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# Copyright (c) 2023, Manfred Moitzi
# License: MIT License
import pathlib
import time
import ezdxf
from ezdxf.addons.drawing import Frontend, RenderContext
from ezdxf.addons.drawing.config import (
Configuration,
BackgroundPolicy,
ColorPolicy,
LineweightPolicy,
)
from ezdxf.addons.drawing import hpgl2, layout
from ezdxf.math import global_bspline_interpolation
CWD = pathlib.Path("~/Desktop/Outbox").expanduser()
if not CWD.exists():
CWD = pathlib.Path(".")
EXAMPLE_DXF = pathlib.Path(__file__).parent.parent.parent.parent / "examples_dxf"
# ------------------------------------------------------------------------------
# This example shows how to export the modelspace by the drawing add-on and the
# native HPGL2 backend.
#
# docs: https://ezdxf.mozman.at/docs/addons/drawing.html
# ------------------------------------------------------------------------------
CADKIT = "CADKitSamples"
CADKIT_FILES = [
"A_000217.dxf",
"AEC Plan Elev Sample.dxf",
"backhoe.dxf",
"BIKE.DXF",
"Controller-M128-top.dxf",
"drilling_machine.dxf",
"fanuc-430-arm.dxf",
"Floor plan.dxf",
"gekko.DXF",
"house design for two family with comman staircasedwg.dxf",
"house design.dxf",
"kit-dev-coldfire-xilinx_5213.dxf",
"Lock-Off.dxf",
"Mc Cormik-D3262.DXF",
"Mechanical Sample.dxf",
"Nikon_D90_Camera.DXF",
"pic_programmer.dxf",
"Proposed Townhouse.dxf",
"Shapefont.dxf",
"SMA-Controller.dxf",
"Tamiya TT-01.DXF",
"Tyrannosaurus.DXF",
"WOOD DETAILS.dxf",
]
wave = [
(0.0, 0.0),
(0.897597901, 0.78183148),
(1.79519580, 0.97492791),
(2.69279370, 0.433883739),
(3.59039160, -0.43388373),
(4.48798950, -0.97492791),
(5.38558740, -0.78183148),
(6.28318530, 0.0),
]
def export(filepath: pathlib.Path, layout_names=("Model",)):
print(f"\nprocessing: {filepath.name}")
t0 = time.perf_counter()
doc = ezdxf.readfile(filepath)
t1 = time.perf_counter()
print(f"loading time: {t1 - t0: .3f} seconds")
for layout_name in layout_names:
outname = filepath.stem + f"-[{layout_name}]" + ".plt"
print(outname)
t1 = time.perf_counter()
if layout_name == "Model":
dxf_layout = doc.modelspace()
page = layout.Page(
0, # auto-detect
0, # auto-detect
layout.Units.mm, # 1 drawing unit = 1mm
layout.Margins.all(10), # 10mm margin on all sides of the page
max_width=1189, # limit page width to 1189mm
max_height=841, # limit page height to 841mm
)
settings = layout.Settings()
else:
try:
dxf_layout = doc.paperspace(layout_name)
except KeyError:
print(f"Layout '{layout_name}' not found")
continue
page = layout.Page.from_dxf_layout(dxf_layout)
settings = layout.Settings(
fit_page=False,
scale=dxf_layout.get_plot_unit_scale_factor(),
)
backend = hpgl2.PlotterBackend()
Frontend(
RenderContext(doc),
backend,
config=Configuration(
color_policy=ColorPolicy.BLACK,
lineweight_policy=LineweightPolicy.ABSOLUTE,
),
).draw_layout(dxf_layout)
data = backend.get_bytes(page, settings=settings, curves=True, decimal_places=0)
t2 = time.perf_counter()
print(f"render time: {t2 - t1: .3f} seconds")
(CWD / outname).write_bytes(data)
def export_cadkit_samples():
for name in CADKIT_FILES[:]:
filename = ezdxf.options.test_files_path / CADKIT / name
export(filename)
def simple():
doc = ezdxf.new()
msp = doc.modelspace()
s = global_bspline_interpolation(wave)
msp.add_spline(dxfattribs={"color": 2}).apply_construction_tool(s)
msp.add_lwpolyline(wave, dxfattribs={"color": 3})
backend = hpgl2.PlotterBackend()
Frontend(RenderContext(doc), backend).draw_layout(msp)
data = backend.get_bytes(layout.Page(100, 40, layout.Units.mm))
(CWD / "wave.plt").write_bytes(data)
def triangle():
doc = ezdxf.new()
msp = doc.modelspace()
msp.add_line((0, 100), (500, 100))
msp.add_solid([(0, 0), (500, 0), (250, 500)], dxfattribs={"color": 1})
backend = hpgl2.PlotterBackend()
Frontend(RenderContext(doc), backend).draw_layout(msp)
data = backend.get_bytes(layout.Page(0, 0))
(CWD / "triangle.plt").write_bytes(data)
def text():
doc = ezdxf.new()
doc.styles.add("ARIAL", font="Arial.ttf")
msp = doc.modelspace()
msp.add_lwpolyline([(0, 0), (1000, 0), (1000, 800), (0, 800)], close=True)
msp.add_text("0123456789", height=2.5, dxfattribs={"style": "ARIAL"}).set_placement(
(100, 400)
)
backend = hpgl2.PlotterBackend()
Frontend(RenderContext(doc), backend).draw_layout(msp)
data = backend.low_quality(layout.Page(0, 0))
(CWD / "text.plt").write_bytes(data)
def transparency():
doc = ezdxf.readfile(EXAMPLE_DXF / "transparency_checker.dxf")
msp = doc.modelspace()
backend = hpgl2.PlotterBackend()
Frontend(RenderContext(doc), backend).draw_layout(msp)
data = backend.get_bytes(
layout.Page(0, 0, layout.Units.mm), settings=layout.Settings(scale=10)
)
(CWD / "transparency.plt").write_bytes(data)
if __name__ == "__main__":
text()
# export(
# pathlib.Path(r"C:\Source\dxftest\CADKitSamples\A_000217.dxf"),
# ["Model"] #, "PLAN", "SECTION"],
# )
export_cadkit_samples()
# simple()
# transparency()
# triangle()
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