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# Copyright (c) 2019-2022, Manfred Moitzi
# License: MIT License
import pathlib
import ezdxf
from ezdxf.math import UCS, OCS
CWD = pathlib.Path("~/Desktop/Outbox").expanduser()
if not CWD.exists():
CWD = pathlib.Path(".")
# ------------------------------------------------------------------------------
# This example shows how to place a 2D entity in 3D by using OCS coordinates.
#
# basic concept OCS: https://ezdxf.mozman.at/docs/concepts/ocs.html
# OCS: https://ezdxf.mozman.at/docs/math/core.html#ocs-class
# UCS: https://ezdxf.mozman.at/docs/math/core.html#ucs-class
# tutorial: https://ezdxf.mozman.at/docs/tutorials/ucs_transform.html
# ------------------------------------------------------------------------------
def main(filename):
doc = ezdxf.new("R2010")
msp = doc.modelspace()
origin = (3, 3, 3)
axis = (1, 0, -1)
def_point = (3, 10, 4)
ucs = UCS.from_z_axis_and_point_in_yz(origin, axis=axis, point=def_point)
ucs.render_axis(msp, length=5)
msp.add_point(location=def_point, dxfattribs={"color": 2})
ocs = OCS(ucs.uz)
msp.add_circle(
center=ocs.from_wcs(origin),
radius=1,
dxfattribs={
"color": 2,
"extrusion": ucs.uz,
},
)
doc.saveas(filename)
if __name__ == "__main__":
main(CWD / "using_ucs.dxf")
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