You may use the bbox attribute of the axes. For example, ax.bbox.extents gives you the x,y coordinates of the lowerleft and topright corners.
-JJ On Wed, Apr 29, 2009 at 4:06 PM, Mark Larsen <larsen...@gmail.com> wrote: > It's been a while, please allow me to bump this... > >> Sorry. I use matplotlib to create PNGs graphics for display on a >> web-page. I want to make the plots zoom-able. I'll use javascript to >> capture the pixel positions of the user's selected zoom region on the >> PNG plot. I'll then translate this into the coordinate system on the >> plot and redraw it with a new x, y range. I'm having trouble >> translating the initial axises into the pixel positions (essentially >> where they are on the PNG image). >> >> For example, I use the following code to map point positions from the >> coordinate system to pixel positions. I use an img map <MAP> to >> provide interaction with the actual lines. >> >> [CODE] >> >> lineObj = plt.plot(Xs,Ys,marker='o')[0] >> path, affine = lineObj._transformed_path.get_transformed_points_and_affine() >> path = affine.transform_path(path) >> for real,pixel in zip(lineObj.get_xydata(),path.vertices): >> ## write <AREA> tag for each point >> >> [/CODE] >> >> I'd like to get information similar to this for the axis of the plot. >> >> Thanks. >> > > ------------------------------------------------------------------------------ > Register Now & Save for Velocity, the Web Performance & Operations > Conference from O'Reilly Media. Velocity features a full day of > expert-led, hands-on workshops and two days of sessions from industry > leaders in dedicated Performance & Operations tracks. Use code vel09scf > and Save an extra 15% before 5/3. http://p.sf.net/sfu/velocityconf > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > ------------------------------------------------------------------------------ Register Now & Save for Velocity, the Web Performance & Operations Conference from O'Reilly Media. Velocity features a full day of expert-led, hands-on workshops and two days of sessions from industry leaders in dedicated Performance & Operations tracks. Use code vel09scf and Save an extra 15% before 5/3. http://p.sf.net/sfu/velocityconf _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
