>>>>> "Tom" == Tom Denniston <[EMAIL PROTECTED]> writes:
Tom> FigureCanvasAgg seems to make fonts appear much larger that
Tom> FigureCanvasWxAgg. I am trying to get plots generated
Tom> interactively in a wx window to appear the same as those that
Tom> I generate in a no display batch script that outputs .png
Tom> files. I use FigureCanvasWxAgg for the former and
Tom> FigureCanvasAgg for the latter. Is there a reason why the
Tom> same font size would appear much larger in FigureCanvasAgg
Tom> than FigureCanvasWxAgg. Is there another, better, way to
Tom> achieve uniformity accross png outputs and wx on screen
Tom> display?
Tom> It doesn't look like one can use the FigureCanvasAgg for wx
Tom> embedding or the FigureCanvasWxAgg for png generation because
Tom> the former will not accept a parent window and the latter
Tom> requires one.
Tom> If anyone has any ideas I would greatly appreciate
Tom> suggestions.
backend_agg and backend_wxagg both use the same underlying pixel
buffer, so you should be able to get uniformity between them. Note,
matplotlib has a different default dpi setting for figures for display
and saving, and you might want to try forcing them to be the same with
dpi = 72
fig = figure(dpi=dpi)
plot something
fig.savefig(somefile, dpi=dpi)
If that doesn't help, the only other possibility is that the
PIXELS_PER_INCH defaults are getting you screwed up. This was
included for display devices which have a different number of pixels
per inch; see
http://groups.google.com/groups?q=screen+dpi+x11&hl=en&lr=&ie=UTF-8&oe=UTF-8&safe=off&selm=7077.26e81ad5%40swift.cs.tcd.ie&rnum=5
for some info about screen dpi. I vaguely recall that there was some
good reason for including the pixels_per_inch constant *and* dpi,, but
now I suspect the system may be overdetermined and we should drop this
and just use the dpi setting. In any case, each backend defines their
own (see src/_backend_wxagg.cpp and backends/backend_wx.py) and the
defaults are different in backend_agg and backend_wx).
If the dpi suggestion above doesn't work, try setting PIXELS_PER_INCH
in backend_wx.py to 72.
JDH
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