Pyqt5 extended image annotation graph

Asked Jun 25 '22 at 14:10

Active Jun 25 '22 at 22:49

Viewed 69 times

I am trying to annotate an image with a multiple closed cells like structure. New to PyQt so I found this straightforeward nice code from eyllanesc here:

PyQT User Editable Polygons

I need to extend this, so that I can add further polylines to the first polygon with mouse clicks. These should start and end at existing nodes from the first poly. At the end I would like to retrieve the points and edges from this multi poly object.

Could I do this with QGraphicsPoligonItem? Seems to be always closed .. Or do I need to switch to QPainterPath? And how..

Any advise would be helpfull..

edited Jun 25 '22 at 22:49

asked Jun 25 '22 at 14:10

yoernson

That link is for a profile page. Besides, as you already found out, QGraphicsPolygonItem uses closes polygons, so if you need "open" paths, you can only use QGraphicsPathItem. – musicamante Jun 25 '22 at 14:26
Sorry! Now the right link. – yoernson Jun 25 '22 at 22:50

Pyqt5 extended image annotation graph

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