[Paraview] png overlay on a sphere

Thu Jun 6 13:45:08 EDT 2013

Ken,

Yes, I'm using the texture mapping.  That's good news--thank you so much!

Karen

Message: 1
Date: Thu, 6 Jun 2013 01:09:21 +0000
From: "Moreland, Kenneth" <kmorel at sandia.gov>
Subject: Re: [Paraview] [EXTERNAL]  Paraview questions
To: "Karen Wilk" <kaw at rincon.com>
Cc: "paraview-owner at paraview.org" <paraview-owner at paraview.org>,
	"paraview at paraview.org" <paraview at paraview.org>
Message-ID: <97EB3705-F80B-4F91-91D0-1996BFE62940 at sandia.gov>
Content-Type: text/plain; charset="windows-1252"

If using texture mapping, a display property, to show the image, you should not need the make the sphere anywhere near the resolution of the image. The rendering process will interpolate values in between sphere vertices to make the results indistinguishable.

-Ken

Sent from my iPad so blame autocorrect.

On Jun 5, 2013, at 4:49 PM, "Karen Wilk" <kaw at rincon.com<mailto:kaw at rincon.com>> wrote:

<image001.jpg>
Hello,

I am receiving the paraview digests but do not know how to post questions.

I would like to overlay ?png? files on a sphere simulating the earth.  The data is sampled every tenth of a degree in lat and lon.  I need to make sure it is correctly mapped onto the sphere so that the lat/lon or ecr coordinates line up.

I see that the phi and theta resolutions max out at 1024.

Is there a way to map my data correctly?

Thank you,
Karen Wilk

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Message: 2
Date: Thu, 6 Jun 2013 12:31:55 +0900
From: Pradeep Jha <pradeep at ccs.engg.nagoya-u.ac.jp>
Subject: Re: [Paraview] Viewing a slice as a 2D object
To: Burlen Loring <bloring at lbl.gov>
Cc: "paraview at paraview.org" <paraview at paraview.org>
Message-ID:
	<CAL_eiiQar+bHUDKHRe+fanmC=y1B5LxnKXDjKLwEqMUiOJFy3A at mail.gmail.com>
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Yes,  I was getting that something like that. Even if I have a 2D slice, still I am visualizing/analyzing the figure in a 3D format. Is it possible to just treat it as a 2D object (get rid of all the 3D objects around).
 Even when I snap the camera to the plane's normal, to get the value of a point on the slice I need to specify (x,y,z). Ideally, I want to probe into the contour values, use tools like "Probe" and "Ruler" on the slice just by specifying the coordinates (x,y) and not (x,y,z).

2013/6/6 Burlen Loring <bloring at lbl.gov>

>  I'm not sure what you're going for here...a slice is a 2d plane... 
> can you give some more detail about what you'd like to accomplish? do 
> you mean snap the camera to the plane's normal?
>
>
> On 06/05/2013 09:31 AM, Pradeep Jha wrote:
>
> ok, I will try that. But is there no way to look at/analyze a slice as 
> a 2D plane ?
>
>
> 2013/6/6 Burlen Loring <bloring at lbl.gov>
>
>>  Hi,
>>
>> the first thing that comes to mind is the spreadsheet view which lets 
>> you look at numerical values of the data. You can use it in 
>> combination with selection to interactively, using the mouse, 
>> identify the subset of cells/point you are interested in, all without knowing exact coordinates.
>> http://paraview.org/Wiki/Data_Selection
>>
>> Does that help?
>>
>> Burlen
>>
>>
>> On 06/05/2013 01:11 AM, Pradeep Jha wrote:
>>
>>  Hello,
>>
>>  when I extract a slice from a 3D data, how can I look at the slice 
>> as a 2D plane/object? That is to say, how can I do things like 
>> probing, finding the variable value at different points on the slice 
>> without giving its 3D coordinates, because its not convenient to find 
>> out the exact 3D coordinates of points on the slice.
>>
>>  Thank you
>>
>>
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>>
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