different PNG and PDF output...

Community matplotlib-users
1

Hi,

with the new version of matplotlib, the legend looks different in png and
pdf!

I could post examples, but you can look in the galery also:
http://matplotlib.sourceforge.net/gallery.html

for example the legend_demo3
http://matplotlib.sourceforge.net/examples/pylab_examples/legend_demo3.html
* PNG:
http://matplotlib.sourceforge.net/_static/plot_directive/mpl_examples/pylab_examples/legend_demo3.hires.png
* PDF:
http://matplotlib.sourceforge.net/_static/plot_directive/mpl_examples/pylab_examples/legend_demo3.pdf

You see in the png the lines are short and not vertically centered, padding
between axes an legend text are ignored .. and so on

···

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2

This looks like a dpi issue -- that is the only difference between the regular and hi-res png. Jae-Joon -- do you have any thoughts? Perhaps something is dpi-dependent in the new legend code where it shouldn't be?

Mike

Lebostein wrote:

···

Hi,

with the new version of matplotlib, the legend looks different in png and
pdf!

I could post examples, but you can look in the galery also:
http://matplotlib.sourceforge.net/gallery.html

for example the legend_demo3
http://matplotlib.sourceforge.net/examples/pylab_examples/legend_demo3.html
* PNG:
http://matplotlib.sourceforge.net/_static/plot_directive/mpl_examples/pylab_examples/legend_demo3.hires.png
* PDF:
http://matplotlib.sourceforge.net/_static/plot_directive/mpl_examples/pylab_examples/legend_demo3.pdf

You see in the png the lines are short and not vertically centered, padding
between axes an legend text are ignored .. and so on
  
--
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

3

I also observed this with eps output. The png looked fine, but the eps legend
was very large in my case.

j

Lebostein wrote:

···

Hi,

with the new version of matplotlib, the legend looks different in png and
pdf!

I could post examples, but you can look in the galery also:
http://matplotlib.sourceforge.net/gallery.html

for example the legend_demo3
http://matplotlib.sourceforge.net/examples/pylab_examples/legend_demo3.html
* PNG:
http://matplotlib.sourceforge.net/_static/plot_directive/mpl_examples/pylab_examples/legend_demo3.hires.png
* PDF:
http://matplotlib.sourceforge.net/_static/plot_directive/mpl_examples/pylab_examples/legend_demo3.pdf

You see in the png the lines are short and not vertically centered,
padding between axes an legend text are ignored .. and so on

--
View this message in context: http://www.nabble.com/different-PNG-and-PDF-output…-tp21028686p21037465.html
Sent from the matplotlib - users mailing list archive at Nabble.com.

4

Hmm, it is not clear to me if this is a same issue. I think eps output
is not very sensitive to dpi thing in matplotlib.

I tried a few tests but couldn't see any obvious problems.
If my patch does not fix your problem, please report some more details.

Regards,

-JJ

···

On Tue, Dec 16, 2008 at 12:17 PM, jkitchin <jkitchin@...1648...> wrote:

I also observed this with eps output. The png looked fine, but the eps legend
was very large in my case.

j

5

OK, now it works! Thank you!

A little thing: the shadow of the legend box is not scaling with the dpi.
For example with 300 dpi I can't discover the shadow...

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6

This also should be fixed in the maintenance branch and the trunk.
Thanks for reporting.

-JJ

···

On Sat, Dec 20, 2008 at 6:02 PM, Lebostein <Lebostein@...380...> wrote:

A little thing: the shadow of the legend box is not scaling with the dpi.
For example with 300 dpi I can't discover the shadow...