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[dxf] improve dxf reader (ezdxf 1.4 related LWPolyLine changes)

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jan 2026-03-09 11:16:30 -07:00
commit 3792248cd1
1 changed files with 25 additions and 17 deletions
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40
masque/file/dxf.py
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@ -218,28 +218,36 @@ def _read_block(block: ezdxf.layouts.BlockLayout | ezdxf.layouts.Modelspace) ->
layer = attr.get('layer', DEFAULT_LAYER)
width = 0
if points.shape[1] > 2:
if (points[0, 2] != points[:, 2]).any():
raise PatternError('PolyLine has non-constant width (not yet representable in masque!)')
if points.shape[1] == 4 and (points[:, 3] != 0).any():
raise PatternError('LWPolyLine has bulge (not yet representable in masque!)')
if isinstance(element, LWPolyline):
# ezdxf 1.4+ get_points() returns (x, y, start_width, end_width, bulge)
if points.shape[1] >= 5:
if (points[:, 4] != 0).any():
raise PatternError('LWPolyline has bulge (not yet representable in masque!)')
if (points[:, 2] != points[:, 3]).any() or (points[:, 2] != points[0, 2]).any():
raise PatternError('LWPolyline has non-constant width (not yet representable in masque!)')
width = points[0, 2]
elif points.shape[1] == 3:
# width used to be in column 2
width = points[0, 2]
width = points[0, 2]
if width == 0:
width = attr.get('const_width', 0)
if width == 0:
width = attr.get('const_width', 0)
is_closed = element.closed
# If the last point is a repeat of the first, drop it.
if len(points) > 1 and numpy.allclose(points[0, :2], points[-1, :2]):
verts = points[:-1, :2]
else:
verts = points[:, :2]
verts = points[:, :2]
if is_closed and (len(verts) < 2 or not numpy.allclose(verts[0], verts[-1])):
verts = numpy.vstack((verts, verts[0]))
shape: Path | Polygon
if width == 0 and is_closed and len(verts) >= 3:
shape = Polygon(vertices=verts)
if width == 0 and is_closed:
# Use Polygon if it has at least 3 unique vertices
shape_verts = verts[:-1] if len(verts) > 1 else verts
if len(shape_verts) >= 3:
shape = Polygon(vertices=shape_verts)
else:
shape = Path(width=width, vertices=verts)
else:
shape = Path(width=width, vertices=points[:, :2])
shape = Path(width=width, vertices=verts)
pat.shapes[layer].append(shape)
elif isinstance(element, Solid | Trace):