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Performance improvement for triangulation

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This commit is contained in:
Grant Sanderson 2021-02-02 16:19:45 -08:00
parent 1097f0df96
commit 2fbe0c6ee6
1 changed files with 15 additions and 9 deletions
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24
manimlib/utils/space_ops.py
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@ -366,16 +366,22 @@ def earclip_triangulation(verts, rings):
# Find the closet pair of points with the first
# from the current ring, and the second from the
# next ring
index_pairs = [
(i, j)
for i in range(0, end0)
for j in range(end0, end1)
if i not in loop_connections
if j not in loop_connections
filtered_i, filtered_j = [
list(filter(
lambda i: i not in loop_connections,
indices
))
for indices in (range(0, end0), range(end0, end1))
]
i, j = index_pairs[np.argmin([
norm_squared(verts[i] - verts[j])
for i, j in index_pairs
i = filtered_i[np.argmin([
# It's slightly faster to use L-infinity norm
max(abs(verts[i] - verts[end0]))
for i in filtered_i
])]
j = filtered_j[np.argmin([
max(abs(verts[i] - verts[j]))
for j in filtered_j
])]
# Connect the polygon at these points so that