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# Copyright (c) 2020-2022, Manfred Moitzi
# License: MIT License
import pathlib
from typing import cast
import ezdxf
CWD = pathlib.Path("~/Desktop/Outbox").expanduser()
if not CWD.exists():
CWD = pathlib.Path(".")
# ------------------------------------------------------------------------------
# This example shows how to explode block references (INSERT entities).
#
# https://ezdxf.mozman.at/docs/tutorials/blocks.html
# ------------------------------------------------------------------------------
def main():
doc = ezdxf.new("R2010")
msp = doc.modelspace()
block = doc.blocks.new(name="TEST")
block.add_lwpolyline(
[(0, 0), (1, 0), (1, 1), (0, 1)], close=True, dxfattribs={"color": 3}
)
block.add_circle((0.5, 0.5), 0.5, dxfattribs={"color": 1})
block.add_text(
"TEST", dxfattribs={"height": 0.1, "color": 5, "rotation": 45}
).set_pos((0.5, 0.5), align="MIDDLE_CENTER")
block.add_spline(fit_points=[(0, 0), (0.4, 0.3), (0.6, 0.7), (1, 1)])
block.add_ellipse(
center=(0.5, 0.5),
major_axis=(0.5, 0.5),
ratio=0.5,
dxfattribs={"color": 5},
)
block.add_lwpolyline(
[(0, 1.1), (0.3, 1.1, -0.5), (0.7, 1.1), (1, 1.1)],
format="xyb",
dxfattribs={"color": 6},
)
# horizontal
msp.add_blockref("TEST", (0, 0))
msp.add_blockref("TEST", (2, 0)).set_scale(2)
msp.add_blockref(
"TEST", (5, 0), dxfattribs={"xscale": 2}
) # none uniform scaling
# rotated 45 degrees
msp.add_blockref("TEST", (0, 3), dxfattribs={"rotation": 45})
msp.add_blockref("TEST", (2, 3), dxfattribs={"rotation": 45}).set_scale(2)
msp.add_blockref(
"TEST", (5, 3), dxfattribs={"xscale": 2, "rotation": 45}
) # none uniform scaling
doc.set_modelspace_vport(4, center=(3, 3))
doc.saveas(CWD / "scaling.dxf")
# Explode flag block references
for block in msp.query("INSERT[name=='TEST']"):
cast("Insert", block).explode()
doc.saveas(CWD / "exploded.dxf")
if __name__ == "__main__":
main()
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