[Paraview] No interpolation of colors possible (table-to-points result)

[Moreland, Kenneth]

The table to structured grid filter only works if your csv file actually represents a 2D or 3D array.  If your points have no implied topology, you can impose one by running the Delaunay 3D filter.

-Ken


On 7/21/10 5:55 PM, "Scott, W Alan" <wascott at sandia.gov> wrote:

Someone else may come up with a better answer, but here goes.

What you are doing is reading in point data, and displaying this point data in 3d space.  You have not created a solid for ParaView to color - just points.

I believe what you want to do is actually create a solid. This can be done using the "table to structured grid filter". Turns out that I had this question from a user earlier today, and wrote up a quick and dirty wiki page on it, located here:  http://www.paraview.org/Wiki/Data_formats

Alan


From: paraview-bounces at paraview.org [mailto:paraview-bounces at paraview.org] On Behalf Of Sven Boese
Sent: Wednesday, July 21, 2010 5:00 PM
To: paraview at paraview.org
Subject: [Paraview] No interpolation of colors possible (table-to-points result)

Hi,

I'm quite new to Paraview and have an urgent problem. I employed the help that was/is available to me - meaning http://paraview.org/OnlineHelpCurrent/ - but couldn't solve the problem until now. Actually, I don't consider my problem to be really complicated, it might well be that the solution is one mouse-click away.

APPROACH
-->  a dataset (CSV-file) of a three dimensional tomography was imported into Paraview
-->  'table to points'-filter was performed, using the x-,y- and z-values (latter are negative) of my dataset (first three columns)
-->  'colour by...': the fourth data column with the resistivity values was chosen
-|-> finally I wanted the colors to be interpolated between the points.


PROBLEM: I can't perform the color interpolation.

In the wiki there's a small picture showing the color section with the option 'color by...'. Above this dropdown-list you can see 'interpolate colors"
being activated.

http://paraview.org/OnlineHelpCurrent/Display.html

In my case, there is no such thing, instead the option ist named 'interpolate scalars'. In addition to that, in my display there's a second (smaller and empty) dropdown-list next to 'color by...' and an option called 'apply texture: none' (grey).


Many thanks in advance if you can help me! (unfortunately I can only answer tomorrow and then not until next monday, 26th July)

Sven Boese
University of Bayreuth
Department of Geology







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