Glassvision/IfcOpenShell
1
0
Fork 0
mirror of https://github.com/IfcOpenShell/IfcOpenShell.git synced 2026-08-10 01:41:57 +00:00
Code Issues Packages Projects Releases Wiki Activity

Updates representations in IfcAlignment example

Browse Source
This commit is contained in:
Richard Brice
2023-12-07 09:46:23 -08:00
parent 4b933812a7
commit 84a8c370c1
1 changed files with 66 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/examples/IfcAlignment.cpp
+66 -29
View File
@@ -159,7 +159,12 @@ int main()
}
auto site = file.addSite(project, nullptr);
auto local_placement = site->ObjectPlacement();
if (!local_placement) {
local_placement = file.addLocalPlacement();
}
auto geometric_representation_context = file.getRepresentationContext(std::string("Model")); // creates the representation context if it doesn't already exist
//
// Define horizontal alignment
@@ -245,21 +250,43 @@ int main()
horizontal_curve_segments->push(terminator_segment.first);
horizontal_segments->push(terminator_segment.second);
auto composite_curve = new Schema::IfcCompositeCurve(horizontal_curve_segments, false/*not self-intersecting*/);
// create plan view footprint model representation for the horizontal alignment
// start by defining a composite curve composed of the horizonal curve segments
auto composite_curve = new Schema::IfcCompositeCurve(horizontal_curve_segments, false /*not self-intersecting*/);
file.addEntity(composite_curve);
typename aggregate_of<typename Schema::IfcRepresentationItem>::ptr representation_items(new aggregate_of<typename Schema::IfcRepresentationItem>());
representation_items->push(composite_curve);
// the composite curve is a representation item
typename aggregate_of<typename Schema::IfcRepresentationItem>::ptr alignment_representation_items(new aggregate_of<typename Schema::IfcRepresentationItem>());
alignment_representation_items->push(composite_curve);
auto geometric_representation_context = file.getRepresentationContext(std::string("3D")); // creates the representation context if it doesn't already exist
auto representation_subcontext = new Schema::IfcGeometricRepresentationSubContext(std::string("Axis"), std::string("Model"), geometric_representation_context, boost::none, Schema::IfcGeometricProjectionEnum::IfcGeometricProjection_GRAPH_VIEW, boost::none);
file.addEntity(representation_subcontext);
auto shape_representation_2D = new Schema::IfcShapeRepresentation(representation_subcontext, std::string("FootPrint"), std::string("Curve2D"), representation_items);
file.addEntity(shape_representation_2D);
// create the footprint representation subcontext for CT 4.1.7.1.1.2 Alignment Geometry - Horizontal and Vertical
auto footprint_representation_subcontext = new Schema::IfcGeometricRepresentationSubContext(std::string("FootPrint"), std::string("Model"), geometric_representation_context, boost::none, Schema::IfcGeometricProjectionEnum::IfcGeometricProjection_MODEL_VIEW, boost::none);
file.addEntity(footprint_representation_subcontext);
auto horizontal_alignment = new Schema::IfcAlignmentHorizontal(IfcParse::IfcGlobalId(), nullptr, std::string("Horizontal Alignment"), boost::none, boost::none, nullptr, nullptr/*representation*/);
// create the footprint representation
auto footprint_shape_representation = new Schema::IfcShapeRepresentation(footprint_representation_subcontext, std::string("FootPrint"), std::string("Curve2D"), alignment_representation_items);
file.addEntity(footprint_shape_representation);
// create the axis representation subcontext for CT 4.1.7.1.1.1 Alignment Geometry - Horizontal
auto axis2d_representation_subcontext = new Schema::IfcGeometricRepresentationSubContext(std::string("Axis"), std::string("Model"), geometric_representation_context, boost::none, Schema::IfcGeometricProjectionEnum::IfcGeometricProjection_MODEL_VIEW, boost::none);
file.addEntity(axis2d_representation_subcontext);
// create axis curve 2d representation
auto axis2d_shape_representation = new Schema::IfcShapeRepresentation(axis2d_representation_subcontext, std::string("Axis"), std::string("Curve2D"), alignment_representation_items);
file.addEntity(axis2d_shape_representation);
// there are two representations for the horizontal alignment (footprint and axis2d)
typename aggregate_of<typename Schema::IfcRepresentation>::ptr horizontal_representations(new aggregate_of<typename Schema::IfcRepresentation>());
horizontal_representations->push(footprint_shape_representation);
horizontal_representations->push(axis2d_shape_representation);
auto horizontal_product = new Schema::IfcProductDefinitionShape(std::string("Horizontal product definition shape"), boost::none, horizontal_representations);
auto horizontal_alignment = new Schema::IfcAlignmentHorizontal(IfcParse::IfcGlobalId(), nullptr, std::string("Horizontal Alignment"), boost::none, boost::none, local_placement, horizontal_product);
file.addEntity(horizontal_alignment);
// for the business logic, nest the individual horizontal alignment segment with the alignment
auto nests_horizontal_segments = new Schema::IfcRelNests(IfcParse::IfcGlobalId(), nullptr, boost::none, std::string("Nests horizontal alignment segments with horizontal alignment"), horizontal_alignment, horizontal_segments);
file.addEntity(nests_horizontal_segments);
@@ -332,33 +359,43 @@ int main()
vertical_curve_segments->push(vertical_terminator_segment.first);
vertical_segments->push(vertical_terminator_segment.second);
auto vertical_profile = new Schema::IfcAlignmentVertical(IfcParse::IfcGlobalId(), nullptr, std::string("Vertical Alignment"), boost::none, boost::none, file.getSingle<typename Schema::IfcLocalPlacement>(), nullptr);
// create profile view axis model representation for the vertical profile
// start by defining a gradient curve composed of the vertical curve segments and associated with the horizont composite curve
auto gradient_curve = new Schema::IfcGradientCurve(vertical_curve_segments, false, composite_curve, nullptr);
// the gradient curve is a representation item
typename aggregate_of<typename Schema::IfcRepresentationItem>::ptr profile_representation_items(new aggregate_of<typename Schema::IfcRepresentationItem>());
profile_representation_items->push(gradient_curve);
// create the axis representation subcontext
auto axis_representation_subcontext = new Schema::IfcGeometricRepresentationSubContext(std::string("Axis"), std::string("Model"), geometric_representation_context, boost::none, Schema::IfcGeometricProjectionEnum::IfcGeometricProjection_MODEL_VIEW, boost::none);
file.addEntity(axis_representation_subcontext);
// create the axis representation
auto axis_shape_representation = new Schema::IfcShapeRepresentation(axis_representation_subcontext, std::string("Axis"), std::string("Curve3D"), profile_representation_items);
file.addEntity(axis_shape_representation);
typename aggregate_of<typename Schema::IfcRepresentation>::ptr vertical_representations(new aggregate_of<typename Schema::IfcRepresentation>());
vertical_representations->push(axis_shape_representation);
auto vertical_product = new Schema::IfcProductDefinitionShape(std::string("Vertical product definition shape"), boost::none, vertical_representations);
auto vertical_profile = new Schema::IfcAlignmentVertical(IfcParse::IfcGlobalId(), nullptr, std::string("Vertical Alignment"), boost::none, boost::none, local_placement, vertical_product);
file.addEntity(vertical_profile);
// for the business logic, nest the individual vertical curve segments with the vertical alignment
auto nests_vertical_segments = new Schema::IfcRelNests(IfcParse::IfcGlobalId(), nullptr, boost::none, std::string("Nests vertical alignment segments with vertical alignment"), vertical_profile, vertical_segments);
file.addEntity(nests_vertical_segments);
// the alignment has two representations, a plan view footprint and a 3d axis
typename aggregate_of<typename Schema::IfcRepresentation>::ptr alignment_representations(new aggregate_of<typename Schema::IfcRepresentation>());
alignment_representations->push(footprint_shape_representation); // 2D alignment geometry
alignment_representations->push(axis_shape_representation); // 3D alignment geometry
typename aggregate_of<typename Schema::IfcRepresentationItem>::ptr representation_items2(new aggregate_of<typename Schema::IfcRepresentationItem>());
auto gradient_curve = new Schema::IfcGradientCurve(vertical_curve_segments, false, composite_curve, nullptr);
representation_items2->push(gradient_curve);
auto shape_representation_3D = new Schema::IfcShapeRepresentation(representation_subcontext, std::string("Axis"), std::string("Curve3D"), representation_items2);
file.addEntity(shape_representation_3D);
typename aggregate_of<typename Schema::IfcRepresentation>::ptr representations(new aggregate_of<typename Schema::IfcRepresentation>());
representations->push(shape_representation_2D); // 2D alignment geometry
representations->push(shape_representation_3D); // 3D alignment geometry
auto alignment_product = new Schema::IfcProductDefinitionShape(std::string("Alignment Product Definition Shape"), boost::none, representations);
// create the alignment
auto alignment_product = new Schema::IfcProductDefinitionShape(std::string("Alignment Product Definition Shape"), boost::none, alignment_representations);
auto local_placement = site->ObjectPlacement();
if (!local_placement)
{
local_placement = file.addLocalPlacement();
}
auto alignment = new Schema::IfcAlignment(IfcParse::IfcGlobalId(), nullptr, std::string("Example Alignment"), boost::none, boost::none, local_placement, alignment_product, boost::none);
file.addEntity(alignment);