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# Copyright (c) 2015-2022 Manfred Moitzi
# License: MIT License
import pathlib
import ezdxf
from ezdxf import zoom
from ezdxf.lldxf import const
CWD = pathlib.Path("~/Desktop/Outbox").expanduser()
if not CWD.exists():
CWD = pathlib.Path(".")
# ------------------------------------------------------------------------------
# Multiple example for creating a MPOLYGON entity.
# The MPOLYGON is very similar to the HATCH entity.
#
# docs: https://ezdxf.mozman.at/docs/dxfentities/mpolygon.html
# ------------------------------------------------------------------------------
def create_simple_mpolygon_no_fill(dxfversion="R2000"):
doc = ezdxf.new(dxfversion)
msp = doc.modelspace()
mpolygon = msp.add_mpolygon(color=2, fill_color=None)
mpolygon.paths.add_polyline_path(
[(0, 0), (0, 3), (3, 6), (6, 6), (6, 3), (3, 0)]
)
zoom.extents(msp)
doc.saveas(CWD / f"simple_mpolygon_no_fill_{dxfversion}.dxf")
def create_simple_solid_aci_filled_mpolygon(dxfversion="R2000"):
doc = ezdxf.new(dxfversion)
msp = doc.modelspace()
mpolygon = msp.add_mpolygon(color=1, fill_color=5)
mpolygon.paths.add_polyline_path(
[(0, 0), (0, 3), (3, 6), (6, 6), (6, 3), (3, 0)]
)
zoom.extents(msp)
doc.saveas(CWD / f"simple_solid_aci_filled_mpolygon_{dxfversion}.dxf")
def create_simple_solid_rgb_filled_mpolygon(dxfversion="R2000"):
doc = ezdxf.new(dxfversion)
msp = doc.modelspace()
mpolygon = msp.add_mpolygon(color=1, fill_color=5)
mpolygon.paths.add_polyline_path(
[(0, 0), (0, 3), (3, 6), (6, 6), (6, 3), (3, 0)]
)
mpolygon.set_solid_fill(rgb=(60, 180, 60)) # overrides fill_color!
zoom.extents(msp)
doc.saveas(CWD / f"simple_solid_rgb_filled_mpolygon_{dxfversion}.dxf")
def create_mpolygon_with_bulge(dxfversion="R2000"):
doc = ezdxf.new(dxfversion)
msp = doc.modelspace()
mpolygon = msp.add_mpolygon(color=1, fill_color=5)
mpolygon.paths.add_polyline_path(
[(0, 0), (0, 3, 0.5), (3, 6), (6, 6), (6, 3), (3, 0)]
)
zoom.extents(msp)
doc.saveas(CWD / f"simple_mpolygon_with_bulge_{dxfversion}.dxf")
def create_simple_pattern_filled_mpolygon(dxfversion="R2000"):
doc = ezdxf.new(dxfversion)
msp = doc.modelspace()
mpolygon = msp.add_mpolygon()
mpolygon.set_pattern_fill("ANSI33", color=7, scale=0.01)
mpolygon.paths.add_polyline_path(
[(0, 0), (0, 3), (3, 6), (6, 6), (6, 3), (3, 0)]
)
zoom.extents(msp)
doc.saveas(CWD / f"simple_pattern_filled_mpolygon_{dxfversion}.dxf")
def create_pattern_filled_mpolygon_with_bgcolor():
doc = ezdxf.new("R2010")
msp = doc.modelspace()
# This is not supported by TrueView/BricsCAD!
# TrueView doesn't show this MPOLYGON at all!
mpolygon = msp.add_mpolygon()
mpolygon.set_pattern_fill("ANSI33", color=7, scale=0.01)
mpolygon.paths.add_polyline_path(
[(0, 0), (0, 3), (3, 6), (6, 6), (6, 3), (3, 0)]
)
mpolygon.bgcolor = (100, 200, 100)
zoom.extents(msp)
doc.saveas(
CWD / f"simple_pattern_filled_mpolygon_with_bgcolor_{dxfversion}.dxf"
)
def using_hatch_style():
def place_square_1(hatch, x, y):
def shift(point):
return x + point[0], y + point[1]
# outer loop - flags = 1 (external) default value
hatch.paths.add_polyline_path(
map(shift, [(0, 0), (8, 0), (8, 8), (0, 8)])
)
# first inner loop - flags = 16 (outermost)
hatch.paths.add_polyline_path(
map(shift, [(2, 2), (7, 2), (7, 7), (2, 7)]),
flags=const.BOUNDARY_PATH_OUTERMOST,
)
# any further inner loops - flags = 0 (default)
hatch.paths.add_polyline_path(
map(shift, [(4, 4), (6, 4), (6, 6), (4, 6)]),
flags=const.BOUNDARY_PATH_DEFAULT,
)
def place_square_2(hatch, x, y):
def shift(point):
return x + point[0], y + point[1]
# outer loop - flags = 1 (external) default value
hatch.paths.add_polyline_path(
map(shift, [(0, 0), (8, 0), (8, 8), (0, 8)])
)
# partly 1. inner loop - flags = 16 (outermost)
hatch.paths.add_polyline_path(
map(shift, [(3, 1), (7, 1), (7, 5), (3, 5)]),
flags=const.BOUNDARY_PATH_OUTERMOST,
)
# partly 1. inner loop - flags = 16 (outermost)
hatch.paths.add_polyline_path(
map(shift, [(1, 3), (5, 3), (5, 7), (1, 7)]),
flags=const.BOUNDARY_PATH_OUTERMOST,
)
doc = ezdxf.new("R2010")
msp = doc.modelspace()
# The hatch style tag, group code 75, is not supported for the MPOLYGON
# entity by Autodesk products!
# This example remains as it is, maybe I find a solution for this issue in
# the future.
# first create MPOLYGON entities
hatch_style_0 = msp.add_mpolygon(
color=3, fill_color=1, dxfattribs={"hatch_style": 0}
)
hatch_style_1 = msp.add_mpolygon(
color=3, fill_color=1, dxfattribs={"hatch_style": 1}
)
hatch_style_2 = msp.add_mpolygon(
color=3, fill_color=1, dxfattribs={"hatch_style": 2}
)
# then insert path elements to define the MPOLYGON boundaries
place_square_1(hatch_style_0, 0, 0)
place_square_1(hatch_style_1, 10, 0)
place_square_1(hatch_style_2, 20, 0)
# first create DXF mpolygon entities
hatch_style_0b = msp.add_mpolygon(
color=4, fill_color=2, dxfattribs={"hatch_style": 0}
)
hatch_style_1b = msp.add_mpolygon(
color=4, fill_color=2, dxfattribs={"hatch_style": 1}
)
hatch_style_2b = msp.add_mpolygon(
color=4, fill_color=2, dxfattribs={"hatch_style": 2}
)
# then insert path elements to define the MPOLYGON boundaries
place_square_2(hatch_style_0b, 0, 10)
place_square_2(hatch_style_1b, 10, 10)
place_square_2(hatch_style_2b, 20, 10)
zoom.extents(msp)
doc.saveas(CWD / "mpolygon_with_hatch_styles.dxf") # save DXF drawing
for dxfversion in ["R2000", "R2004", "R2007"]:
create_simple_mpolygon_no_fill(dxfversion)
create_simple_solid_aci_filled_mpolygon(dxfversion)
create_simple_solid_rgb_filled_mpolygon(dxfversion)
create_mpolygon_with_bulge(dxfversion)
create_simple_pattern_filled_mpolygon(dxfversion)
create_pattern_filled_mpolygon_with_bgcolor()
using_hatch_style()
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