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# Copyright (c) 2021, Manfred Moitzi
# License: MIT License
from typing import List
import pathlib
import ezdxf
from ezdxf.math import Vec2
from ezdxf.tools.text_size import mtext_size, WordSizeDetector
from ezdxf import path, colors
from ezdxf.addons import text2path
from ezdxf.addons import MTextExplode
CWD = pathlib.Path("~/Desktop/Outbox").expanduser()
if not CWD.exists():
CWD = pathlib.Path(".")
def rect(p1: Vec2, p2: Vec2) -> List[Vec2]:
return [
p1,
Vec2(p2.x, p1.y),
p2,
Vec2(p1.x, p2.y),
]
def main():
doc = ezdxf.new()
doc.styles.add("ARIAL", font="arial.ttf")
box_layer = doc.layers.add(
"bounding boxes based on Matplotlib", color=colors.MAGENTA
)
mtext_layer = doc.layers.add("MTEXT by current viewer")
path_layer = doc.layers.add(
"path rendering by Matplotlib", color=colors.YELLOW
)
msp = doc.modelspace()
mtext = msp.add_mtext(
"111111\n22222\n3333",
dxfattribs={"style": "ARIAL", "layer": mtext_layer.dxf.name},
)
print(f"MTEXT width: {mtext.dxf.width}")
print(f"MTEXT cap height: {mtext.dxf.char_height}")
# Add bounding boxes for all words:
word_size_detector = WordSizeDetector()
size = mtext_size(mtext, tool=word_size_detector)
for p1, p2 in word_size_detector.word_boxes():
msp.add_lwpolyline(
rect(p1, p2), close=True, dxfattribs={"layer": box_layer.dxf.name}
)
# Add bounding boxes for whole MTEXT entity:
msp.add_lwpolyline(
rect(Vec2(0, -size.total_height), Vec2(size.total_width, 0)),
close=True,
dxfattribs={"layer": box_layer.dxf.name},
)
# Add path renderings done by Matplotlib::
with MTextExplode(msp) as mtxpl:
mtxpl.explode(mtext, destroy=False)
for text_entity in msp.query("TEXT"):
text_path = text2path.make_path_from_entity(text_entity)
path.render_lwpolylines(
msp,
[text_path],
dxfattribs={
"layer": path_layer.dxf.name,
},
)
text_entity.destroy()
doc.set_modelspace_vport(
size.total_height * 1.1,
center=(size.total_width / 2, -size.total_height / 2),
)
doc.saveas(CWD / "mtext_rendering_by_matplotlib.dxf")
if __name__ == "__main__":
main()
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