On Wed, May 28, 2008 at 7:10 AM, New2Python <[EMAIL PROTECTED]> wrote:
> One issue that I find now is that the removed marker is not redrawn as > removed, in other words, all the original markers remain drawn whether or > not the datapoints exist in the array. How can I remove the marker I don't > want anymore withought doing a clf() call because I can have over 300,000 > datapoints and the redraw will take ages You will need to do some extra work here. I would have a "picking mode" which is enabled by a key-stroke or button press, and when the mode is enabled, you can copy the background using the copy_background/restore region/blit techniques discussed at http://www.scipy.org/Cookbook/Matplotlib/Animations. Then you can mark your vertices and just draw the vertex marker line over the background. Alternatively, you can use the clipped line approach I pointed you to in my prior post to only plot the vertices in the viewport. You will have to do a little bookkeeping to translate the marked vertices in the viewport to the ones in the original dataset. Unfortunately, I don't have time to write the complete example right now... JDH ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
