.com  Fri May 13 19:13:15 2016
From: ellonpaiva at gmail.com (Ellon Paiva)
Date: Sat, 14 May 2016 01:13:15 +0200
Subject: [Paraview-developers] Help with advanced GUI for filter
Message-ID: <57365F8B.4000801@gmail.com>

Hello all,

I'm setting myself to implement filter on paraview that may receive a 
considerable number of parameters. I thought about a logical way to 
organize these parameters in a GUI. You will find an attached file 
describing what I have in mind for that.

The problem is that up to now I just made GUIs with simple parameters 
defined using a XML file, mostly based on the information I found in the 
Plugin HowTo page 
<http://www.paraview.org/Wiki/ParaView/Plugin_HowTo#Adding_GUI_Parameters>, 
and thus I don't know how to achieve the desired behavior of this GUI in 
ParaView.

Does anyone know how to achieve that? Any page with related 
material/tutorial/documentation or a source code I could use as a base 
would be very helpful.

Regards,
Ellon
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From ellonpaiva at gmail.com  Thu May 19 12:56:00 2016
From: ellonpaiva at gmail.com (Ellon Paiva)
Date: Thu, 19 May 2016 18:56:00 +0200
Subject: [Paraview-developers] Help with advanced GUI for filter
In-Reply-To: <57365F8B.4000801@gmail.com>
References: <57365F8B.4000801@gmail.com>
Message-ID: <573DF020.1070507@gmail.com>

Hello all,

I got some advances with this interface but I still need some help. :-/

I noticed the Adding Customizations for Properties Panel 
<http://www.paraview.org/Wiki/ParaView/Plugin_HowTo#Adding_Customizations_for_Properties_Panel> 
section in the HowTo and I decided to use the example from ParaView 
source (Examples/Plugins/PropertyWidgets) as a base. I created the 
interface using qt-creator and made it available to ParaView as the 
property widget for a dummy plugin (see images attached). My questions 
now are:

 1. How can I access the values set from on this widget in my filter
    class (which is a subclass of vtkPolyDataAlgorithm, see files
    attached)? When I was creating the interface using XML files only
    the changes were stored in filter attributes through Set/Get
    methods, and thus accessible into RequestData(), but I don't see how
    to do it from the widget I created now.
 2. The Apply button in the interface is does not change to enabled
    state automatically when changing the options in the widged. I tried
    to emit a changeFinished() signal but it didn't enable the Apply
    button. How can I achieve this behavior?
 3. I'm implementing the widget display logic inside the widget class.
    Is that OK or should I do it using pqPropertyWidgetDecorator? Is
    there any preferable way or doesn't matter?


I created a minimal example of what I'm trying to do in the 
MinimalPlugin.tar.gz file attached, I image you'll be able to compile it 
without problems. I included also the Qt Creator .pro file I'm using.

Any help will be appreciated. :)

Regards,

Ellon


On 05/14/2016 01:13 AM, Ellon Paiva wrote:
> Hello all,
>
> I'm setting myself to implement filter on paraview that may receive a 
> considerable number of parameters. I thought about a logical way to 
> organize these parameters in a GUI. You will find an attached file 
> describing what I have in mind for that.
>
> The problem is that up to now I just made GUIs with simple parameters 
> defined using a XML file, mostly based on the information I found in 
> the Plugin HowTo page 
> <http://www.paraview.org/Wiki/ParaView/Plugin_HowTo#Adding_GUI_Parameters>, 
> and thus I don't know how to achieve the desired behavior of this GUI 
> in ParaView.
>
> Does anyone know how to achieve that? Any page with related 
> material/tutorial/documentation or a source code I could use as a base 
> would be very helpful.
>
> Regards,
> Ellon

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From tamas.szep at kit.edu  Fri May 20 10:53:39 2016
From: tamas.szep at kit.edu (=?iso-8859-1?B?U3rpcCwgVGFt4XMgKElWRCk=?=)
Date: Fri, 20 May 2016 14:53:39 +0000
Subject: [Paraview-developers] C++ Plugin
Message-ID: <4d8e42c1efd94e56871d42b4ff501c0b@kit-msx-29.kit.edu>

Hi,

could somebody help me on how to implement a filter with C++ in Paraview, which is capable of reacting on external events by invalidating itself, so that next time when a frame is rendered, the filter (and the dependent pipeline parts if any) get(s) reexecuted. I mainly need it for view-dependent filtering, but you can also consider an input reader that reexecutes when the file is changed as an example.

Thank you for the answers in advance. Kind regards:

Tam?s Sz?p?

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From mathieu.westphal at kitware.com  Fri May 20 11:17:45 2016
From: mathieu.westphal at kitware.com (Mathieu Westphal)
Date: Fri, 20 May 2016 17:17:45 +0200
Subject: [Paraview-developers] C++ Plugin
In-Reply-To: <4d8e42c1efd94e56871d42b4ff501c0b@kit-msx-29.kit.edu>
References: <4d8e42c1efd94e56871d42b4ff501c0b@kit-msx-29.kit.edu>
Message-ID: <CAC2t4UQLsrjkdgBUKn4H32x7Ugs2SQg8Y2e38o75KwHHk=Y=ww@mail.gmail.com>

Hello

Only the pipeline can request an execution of a filter or in your case an
input reader.
What i would do in your situation would be a trick with animation.

Your reader could inform the pipeline it has two timesteps, and this way,
when the pepile execute the animation in a loop, your reader would be
always reexecuted, allowing you to reload any available new data.

Regards,

Mathieu Westphal

On Fri, May 20, 2016 at 4:53 PM, Sz?p, Tam?s (IVD) <tamas.szep at kit.edu>
wrote:

> Hi,
>
> could somebody help me on how to implement a filter with C++ in Paraview,
> which is capable of reacting on external events by invalidating itself, so
> that next time when a frame is rendered, the filter (and the dependent
> pipeline parts if any) get(s) reexecuted. I mainly need it for
> view-dependent filtering, but you can also consider an input reader that
> reexecutes when the file is changed as an example.
>
> Thank you for the answers in advance. Kind regards:
>
> Tam?s Sz?p?
>
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Search the list archives at:
> http://markmail.org/search/?q=Paraview-developers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/paraview-developers
>
>
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From tamas.szep at kit.edu  Fri May 20 12:28:55 2016
From: tamas.szep at kit.edu (=?iso-8859-1?B?U3rpcCwgVGFt4XMgKElWRCk=?=)
Date: Fri, 20 May 2016 16:28:55 +0000
Subject: [Paraview-developers] C++ Plugin
In-Reply-To: <CAC2t4UQLsrjkdgBUKn4H32x7Ugs2SQg8Y2e38o75KwHHk=Y=ww@mail.gmail.com>
References: <4d8e42c1efd94e56871d42b4ff501c0b@kit-msx-29.kit.edu>,
 <CAC2t4UQLsrjkdgBUKn4H32x7Ugs2SQg8Y2e38o75KwHHk=Y=ww@mail.gmail.com>
Message-ID: <1463761686288.48091@kit.edu>

Hi,


thank you for your answer, the file reader in deed reexecutes at each time step. Note that this way the render and pipeline update calls are not synchronized: render can be called more often, but for many applications you can consider this as "close enough". The actual problem with this solution is more that you "use up" the animation mechanism, which you might also need for its actual purpose: to play animations. Anyway, it's useful to know how it works.


Kind regards:


Tam?s Sz?p



________________________________
Von: Mathieu Westphal <mathieu.westphal at kitware.com>
Gesendet: Freitag, 20. Mai 2016 17:17
An: Sz?p, Tam?s (IVD)
Cc: paraview-developers at paraview.org
Betreff: Re: [Paraview-developers] C++ Plugin

Hello

Only the pipeline can request an execution of a filter or in your case an input reader.
What i would do in your situation would be a trick with animation.

Your reader could inform the pipeline it has two timesteps, and this way, when the pepile execute the animation in a loop, your reader would be always reexecuted, allowing you to reload any available new data.

Regards,

Mathieu Westphal

On Fri, May 20, 2016 at 4:53 PM, Sz?p, Tam?s (IVD) <tamas.szep at kit.edu<mailto:tamas.szep at kit.edu>> wrote:
Hi,

could somebody help me on how to implement a filter with C++ in Paraview, which is capable of reacting on external events by invalidating itself, so that next time when a frame is rendered, the filter (and the dependent pipeline parts if any) get(s) reexecuted. I mainly need it for view-dependent filtering, but you can also consider an input reader that reexecutes when the file is changed as an example.

Thank you for the answers in advance. Kind regards:

Tam?s Sz?p?


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From utkarsh.ayachit at kitware.com  Mon May 23 10:27:55 2016
From: utkarsh.ayachit at kitware.com (Utkarsh Ayachit)
Date: Mon, 23 May 2016 10:27:55 -0400
Subject: [Paraview-developers] Help with advanced GUI for filter
In-Reply-To: <573DF020.1070507@gmail.com>
References: <57365F8B.4000801@gmail.com>
	<573DF020.1070507@gmail.com>
Message-ID: <CADHSJjCPpLYEeiNeXOKqPE2Zmk04cqvEgOD-kvYE=skVYCKugQ@mail.gmail.com>

Ellon,

> How can I access the values set from on this widget in my filter class
> (which is a subclass of vtkPolyDataAlgorithm, see files attached)? When I
> was creating the interface using XML files only the changes were stored in
> filter attributes through Set/Get methods, and thus accessible into
> RequestData(), but I don't see how to do it from the widget I created now.

Alas, I'll recommend going back to your previous approach of having
everyting go through filter attributes with Get/Set methods and then
add XML properties for all. That's indeed the way to go. To create a
custom widget for a group of properties, all you have to do is put a
XML element like following in your proxy definition and then define a
custom widget for that group
(http://www.paraview.org/Wiki/ParaView/Properties_Panel#Property_Groups).
Using panel_widget attribute on the group XML, you can tell which
custom widget to create. See existing examples in ParaView, e.g.
pqColorOpacityEditorWidget, it provides a nice demonstration of how
you can use Qt properties and pqPropertyLinks to cleanly hookup UI
items and several properties in the proxy. A simpler example is
pqFontPropertyWidget.

> The Apply button in the interface is does not change to enabled state
> automatically when changing the options in the widged. I tried to emit a
> changeFinished() signal but it didn't enable the Apply button. How can I
> achieve this behavior?

Anytime the user changes the UI, just fire
pqPropertyWidget::changeAvailable(). That should suffice in most
cases. In cases rare cases, you have to fire changeAvailable() and
changeFinished() separately, but we can ignore that until you run into
it.

> I'm implementing the widget display logic inside the widget class. Is that
> OK or should I do it using pqPropertyWidgetDecorator? Is there any
> preferable way or doesn't matter?

That's okay. Decorators are only meant to do minimal tasks like
controlling whether to show/hide/enable/disable the widget.

From ellonpaiva at gmail.com  Mon May 23 17:46:40 2016
From: ellonpaiva at gmail.com (Ellon Paiva)
Date: Mon, 23 May 2016 23:46:40 +0200
Subject: [Paraview-developers] Help with advanced GUI for filter
In-Reply-To: <CADHSJjCPpLYEeiNeXOKqPE2Zmk04cqvEgOD-kvYE=skVYCKugQ@mail.gmail.com>
References: <57365F8B.4000801@gmail.com> <573DF020.1070507@gmail.com>
 <CADHSJjCPpLYEeiNeXOKqPE2Zmk04cqvEgOD-kvYE=skVYCKugQ@mail.gmail.com>
Message-ID: <57437A40.2020905@gmail.com>

Utkarsh,

On 05/23/2016 04:27 PM, Utkarsh Ayachit wrote:
> Ellon,
>
>> How can I access the values set from on this widget in my filter class
>> (which is a subclass of vtkPolyDataAlgorithm, see files attached)? When I
>> was creating the interface using XML files only the changes were stored in
>> filter attributes through Set/Get methods, and thus accessible into
>> RequestData(), but I don't see how to do it from the widget I created now.
> Alas, I'll recommend going back to your previous approach of having
> everyting go through filter attributes with Get/Set methods and then
> add XML properties for all. That's indeed the way to go.

Ok. That's good to know: while I was waiting for an answer I 
reimplemented most of the interface using XML files. It's working more 
or less well, apart from a specific widget I'm still having problem with 
(see below). The attached MinimalExample2.tar.gz has the updated files.

> To create a
> custom widget for a group of properties, all you have to do is put a
> XML element like following in your proxy definition and then define a
> custom widget for that group
> (http://www.paraview.org/Wiki/ParaView/Properties_Panel#Property_Groups).
> Using panel_widget attribute on the group XML, you can tell which
> custom widget to create. See existing examples in ParaView, e.g.
> pqColorOpacityEditorWidget, it provides a nice demonstration of how
> you can use Qt properties and pqPropertyLinks to cleanly hookup UI
> items and several properties in the proxy. A simpler example is
> pqFontPropertyWidget.

Thanks for pointing out the files with the examples. I looked through 
them today but I still didn't see how I can properly "link" my widget 
with paraview. I'll dig more into it tomorrow. And thanks for pointing 
out the pqPropertyLinks class. Now I see what "AddPropertyLink" method does.

Meanwhile, let me explain more: with most of the interface defined only 
in the xml file, the problem is with an specific widget I have that *I 
think* I cannot implement using xml only. Basically, this widget allows 
the user to define a list of "filters", where each filter has some 
parameters. The user can have as much of them as they want, and the 
order of them matters. So, I think that to make this work, I'll need:

 1. A StringVectorProperty with the names of the filters. This should
    not be limited by size because as I said the user can have N of
    these. New items are always added in the end, and the selected item
    can be reordered with "Up" and "Down" buttons, or removed with
    "Remove" button;
    *Question*: How do I deal with StringVectorProperties of dynamic
    size? How can I remove and reorder them?
 2. A vector of of the same size of the filter name vector from 1) for
    each of the possible attribute of the filter that can be set.
    *Q*: How can I manage these vectors of dynamic size? Each
    individually like I should do in 1) or maybe I can use a "group"
    strategy, and create a "vector of a group" of attributes? (Don't
    know if ParaView supports this kind of structure)
 3. Create a descriptor that will exhibit show/hide attributes based on
    the current item being selected. I've programmed two descriptors
    being used in the attached minimal example, but not when the changes
    depends on a custom widget.
    *Q*: How can I access the current selected item of a QListWidget
    inside my custom widget from a descriptor? Maybe I'll need extra
    attributes (like current/old row and current selected filter name)
    that I'll have to keep synchronized or there's any easier way?


>> The Apply button in the interface is does not change to enabled state
>> automatically when changing the options in the widged. I tried to emit a
>> changeFinished() signal but it didn't enable the Apply button. How can I
>> achieve this behavior?
> Anytime the user changes the UI, just fire
> pqPropertyWidget::changeAvailable(). That should suffice in most
> cases. In cases rare cases, you have to fire changeAvailable() and
> changeFinished() separately, but we can ignore that until you run into
> it.

pqPropertyWidget::changeAvailable() was exactly what I was looking for! 
:) Thanks!


Best,

Ellon

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From ellonpaiva at gmail.com  Tue May 24 10:40:47 2016
From: ellonpaiva at gmail.com (Ellon Paiva)
Date: Tue, 24 May 2016 16:40:47 +0200
Subject: [Paraview-developers] Help with advanced GUI for filter
In-Reply-To: <57437A40.2020905@gmail.com>
References: <57365F8B.4000801@gmail.com> <573DF020.1070507@gmail.com>
 <CADHSJjCPpLYEeiNeXOKqPE2Zmk04cqvEgOD-kvYE=skVYCKugQ@mail.gmail.com>
 <57437A40.2020905@gmail.com>
Message-ID: <574467EF.9010308@gmail.com>

Hello again,

Quick question: is there a way to have a vector property that has N 
elements, but only exhibit one of them? If yes, can a descriptor be used 
to control which of the vector elements is exhibited?



On 05/23/2016 11:46 PM, Ellon Paiva wrote:
> Utkarsh,
>
> On 05/23/2016 04:27 PM, Utkarsh Ayachit wrote:
>> Ellon,
>>
>>> How can I access the values set from on this widget in my filter class
>>> (which is a subclass of vtkPolyDataAlgorithm, see files attached)? When I
>>> was creating the interface using XML files only the changes were stored in
>>> filter attributes through Set/Get methods, and thus accessible into
>>> RequestData(), but I don't see how to do it from the widget I created now.
>> Alas, I'll recommend going back to your previous approach of having
>> everyting go through filter attributes with Get/Set methods and then
>> add XML properties for all. That's indeed the way to go.
>
> Ok. That's good to know: while I was waiting for an answer I 
> reimplemented most of the interface using XML files. It's working more 
> or less well, apart from a specific widget I'm still having problem 
> with (see below). The attached MinimalExample2.tar.gz has the updated 
> files.
>
>> To create a
>> custom widget for a group of properties, all you have to do is put a
>> XML element like following in your proxy definition and then define a
>> custom widget for that group
>> (http://www.paraview.org/Wiki/ParaView/Properties_Panel#Property_Groups).
>> Using panel_widget attribute on the group XML, you can tell which
>> custom widget to create. See existing examples in ParaView, e.g.
>> pqColorOpacityEditorWidget, it provides a nice demonstration of how
>> you can use Qt properties and pqPropertyLinks to cleanly hookup UI
>> items and several properties in the proxy. A simpler example is
>> pqFontPropertyWidget.
>
> Thanks for pointing out the files with the examples. I looked through 
> them today but I still didn't see how I can properly "link" my widget 
> with paraview. I'll dig more into it tomorrow. And thanks for pointing 
> out the pqPropertyLinks class. Now I see what "AddPropertyLink" method 
> does.
>
> Meanwhile, let me explain more: with most of the interface defined 
> only in the xml file, the problem is with an specific widget I have 
> that *I think* I cannot implement using xml only. Basically, this 
> widget allows the user to define a list of "filters", where each 
> filter has some parameters. The user can have as much of them as they 
> want, and the order of them matters. So, I think that to make this 
> work, I'll need:
>
>  1. A StringVectorProperty with the names of the filters. This should
>     not be limited by size because as I said the user can have N of
>     these. New items are always added in the end, and the selected
>     item can be reordered with "Up" and "Down" buttons, or removed
>     with "Remove" button;
>     *Question*: How do I deal with StringVectorProperties of dynamic
>     size? How can I remove and reorder them?
>  2. A vector of of the same size of the filter name vector from 1) for
>     each of the possible attribute of the filter that can be set.
>     *Q*: How can I manage these vectors of dynamic size? Each
>     individually like I should do in 1) or maybe I can use a "group"
>     strategy, and create a "vector of a group" of attributes? (Don't
>     know if ParaView supports this kind of structure)
>  3. Create a descriptor that will exhibit show/hide attributes based
>     on the current item being selected. I've programmed two
>     descriptors being used in the attached minimal example, but not
>     when the changes depends on a custom widget.
>     *Q*: How can I access the current selected item of a QListWidget
>     inside my custom widget from a descriptor? Maybe I'll need extra
>     attributes (like current/old row and current selected filter name)
>     that I'll have to keep synchronized or there's any easier way?
>
>
>>> The Apply button in the interface is does not change to enabled state
>>> automatically when changing the options in the widged. I tried to emit a
>>> changeFinished() signal but it didn't enable the Apply button. How can I
>>> achieve this behavior?
>> Anytime the user changes the UI, just fire
>> pqPropertyWidget::changeAvailable(). That should suffice in most
>> cases. In cases rare cases, you have to fire changeAvailable() and
>> changeFinished() separately, but we can ignore that until you run into
>> it.
>
> pqPropertyWidget::changeAvailable() was exactly what I was looking 
> for! :) Thanks!
>
>
> Best,
>
> Ellon
>

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From utkarsh.ayachit at kitware.com  Tue May 24 10:42:04 2016
From: utkarsh.ayachit at kitware.com (Utkarsh Ayachit)
Date: Tue, 24 May 2016 10:42:04 -0400
Subject: [Paraview-developers] Help with advanced GUI for filter
In-Reply-To: <574467EF.9010308@gmail.com>
References: <57365F8B.4000801@gmail.com> <573DF020.1070507@gmail.com>
 <CADHSJjCPpLYEeiNeXOKqPE2Zmk04cqvEgOD-kvYE=skVYCKugQ@mail.gmail.com>
 <57437A40.2020905@gmail.com> <574467EF.9010308@gmail.com>
Message-ID: <CADHSJjCD8s+RVDksrhVWWBHaYNdtL_m=eA7xH1HrUOXdSXzWRw@mail.gmail.com>

> Quick question: is there a way to have a vector property that has N
> elements, but only exhibit one of them? If yes, can a descriptor be used to
> control which of the vector elements is exhibited?

Not by default, you can create a custom widget for the same, however.

From ellonpaiva at gmail.com  Tue May 24 18:51:59 2016
From: ellonpaiva at gmail.com (Ellon Paiva)
Date: Wed, 25 May 2016 00:51:59 +0200
Subject: [Paraview-developers] Help with advanced GUI for filter
In-Reply-To: <CADHSJjCD8s+RVDksrhVWWBHaYNdtL_m=eA7xH1HrUOXdSXzWRw@mail.gmail.com>
References: <57365F8B.4000801@gmail.com> <573DF020.1070507@gmail.com>
 <CADHSJjCPpLYEeiNeXOKqPE2Zmk04cqvEgOD-kvYE=skVYCKugQ@mail.gmail.com>
 <57437A40.2020905@gmail.com> <574467EF.9010308@gmail.com>
 <CADHSJjCD8s+RVDksrhVWWBHaYNdtL_m=eA7xH1HrUOXdSXzWRw@mail.gmail.com>
Message-ID: <5744DB0F.7030504@gmail.com>

Utkarsh,

I finally got my widget to work more or less like I want! FYI I created 
a long StringVectorProperty with the following xml code:

           <StringVectorProperty name="OutlierFilters"
                                 command="AddOutlierFilter"
    clean_command="CleanOutlierFilters"
                                 number_of_elements="0"
    number_of_elements_per_command="14"
                                 element_types="2 2 2 1 0 0 1 1 1 1 1 1 1 1"
                                 repeat_command="1">
             <Documentation>
               Define which outlier filters to use and in which order.
             </Documentation>
           </StringVectorProperty>


and I created a Q_PROPERTY on my widget of QStringList type, with 
functions to create the string from internal data and to set the 
internal data from the string. This way all the internal data is 
serialized through this string.

I still have some problems to address:

 1. When I click on Apply button in the filter with my custom widget the
    RequestData() method of my vtkPolyDataAlgorithm subclass is not
    being called, but if I change the parameters of any filter before
    this one in the pipeline then it's called. Do you know what's going
    wrong here? Maybe I'm forgetting to call something like
    pqPropertyWidget::changeAvailable()?
 2. I would like to have one of the properties of my widget to be
    populated with the names of the input arrays. Can I do it from the
    C++ code?


Best,

Ellon


On 05/24/2016 04:42 PM, Utkarsh Ayachit wrote:
>> Quick question: is there a way to have a vector property that has N
>> elements, but only exhibit one of them? If yes, can a descriptor be used to
>> control which of the vector elements is exhibited?
> Not by default, you can create a custom widget for the same, however.

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From ellonpaiva at gmail.com  Wed May 25 12:28:36 2016
From: ellonpaiva at gmail.com (Ellon Paiva)
Date: Wed, 25 May 2016 18:28:36 +0200
Subject: [Paraview-developers] Help with advanced GUI for filter
In-Reply-To: <5744DB0F.7030504@gmail.com>
References: <57365F8B.4000801@gmail.com> <573DF020.1070507@gmail.com>
 <CADHSJjCPpLYEeiNeXOKqPE2Zmk04cqvEgOD-kvYE=skVYCKugQ@mail.gmail.com>
 <57437A40.2020905@gmail.com> <574467EF.9010308@gmail.com>
 <CADHSJjCD8s+RVDksrhVWWBHaYNdtL_m=eA7xH1HrUOXdSXzWRw@mail.gmail.com>
 <5744DB0F.7030504@gmail.com>
Message-ID: <5745D2B4.60103@gmail.com>

Hello again,

Another question: How can I open a temporal file series from a c++ code? 
Could someone point out a file/example that I can use to take 
inspiration from?

And an update in a previous question:
> I still have some problems to address:
>
>  1. When I click on Apply button in the filter with my custom widget
>     the RequestData() method of my vtkPolyDataAlgorithm subclass is
>     not being called, but if I change the parameters of any filter
>     before this one in the pipeline then it's called. Do you know
>     what's going wrong here? Maybe I'm forgetting to call something
>     like pqPropertyWidget::changeAvailable()?
>

Not a problem anymore: from the vtkSetMacro code I found out that I 
should call this->Modified().

>   * I would like to have one of the properties of my widget to be
>     populated with the names of the input arrays. Can I do it from the
>     C++ code?
>

This I still don't know how to do it.

Best,

Ellon
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From utkarsh.ayachit at kitware.com  Wed May 25 12:40:14 2016
From: utkarsh.ayachit at kitware.com (Utkarsh Ayachit)
Date: Wed, 25 May 2016 12:40:14 -0400
Subject: [Paraview-developers] Help with advanced GUI for filter
In-Reply-To: <5745D2B4.60103@gmail.com>
References: <57365F8B.4000801@gmail.com> <573DF020.1070507@gmail.com>
 <CADHSJjCPpLYEeiNeXOKqPE2Zmk04cqvEgOD-kvYE=skVYCKugQ@mail.gmail.com>
 <57437A40.2020905@gmail.com> <574467EF.9010308@gmail.com>
 <CADHSJjCD8s+RVDksrhVWWBHaYNdtL_m=eA7xH1HrUOXdSXzWRw@mail.gmail.com>
 <5744DB0F.7030504@gmail.com> <5745D2B4.60103@gmail.com>
Message-ID: <CADHSJjAK2CVZNOUBQWO_CEu2z3Z0xUVtmGbk7rfLEiPpJrVjCA@mail.gmail.com>

> I would like to have one of the properties of my widget to be populated with
> the names of the input arrays. Can I do it from the C++ code?

This is where domains come into play. See how this is done for other
filters, e,g. Threshold filter (in filters.xml) has a domain to allow
selecting arrays from the input.

From ellonpaiva at gmail.com  Wed May 25 17:14:50 2016
From: ellonpaiva at gmail.com (Ellon Paiva)
Date: Wed, 25 May 2016 23:14:50 +0200
Subject: [Paraview-developers] Help with advanced GUI for filter
In-Reply-To: <CADHSJjAK2CVZNOUBQWO_CEu2z3Z0xUVtmGbk7rfLEiPpJrVjCA@mail.gmail.com>
References: <57365F8B.4000801@gmail.com> <573DF020.1070507@gmail.com>
 <CADHSJjCPpLYEeiNeXOKqPE2Zmk04cqvEgOD-kvYE=skVYCKugQ@mail.gmail.com>
 <57437A40.2020905@gmail.com> <574467EF.9010308@gmail.com>
 <CADHSJjCD8s+RVDksrhVWWBHaYNdtL_m=eA7xH1HrUOXdSXzWRw@mail.gmail.com>
 <5744DB0F.7030504@gmail.com> <5745D2B4.60103@gmail.com>
 <CADHSJjAK2CVZNOUBQWO_CEu2z3Z0xUVtmGbk7rfLEiPpJrVjCA@mail.gmail.com>
Message-ID: <574615CA.6000202@gmail.com>

On 05/25/2016 06:40 PM, Utkarsh Ayachit wrote:
>> I would like to have one of the properties of my widget to be populated with
>> the names of the input arrays. Can I do it from the C++ code?
> This is where domains come into play. See how this is done for other
> filters, e,g. Threshold filter (in filters.xml) has a domain to allow
> selecting arrays from the input.

Thanks again for your reply.

I've already set a combo box from an input in the xml file in the plugin 
I'm developing and it works well, and the filters.xml file helped me a 
lot. The question is how to set it when the combo box is already inside 
my custom widget (it's currently a QComboBox declared in the Ui class of 
my custom widget). Can I still set the domain of this "sub-widget" 
through xml?

What I imagine I could do is to substitute the QComboBox by a 
pqIntVectorPropertyWidget and use a vtkSMEnumerationDomain somehow to 
make this widget be exhibited as a combobox with the correct strings 
from the input, but I don't see how.

I'm sorry about all these questions but I'm really struggling to 
understand the widgets/SM-objects/proxys/domains of ParaView code and 
how they interact with each other. :(

Best,

Ellon

From lokman.rahmani at irisa.fr  Thu May 26 11:34:17 2016
From: lokman.rahmani at irisa.fr (Lokman Rahmani)
Date: Thu, 26 May 2016 17:34:17 +0200 (CEST)
Subject: [Paraview-developers] Fwd: vtkPVCompositeDataPipeline : Can not
 execute simple alorithm without output ports
In-Reply-To: <640898823.37750879.1464276592666.JavaMail.zimbra@irisa.fr>
References: <2017732725.37639441.1464272462439.JavaMail.zimbra@irisa.fr>
 <640898823.37750879.1464276592666.JavaMail.zimbra@irisa.fr>
Message-ID: <1752938583.37757368.1464276857059.JavaMail.zimbra@irisa.fr>

Hi all, 

I am getting this error when running my simulation with Catalyst adaptor: 

ERROR: In /root/ParaView-v5.0.0-source/VTK/Common/ExecutionModel/vtkCompositeDataPipeline.cxx, line 171 
vtkPVCompositeDataPipeline (0x3df1e30): Can not execute simple alorithm without output ports 

You can find below the relevant sections of my code. 
The python script (generated by ParaView GUI) that I am using is attached. 

----------------- 
Adaptor.cpp 
----------------- 

1 /* 
2 * Based on ParaViewCatalyst Example 
3 * https://github.com/Kitware/ParaViewCatalystExampleCode/tree/master/CxxMultiPieceExample 
4 */ 

31 namespace Adaptor 
32 { 
33 
34 void BuildVTKGrid(Grid& grid) 
35 { 

40 VTKGrid->SetNumberOfBlocks(mpiSize); 
41 
42 vtkNew<vtkFloatArray> xArray, yArray, zArray; 
43 xArray->SetArray(grid.GetXLocalCoord(), static_cast<vtkIdType>(grid.GetExtents()[0]), 1); 

46 
47 vtkNew<vtkRectilinearGrid> rectGrid; 
48 rectGrid->SetDimensions(grid.GetExtents()[0],grid.GetExtents()[1], grid.GetExtents()[2]); 
49 rectGrid->SetXCoordinates(xArray.GetPointer()); 

53 VTKGrid->SetBlock(mpiRank,rectGrid.GetPointer()); 
54 
55 } 
56 
57 void UpdateVTKAttributes(Grid& grid, Attributes& attributes) 
58 { 

64 vtkDataSet* dataSet = vtkDataSet::SafeDownCast(VTKGrid->GetBlock(mpiRank)); 
65 if(dataSet->GetPointData()->GetNumberOfArrays() == 0) 
66 { 
67 vtkNew<vtkFloatArray> array; 
68 array->SetName("dbz"); 
69 array->SetNumberOfComponents(1); 
70 dataSet->GetPointData()->AddArray(array.GetPointer()); 
71 } 
72 
73 vtkFloatArray* dbz = vtkFloatArray::SafeDownCast(dataSet->GetPointData()->GetArray("dbz")); 
74 dbz->SetArray(attributes.GetDbzArray(), static_cast<vtkIdType>(grid.GetNumberOfLocalPoints()), 1 ); 

77 } 
78 

80 void BuildVTKDataStructures(Grid& grid, Attributes& attributes) 
81 { 
82 if (VTKGrid == NULL){ 
83 VTKGrid = vtkMultiBlockDataSet::New(); 
84 BuildVTKGrid(grid); 
85 } 
86 UpdateVTKAttributes(grid, attributes); 
87 } 

90 int Initialize (const char* scriptPath) 
91 { 
92 if(Processor == NULL) 
93 { 
94 Processor = vtkCPProcessor::New(); 
95 Processor->Initialize(); 
96 } else 
97 { 
98 Processor->RemoveAllPipelines(); 
99 } 
100 
101 vtkNew<vtkCPPythonScriptPipeline> pipeline; 
102 if (pipeline->Initialize(scriptPath) == 0){ 
103 std::cerr << "Cannot read python script " << scriptPath << std::endl; 
104 return 1; 
105 } 
106 
107 Processor->AddPipeline(pipeline.GetPointer()); 
108 return 0; 
109 } 

111 int Finalize() 
112 { 
113 if(Processor) 
114 { 
115 Processor->Delete(); 
116 Processor = NULL; 
117 } 
118 if(VTKGrid) 
119 { 
120 VTKGrid->Delete(); 
121 VTKGrid = NULL; 
122 } 
123 
124 return 0; 
125 } 
126 
127 int CoProcess(Grid& grid, Attributes& attributes, int timestep) 
128 { 
129 vtkNew<vtkCPDataDescription> dataDescription; 
130 dataDescription->AddInput("input"); 
131 dataDescription->SetTimeData(timestep,timestep); 
132 if(Processor->RequestDataDescription(dataDescription.GetPointer()) != 0) 
133 { 
134 BuildVTKDataStructures(grid, attributes); 
135 dataDescription->GetInputDescriptionByName("input")->SetGrid(VTKGrid); 
136 Processor->CoProcess(dataDescription.GetPointer()); 
137 } 
138 
139 return 0; 
140 } 
141 
142 } 

Thanks for your help, 
Lokman 
================================ 
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From ellonpaiva at gmail.com  Thu May 26 12:25:44 2016
From: ellonpaiva at gmail.com (Ellon Paiva)
Date: Thu, 26 May 2016 18:25:44 +0200
Subject: [Paraview-developers] Filter with multiple time-aware outputs
Message-ID: <57472388.7070109@gmail.com>

Hello,

While developing a filter for a plugin I found the following situation: 
I need to implement a filter that has two inputs that are not time aware 
and 3 time aware outputs. Moreover, the number of time steps of the 
outputs is unknown until the execution of filter's RequestData(), so the 
output ports should be configured from inside this method. Is it 
possible to implement this kind of filter connections in ParaView?

Regards,

Ellon

From utkarsh.ayachit at kitware.com  Thu May 26 15:18:20 2016
From: utkarsh.ayachit at kitware.com (Utkarsh Ayachit)
Date: Thu, 26 May 2016 15:18:20 -0400
Subject: [Paraview-developers] Filter with multiple time-aware outputs
In-Reply-To: <57472388.7070109@gmail.com>
References: <57472388.7070109@gmail.com>
Message-ID: <CADHSJjA6POH03k9fB5LmG8mPiJ1nGdbzDYEo_aucCzu2vKzYUA@mail.gmail.com>

> While developing a filter for a plugin I found the following situation: I
> need to implement a filter that has two inputs that are not time aware and 3
> time aware outputs. Moreover, the number of time steps of the outputs is
> unknown until the execution of filter's RequestData(), so the output ports
> should be configured from inside this method. Is it possible to implement
> this kind of filter connections in ParaView?

Alas, no. This is beyond what is supported by ParaView. ParaView needs
to be aware of timesteps before RequestData(), in RequestInformation()
more specifically.

From ellonpaiva at gmail.com  Thu May 26 17:46:10 2016
From: ellonpaiva at gmail.com (Ellon Paiva)
Date: Thu, 26 May 2016 23:46:10 +0200
Subject: [Paraview-developers] Filter with multiple time-aware outputs
In-Reply-To: <CADHSJjA6POH03k9fB5LmG8mPiJ1nGdbzDYEo_aucCzu2vKzYUA@mail.gmail.com>
References: <57472388.7070109@gmail.com>
 <CADHSJjA6POH03k9fB5LmG8mPiJ1nGdbzDYEo_aucCzu2vKzYUA@mail.gmail.com>
Message-ID: <57476EA2.6050506@gmail.com>

On 05/26/2016 09:18 PM, Utkarsh Ayachit wrote:
>> While developing a filter for a plugin I found the following situation: I
>> need to implement a filter that has two inputs that are not time aware and 3
>> time aware outputs. Moreover, the number of time steps of the outputs is
>> unknown until the execution of filter's RequestData(), so the output ports
>> should be configured from inside this method. Is it possible to implement
>> this kind of filter connections in ParaView?
> Alas, no. This is beyond what is supported by ParaView. ParaView needs
> to be aware of timesteps before RequestData(), in RequestInformation()
> more specifically.

Oh, I was afraid of that. :( This means I should change the strategy to 
implement my plugin.

Is it possible to trigger a file reader from a filter input? If it's 
possible I think I can achieve this using two filters in sequence in the 
pipeline: the first dump data on files, and the second would read the 
data from the disk when it receives a new data on its input port. This 
way the second filter would know already the number of time steps in its 
RequestInformation() to configure the output ports before reading the 
files.

From utkarsh.ayachit at kitware.com  Fri May 27 08:42:01 2016
From: utkarsh.ayachit at kitware.com (Utkarsh Ayachit)
Date: Fri, 27 May 2016 08:42:01 -0400
Subject: [Paraview-developers] Filter with multiple time-aware outputs
In-Reply-To: <57476EA2.6050506@gmail.com>
References: <57472388.7070109@gmail.com>
 <CADHSJjA6POH03k9fB5LmG8mPiJ1nGdbzDYEo_aucCzu2vKzYUA@mail.gmail.com>
 <57476EA2.6050506@gmail.com>
Message-ID: <CADHSJjChJKDO0e+f4vyjCp6EU2H=NMRR+_-VETrX9rsKZaXPfA@mail.gmail.com>

> Is it possible to trigger a file reader from a filter input? If it's
> possible I think I can achieve this using two filters in sequence in the
> pipeline: the first dump data on files, and the second would read the data
> from the disk when it receives a new data on its input port. This way the
> second filter would know already the number of time steps in its
> RequestInformation() to configure the output ports before reading the files.

I am not sure I follow, but what I followed doesn't seem like it would
work. The second filter still only receive new data on its input in
RequestData() so not sure how it will already know the timesteps.

Do you want to try explaining what are you trying to do succinctly,
maybe someone can suggest an alternative approach.

From ellonpaiva at gmail.com  Sat May 28 06:43:13 2016
From: ellonpaiva at gmail.com (Ellon Paiva)
Date: Sat, 28 May 2016 12:43:13 +0200
Subject: [Paraview-developers] Filter with multiple time-aware outputs
In-Reply-To: <CADHSJjChJKDO0e+f4vyjCp6EU2H=NMRR+_-VETrX9rsKZaXPfA@mail.gmail.com>
References: <57472388.7070109@gmail.com>
 <CADHSJjA6POH03k9fB5LmG8mPiJ1nGdbzDYEo_aucCzu2vKzYUA@mail.gmail.com>
 <57476EA2.6050506@gmail.com>
 <CADHSJjChJKDO0e+f4vyjCp6EU2H=NMRR+_-VETrX9rsKZaXPfA@mail.gmail.com>
Message-ID: <57497641.6020303@gmail.com>

     Utkarsh,

On 05/27/2016 02:42 PM, Utkarsh Ayachit wrote:
>> Is it possible to trigger a file reader from a filter input? If it's
>> possible I think I can achieve this using two filters in sequence in the
>> pipeline: the first dump data on files, and the second would read the data
>> from the disk when it receives a new data on its input port. This way the
>> second filter would know already the number of time steps in its
>> RequestInformation() to configure the output ports before reading the files.
> I am not sure I follow, but what I followed doesn't seem like it would
> work. The second filter still only receive new data on its input in
> RequestData() so not sure how it will already know the timesteps.

Well, if I know the path to the files I'm writing in the first filter 
(for example: /tmp/myfiles_1.vtk, /tmp/myfiles_2.vtk, etc) I could just 
check how many of these files exist in the disk, and this number would 
be the number of time steps. The value of the timesteps is just the 
index of the file (1, 2, etc).

> Do you want to try explaining what are you trying to do succinctly,
> maybe someone can suggest an alternative approach.

OK, let me explain. I'm using a library that performs ICP 
(libpointmatcher) on point clouds. The library itself is very modular on 
it's components (data filters, error minimizers, matchers, outlier 
rejectors, etc), it's structured in a pipeline fashion, like in 
ParaView. It has already an option to inspect the ICP process by dumping 
the point clouds (i.e. the reference cloud and the one being matched) 
and the point associations between these clouds in .vtk files (three 
files for every iteration of the ICP loop). These files can be loaded on 
ParaView through a standard reader and it's possible to inspect the ICP 
process through animation.

What I want to implement is a way to reconfigure the parameters of the 
libpointmatcher's ICP pipeline through ParaView, in a way that if a 
parameter is changed in any libpointmatcher module in paraview (through 
filter properties), one can just press "Apply" to trigger the ICP run 
and the result would be exhibited in ParaView. I believe this would 
improve the workflow of configuring ICP solutions using this library.

The data filters classes are already wrapped, and I want to wrap the 
"ICP core". As an iteractive process, it has a loop, and currently I 
don't know how to implement loops in paraview's pipeline (I know there's 
something to do with a vtkExecutive) and also the pipeline would be 
somehow complex for the user to build. So I decided to create a single 
filter that wraps all the loop part of the ICP pipeline.

But then you told me I cannot configure dynamically the number of 
outputs of a filter from inside it's RequestData(), and I don't know how 
many iteractions of ICP I'll need before converging (if converging). One 
information I have is the maximum number of iteractions I may have, but 
the algorithm may finish before it.

I'm attaching a image of the pipeline I was implementing here. This may 
help you to understand.

Sorry for the long email.

Regards,

Ellon

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From mahmadza at vols.utk.edu  Mon May 30 00:56:02 2016
From: mahmadza at vols.utk.edu (Mohammad A.Raji)
Date: Sun, 29 May 2016 23:56:02 -0500
Subject: [Paraview-developers] Help with fixing a bug in one of the plugins
Message-ID: <CAJAsjdo5miWcnrf4U2th83vJAKojzp20se_Kh9zTvWjk-NUhbw@mail.gmail.com>

Hello all,

I'm quite new to the Paraview world and I believe I've noticed a bug in the
PointSprite plugin. Is the pull request procedure the same for plugins as
well? (Similar to
https://github.com/Kitware/ParaView/blob/master/CONTRIBUTING.md?)

It would also be wonderful if someone could take a look at the issue just
so that I know I haven't gone insane.

In /Plugins/PointSprite/Graphics/vtk1DGaussianTransferFunction.cxx:186 the
function AddGaussianControlPoint calls SetGaussianControlPoint but with the
wrong order of parameters, incorrectly switching width and height in the
end control points tuple. Here's a link to the file on Github:
https://github.com/Kitware/ParaView/blob/ed854cdd8b1b0f704d3c6c3d0d2f2a14b882cd92/Plugins/PointSprite/Graphics/vtk1DGaussianTransferFunction.cxx
.

Regards,
Mo
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From joachim.pouderoux at kitware.com  Mon May 30 03:32:37 2016
From: joachim.pouderoux at kitware.com (Joachim Pouderoux)
Date: Mon, 30 May 2016 09:32:37 +0200
Subject: [Paraview-developers] Help with fixing a bug in one of the
	plugins
In-Reply-To: <CAJAsjdo5miWcnrf4U2th83vJAKojzp20se_Kh9zTvWjk-NUhbw@mail.gmail.com>
References: <CAJAsjdo5miWcnrf4U2th83vJAKojzp20se_Kh9zTvWjk-NUhbw@mail.gmail.com>
Message-ID: <CACJ=gTiFyvL-KCAuxu6+8hAKKT0Y18oJ-oEGVeK3ULnz3es4Uw@mail.gmail.com>

Hello,

Absolutely, the GaussianPoint plugin comes with ParaView sources so you can
follow notes in CONTRIBUTING.md

Regarding the reported issue, it seems like you are right: height and width
are reversed. However, I have not been able to found any call to this
helper function (AddGaussianControlPoint).

Best regards,
Joachim

*Joachim Pouderoux*

*PhD, Technical Expert*
*Kitware SAS <http://www.kitware.fr>*


2016-05-30 6:56 GMT+02:00 Mohammad A.Raji <mahmadza at vols.utk.edu>:

> Hello all,
>
> I'm quite new to the Paraview world and I believe I've noticed a bug in
> the PointSprite plugin. Is the pull request procedure the same for plugins
> as well? (Similar to
> https://github.com/Kitware/ParaView/blob/master/CONTRIBUTING.md?)
>
> It would also be wonderful if someone could take a look at the issue just
> so that I know I haven't gone insane.
>
> In /Plugins/PointSprite/Graphics/vtk1DGaussianTransferFunction.cxx:186 the
> function AddGaussianControlPoint calls SetGaussianControlPoint but with the
> wrong order of parameters, incorrectly switching width and height in the
> end control points tuple. Here's a link to the file on Github:
> https://github.com/Kitware/ParaView/blob/ed854cdd8b1b0f704d3c6c3d0d2f2a14b882cd92/Plugins/PointSprite/Graphics/vtk1DGaussianTransferFunction.cxx
> .
>
> Regards,
> Mo
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Search the list archives at:
> http://markmail.org/search/?q=Paraview-developers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/paraview-developers
>
>
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From utkarsh.ayachit at kitware.com  Mon May 30 08:38:00 2016
From: utkarsh.ayachit at kitware.com (Utkarsh Ayachit)
Date: Mon, 30 May 2016 08:38:00 -0400
Subject: [Paraview-developers] Filter with multiple time-aware outputs
In-Reply-To: <57497641.6020303@gmail.com>
References: <57472388.7070109@gmail.com>
 <CADHSJjA6POH03k9fB5LmG8mPiJ1nGdbzDYEo_aucCzu2vKzYUA@mail.gmail.com>
 <57476EA2.6050506@gmail.com>
 <CADHSJjChJKDO0e+f4vyjCp6EU2H=NMRR+_-VETrX9rsKZaXPfA@mail.gmail.com>
 <57497641.6020303@gmail.com>
Message-ID: <CADHSJjBj3mkhADURe2Z0B2A+UC0ktHNbr+-N8A86WMKdAcT_cw@mail.gmail.com>

Ellon,

One thing to note is that ParaView/VTK pipelines don't support
pipeline loops. Based on what you explained, the "loop" is within a
data filter, namely "ICP Core". So rather than thinking of it as a
loop, think of it as a data producer that keeps on generating new
data/timesteps. Okay, so let's say we'll remodel ICPCore so that it
has a method which someone can call to make the filter "discover" new
timesteps, e.g. ICPCore::DiscoverTimesteps(). In this method, if new
timesteps are discovered, make sure to call this->Modified() on the
filter.

Now the next step would be to periodically call this method on the
filter to make it register new timesteps and tell that to ParaView UI.
For starters, just add a <Property name="DiscoverTimesteps"
command="DiscoverTimesteps" /> property to the XML for ICPCore. That
will show up as a button (using pqCommandPropertyWidget) in the
Properties panel. Check pqCommandPropertyWidget::buttonClicked(),
where it calls UpdatePipelineInformation() on the filter proxy, which
in will call DiscoverTimesteps() and the RequestInformation() on the
filter where it can announce the new timesteps (along with the old
ones).

Once this is working, you can automate this by using a timer-based
loop to periodically trigger the DiscoverTimeSteps property if you
want.

Hope that helps,
Utkarsh

On Sat, May 28, 2016 at 6:43 AM, Ellon Paiva <ellonpaiva at gmail.com> wrote:
>     Utkarsh,
>
> On 05/27/2016 02:42 PM, Utkarsh Ayachit wrote:
>>>
>>> Is it possible to trigger a file reader from a filter input? If it's
>>> possible I think I can achieve this using two filters in sequence in the
>>> pipeline: the first dump data on files, and the second would read the
>>> data
>>> from the disk when it receives a new data on its input port. This way the
>>> second filter would know already the number of time steps in its
>>> RequestInformation() to configure the output ports before reading the
>>> files.
>>
>> I am not sure I follow, but what I followed doesn't seem like it would
>> work. The second filter still only receive new data on its input in
>> RequestData() so not sure how it will already know the timesteps.
>
>
> Well, if I know the path to the files I'm writing in the first filter (for
> example: /tmp/myfiles_1.vtk, /tmp/myfiles_2.vtk, etc) I could just check how
> many of these files exist in the disk, and this number would be the number
> of time steps. The value of the timesteps is just the index of the file (1,
> 2, etc).
>
>> Do you want to try explaining what are you trying to do succinctly,
>> maybe someone can suggest an alternative approach.
>
>
> OK, let me explain. I'm using a library that performs ICP (libpointmatcher)
> on point clouds. The library itself is very modular on it's components (data
> filters, error minimizers, matchers, outlier rejectors, etc), it's
> structured in a pipeline fashion, like in ParaView. It has already an option
> to inspect the ICP process by dumping the point clouds (i.e. the reference
> cloud and the one being matched) and the point associations between these
> clouds in .vtk files (three files for every iteration of the ICP loop).
> These files can be loaded on ParaView through a standard reader and it's
> possible to inspect the ICP process through animation.
>
> What I want to implement is a way to reconfigure the parameters of the
> libpointmatcher's ICP pipeline through ParaView, in a way that if a
> parameter is changed in any libpointmatcher module in paraview (through
> filter properties), one can just press "Apply" to trigger the ICP run and
> the result would be exhibited in ParaView. I believe this would improve the
> workflow of configuring ICP solutions using this library.
>
> The data filters classes are already wrapped, and I want to wrap the "ICP
> core". As an iteractive process, it has a loop, and currently I don't know
> how to implement loops in paraview's pipeline (I know there's something to
> do with a vtkExecutive) and also the pipeline would be somehow complex for
> the user to build. So I decided to create a single filter that wraps all the
> loop part of the ICP pipeline.
>
> But then you told me I cannot configure dynamically the number of outputs of
> a filter from inside it's RequestData(), and I don't know how many
> iteractions of ICP I'll need before converging (if converging). One
> information I have is the maximum number of iteractions I may have, but the
> algorithm may finish before it.
>
> I'm attaching a image of the pipeline I was implementing here. This may help
> you to understand.
>
> Sorry for the long email.
>
> Regards,
>
> Ellon
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Search the list archives at:
> http://markmail.org/search/?q=Paraview-developers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/paraview-developers
>