1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
# Copyright (c) 2020-2022, Manfred Moitzi
# License: MIT License
import time
import ezdxf
import pathlib
import math
from ezdxf.math import cubic_bezier_interpolation, BoundingBox
from ezdxf.render import random_3d_path
CWD = pathlib.Path("~/Desktop/Outbox").expanduser()
if not CWD.exists():
CWD = pathlib.Path(".")
def profile_bezier_interpolation(count, path):
for _ in range(count):
curves = list(cubic_bezier_interpolation(path))
def profile(text, func, *args):
t0 = time.perf_counter()
func(*args)
t1 = time.perf_counter()
print(f"{text} {t1 - t0:.3f}s")
def export_path(path):
doc = ezdxf.new()
msp = doc.modelspace()
bbox = BoundingBox(path)
msp.add_polyline3d(path, dxfattribs={"layer": "Path", "color": 2})
for curve in cubic_bezier_interpolation(path):
msp.add_polyline3d(
curve.approximate(20), dxfattribs={"layer": "Bézier", "color": 1}
)
doc.set_modelspace_vport(center=bbox.center, height=bbox.size[1])
doc.saveas(CWD / "path1.dxf")
path = list(random_3d_path(100, max_step_size=10, max_heading=math.pi * 0.8))
export_path(path)
profile("Cubic Bézier interpolation: ", profile_bezier_interpolation, 100, path)
|
