[Octave-bug-tracker] [bug #45104] saveas: filled polygons have visible gaps between triangles

[Oliver Heimlich]

URL:
  <http://savannah.gnu.org/bugs/?45104>

                 Summary: saveas: filled polygons have visible gaps between
triangles
                 Project: GNU Octave
            Submitted by: oheim
            Submitted on: Thu 14 May 2015 05:55:37 PM CEST
                Category: Plotting with OpenGL
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: Oliver Heimlich
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.8.2
        Operating System: Any

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Details:

Reproduction protocol: Use the second fill demo (dark blue and dark red
polyons) and save the figure as either png or pdf.

The image files show transparent lines between the triangles of the polygons.
The lines are very thin, but clearly visible. See attached files.

The on-screen figure does not show these lines.

The problem occurs in either combination of Windows, GNU/Linux, Octave 3.8.2
and Octave 4.0rc4 with both fltk and qt (gnuplot is not affected).

Expected result: No visible lines in the PNG and connected polygon in the PDF.



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File Attachments:


-------------------------------------------------------
Date: Thu 14 May 2015 05:55:37 PM CEST  Name: fill-demo-2.pdf  Size: 3kB   By:
oheim

<http://savannah.gnu.org/bugs/download.php?file_id=34011>
-------------------------------------------------------
Date: Thu 14 May 2015 05:55:37 PM CEST  Name: fill-demo-2.png  Size: 49kB  
By: oheim

<http://savannah.gnu.org/bugs/download.php?file_id=34012>

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