from pathlib import Path
from time import perf_counter
import ezdxf
from ezdxf.render.forms import sphere
from ezdxf.addons import MengerSponge
from ezdxf.addons.pycsg import CSG
DIR = Path("~/Desktop/Outbox").expanduser()
doc = ezdxf.new()
doc.layers.new("sponge", dxfattribs={"color": 5})
doc.layers.new("sphere", dxfattribs={"color": 6})
doc.set_modelspace_vport(6, center=(5, 0))
msp = doc.modelspace()
sponge1 = MengerSponge(level=3).mesh()
sphere1 = sphere(count=32, stacks=16, radius=0.5,
quads=True).translate(0.25, 0.25, 1)
t0 = perf_counter()
subtract = CSG(sponge1, meshid=1) - CSG(sphere1, meshid=2)
t1 = perf_counter()
# get mesh result by id
subtract.mesh(1).render_mesh(msp, dxfattribs={"layer": "sponge"})
subtract.mesh(2).render_mesh(msp, dxfattribs={"layer": "sphere"})
print(f"runtime: {t1-t0:.3f}s")
doc.saveas(DIR / "csg_sphere_vs_menger_sponge.dxf")
from ezdxf.render.forms import cube, cylinder_2p
DIR = Path("~/Desktop/Outbox").expanduser()
cube1 = cube()
cylinder1 = cylinder_2p(count=32,
base_center=(0, -1, 0),
top_center=(0, 1, 0),
radius=0.25)
doc = ezdxf.new()
doc.set_modelspace_vport(6, center=(5, 0))
msp = doc.modelspace()
# build solid union
union = CSG(cube1) + CSG(cylinder1)
# convert to mesh and render mesh to modelspace
union.mesh().render_mesh(msp, dxfattribs={"color": 1})
# build solid difference
difference = CSG(cube1) - CSG(cylinder1)
# convert to mesh, translate mesh and render mesh to modelspace
difference.mesh().translate(1.5).render(msp, dxfattribs={"color": 3})
# build solid intersection
intersection = CSG(cube1) * CSG(cylinder1)
# convert to mesh, translate mesh and render mesh to modelspace
intersection.mesh().translate(2.75).render(msp, dxfattribs={"color": 5})
doc.saveas(DIR / "pycsg01.dxf")
