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Fix #5675. Bug where separate islands of polygons still merged CSS classes incorrectly.

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This commit is contained in:
Dion Moult
2025-10-11 20:39:48 +11:00
parent 0975eb455e
commit b68e8dedd2
1 changed files with 16 additions and 18 deletions
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src/bonsai/bonsai/bim/module/drawing/operator.py
+16 -18
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@@ -1480,11 +1480,10 @@ class CreateDrawing(bpy.types.Operator):
joined_paths.setdefault(hash_keys, []).append(el)
for key, els in joined_paths.items():
polygons = []
classes = set()
queue = []
for el in els:
classes.update(el.attrib["class"].split())
classes = set(el.attrib["class"].split())
classes.add(el.attrib["{http://www.ifcopenshell.org/ns}guid"])
is_closed_polygon = False
for path in el.findall("{http://www.w3.org/2000/svg}path"):
@@ -1499,31 +1498,30 @@ class CreateDrawing(bpy.types.Operator):
coords.append(coords[0])
if len(coords) > 2 and coords[0] == coords[-1]:
is_closed_polygon = True
polygons.append(shapely.Polygon(coords))
queue.append((shapely.Polygon(coords), classes))
if is_closed_polygon:
el.getparent().remove(el)
try:
merged_polygons = shapely.ops.unary_union(polygons)
except:
print("Warning. Portions of the merge failed. Please report a bug!", polygons)
merged_polygons = polygons
while queue:
polygon, polygon_classes = queue.pop()
for polygon2, polygon2_classes in queue[:]:
try:
merged_polygon = shapely.union(polygon, polygon2)
except:
print("Warning. Portions of the merge failed. Please report a bug!", polygon, polygon2)
continue
if type(merged_polygon) == shapely.Polygon:
polygon = merged_polygon
polygon_classes.update(polygon2_classes)
queue.remove((polygon2, polygon2_classes))
if type(merged_polygons) == shapely.MultiPolygon:
merged_polygons = merged_polygons.geoms
elif type(merged_polygons) == shapely.Polygon:
merged_polygons = [merged_polygons]
else:
merged_polygons = []
for polygon in merged_polygons:
g = etree.Element("g")
path = etree.SubElement(g, "path")
d = "M" + " L".join([",".join([str(o) for o in co]) for co in polygon.exterior.coords[0:-1]]) + " Z"
for interior in polygon.interiors:
d += " M" + " L".join([",".join([str(o) for o in co]) for co in interior.coords[0:-1]]) + " Z"
path.attrib["d"] = d
g.set("class", " ".join(list(classes)))
g.set("class", " ".join(list(polygon_classes)))
group.append(g)
def drawing_to_model_co(self, x: float, y: float) -> Vector: