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import mathutils | |
from mathutils import Vector | |
import math | |
def get_length(verts): | |
summed = 0 | |
lengths = [] | |
lengths_add = lengths.append | |
for idx in range(len(verts)-1): | |
segment = (verts[idx]-verts[idx+1]).length | |
summed += segment | |
lengths_add(segment) | |
return summed, lengths | |
def get_verts_n_edges(verts, lengths, seg_width, tlen): | |
K = seg_width | |
# print('start seg width:', seg_width) | |
eps = 0.0001 | |
new_points = [] | |
add_point = new_points.append | |
def consume(K, A, idx, v1): | |
# tlen -= A | |
# if tlen <= 0: | |
# return | |
if idx > len(lengths)-2: | |
return | |
R = K - A | |
# close enough to start fresh segment | |
if (-eps <= R <= eps): | |
K = seg_width | |
idx += 1 | |
add_point(verts[idx]) | |
A = lengths[idx] | |
consume(K, A, idx, None) | |
elif (R < -eps): | |
# must divide segment, same idx | |
rate = A / R | |
if not v1: | |
v1 = verts[idx] | |
v2 = verts[idx+1] | |
vmid = v1.lerp(v2, rate) | |
add_point(vmid) | |
A = (vmid-v2).length | |
consume(seg_width, A, idx, v1) | |
elif (R > eps): | |
# consume segment, update k, update idx | |
A = lengths[idx+1] | |
consume(R, A, idx+1, None) | |
consume(K, lengths[0], 0, None) | |
add_point(verts[-1]) | |
return new_points |
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