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# Copyright (c) 2015-2022 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 use true-color and transparency.
# ------------------------------------------------------------------------------
def lwpolyline_with_true_color():
# for true-color and transparency is DXF version AC1018 (ACAD R2004)
# or newer necessary
doc = ezdxf.new("AC1018")
msp = doc.modelspace()
points = [(0, 0), (3, 0), (6, 3), (6, 6)]
msp.add_lwpolyline(
points,
dxfattribs={
"color": 2,
"true_color": ezdxf.rgb2int(
(38, 140, 89)
), # true color has higher priority than the color attribute
},
)
doc.saveas(CWD / "true_color_lwpolyline.dxf")
# Another way to set true-color values for DXF entities: Property DXFEntity.rgb
def lines_with_true_color():
# for true-color and transparency is DXF version AC1018 (ACAD R2004)
# or newer necessary
doc = ezdxf.new("AC1018")
msp = doc.modelspace()
for y in range(10):
line = msp.add_line((0, y * 10), (100, y * 10))
line.rgb = (50, y * 20, 50) # set true color as RGB tuple
# IMPORTANT: as you see it is not in the line.dxf namespace!
# getting RGB values by r, g, b = line.rgb also works
doc.saveas(CWD / "true_color_lines.dxf")
def rect(x, y, width=10, height=10):
return (x, y), (x + width, y), (x, y + height), (x + width, y + height)
def solids_with_true_color():
# for true-color and transparency is DXF version AC1018 (ACAD R2004)
# or newer necessary
doc = ezdxf.new("AC1018")
msp = doc.modelspace()
for i in range(10):
x = i * 7
y = i * 7
solid = msp.add_solid(rect(x, y))
solid.rgb = (50, i * 20, 50) # set true-color as RGB tuple
# IMPORTANT: as you see it is not in the solid.dxf namespace!
doc.saveas(CWD / "true_color_solids.dxf")
def solids_with_transparency():
# for true-color and transparency is DXF version AC1018 (ACAD R2004)
# or newer necessary
doc = ezdxf.new("AC1018")
msp = doc.modelspace()
for i in range(10):
x = i * 7
y = i * 7
solid = msp.add_solid(rect(x, y, 20, 20))
solid.transparency = (
i / 10.0
) # set transparency as float between 0.0 (opaque) and 1.0 (100% transparent)
# transparency: 0.0, 0.1, 0.2, ...
# IMPORTANT: as you see it is not in the sold.dxf namespace and better
# never use the raw DXF data for transparency
doc.saveas(CWD / "transparent_solids.dxf")
if __name__ == '__main__':
lwpolyline_with_true_color()
lines_with_true_color()
solids_with_true_color()
solids_with_transparency()
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