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Fix #3256. Support file profiles made out of multiple representation items.

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This commit is contained in:
Dion Moult
2023-07-05 14:38:48 +10:00
parent a1caef5b4f
commit 6beca6382f
1 changed files with 34 additions and 14 deletions
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src/blenderbim/blenderbim/bim/module/model/opening.py
+34 -14
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@@ -19,9 +19,12 @@
import bpy
import gpu
import bmesh
import shapely
import logging
import numpy as np
import ifcopenshell
import ifcopenshell.util.shape
import ifcopenshell.util.element
import ifcopenshell.util.shape_builder
import ifcopenshell.util.representation
import blenderbim.tool as tool
@@ -215,9 +218,8 @@ class FilledOpeningGenerator:
def generate_opening_from_filling(self, filling, filling_obj, voided_obj):
thickness = voided_obj.dimensions[1] + 0.1 + 0.1
ifc_file = tool.Ifc.get()
unit_scale = ifcopenshell.util.unit.calculate_unit_scale(ifc_file)
shape_builder = ifcopenshell.util.shape_builder.ShapeBuilder(ifc_file)
unit_scale = ifcopenshell.util.unit.calculate_unit_scale(tool.Ifc.get())
shape_builder = ifcopenshell.util.shape_builder.ShapeBuilder(tool.Ifc.get())
profile = None
filling_type = ifcopenshell.util.element.get_type(filling)
@@ -226,26 +228,44 @@ class FilledOpeningGenerator:
filling_type, "Model", "Profile", "ELEVATION_VIEW"
)
filling_obj = tool.Ifc.get_object(filling_type)
context = ifcopenshell.util.representation.get_context(ifc_file, "Model", "Body", "MODEL_VIEW")
context = ifcopenshell.util.representation.get_context(tool.Ifc.get(), "Model", "Body", "MODEL_VIEW")
if profile:
curve_3d = ifcopenshell.util.representation.resolve_representation(profile).Items[0]
profile = ifcopenshell.util.representation.resolve_representation(profile)
def get_curve_2d_from_3d(curve_3d):
if tool.Ifc.get_schema() == "IFC2X3":
coords = [Vector(p).xz for p in shape_builder.get_polyline_coords(curve_3d)]
ifc_curve = shape_builder.polyline(coords, closed=True)
else:
def get_curve_2d_from_3d(profile):
if len(profile.Items) == 1:
curve_3d = profile.Items[0]
if tool.Ifc.get_schema() == "IFC2X3":
coords = [Vector(p).xz for p in shape_builder.get_polyline_coords(curve_3d)]
return shape_builder.polyline(coords, closed=True)
# using different algorithm to keep arc segments possible in the future
ifc_segments = [shape_builder.deep_copy(s) for s in curve_3d.Segments]
ifc_points = ifc_file.createIfcCartesianPointList2D(
ifc_points = tool.Ifc.get().createIfcCartesianPointList2D(
[Vector(p).xz for p in curve_3d.Points.CoordList]
)
ifc_curve = ifc_file.createIfcIndexedPolyCurve(Points=ifc_points, Segments=ifc_segments)
return ifc_curve
return tool.Ifc.get().createIfcIndexedPolyCurve(Points=ifc_points, Segments=ifc_segments)
settings = ifcopenshell.geom.settings()
settings.set(settings.INCLUDE_CURVES, True)
geometry = ifcopenshell.geom.create_shape(settings, profile)
verts = ifcopenshell.util.shape.get_vertices(geometry)
# [0, 2] represents X and Z ordinates
verts = [(np.around(v[[0, 2]], decimals=3) / unit_scale).tolist() for v in verts]
edges = ifcopenshell.util.shape.get_edges(geometry)
boundary_lines = [shapely.LineString([verts[v] for v in e]) for e in edges]
unioned_boundaries = shapely.union_all(shapely.GeometryCollection(boundary_lines))
closed_polygons = shapely.polygonize(boundary_lines)
polygon = max(closed_polygons.geoms, key=lambda polygon: polygon.area)
if tool.Ifc.get_schema() == "IFC2X3":
return shape_builder.polyline(list(polygon.exterior.coords))
points = tool.Ifc.get().createIfcCartesianPointList2D(list(polygon.exterior.coords))
return tool.Ifc.get().createIfcIndexedPolyCurve(points)
extrusion = shape_builder.extrude(
get_curve_2d_from_3d(curve_3d),
get_curve_2d_from_3d(profile),
magnitude=thickness / unit_scale,
position=Vector([0.0, -0.1 / unit_scale, 0.0]),
position_x_axis=Vector((1, 0, 0)),