def subdivide_face_split_rel_multiple(face, direction, splits):
sA = []
sA.append(face.vertices[direction])
lA = face.vertices[direction + 1]
sB = []
sB.append(face.vertices[direction + 3])
lB = face.vertices[(direction + 2) % len(face.vertices)]
for i in range(len(splits)):
sA.append(utils_vertex.vertex_between_rel(sA[0], lA,splits[i]))
sB.append(utils_vertex.vertex_between_rel(sB[0], lB,splits[i]))
sA.append(lA)
sB.append(lB)
result = []
for i in range(len(splits) + 1):
if(dir == 1):
f = Face([sB[i], sA[i], sA[i+1], sB[i+1]])
utils_face.face_copy_properties(face, f)
result.append(f)
else:
f = Face([sB[i], sB[i+1], sA[i+1], sA[i]])
utils_face.face_copy_properties(face, f)
result.append(f)
return result
def subdivide_face_split_rel_free_quad(face, indexEdge, split1, split2):
"""
Splits a quad in two new quads through the points specified
by relative position along the edge.
Arguments:
----------
face : mola.core.Face
The face to be extruded
indexEdge : int
direction of split, 0: 0->2, 1: 1->3
split1, split2 : float
relative position of split on each edge (0..1)
"""
# only works with quads, therefore return original face if triangular
if len(face.vertices) != 4:
return face
# constrain indexEdge to be either 0 or 1
indexEdge = indexEdge % 2
indexEdge1 = (indexEdge + 1) % len(face.vertices)
indexEdge2 = (indexEdge + 2) % len(face.vertices)
indexEdge3 = (indexEdge + 3) % len(face.vertices)
p1 = utils_vertex.vertex_between_rel(face.vertices[indexEdge],
face.vertices[indexEdge1], split1)
p2 = utils_vertex.vertex_between_rel(face.vertices[indexEdge2],
face.vertices[indexEdge3], split2)
faces = []
if indexEdge == 0:
f1 = Face([face.vertices[0], p1, p2, face.vertices[3]])
f2 = Face([p1, face.vertices[1], face.vertices[2], p2])
utils_face.face_copy_properties(face, f1)
utils_face.face_copy_properties(face, f2)
faces.extend([f1, f2])
elif indexEdge == 1:
f1 = Face([face.vertices[0], face.vertices[1], p1, p2])
f2 = Face([p2, p1, face.vertices[2], face.vertices[3]])
utils_face.face_copy_properties(face, f1)
utils_face.face_copy_properties(face, f2)
faces.extend([f1, f2])
return faces