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# Copyright (c) 2019-2022 Manfred Moitzi
# License: MIT License
import pathlib
import ezdxf
CWD = pathlib.Path("~/Desktop/Outbox").expanduser()
if not CWD.exists():
CWD = pathlib.Path(".")
# ------------------------------------------------------------------------------
# This example shows how to transform entities by putting them into an anonymous
# BLOCK and INSERT them transformed. This was the only way to transform entities
# by ezdxf before the general transformation support was added in version v0.14.
# ------------------------------------------------------------------------------
def main(size=5):
doc = ezdxf.new()
msp = doc.modelspace()
msp.add_polyline2d([(0, 0), (size, 0), (size, size), (0, size)], close=True)
msp.add_circle((size / 2, size / 2), radius=size / 2)
doc.saveas(CWD / "transformation_example_before.dxf")
# create a new anonymous block
block = doc.blocks.new_anonymous_block(base_point=(0, 0))
# move entities from modelspace to the new block
# create a list, because entities are removed from modelspace while iterating
for entity in list(msp):
msp.move_to_layout(entity, block)
# insert block wherever you want
msp.add_blockref(
block.name,
insert=(10, 10),
dxfattribs={
"rotation": 23, # with rotation
"xscale": 1.5, # and none uniform scaling
"yscale": 3.7,
},
)
doc.saveas(CWD / "transformation_example_after.dxf")
if __name__ == '__main__':
main()
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