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# Copyright (c) 2020-2022, Manfred Moitzi
# License: MIT License
import time
import pathlib
import ezdxf
from ezdxf.addons import iterdxf
CWD = pathlib.Path("~/Desktop/Outbox").expanduser()
if not CWD.exists():
CWD = pathlib.Path(".")
# ------------------------------------------------------------------------------
# This example shows how iterate over very big DXF files without loading them
# into memory. This takes much longer, but it's maybe the only way to process
# these very large files.
#
# This example uses the opendxf() method to copy modelspace entities and also
# preserves ALL resources defined in the source DXF document.
#
# docs: https://ezdxf.mozman.at/docs/addons/iterdxf.html#ezdxf.addons.iterdxf.opendxf
# ------------------------------------------------------------------------------
def main():
t0 = time.perf_counter()
doc = iterdxf.opendxf(ezdxf.options.test_files_path / "GKB-R2010.dxf")
line_exporter = doc.export(CWD / "lines.dxf")
text_exporter = doc.export(CWD / "text.dxf")
polyline_exporter = doc.export(CWD / "polyline.dxf")
lwpolyline_exporter = doc.export(CWD / "lwpolyline.dxf")
try:
for entity in doc.modelspace():
if entity.dxftype() == "LINE":
line_exporter.write(entity)
elif entity.dxftype() == "TEXT":
text_exporter.write(entity)
elif entity.dxftype() == "POLYLINE":
polyline_exporter.write(entity)
elif entity.dxftype() == "LWPOLYLINE":
lwpolyline_exporter.write(entity)
finally:
line_exporter.close()
text_exporter.close()
polyline_exporter.close()
lwpolyline_exporter.close()
doc.close()
print(f"Processing time: {time.perf_counter()-t0:.2f}s")
if __name__ == "__main__":
main()
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