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

[Sven Boese]

  First of, thanks for your quick help!

In fact, the 'table to points' filter was the problem. I was misled by 
the 'interpolate colors' option shown in the help (that I couldn't 
find). I performed the 'table to structured grid' filter with the 
extents filled in correctly (that was the problem when I tried this 
filter on my own) and it delivered the result I expected!

Thanks again,
Sven
> 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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