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Eric Firing wrote:
> Jordan,
>
> Would you send a simple example script and sample plot, please? If I 
> understand correctly what you are trying to do, it should work.
Ok, I stuck an example on my webserver. The script (heavily copied from 
contour_demo.py):
http://freedryk.dyndns.org:8080/matplotlib/example.py
The eps output:
http://freedryk.dyndns.org:8080/matplotlib/example.eps
And, in case it's easier for you, the eps output converted into pdf:
http://freedryk.dyndns.org:8080/matplotlib/example.pdf
The problem can be seen by zooming into one of the contour lines. There 
is about a .25 pica space between the contour lines and the filled 
contours. This doesn't occur if you use a 1 pica line, but I don't like 
thick lines...
Jordan

Jordan,
Would you send a simple example script and sample plot, please? If I 
understand correctly what you are trying to do, it should work.
Thanks.
Eric
Jordan Dawe wrote:
> Hi, I hope this is the proper place to send this message. I'm using 
> matplotlib to make contourf plots with contour overlays. My problem is 
> that I want to be able to use .25 pica lines for the overlaid contours, 
> but since contourf demands a linethickness of 1. to avoid artifacts (due 
> to the simply-connected domain contour algorhithm), the .25 contours 
> don't actually fit the contourf right; there will be a thin line of 
> color from the next contour around the contourf before the .25 pica line 
> appears. This annoys me to no end.
> 
> Currently I'm fixing it by plotting everything 4x larger than normal and 
> then shrinking the eps files down in Illustrator, but this is not an 
> ideal solution, since (for example) all the axis labels are in the wrong 
> position at this size. My question is, how hard would it be to fix the 
> contour code so that contourf's linethickness argument could be 
> changed? Where in the codebase would I look to start hacking? In the 
> contouring code? In the python code that accepts the contour algorithm 
> output? I don't want to spend hours hunting through the code for the 
> right place to start modifying things...
> 
> Jordan
> 
> 
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Hi, I hope this is the proper place to send this message. I'm using 
matplotlib to make contourf plots with contour overlays. My problem is 
that I want to be able to use .25 pica lines for the overlaid contours, 
but since contourf demands a linethickness of 1. to avoid artifacts (due 
to the simply-connected domain contour algorhithm), the .25 contours 
don't actually fit the contourf right; there will be a thin line of 
color from the next contour around the contourf before the .25 pica line 
appears. This annoys me to no end.
Currently I'm fixing it by plotting everything 4x larger than normal and 
then shrinking the eps files down in Illustrator, but this is not an 
ideal solution, since (for example) all the axis labels are in the wrong 
position at this size. My question is, how hard would it be to fix the 
contour code so that contourf's linethickness argument could be 
changed? Where in the codebase would I look to start hacking? In the 
contouring code? In the python code that accepts the contour algorithm 
output? I don't want to spend hours hunting through the code for the 
right place to start modifying things...
Jordan