[Qgis-developer] Show area of a polygon while editing with node tool

[Michael Pfeiffer]

Hi everybody,

I'm developing a python plugin.
Now the users of the plugin want to see the area of a polygon while editing
it with the node tool because they need to have polygons with a specific
area.
Means they move a node and the area changes while moving the node.
Is there an easy way to manage this? Are there already any examples?

Thx for your help

regards

Michael



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