74 lines
2.2 KiB
Python
74 lines
2.2 KiB
Python
import ezdxf
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import random # needed for random placing points
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from ezdxf.enums import TextEntityAlignment
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def get_random_point():
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"""Returns random x, y coordinates."""
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x = random.randint(-100, 100)
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y = random.randint(-100, 100)
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return x, y
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# # Create a block with the name 'FLAG'
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def create_block(doc):
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flag = doc.blocks.new(name='FLAG')
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# Add DXF entities to the block 'FLAG'.
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# The default base point (= insertion point) of the block is (0, 0).
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flag.add_lwpolyline([(0, 0), (0, 5), (4, 3), (0, 3)]) # the flag symbol as 2D polyline
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flag.add_circle((0, 0), .4, dxfattribs={'color': 2}) # mark the base point with a circle
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return flag
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def create_points(msp):
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# Get 50 random placing points.
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placing_points = [get_random_point() for _ in range(50)]
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for point in placing_points:
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# Every flag has a different scaling and a rotation of -15 deg.
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random_scale = 0.5 + random.random() * 2.0
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# Add a block reference to the block named 'FLAG' at the coordinates 'point'.
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msp.add_blockref('FLAG', point, dxfattribs={
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'xscale': random_scale,
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'yscale': random_scale,
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'rotation': -15
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})
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def add_text(msp):
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# Use method set_placement() to define the TEXT alignment, because the
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# relations between the DXF attributes 'halign', 'valign', 'insert' and
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# 'align_point' are tricky.
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msp.add_text("A Simple Text").set_placement(
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(2, 3),
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align=TextEntityAlignment.MIDDLE_RIGHT
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)
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# Using a predefined text style:
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msp.add_text(
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"Text Style Example: Liberation Serif",
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height=0.35,
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dxfattribs={"style": "LiberationSerif"}
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).set_placement((2, 6), align=TextEntityAlignment.LEFT)
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def add_polyline(msp):
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# add a LINE entity
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msp.add_line((0, 0), (50, 0))
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points = [(0, 0), (3, 0), (6, 3), (6, 6)]
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msp.add_lwpolyline(points)
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# Create a new drawing in the DXF format of AutoCAD 2010
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doc = ezdxf.new('R2018', setup=True)
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# add new entities to the modelspace
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msp = doc.modelspace()
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# # Beispiel für Text und Polyline
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# add_text(msp)
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# add_polyline(msp)
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# Beispiel für Block
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create_block(doc)
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create_points(msp)
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doc.saveas("lwpolyline.dxf")
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