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IDProjectCategoryView StatusDate SubmittedLast Update
0013950ParaView(No Category)public2013-03-20 10:272013-05-22 18:17
ReporterDavid C. Lonie 
Assigned ToDavid C. Lonie 
PrioritynormalSeverityminorReproducibilityhave not tried
PlatformOSOS Version
Product Versiongit-master 
Target VersionFixed in Version 
Summary0013950: Scale line/point size in GL2PS export
DescriptionAllow the GL2PS export feature to scale the line width and point size. This functionality was removed during the GL2PS rewrite, and should be restored and exposed in the GUI.
TagsNo tags attached.
Topic Name13950-gl2ps-size-factors
Typeincorrect functionality
Attached Files

- Relationships Relation Graph ] Dependency Graph ]

-  Notes
David C. Lonie (developer)
2013-03-25 15:49

Readded functionality:

    Restore ability to scale gl2ps linewidth/pointsize.
    The functions:
    static void vtkGL2PSExporter::SetGlobalLineWidthFactor(float);
    static void vtkGL2PSExporter::SetGlobalPointSizeFactor(float);
    were removed during the GL2PS rewrite. This patch restores the
    functionality by adding LineWidthFactor and PointSizeFactor ivars to
    vtkGL2PSExporter and the associated setters:
    void vtkGL2PSExporter::SetLineWidthFactor(float)
    void vtkGL2PSExporter::SetPointSizeFactor(float)
    These attributes are specific to the vtkGL2PSExporter instances, while
    the old implementation stored them in global variables.
    A vtkOpenGLGL2PSHelper is added to RenderingOpenGL that fakes the
    GL2PS function calls needed to update line width, point size, and
    stipple state. The public static methods are called from the rendering
    code when the GL state is changed to inform GL2PS of the change. The
    vtkOpenGLGL2PSHelper class is used to update GL2PS without introducing
    a dependency on vtkgl2ps to vtkRenderingOpenGL.
    The TestContextGL2PS unit test is modified to ensure that 1.0 scaling
    factors are used.
    The vtkGL2PSContextDevice::StippleOn was not used, and is removed in
    this commit.
    Change-Id: Ia367211848f69ffdb093fceeb9baa029435a20d0
Alan Scott (manager)
2013-04-02 18:47

Is this bug fix testable? How do you do it? Thanks - Alan
David C. Lonie (developer)
2013-04-03 08:21

In can be tested in the ParaView GUI by going to

File >> Export Scene

and exporting a PDF/SVG/PS/EPS file. The export dialog that shows up has two new options, one for line width scaling and another for point size scaling. Changing these should affect the exported image.

Alan Scott (manager)
2013-04-30 21:17

I tried what you suggested, and did not see any changes whatsoever with regards to line width. I did as follows:

Linux, Master, remote server.
can.exo. Apply. Wireframe.
Export Scene. Choose name, and .pdf. Change line width to 10 (and also to 0 in another output).

What am I doing wrong?
David C. Lonie (developer)
2013-05-01 09:07

Hi Alan,

I forgot to mention -- disable the "rasterize 3D geometry" option to see the effect. Otherwise it embeds the raw pixel data, rather than exporting the lines as vectors.

Alan Scott (manager)
2013-05-22 18:17

Tested remote server, master, Linux.

- Issue History
Date Modified Username Field Change
2013-03-20 10:27 David C. Lonie New Issue
2013-03-20 10:27 David C. Lonie Assigned To => David C. Lonie
2013-03-25 15:49 David C. Lonie Topic Name => 13950-gl2ps-size-factors
2013-03-25 15:49 David C. Lonie Note Added: 0030477
2013-03-25 15:49 David C. Lonie Status backlog => gatekeeper review
2013-03-25 15:49 David C. Lonie Resolution open => fixed
2013-03-29 13:09 Sebastien Jourdain Status gatekeeper review => customer review
2013-04-02 18:47 Alan Scott Note Added: 0030494
2013-04-03 08:21 David C. Lonie Note Added: 0030506
2013-04-30 21:17 Alan Scott Note Added: 0030662
2013-05-01 09:07 David C. Lonie Note Added: 0030663
2013-05-22 18:17 Alan Scott Note Added: 0030824
2013-05-22 18:17 Alan Scott Status customer review => closed

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