Hi Paul, > I would like to be able to use matplotlib as an object canvas, where > items on the canvas receive mouse events (enter, leave, press, > release) and the registered callback is invoked.
I do this rather extensively with the wxAgg backend and wxPython widgets. Which backend/platform are you targeting? > For example, I want to be able to highlight the line associated with > the legend entry as I mouse over the legend, and conversely highlight > the legend entry associated with the line as I mouse over the line. > I will also want to do operations such right clicking on the axis to > modify axis properties such as linear/log scale, and click on legend > entries to toggle lines on and off. These things are all do-able, but my experience has been that I've needed to modify backend_bases.py, backend_wx.py, and backend_wxagg.py in order to implement some of my own mouse events (double click, context click). Further, I capture some wx events and pass them on to my plotting canvas without using the mpl event system. As long as you translate the pick locations properly (mpl uses lower left as x=0,y=0, where wx uses upper left) it's not too difficult. > >From looking at the pick_event_demo in examples, I have a lot of work > ahead of me. Is this the state of the art? Yes. Prior to 0.90 there was no pick_event at all, and doing picking and hit testing was much more complicated. My own code existed pre 0.90 and so I have my own pick routines which work well but might be improved by updating them to the new picker features. The problem is, of course, that they work well enough and I've got other fish to fry. There are quite a number of more experienced and more qualified people on this list that also do the things you're talking about, but as far as I know there's no "one way". Good luck, Anthony. -- Anthony Floyd, PhD Convergent Manufacturing Technologies Inc. 6190 Agronomy Rd, Suite 403 Vancouver BC V6T 1Z3 CANADA Email: [EMAIL PROTECTED] | Tel: 604-822-9682 WWW: http://www.convergent.ca | Fax: 604-822-9659 CMT is hiring: See http://www.convergent.ca for details ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
