sc.doc.Objects.FindByCrossingWindowRegion doesn't select blocks

Scripting
1

sc.doc.Objects.FindByCrossingWindowRegion doesn’t seem to work on blocks ;/

2

Hi @Daniel_Krajnik,

below seems to work, i have 2 blocks in the region and active top view:

import Rhino
import scriptcontext as sc
import rhinoscriptsyntax as rs

def DoSomething():
    
    vp = scriptcontext.doc.Views.ActiveView.ActiveViewport
    p0 = Rhino.Geometry.Point3d(-10000, -10000, 0)
    p1 = Rhino.Geometry.Point3d( 10000,  10000, 0)
    f = Rhino.DocObjects.ObjectType.InstanceReference
    rc = sc.doc.Objects.FindByCrossingWindowRegion(vp, [p0, p1], True, f)
    if rc: 
        print "Found {} blocks in region".format(rc.Count)
        rs.SelectObjects(rc)

DoSomething()

Can you post an example where it fails ?
_
c.

1 Like
4

@clement you are right, the FindByCrossingWindowRegion method works fine - it correctly detects the Block Instances. The problem for me was in the Make2D step, which didn’t process correctly these block instances - they just didn’t appear. Upon further inspection it was clear that blocks were correctly detected, but failed to go through the Compute method of the HiddenLineDrawing.

Sorry for the confusion and thanks for the help again.

5

OK, happy coding :slight_smile:

_
c.

1 Like