Hi @dale,
there seems to be a bug in the FindByCrossingWindowRegion method in V5 and V6. If the region contains a group, objects are found multiple times. To reproduce, please run below code with the file attached:
import Rhino
import scriptcontext
def DoSomething():
p = Rhino.Geometry.Plane.WorldXY
r = Rhino.Geometry.Rectangle3d(p, 20, 20).ToPolyline()
v = scriptcontext.doc.Views.ActiveView.ActiveViewport
f = Rhino.DocObjects.ObjectType.Curve
rc = scriptcontext.doc.Objects.FindByCrossingWindowRegion(v, r, True, f)
print "Found {} curves".format(rc.Count)
DoSomething()
If finds 5 curves, but only 4 are in the file. If the 4 curves are ungrouped, it works OK. Additionally please select the objects (grouped or ungrouped) and then run the code snipped again. It does not find any curve.
FindByCrossingWindowRegion.3dm (45.8 KB)
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c,