On Mon, Nov 16, 2009 at 4:12 AM, Jason Heeris <jason.hee...@gmail.com> wrote: > Hi, > > I'd like to know if it's possible to do something like this in matplotlib: > > I want to create a 2D plot with legend, output as PNG. I also want to > embed a logo in it, in the top right corner of the plotting area. If > the original logo image is a 40px by 40px PNG, I want it to appear at > that size exactly as it is in the original logo. > > Even if I can't do this directly, I might be able to fudge it if > matplotlib tells me the exact (pixel) dimensions of the plot area — > then I could scale and offset the secondary axes, convert the logo PNG > to RGB values and plot that (or use Python to invoke an imagemagick > subprocess and pass it those numbers... anything, really). > > Is it possible to get this info from matplotlib, or is there a better > way to do this?
See http://matplotlib.sourceforge.net/examples/api/watermark_image.html for an example of embedding a watermark image in mpl. To compute figure size, multiply the DPI setting by the figure dimensions in inches: dpi = 100 # dpi, whatever value you want width, height = 6,4 # in inches, whatever values you want fig = plt.figure(figsize=(width, height), dpi=dpi) pixelw = dpi * width # pixel width of figure pixelh = dpi * height # pixel height of figure # now watermark you figure as in the example linked above, passing the pixel coords of the lower left corner of the image to figimage # this last piece is important: pass dpi to savefig too since mpl supports different dpi for display and hardcopy fig.savefig(myfile, dpi=dpi) JDH ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
