Drilling down to info of selected object

[drmacro]

My goal is to write a script where the user selects an edge (in this particular case it's a circle displayed in a view in a TechDraw page)

I want to access the center point and the radius.

I have done this by hand at the python console, but I used:

Code: Select all

myobj.FreeCAD.ActiveDocument.View.getEdgeByIndex(4)
myobj.Curve.Location   # the center, returns a Vector
myobj.Curve.Radius     # returns a real

Problem is I want to use what the user has selected, but, I can't figure out to get the same info from:

Code: Select all

sel = FreeCADGui.Selection.getSelection()

I have gone through lots of examples and looked at the api wiki pages...but, have not been able to sort it out of what I've seen to this point.

It seems I can never figure out how to drill down to the bits I need.

[edi]

Maybe this can help:
https://github.com/reox/FreeCAD_macros/ ... ad.FCMacro
found in:
https://forum.freecadweb.org/viewtopic.php?f=13&t=49122

[TheMarkster]

Code: Select all

edge = Gui.Selection.getSelectionEx()[0].SubObjects[0]

You'll want to do some error checking, of course.