MeshClash results to Object User Text

[Jess]

Hi All,

I'm trying to store the results (IDs) from MeshClash as User Text (or Dictionary) to the MeshA Objects. Then I could easily analyze the clashes later with additional scripts. Below is a simple script.

Actually I'm having problems to get the object IDs (so this must be a pretty dumb question

Python Code:

import rhinoscriptsyntax as rs
import Rhino
 
def clashtest():
    mesh_set1 = rs.GetObjects("First set of meshes", rs.filter.mesh)
    if not mesh_set1: return
    mesh_set2 = rs.GetObjects("Second set of meshes", rs.filter.mesh)
    if not mesh_set2: return
    # convert the Guids into actual RhinoCommon mesh objects
    mesh_set1 = [rs.coercemesh(m) for m in mesh_set1]
    mesh_set2 = [rs.coercemesh(m) for m in mesh_set2]
 
    distance = rs.GetReal("Distance to consider a clash", 0, 0)
    if distance is None: return
    clashes = Rhino.Geometry.Intersect.MeshClash.Search(mesh_set1,mesh_set2, distance, 0)
    if not clashes:
        print "no clashes"
    else:
        print len(clashes), "clashes detected"
        for clash in clashes:
            point = clash.ClashPoint
            rs.AddPoint(point)
           
            # How to assign the ID of MeshB as user text/dictionary to MeshA ??????
 
 
if __name__=="__main__":
    clashtest()

Thanks for any help!
Jess

[Steve Baer]

Hi Jess,
I need to add a few things to RhinoCommon to make this work a little cleaner, but this should work for you for now

Python Code:

import rhinoscriptsyntax as rs
import Rhino
 
def clashtest():
    mesh_ids1 = rs.GetObjects("First set of meshes", rs.filter.mesh)
    if not mesh_ids1: return
    mesh_ids2 = rs.GetObjects("Second set of meshes", rs.filter.mesh)
    if not mesh_ids2: return
    # convert the Guids into actual RhinoCommon mesh objects
    meshes1 = [rs.coercemesh(m) for m in mesh_ids1]
    meshes2 = [rs.coercemesh(m) for m in mesh_ids2]
 
    distance = rs.GetReal("Distance to consider a clash", 0, 0)
    if distance is None: return
    clashes = Rhino.Geometry.Intersect.MeshClash.Search(meshes1, meshes2, distance, 0)
    if not clashes:
        print "no clashes"
    else:
        print len(clashes), "clashes detected"
        for clash in clashes:
            point = clash.ClashPoint
            rs.AddPoint(point)
           
            # How to assign the ID of MeshB as user text/dictionary to MeshA ??????
            for i, mesh in enumerate(meshes2):
                if clash.MeshB == mesh:
                    s = clash.MeshA.GetUserString("clash")
                    if len(s)>0: s = s + ", "
                    s = s + str(mesh_ids2[i])
                    clash.MeshA.SetUserString("clash", s)
                    break
 
 
if __name__=="__main__":
    clashtest()

[Jess]

Hi Steve,

Thanks for your quick help! It got the job done

Best,
Jess