Are you perhaps trying to plot data containing NaN or Inf? If so, this is a known bug in 0.98.3 that has seen been corrected on SVN trunk.
A workaround is to pass masked arrays (where the NaNs and Infs are masked out) to matplotlib instead. But this bug should be gone in the next release of matplotlib. If you're comfortable building from SVN, you could even try that now. Cheers, Mike Alan wrote: > Dear all, > > I don't know much how to express this issue I am having but I will try. > > We are developing an application (CING: cing.googlecodes.com) and we > have some routines to test the sanity of our code. > > I am developing in python, on a mac book pro with Mac OSX tiger and FINK. > > So when we were using matplotlib 0.90.1 and numpy 1.0.4 the routine > below was running fine. > > Then I updated all from Fink, having now mtplib 0.98.3 and numpy 1.1.1 > and problems started to appear. > > I could solve all (e.g. replace verify_intervals()) but one, as shown below. > > I don't have much idea at moment how to debug it better, but it seems > that I cannot generate the PDFs because mtplib functions don't guess a > finite number of pages. > > I hope someone can give any idea. > > Many thanks in advance. > > Alan > > ====================================================================== > ERROR: testMoleculePlot (cing.Libs.test.test_NTMoleculePlot.AllChecks) > ---------------------------------------------------------------------- > Traceback (most recent call last): > File > "/Users/alan/workspace/cingWork/python/cing/Libs/test/test_NTMoleculePlot.py", > line 178, in testMoleculePlot > createPngCopyToo=True ) > File "/Users/alan/workspace/cingWork/python/cing/Libs/NTmoleculePlot.py", > line 176, in renderMoleculePlotSet > if ps.hardcopy(fileNameList[r-1]): > File "/Users/alan/workspace/cingWork/python/cing/Libs/NTplot.py", > line 1201, in hardcopy > savefig(fileName) > File "/sw/lib/python2.5/site-packages/matplotlib/pyplot.py", line > 342, in savefig > return fig.savefig(*args, **kwargs) > File "/sw/lib/python2.5/site-packages/matplotlib/figure.py", line > 964, in savefig > self.canvas.print_figure(*args, **kwargs) > File "/sw/lib/python2.5/site-packages/matplotlib/backend_bases.py", > line 1310, in print_figure > **kwargs) > File "/sw/lib/python2.5/site-packages/matplotlib/backend_bases.py", > line 1204, in print_pdf > return pdf.print_pdf(*args, **kwargs) > File "/sw/lib/python2.5/site-packages/matplotlib/backends/backend_pdf.py", > line 1864, in print_pdf > self.figure.draw(renderer) > File "/sw/lib/python2.5/site-packages/matplotlib/figure.py", line 759, in > draw > for a in self.axes: a.draw(renderer) > File "/sw/lib/python2.5/site-packages/matplotlib/axes.py", line 1523, in > draw > a.draw(renderer) > File "/sw/lib/python2.5/site-packages/matplotlib/lines.py", line 437, in > draw > markerFunc(renderer, gc, tpath, affine.frozen()) > File "/sw/lib/python2.5/site-packages/matplotlib/lines.py", line > 885, in _draw_plus > path, path_trans) > File "/sw/lib/python2.5/site-packages/matplotlib/backends/backend_pdf.py", > line 1253, in draw_markers > marker, Op.use_xobject) > File "/sw/lib/python2.5/site-packages/matplotlib/backends/backend_pdf.py", > line 451, in output > self.write(fill(map(pdfRepr, data))) > File "/sw/lib/python2.5/site-packages/matplotlib/backends/backend_pdf.py", > line 124, in pdfRepr > raise ValueError, "Can only output finite numbers in PDF" > ValueError: Can only output finite numbers in PDF > > ---------------------------------------------------------------------- > -- Michael Droettboom Science Software Branch Operations and Engineering Division Space Telescope Science Institute Operated by AURA for NASA ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
