Message227014
This seems to be caused by a bug in TurtleScreen.update/turtle._drawturtle. When the speed is set to zero, the tracer method is used to regulate drawing circles, and when called with a positive integer, tracer calls update. Update iterates over the list of existing turtle objects and then updates them and calls _drawturtle on them, then redraws them, but doesn't draw lines or stamps so they'll get drawn over by shapes and images. I attached a snippet that shows the bug happening when you call update directly, if you switch the last line and use tracer instead the same thing happens. I think the way to fix it is to add stamps and lines to _drawturtle so I'm going to work on a patch that uses that approach. |
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Date |
User |
Action |
Args |
2014-09-17 18:27:17 | ingrid | set | recipients:
+ ingrid, gregorlingl, Garrett.Grimsley |
2014-09-17 18:27:17 | ingrid | set | messageid: <1410978437.41.0.377289980068.issue21077@psf.upfronthosting.co.za> |
2014-09-17 18:27:17 | ingrid | link | issue21077 messages |
2014-09-17 18:27:17 | ingrid | create | |
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