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ShapeBuilder.polyline - skip creating segments if they are not needed

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This commit is contained in:
Andrej730
2023-07-05 13:02:05 +05:00
parent 4efe780df7
commit 5b10923b45
3 changed files with 214 additions and 208 deletions
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src/ifcopenshell-python/ifcopenshell/util/shape_builder.py
+38 -28
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@@ -42,6 +42,28 @@ class ShapeBuilder:
if arc_points and self.file.schema == "IFC2X3":
raise Exception("Arcs are not supported for IFC2X3.")
if position_offset:
points = [Vector(p) + position_offset for p in points]
if self.file.schema == "IFC2X3":
points = [self.file.createIfcCartesianPoint(p) for p in points]
if closed:
points.append(points[0])
ifc_curve = self.file.createIfcPolyline(Points=points)
return ifc_curve
dimensions = len(points[0])
if dimensions == 2:
ifc_points = self.file.createIfcCartesianPointList2D(points)
elif dimensions == 3:
ifc_points = self.file.createIfcCartesianPointList3D(points)
if not closed and not arc_points:
ifc_curve = self.file.createIfcIndexedPolyCurve(Points=ifc_points)
return ifc_curve
# if curve is closed or we have arc points
# then we do need to create segments
segments = []
cur_i = 0
while cur_i < len(points) - 1:
@@ -55,38 +77,26 @@ class ShapeBuilder:
if closed:
segments.append((len(points), 1))
if position_offset:
points = [Vector(p) + position_offset for p in points]
if self.file.schema == "IFC2X3":
points = [self.file.createIfcCartesianPoint(p) for p in points]
ifc_curve = self.file.createIfcPolyline(Points=points)
else:
dimensions = len(points[0])
if dimensions == 2:
ifc_points = self.file.createIfcCartesianPointList2D(points)
elif dimensions == 3:
ifc_points = self.file.createIfcCartesianPointList3D(points)
ifc_segments = []
# because IfcLineIndex support 2+ points
# we merge neighbor line segments into one
current_line_segment = []
last_segment = len(segments) - 1
for seg_i, segment in enumerate(segments):
if len(segment) == 2:
# check if `current_line_segment` is empty to avoid duplicated indices like `IfcLineIndex((1,2,2,3,3,4,4,1))`
current_line_segment += segment if not current_line_segment else segment[1:]
ifc_segments = []
# because IfcLineIndex support 2+ points
# we merge neighbor line segments into one
current_line_segment = []
last_segment = len(segments) - 1
for seg_i, segment in enumerate(segments):
if len(segment) == 2:
# check if `current_line_segment` is empty to avoid duplicated indices like `IfcLineIndex((1,2,2,3,3,4,4,1))`
current_line_segment += segment if not current_line_segment else segment[1:]
if current_line_segment and (len(segment) == 3 or seg_i == last_segment):
ifc_segments.append(self.file.createIfcLineIndex(current_line_segment))
current_line_segment = []
if current_line_segment and (len(segment) == 3 or seg_i == last_segment):
ifc_segments.append(self.file.createIfcLineIndex(current_line_segment))
current_line_segment = []
if len(segment) == 3:
ifc_segments.append(self.file.createIfcArcIndex(segment))
if len(segment) == 3:
ifc_segments.append(self.file.createIfcArcIndex(segment))
# NOTE: IfcIndexPolyCurve support only consequtive segments
ifc_curve = self.file.createIfcIndexedPolyCurve(Points=ifc_points, Segments=ifc_segments)
# NOTE: IfcIndexPolyCurve support only consequtive segments
ifc_curve = self.file.createIfcIndexedPolyCurve(Points=ifc_points, Segments=ifc_segments)
return ifc_curve
def get_rectangle_coords(self, size: Vector = Vector((1.0, 1.0)).freeze(), position: Vector = None):