[Paraview-developers] [Paraview] vtkImageData Plugin, vtkImageData not rendered

Thu Jan 12 16:28:01 EST 2017

OK. That's weired, your VTI is correct.
And what if you save the output of your filter/reader with ParaView "Save
Data"? Is data correctly saved and reloaded correctly?

Joachim

*Joachim Pouderoux*, PhD

*Technical Expert - Scientific Computing Team*
*Kitware SAS <http://www.kitware.fr>*

2017-01-11 8:14 GMT-04:00 Lodron, Gerald <Gerald.Lodron at joanneum.at>:

> i have uploaded the vti onto
>
> https://expirebox.com/download/60e7c1e8d177f282ae90d42f75e5ae50.html
>
> the link is 48h accessible
>
>
>
> when I load the vti into paraview everything is visualized correctly
>
>
>
> *Von:* Paraview-developers [mailto:paraview-developers-
> bounces at paraview.org] *Im Auftrag von *Lodron, Gerald
> *Gesendet:* Mittwoch, 11. Jänner 2017 12:07
>
> *An:* Joachim Pouderoux
> *Cc:* Paraview Developer (Paraview-developers at paraview.org); Paraview
> User (paraview at paraview.org)
> *Betreff:* Re: [Paraview-developers] [Paraview] vtkImageData Plugin,
> vtkImageData not rendered
>
>
>
> Sorry for my late reply:
>
>
>
> “21745593” is correct, that’s the UID string of the sensor/camera which
> generates the vtkImagedata, I set the string from its SDK…. I will try
> writing the vti file for you….
>
>
>
>
>
>
>
> *Von:* Joachim Pouderoux [mailto:joachim.pouderoux at kitware.com
> <joachim.pouderoux at kitware.com>]
> *Gesendet:* Dienstag, 10. Jänner 2017 19:09
> *An:* Lodron, Gerald
> *Cc:* Paraview Developer (Paraview-developers at paraview.org); Paraview
> User (paraview at paraview.org)
> *Betreff:* Re: [Paraview-developers] [Paraview] vtkImageData Plugin,
> vtkImageData not rendered
>
>
>
> Hmm sorry if I had took a closer look I would have seen that
> AllocateScalars set a default name "ImageScalars" to the scalar array.
>
> Then don't know what you did but the print says that the name of your
> array is "21745593" which is quite strange. Is it what you did?
>
> Could you write your "output" image data to a .VTI file using a
> vtkXMLImageDataWriter after initializing it in your RequestData
>
> function and see if you can load in with PV and view it? Share it if you
> can't.
>
> Best,
>
>
> *Joachim Pouderoux*, PhD
>
> *Technical Expert - Scientific Computing Team*
> *Kitware SAS <http://www.kitware.fr>*
>
>
>
> 2017-01-10 2:00 GMT-04:00 Lodron, Gerald <Gerald.Lodron at joanneum.at>:
>
> Here i printed my vtkImageDataOutput of my plugin in  Request data, may
> that helps…:
>
>
>
> output vtkImageData (00000087ABEB1260)
>
> Debug: Off
>
> Modified Time: 870183
>
> Reference Count: 1
>
> Registered Events: (none)
>
> Information: 00000087AC049A90
>
> Data Released: False
>
> Global Release Data: Off
>
> UpdateTime: 195896
>
> Field Data:
>
> Debug: Off
>
> Modified Time: 870094
>
> Reference Count: 1
>
> Registered Events: (none)
>
> Number Of Arrays: 0
>
> Number Of Components: 0
>
> Number Of Tuples: 0
>
> Number Of Points: 1920000
>
> Number Of Cells: 1917201
>
> Cell Data:
>
> Debug: Off
>
> Modified Time: 870179
>
> Reference Count: 1
>
> Registered Events:
>
> Registered Observers:
>
> vtkObserver (00000087ABC476A0)
>
> Event: 33
>
> EventName: ModifiedEvent
>
> Command: 00000087AC0495E0
>
> Priority: 0
>
> Tag: 1
>
> Number Of Arrays: 0
>
> Number Of Components: 0
>
> Number Of Tuples: 0
>
> Copy Tuple Flags: ( 1 1 1 1 1 0 1 1 )
>
> Interpolate Flags: ( 1 1 1 1 1 0 0 1 )
>
> Pass Through Flags: ( 1 1 1 1 1 1 1 1 )
>
> Scalars: (none)
>
> Vectors: (none)
>
> Normals: (none)
>
> TCoords: (none)
>
> Tensors: (none)
>
> GlobalIds: (none)
>
> PedigreeIds: (none)
>
> EdgeFlag: (none)
>
> Point Data:
>
> Debug: Off
>
> Modified Time: 870183
>
> Reference Count: 1
>
> Registered Events:
>
> Registered Observers:
>
> vtkObserver (00000087ABC475B0)
>
> Event: 33
>
> EventName: ModifiedEvent
>
> Command: 00000087AC0495E0
>
> Priority: 0
>
> Tag: 1
>
> Number Of Arrays: 1
>
> Array 0 name = 21745593
>
> Number Of Components: 1
>
> Number Of Tuples: 1920000
>
> Copy Tuple Flags: ( 1 1 1 1 1 0 1 1 )
>
> Interpolate Flags: ( 1 1 1 1 1 0 0 1 )
>
> Pass Through Flags: ( 1 1 1 1 1 1 1 1 )
>
> Scalars:
>
> Debug: Off
>
> Modified Time: 870148
>
> Reference Count: 2
>
> Registered Events: (none)
>
> Name: 21745593
>
> Data type: unsigned char
>
> Size: 1920000
>
> MaxId: 1919999
>
> NumberOfComponents: 1
>
> Information: 0000000000000000
>
> Name: 21745593
>
> Number Of Components: 1
>
> Number Of Tuples: 1920000
>
> Size: 1920000
>
> MaxId: 1919999
>
> LookupTable: (none)
>
> Vectors: (none)
>
> Normals: (none)
>
> TCoords: (none)
>
> Tensors: (none)
>
> GlobalIds: (none)
>
> PedigreeIds: (none)
>
> EdgeFlag: (none)
>
> Bounds:
>
> Xmin,Xmax: (0, 1599)
>
> Ymin,Ymax: (0, 1199)
>
> Zmin,Zmax: (0, 0)
>
> Compute Time: 870184
>
> Spacing: (1, 1, 1)
>
> Origin: (0, 0, 0)
>
> Dimensions: (1600, 1200, 1)
>
> Increments: (0, 0, 0)
>
> Extent: (0, 1599, 0, 1199, 0, 0)
>
>
>
>
>
>
>
>
>
>
>
>
>
> *Von:* Paraview-developers [mailto:paraview-developers-
> bounces at paraview.org] *Im Auftrag von *Lodron, Gerald
> *Gesendet:* Dienstag, 10. Jänner 2017 06:49
> *An:* Joachim Pouderoux
> *Cc:* Paraview Developer (Paraview-developers at paraview.org); Paraview
> User (paraview at paraview.org)
> *Betreff:* Re: [Paraview-developers] [Paraview] vtkImageData Plugin,
> vtkImageData not rendered
>
>
>
> Hi
>
>
>
> Good try but does not effect anything except the string in paraview’s
> combo box. The strange thing is that I also cannot see anything in
> spreadsheet view (empty cell and point data)… but on information tab point
> data and cell data is there….
>
>
>
> *Von:* Joachim Pouderoux [mailto:joachim.pouderoux at kitware.com
> <joachim.pouderoux at kitware.com>]
> *Gesendet:* Montag, 09. Jänner 2017 19:40
> *An:* Lodron, Gerald
> *Cc:* Paraview User (paraview at paraview.org); Paraview Developer (
> Paraview-developers at paraview.org)
> *Betreff:* Re: [Paraview] vtkImageData Plugin, vtkImageData not rendered
>
>
>
> Hi Gerald,
>
> Not sure it is the only issue but please try giving a name to the output
> scalar arrays.
>
> ParaView won't make visible arrays which don't have a name.
>
> Example:
>
>   output->GetPointData()->GetScalars()->SetName("values");
>
> Best,
>
>
> *Joachim Pouderoux*, PhD
>
> *Technical Expert - Scientific Computing Team*
> *Kitware SAS <http://www.kitware.fr>*
>
>
>
> 2017-01-09 5:20 GMT-04:00 Lodron, Gerald <Gerald.Lodron at joanneum.at>:
>
> Hi
>
> I programmed successfully a plugin source wich generates a vtkImageData
> output and made it the same way as on my 3d cloud plugins of vtkPolyData.
> The source is inherited from vtkImageAlgorithm and only contains one output
> with unsigned char array and one component.
>
> In the request data function of the filter I currently have a very dummy:
>
> output->SetDimensions(oData.imgSizeX, oData.imgSizeY, 1);
> output ->AllocateScalars(VTK_UNSIGNED_CHAR, 1);
>  memcpy(output ->GetScalarPointer(), &oData.imgData[0], oData.imgSizeX*
> oData.imgSizeY*sizeof(unsigned char));
>
> in paraview I see in the information tab that  I have an uniform
> rectilinear grid with 1917201 cells and 1920000 points (image is
> 1600*1200px). In data Arrays I get an "ImageScalars" of unsigned char and a
> correct range of my memcopy data (my min max range is not 0,255 so data
> seems to be there)...
>
> the problem is that I cannot see anything in the render view, any
> suggestions what I am making wrong? I tested all representation (slice,
> surface, outline, on Solid Color and on my array), never see anything.....
>
> I also compared the Information tab on a loaded jpeg image and cannot see
> any difference (which is rendered in render view except the Array's string
> name), by the way: can I disable "MapScalars" by default?
>
> I am using pv5.2
>
> ------------------------------------------------------------
> ------------------------
> Gerald Lodron
>
> Researcher of Machine Vision Applications Group
> DIGITAL - Institute for Information and Communication Technologies
>
> JOANNEUM RESEARCH Forschungsgesellschaft mbH
> Steyrergasse 17, 8010 Graz, AUSTRIA
>
> phone:   +43-316-876-1751 <+43%20316%208761751>
> general fax: +43-316-876-1751 <+43%20316%208761751>
> web: http://www.joanneum.at/digital
> e-mail: gerald.lodron at joanneum.at
>
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