Re: [Matplotlib-users] URLs embedded in PNG or JPEG

[John H. <jdh...@ac...>]

>>>>> "Julius" == Julius Lucks <jul...@gm...> writes:

    Julius> my question is what transform do I use to convert verts to
    Julius> pixel coordinates?  ax.get_transform() does not work.
    Julius> Should I use pl.get_transform?

"Does not work" is not very descriptive :-(

Yes, you should use the polygon transform

You might want to look at the "draw" method of the
matplotlib.patches.Polygon class to see how it gets the data into
pixel coords

        verts = self.get_verts()
        tverts = self._transform.seq_xy_tups(verts)

Thus all you need to do outside the class is 

  trans = pl.get_transform()
  verts = pl.get_verts()
  tverts = trans.seq_xy_tups(verts)
 
Should work...

The documentation for the matplotlib.transforms module is decent, if
you want to take a look

  http://matplotlib.sourceforge.net/matplotlib.transforms.html

JDH