| More rendering bugs [message #75830] |
Thu, 28 April 2011 12:28 |
penteado
Messages: 866
Registered: February 2018
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Senior Member
Administrator |
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In addition to those I mentioned previously,
http://groups.google.com/group/comp.lang.idl-pvwave/browse_t hread/thread/45b1a4509304f400#
http://groups.google.com/group/comp.lang.idl-pvwave/browse_t hread/thread/848810d6b74346a0#
I now found some more bugs with rendering of object graphics. This is
using 8.1 under Linux 64 (Fedora 12):
1) Hardware rendering seems to always make lines solid. A copywindow()
call, which I guess does a rerendering by software, does not have this
problem.
2) Legend boxes get drawn correctly under hardware rendering, png and
ps, but not for pdf.
This simple example shows both problems:
p=plot(/test,linestyle='dashed',name='some plot title')
l=legend(target=p)
p.save,'test_render_bug.png',resolution=100
p.save,'test_render_bug.pdf'
write_jpeg,'test_render_bug.jpeg',p.copywindow(),true=1
The outputs I get here, along with a screen capture of the plot
window, are at
http://www.ppenteado.net/idl/test_render_bug_capture.png
http://www.ppenteado.net/idl/test_render_bug.png
http://www.ppenteado.net/idl/test_render_bug.pdf
http://www.ppenteado.net/idl/test_render_bug.jpeg
And, while not strictly a bug, software rendering (which only works on
the command line, as mentioned above) is horribly slow. With 2 lines
of ~50k points each, it takes minutes to plot these lines (or do any
changes to the visualization), while it takes no noticeable time in
hardware.
This combination of bugs is very upsetting to work with: Software
rendering does not work at all in the Workbench, and takes forever in
the command line. Hardware rendering makes some of the output wrong,
and pdf makes some other part wrong.
Is anybody working on fixing those?
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