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[Octave-bug-tracker] [bug #44736] OpenGL / gl2ps printing alters or drop
From: |
Dan Sebald |
Subject: |
[Octave-bug-tracker] [bug #44736] OpenGL / gl2ps printing alters or drops axis outline |
Date: |
Sun, 05 Apr 2015 17:35:02 +0000 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:18.0) Gecko/20100101 Firefox/18.0 SeaMonkey/2.15 |
URL:
<http://savannah.gnu.org/bugs/?44736>
Summary: OpenGL / gl2ps printing alters or drops axis outline
Project: GNU Octave
Submitted by: sebald
Submitted on: Sun 05 Apr 2015 05:35:01 PM GMT
Category: Plotting with OpenGL
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: Incorrect Result
Status: None
Assigned to: None
Originator Name:
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Release: dev
Operating System: GNU/Linux
_______________________________________________________
Details:
For this demo using the command "patch":
graphics_toolkit qt
demo ("patch", 4)
the outline of the axis appears fine when displayed in OpenGL. However, the
following gl2ps print:
print test.ps
(viewable in "gv test.ps") produces an image in which the right and top
outlines of the axes is very light grey, not black.
Converting that PostScript file to PDF via:
print test.pdf
(viewable in "acroread test.pdf" or "xpdf test.pdf") shows no right or top
outline at all, not even grey.
In the PostScript file are the following elements
1 1 1 RG
1 1 1 rg
5392.8 5806 m
5392.8 2285.2 l
f
5392.8 5806 m
928.801 5806 l
f
which, if removed, correct the black outline of the axes.
Where did these come from? Are they supposed to be a white fill of the axis
line (which makes no sense)? Both of these elements have zero width. Could
it be that there is no fill, but the tessellation line issues described here:
https://savannah.gnu.org/bugs/?44181
is still drawing a grey line around what is a zero width fill?
Perhaps the ps2pdf routine is programmed to toss out elements of zero width
and so doesn't draw the the grey tessellation lines, as does "gv test.ps".
_______________________________________________________
Reply to this item at:
<http://savannah.gnu.org/bugs/?44736>
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- [Octave-bug-tracker] [bug #44736] OpenGL / gl2ps printing alters or drops axis outline,
Dan Sebald <=
- [Octave-bug-tracker] [bug #44736] OpenGL / gl2ps printing alters or drops axis outline, Rik, 2015/04/06
- [Octave-bug-tracker] [bug #44736] OpenGL / gl2ps printing alters or drops axis outline, Rik, 2015/04/06
- [Octave-bug-tracker] [bug #44736] OpenGL / gl2ps printing alters or drops axis outline, Dan Sebald, 2015/04/06
- [Octave-bug-tracker] [bug #44736] OpenGL / gl2ps printing alters or drops axis outline, Rik, 2015/04/06
- [Octave-bug-tracker] [bug #44736] OpenGL / gl2ps printing alters or drops axis outline, Dan Sebald, 2015/04/06
- [Octave-bug-tracker] [bug #44736] OpenGL / gl2ps printing alters or drops axis outline, Rik, 2015/04/06
- [Octave-bug-tracker] [bug #44736] OpenGL / gl2ps printing alters or drops axis outline, Dan Sebald, 2015/04/06
- [Octave-bug-tracker] [bug #44736] OpenGL / gl2ps printing alters or drops axis outline, Dan Sebald, 2015/04/06
- [Octave-bug-tracker] [bug #44736] OpenGL / gl2ps printing alters or drops axis outline, Rik, 2015/04/06
- [Octave-bug-tracker] [bug #44736] OpenGL / gl2ps printing alters or drops axis outline, Dan Sebald, 2015/04/06