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- Make distinction between single shape and list of shapes

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- Store shapes in std::vectors rather than TopoDS_Compounds
- Apply transformation only on triangulated meshes or when processing openings
- Store transformations in a gp_GTrsf to allow arbitrary transformations
- Support IfcCartesianTransformationOperator3DnonUniform
- TODO: Create proper class for ShapeList
- TODO: Carefully check for null pointers returned from IfcGeom::convert_shape()
This commit is contained in:
Thomas Krijnen
2011-10-23 17:11:06 +00:00
parent 8bcb9ffa3e
commit bd79df2be7
17 changed files with 360 additions and 174 deletions
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src/ifcgeom/IfcGeomShapes.cpp
+53 -47
View File
@@ -29,9 +29,12 @@
#include <gp_Pnt2d.hxx>
#include <gp_Vec2d.hxx>
#include <gp_Dir2d.hxx>
#include <gp_Mat.hxx>
#include <gp_Mat2d.hxx>
#include <gp_GTrsf.hxx>
#include <gp_GTrsf2d.hxx>
#include <gp_Trsf.hxx>
#include <gp_Trsf2d.hxx>
#include <gp_Mat.hxx>
#include <gp_Ax3.hxx>
#include <gp_Ax2d.hxx>
#include <gp_Pln.hxx>
@@ -88,21 +91,22 @@ bool IfcGeom::convert(const Ifc2x3::IfcExtrudedAreaSolid::ptr l, TopoDS_Shape& s
shape.Move(trsf);
return ! shape.IsNull();
}
bool IfcGeom::convert(const Ifc2x3::IfcFacetedBrep::ptr l, TopoDS_Shape& shape) {
return IfcGeom::convert_shape(l->Outer(),shape);
bool IfcGeom::convert(const Ifc2x3::IfcFacetedBrep::ptr l, ShapeList& shape) {
TopoDS_Shape s;
if ( const TopoDS_Shape* shape_id = IfcGeom::convert_shape(l->Outer(),s) ) {
shape.push_back(LocationShape(new gp_GTrsf(),shape_id));
return true;
}
return false;
}
bool IfcGeom::convert(const Ifc2x3::IfcFaceBasedSurfaceModel::ptr l, TopoDS_Shape& shape) {
bool IfcGeom::convert(const Ifc2x3::IfcFaceBasedSurfaceModel::ptr l, ShapeList& shapes) {
Ifc2x3::IfcConnectedFaceSet::list facesets = l->FbsmFaces();
BRep_Builder builder;
TopoDS_Compound c;
builder.MakeCompound(c);
for( Ifc2x3::IfcConnectedFaceSet::it it = facesets->begin(); it != facesets->end(); ++ it ) {
TopoDS_Shape s;
if ( IfcGeom::convert_shape(*it,s) ) {
builder.Add(c,s);
if ( const TopoDS_Shape* shape_id = IfcGeom::convert_shape(*it,s) ) {
shapes.push_back(LocationShape(new gp_GTrsf(),shape_id));
}
}
shape = c;
return true;
}
bool IfcGeom::convert(const Ifc2x3::IfcHalfSpaceSolid::ptr l, TopoDS_Shape& shape) {
@@ -128,24 +132,20 @@ bool IfcGeom::convert(const Ifc2x3::IfcPolygonalBoundedHalfSpace::ptr l, TopoDS_
if ( ! IfcGeom::convert_wire(l->PolygonalBoundary(),wire) || ! wire.Closed() ) return false;
gp_Trsf trsf;
convert(l->Position(),trsf);
TopoDS_Shape extrusion = BRepPrimAPI_MakePrism(BRepBuilderAPI_MakeFace(wire),gp_Vec(0,0,20000.0));
gp_Trsf down; down.SetTranslation(gp_Vec(0,0,-10000.0));
TopoDS_Shape extrusion = BRepPrimAPI_MakePrism(BRepBuilderAPI_MakeFace(wire),gp_Vec(0,0,200.0));
gp_Trsf down; down.SetTranslation(gp_Vec(0,0,-100.0));
extrusion.Move(down*trsf);
shape = BRepAlgoAPI_Cut(extrusion,halfspace);
return true;
}
bool IfcGeom::convert(const Ifc2x3::IfcShellBasedSurfaceModel::ptr l, TopoDS_Shape& shape) {
bool IfcGeom::convert(const Ifc2x3::IfcShellBasedSurfaceModel::ptr l, ShapeList& shapes) {
IfcUtil::IfcAbstractSelect::list shells = l->SbsmBoundary();
BRep_Builder builder;
TopoDS_Compound c;
builder.MakeCompound(c);
for( IfcUtil::IfcAbstractSelect::it it = shells->begin(); it != shells->end(); ++ it ) {
TopoDS_Shape s;
if ( IfcGeom::convert_shape(*it,s) ) {
builder.Add(c,s);
if ( const TopoDS_Shape* shape_id = IfcGeom::convert_shape(*it,s) ) {
shapes.push_back(LocationShape(new gp_GTrsf(),shape_id));
}
}
shape = c;
return true;
}
bool IfcGeom::convert(const Ifc2x3::IfcBooleanClippingResult::ptr l, TopoDS_Shape& shape) {
@@ -200,47 +200,53 @@ bool IfcGeom::convert(const Ifc2x3::IfcConnectedFaceSet::ptr l, TopoDS_Shape& sh
} catch(...) {}
return true;
}
bool IfcGeom::convert(const Ifc2x3::IfcMappedItem::ptr l, TopoDS_Shape& shape) {
gp_Trsf trsf1;
bool IfcGeom::convert(const Ifc2x3::IfcMappedItem::ptr l, ShapeList& shapes) {
gp_GTrsf gtrsf;
Ifc2x3::IfcCartesianTransformationOperator::ptr transform = l->MappingTarget();
if ( transform->is(Ifc2x3::Type::IfcCartesianTransformationOperator2DnonUniform) ||
transform->is(Ifc2x3::Type::IfcCartesianTransformationOperator3DnonUniform) ) {
// Not implemented
return false;
} else if ( transform->is(Ifc2x3::Type::IfcCartesianTransformationOperator3D) ) {
if ( transform->is(Ifc2x3::Type::IfcCartesianTransformationOperator3DnonUniform) ) {
IfcGeom::convert(reinterpret_pointer_cast<Ifc2x3::IfcCartesianTransformationOperator,
Ifc2x3::IfcCartesianTransformationOperator3D>(transform),trsf1);
Ifc2x3::IfcCartesianTransformationOperator3DnonUniform>(transform),gtrsf);
} else if ( transform->is(Ifc2x3::Type::IfcCartesianTransformationOperator2DnonUniform) ) {
return false;
} else if ( transform->is(Ifc2x3::Type::IfcCartesianTransformationOperator3D) ) {
gp_Trsf trsf;
IfcGeom::convert(reinterpret_pointer_cast<Ifc2x3::IfcCartesianTransformationOperator,
Ifc2x3::IfcCartesianTransformationOperator3D>(transform),trsf);
gtrsf = trsf;
} else if ( transform->is(Ifc2x3::Type::IfcCartesianTransformationOperator2D) ) {
gp_Trsf2d trsf1_2d;
gp_Trsf2d trsf_2d;
IfcGeom::convert(reinterpret_pointer_cast<Ifc2x3::IfcCartesianTransformationOperator,
Ifc2x3::IfcCartesianTransformationOperator2D>(transform),trsf1_2d);
trsf1 = trsf1_2d;
Ifc2x3::IfcCartesianTransformationOperator2D>(transform),trsf_2d);
gtrsf = (gp_Trsf) trsf_2d;
}
Ifc2x3::IfcRepresentationMap::ptr map = l->MappingSource();
Ifc2x3::IfcAxis2Placement placement = map->MappingOrigin();
gp_Trsf trsf2;
gp_Trsf trsf;
if (placement->is(Ifc2x3::Type::IfcAxis2Placement3D)) {
IfcGeom::convert((Ifc2x3::IfcAxis2Placement3D*)placement,trsf2);
IfcGeom::convert((Ifc2x3::IfcAxis2Placement3D*)placement,trsf);
} else {
gp_Trsf2d trsf2_2d;
IfcGeom::convert((Ifc2x3::IfcAxis2Placement2D*)placement,trsf2_2d);
trsf2 = trsf2_2d;
gp_Trsf2d trsf_2d;
IfcGeom::convert((Ifc2x3::IfcAxis2Placement2D*)placement,trsf_2d);
trsf = trsf_2d;
}
if ( ! IfcGeom::convert_shape(map->MappedRepresentation(),shape) ) return false;
shape = shape.Moved(trsf2 * trsf1);
return !shape.IsNull();
gtrsf.Multiply(trsf);
const unsigned int previous_size = (const unsigned int) shapes.size();
bool b = IfcGeom::convert_shapes(map->MappedRepresentation(),shapes);
for ( unsigned int i = previous_size; i < shapes.size(); ++ i ) {
shapes[i].first->Multiply(gtrsf);
}
return b;
}
bool IfcGeom::convert(const Ifc2x3::IfcShapeRepresentation::ptr l, TopoDS_Shape& shape) {
bool IfcGeom::convert(const Ifc2x3::IfcShapeRepresentation::ptr l, ShapeList& shapes) {
Ifc2x3::IfcRepresentationItem::list items = l->Items();
if ( ! items->Size() ) return false;
BRep_Builder builder;
TopoDS_Compound c;
builder.MakeCompound(c);
for ( Ifc2x3::IfcRepresentationItem::it it = items->begin(); it != items->end(); ++ it ) {
TopoDS_Shape s;
if ( ! IfcGeom::convert_shape(*it,s)) continue;
builder.Add(c,s);
if ( IfcGeom::is_shape_collection(*it) ) IfcGeom::convert_shapes(*it,shapes);
else {
TopoDS_Shape s;
if ( const TopoDS_Shape* shape_id = IfcGeom::convert_shape(*it,s))
shapes.push_back(LocationShape(new gp_GTrsf(),shape_id));
}
}
shape = c;
return !shape.IsNull();
return true;
}