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# Copyright (c) 2020-2022, Manfred Moitzi
# License: MIT License
import pathlib
import ezdxf
from ezdxf.render.forms import sphere
CWD = pathlib.Path("~/Desktop/Outbox").expanduser()
if not CWD.exists():
CWD = pathlib.Path(".")
# ------------------------------------------------------------------------------
# This example shows how to render a 3D sphere as MESH entity. The added
# face-normals show if the face-orientation follows the usual count-clockwise
# order to build outside pointing faces.
#
# docs: https://ezdxf.mozman.at/docs/render/forms.html#
# ------------------------------------------------------------------------------
def main():
doc = ezdxf.new()
doc.layers.new("mesh", dxfattribs={"color": 5})
doc.layers.new("normals", dxfattribs={"color": 6})
doc.set_modelspace_vport(6, center=(5, 0))
msp = doc.modelspace()
sphere1 = sphere(count=32, stacks=16, radius=1, quads=True)
sphere1.render_mesh(msp, dxfattribs={"layer": "mesh"})
sphere1.render_normals(msp, dxfattribs={"layer": "normals"})
doc.saveas(CWD / "sphere.dxf")
if __name__ == "__main__":
main()
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