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import bpy | |
import mathutils | |
from mathutils import Vector | |
from mathutils.geometry import interpolate_bezier | |
def get_points(spline, clean=True): | |
knots = spline.bezier_points | |
if len(knots) < 2: | |
return | |
# verts per segment | |
r = spline.resolution_u + 1 | |
# segments in spline | |
segments = len(knots) | |
if not spline.use_cyclic_u: | |
segments -= 1 | |
master_point_list = [] | |
for i in range(segments): | |
inext = (i + 1) % len(knots) | |
knot1 = knots[i].co | |
handle1 = knots[i].handle_right | |
handle2 = knots[inext].handle_left | |
knot2 = knots[inext].co | |
bezier = knot1, handle1, handle2, knot2, r | |
points = interpolate_bezier(*bezier) | |
master_point_list.extend(points) | |
# some clean up to remove consecutive doubles, this could be smarter... | |
if clean: | |
old = master_point_list | |
good = [v for i, v in enumerate(old[:-1]) if not old[i] == old[i + 1]] | |
good.append(old[-1]) | |
return good | |
# makes edge keys, ensure cyclic | |
Edges = [[i, i + 1] for i in range(n_verts - 1)] | |
if spline.use_cyclic_u: | |
Edges.append([i, 0]) | |
return master_point_list, Edges | |
# spline = bpy.data.curves[0].splines[0] | |
# points = get_points(spline) |
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