Dear Utkarsh,

Needing the same thing as Willi, I've created a paraview plugin written in C++ doing basically the same as Your script. Would it be possible to achieve something like vtkFollower does from within a c++ PV plugin such that the text always faces the camera? An other idea would be to use Python in the animation view to rotate the text as the camera orbits. This would be a workaround only for animations, which would suffice for me. Do You thing that should be possible if nothing else works?

Many thanks for looking into this.
Roman

On 26/09/13 19:52, Utkarsh Ayachit wrote:
Alas, that's not easy to do, if at all possible, with Python source.


On Thu, Sep 26, 2013 at 5:48 AM, Willi Karel <w...@ipf.tuwien.ac.at
<mailto:w...@ipf.tuwien.ac.at>> wrote:

    Dear Utkarsh,

    would it be possible to synchronize the transform of the rendered texts
    to the transform of the camera, such that the planes in which the texts
    lie stay normal to the viewing direction?
    I'm aware of vtkFollower, but I'm not sure if it is applicable / how to
    make use of it in the context of ParaView / Programmable Source, as it
    derives from vtkActor.

    Many thanks!
    Willi.

    On 25.09.2013 22 <tel:25.09.2013%2022>:50, Willi Karel wrote:
     > Dear Utkarsh,
     > that works nice, thanks a lot!
     > Willi.
     >
     > On 25.09.2013 15 <tel:25.09.2013%2015>:25, Utkarsh Ayachit wrote:
     >> Willi,
     >>
     >> You can still use the programmable source for 3D text. With
     >> "vtkPolyData" as the chosen Output DataSet Type, you can use the
     >> attached script as the "Script".
     >>
     >>
     >>
     >>
     >>
     >>
     >>
     >>
     >>
     >> On Wed, Sep 25, 2013 at 6:11 AM, Willi Karel <w...@ipf.tuwien.ac.at
    <mailto:w...@ipf.tuwien.ac.at>
     >> <mailto:w...@ipf.tuwien.ac.at <mailto:w...@ipf.tuwien.ac.at>>> wrote:
     >>
     >>     I'd like to insert various text strings programmatically into the 
scene
     >>     at various 3D locations in world coordinates. To me, (Python)
     >>     "Programmable Source" seems to be the appropriate tool for that 
purpose
     >>     (which I successfully use to insert geometries into the scene). Is 
that
     >>     possible using "Programmable Source"? Otherwise, is there any other
     >>     method to do so?
     >>
     >>     I am aware of Sources -> 3D Text,
     >>     but that means a lot of manual, repetitive work.
     >>
     >>     Many thanks!
     >>     Willi.
     >>     --
     >>                             _____ _____ _____  Technische Universität 
Wien
     >>        DI Wilfried Karel   /____// ___//    / Dept. of Geodesy & 
Geoinform.
     >>       wilfried.karel@     // __ / /__ / // / Research Groups 
Photogrammetry
     >> geo.tuwien.ac.at <http://geo.tuwien.ac.at> <http://geo.tuwien.ac.at>
      //__/// /__ / // /
     >>     & Remote Sensing
     >> +43 1 58801 12244 <tel:%2B43%201%2058801%2012244>
    <tel:%2B43%201%2058801%2012244>
     >>      /____//____//____/ Gusshausstr. 27-29, A-1040 Wien
     >>     _______________________________________________
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     >

    --
                             _____ _____ _____  Technische Universität Wien
        DI Wilfried Karel   /____// ___//    / Dept. of Geodesy & Geoinform.
       wilfried.karel@     // __ / /__ / // / Research Groups Photogrammetry
    geo.tuwien.ac.at <http://geo.tuwien.ac.at>    //__/// /__ / // /   & Remote
    Sensing
    +43 1 58801 12244 <tel:%2B43%201%2058801%2012244>   /____//____//____/
    Gusshausstr. 27-29, A-1040 Wien




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--
Dr. Roman Grothausmann

Tomographie und Digitale Bildverarbeitung
Tomography and Digital Image Analysis

Institut für Funktionelle und Angewandte Anatomie, OE 4120
Medizinische Hochschule Hannover
Carl-Neuberg-Str. 1
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