getvertices definition

ModificationTracker - getvertices

#Copyright (c) mostafa el ayoubi ,  2016
#Data-Shapes www.data-shapes.net , elayoubi.mostafa@gmail.com
#This code was inspired by Jeremy Tammik @Jeremytammik

def flatten(container):
    for i in container:
        if isinstance(i, (list,tuple)):
            for j in flatten(i):
                yield j
        else:
            yield i

def tostring(x):
	return x.ToString()
def getgeomlist(x):
	return list(x.get_Geometry(Options()))


def getvertices(x):
	#getting geometryelements as list
	geomelems = getgeomlist(x)
	#getting nested instance geometry for all geometry instances
	while any('GeometryInstance' in g for g in map(tostring,geomelems)):
		for index,i in enumerate(geomelems):
			if 'GeometryInstance' in i.ToString():
				geomelems[index] = i.GetInstanceGeometry()
			else:
				continue
			geomelems = list(flatten(geomelems))[0]
	#getting all faces, keeping meshes
	faces = []
	for i in geomelems:
		if 'Solid' in i.ToString():
			faces.append(list(i.Faces))
		elif 'Mesh' in i.ToString():
			faces.append(i)
		else:
			continue
	faces = list(flatten(faces))
	#getting all meshes
	meshes = []
	for f in faces:
		if 'Mesh' in f.ToString():
			meshes.append(f)
		else:
			meshes.append(f.Triangulate())
	#getting all vertices
	vertexlist = []
	for m in meshes:
		vertexlist.append(list(m.Vertices))
	vertexlist = list(flatten(vertexlist))
	#creating sorted vertex string representation of object for comparison with other indice of element
	vertexstr = ', '.join(sorted(set(map(tostring,vertexlist))))
	return vertexstr