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
44
45
46
47
48
49
50
51
52
53
54
|
# Copyright (c) 2020-2022, Manfred Moitzi
# License: MIT License
import pathlib
import ezdxf
from ezdxf.render.forms import sphere, cube
from ezdxf.addons.pycsg import CSG
CWD = pathlib.Path("~/Desktop/Outbox").expanduser()
if not CWD.exists():
CWD = pathlib.Path(".")
# ------------------------------------------------------------------------------
# This example shows how to use the pycsg add-on (Constructive Solid Geometry).
#
# docs: https://ezdxf.mozman.at/docs/addons/pycsg.html
# ------------------------------------------------------------------------------
NLENGTH = 0.05
def main():
doc = ezdxf.new()
doc.layers.new("csg", dxfattribs={"color": 1})
doc.layers.new("normals", dxfattribs={"color": 6})
doc.set_modelspace_vport(6, center=(5, 0))
msp = doc.modelspace()
cube1 = cube().translate(-0.5, -0.5, -0.5)
sphere1 = sphere(count=32, stacks=16, radius=0.5, quads=True)
union = (CSG(cube1) + CSG(sphere1)).mesh()
union.render_mesh(msp, dxfattribs={"layer": "csg", "color": 1})
union.render_normals(
msp, length=NLENGTH, relative=False, dxfattribs={"layer": "normals"}
)
subtract = (CSG(cube1) - CSG(sphere1)).mesh().translate(2.5)
subtract.render_mesh(msp, dxfattribs={"layer": "csg", "color": 3})
subtract.render_normals(
msp, length=NLENGTH, relative=False, dxfattribs={"layer": "normals"}
)
intersection = (CSG(cube1) * CSG(sphere1)).mesh().translate(4)
intersection.render_mesh(msp, dxfattribs={"layer": "csg", "color": 5})
intersection.render_normals(
msp, length=NLENGTH, relative=False, dxfattribs={"layer": "normals"}
)
doc.saveas(CWD / "csg_sphere.dxf")
if __name__ == "__main__":
main()
|
