Debug plotting issues: Difference between revisions
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* A user had problems printing with fltk in windows. After he updated the graphic drivers the problem was gone. http://octave.1599824.n4.nabble.com/Problem-with-Print-under-Octave-3-8-1-under-windows-tp4664755.html | * A user had problems printing with fltk in windows. After he updated the graphic drivers the problem was gone. http://octave.1599824.n4.nabble.com/Problem-with-Print-under-Octave-3-8-1-under-windows-tp4664755.html | ||
== Test script == | |||
{{Code|FLTK printing test script|<syntaxhighlight lang="octave" style="font-size:13px"> | |||
close all | |||
graphics_toolkit fltk | |||
h = plot ([0, 0.5, 1], [0, 0.5, 1], '-sb'); | |||
set (h, 'markerfacecolor', 'b', 'markersize', 20, 'linewidth', 4) | |||
hold all | |||
h = plot ([1, 0.5, 0], [0, 0.5, 1], '-or'); | |||
set (h, 'markerfacecolor', 'r', 'markersize', 20, 'linewidth', 4) | |||
set (gca (), 'color', 'c') | |||
title ('Cyan background, black axes. A red line with circle markers above a blue line with square markers.') | |||
print -depsc junk1.eps | |||
# Bug 35648, is this a representive test for this? What is the desired output? | |||
close all | |||
hp = patch([1 1 2 2],[1 2 2 1], [1 0.8 1]); | |||
grid on; | |||
set(gca,'layer','bottom'); | |||
title ('Please describe what we should see') | |||
print -depsc junk2.eps | |||
}} | |||
Revision as of 09:11, 25 July 2014
THIS PAGE IS A STUB
This page should help with debugging plotting and printing issues and to collect important information which should be included into bugreports or when asking on the mailinglist.
Basics
- Octave version: Execute 'ver' in Octave and copy the first 5 lines verbatim. If you are on Windows please mention which build (MinGW, Cygwin, MXE, Visual Studio see http://wiki.octave.org/Octave_for_Microsoft_Windows) and where you got it (download from http://sourceforge.net/, http://mxeoctave.osuv.de/ or have you build it yourself?).
- Operating system:
- Windows: Is it XP 32bit or 64bit? Windows 7 or 8?
- GNU/Linux: Have you installed Octave using your package system (apt-get, yum..) or compiled from source tarball?
- If you get a warning on startup, for example "warning: function xyz.m shadows a built-in function" please copy it verbatim
- If you get an error message, please copy the message verbatim
I can't plot or print or the output doesn't look as expected
Please create a simple, as small as possible example which shows the problem so others can reproduce the problem on their system and help you. Upload a screenshot (together with the script) if you can't describe it with words.
- Sometimes the figure on the screen visually differs from the file generated with "print". If this is the case please mention this and consider adding a screenshot of the figure window together with the generated print.
- Which toolkit are you using? Execute 'graphics_toolkit' in octave to query it. Common toolkits are 'fltk' or 'gnuplot'. Consider switching to another available toolkit (see available_graphics_toolkits) and try it there. You have to execute (for example switch to gnuplot) 'graphics_toolkit gnuplot' before any plotting command.
- Which Ghostscript version? Is it a 32 or 64bit build? Please add URL to download. If 64bit under Windows see http://wiki.octave.org/Octave_for_Microsoft_Windows#Printing_.28installing_Ghostscript.29
printing with gnuplot
Try
print("testplot.eps", "-debug")
and attach the generated octave-print-commands.log, debug message and testplot.eps.
printing with fltk
A common problem is that printing with fltk only works if the figure is visible, see [1]
some Windows issues
- A user had problems printing with fltk in windows. After he updated the graphic drivers the problem was gone. http://octave.1599824.n4.nabble.com/Problem-with-Print-under-Octave-3-8-1-under-windows-tp4664755.html
Test script
| Code: FLTK printing test script |
|
{{{2}}} |