Rhino Mesh intersection checks

check_min_dist.py

# imports need to be cleaned up
import rhinoscript.userinterface
from rhinoscript import geometry
import rhinoscriptsyntax as rs
import System,Rhino
from time import sleep
import os
from Rhino.DocObjects import *
import scriptcontext
from System import *
from Rhino import *
from Rhino.DocObjects import *
from Rhino.Geometry import *
from Rhino.Input import *
from Rhino.Input.Custom import *
from Rhino.Commands import *
from scriptcontext import doc



def CheckMinDist(min_dist):
    result,objects = Rhino.Input.RhinoGet.GetMultipleObjects('Get objects to check',False,ObjectType.Mesh)
    meshes = [m.Geometry() for m in objects]
    meshes = [ m for m in meshes if type(m) is Mesh]
    meshes = [ Rhino.Geometry.Mesh.Offset(m,-min_dist/2.0) for m in meshes if type(m) is Mesh]
    intersection_lines = []
    while meshes:
        mesh = meshes.pop(0)
        for other in meshes:
           intersections = Rhino.Geometry.Intersect.Intersection.MeshMeshAccurate(mesh,other,0.001)
           for i in intersections or []:
               scriptcontext.doc.Objects.AddPolyline(i)
               sphere = Rhino.Geometry.Sphere(i[0],5)
               scriptcontext.doc.Objects.AddSphere(sphere)
               intersection_lines.append(i)
    scriptcontext.doc.Views.Redraw()
    if intersection_lines:
        print 'found %s intersections:'%len( intersection_lines)
       
    else:
        print 'No intersections'
    return 0
    
    
CheckMinDist(0.39)


def Get_Empty(min_dist):
    result,objects = Rhino.Input.RhinoGet.GetMultipleObjects('Get objects to check',False,ObjectType.Mesh)
    result,box =  Rhino.Input.RhinoGet.GetOneObject('Get box',False,ObjectType.Mesh)
#    box = rs.GetObject('get box')
    box = box.Geometry()
    meshes = [m.Geometry() for m in objects]
    meshes = [ m for m in meshes if type(m) is Mesh]
    meshes = [ Rhino.Geometry.Mesh.Offset(m,-min_dist) for m in meshes if type(m) is Mesh]
    max_x,max_y,max_z = 180,220,100
    for z in range(0,max_z,10):
          for y in range(0,max_y,10):  
              for x in range(0,max_x,10):
                  box.Transform(Transform.Translation(x,y,z))
                  ok = True
                  for r in meshes:
                      if Rhino.Geometry.Intersect.Intersection.MeshMeshAccurate(box,r,0.001):
                          ok = False
                          break
                  if not ok:
                    scriptcontext.doc.Objects.AddMesh(box)
                  box.Transform(Transform.Translation(-x,-y,-z))
    scriptcontext.doc.Views.Redraw()

    return 0
    
        
#Get_Empty(0.4)