Michiel Jan Laurens de Hoon wrote: > This is exactly the problem. Drawing one picture may consist of many > Python commands to draw the individual elements (for example, several > graphs overlaying each other). We don't know where in the window each > element will end up until we have the list of elements complete. For > example, the axis may change (see my example to Martin). Or, if we're > drawing a 3D picture, then one element may obscure another. > > Now, if we have our plotting extension module in a separate thread, the > window will be repainted each time a new element is added. Imagine a > picture of 1000 elements: we'd have to draw 1+2+...+1000 times. > > So this is tricky: we want repainting to start as soon as possible, but > not sooner. Being able to hook into Python's event loop allows us to do so.
the solution to your problem is called damage/repair, is not tricky at all, and is supported by every GUI toolkit under the sun. (if you don't know how it works, google for "widget damage repair") </F> _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
