void OpenCascadeBasedSerializer::write(const IfcGeom::BRepElement<real_t>* o) {
for (IfcGeom::IfcRepresentationShapeItems::const_iterator it = o->geometry().begin(); it != o->geometry().end(); ++ it) {
gp_GTrsf gtrsf = it->Placement();
const gp_Trsf& o_trsf = o->transformation().data();
gtrsf.PreMultiply(o_trsf);
if (o->geometry().settings().get(IfcGeom::IteratorSettings::CONVERT_BACK_UNITS)) {
gp_Trsf scale;
scale.SetScaleFactor(1.0 / o->geometry().settings().unit_magnitude());
gtrsf.PreMultiply(scale);
}
const TopoDS_Shape& s = it->Shape();
bool trsf_valid = false;
gp_Trsf trsf;
try {
trsf = gtrsf.Trsf();
trsf_valid = true;
} catch (...) {}
const TopoDS_Shape moved_shape = trsf_valid
? BRepBuilderAPI_Transform(s, trsf, true).Shape()
: BRepBuilderAPI_GTransform(s, gtrsf, true).Shape();
writeShape(moved_shape);
}
}
bool IfcGeom::Kernel::convert(const IfcSchema::IfcDerivedProfileDef* l, TopoDS_Shape& face) {
TopoDS_Face f;
gp_Trsf2d trsf2d;
if (convert_face(l->ParentProfile(), f) && IfcGeom::Kernel::convert(l->Operator(), trsf2d)) {
gp_Trsf trsf = trsf2d;
face = TopoDS::Face(BRepBuilderAPI_Transform(f, trsf));
return true;
} else {
return false;
}
}
void grivySerializer::writeShapeModel(const IfcGeomObjects::IfcGeomShapeModelObject* o) {
IfcGeom::ShapeList new_topo_shapes;
for (IfcGeom::ShapeList::const_iterator it = o->mesh->begin(); it != o->mesh->end(); ++ it) { //iterate over shapelist
gp_GTrsf gtrsf = *it->first; // Read specific transformation
gtrsf.PreMultiply(o->trsf); // Read+apply common transformation
const TopoDS_Shape& s = *it->second; // Read TopoDS_Shape
bool trsf_valid = false;
gp_Trsf trsf;
try {
trsf = gtrsf.Trsf(); // Test transformation
trsf_valid = true; // Check when succesfull
} catch (...) {}
// Do Boolean ops here? no
const TopoDS_Shape moved_shape = trsf_valid
? BRepBuilderAPI_Transform(s, trsf, true).Shape() // Valid transfmation
: BRepBuilderAPI_GTransform(s, gtrsf, true).Shape(); // Invalid transfmation
// Use to recreate IfcGeomShapeModelObject o using moved_shape
IfcGeom::LocationShape* new_loc_shape;
new_loc_shape = new IfcGeom::LocationShape(>rsf,&moved_shape); //moved_shape / s?
new_topo_shapes.push_back(*new_loc_shape); // store in new_shapes
}
IfcGeomObjects::IfcRepresentationShapeModel* rep_shape;
rep_shape = new IfcGeomObjects::IfcRepresentationShapeModel(o->mesh->getId(),new_topo_shapes);
IfcGeomObjects::IfcGeomShapeModelObject* new_o;
new_o = new IfcGeomObjects::IfcGeomShapeModelObject(o->id,o->parent_id,o->name,o->type,o->guid,o->trsf,rep_shape);
////IfcGeomObjects::IfcGeomShapeModelObject(
//// Convert to BRep
//IfcGeomObjects::IfcGeomBrepDataObject* brep_object;
//brep_object = new IfcGeomObjects::IfcGeomBrepDataObject(*o);
//brep_object->mesh->brep_data;
//// Convert to triangulated BRep
IfcGeomObjects::IfcGeomObject* geom_object;
geom_object = new IfcGeomObjects::IfcGeomObject(*new_o);
//// Write CityGML
writeTesselated(geom_object);
}
bool IfcGeom::Kernel::convert(const IfcSchema::IfcRectangularPyramid* l, TopoDS_Shape& shape) {
const double dx = l->XLength() * getValue(GV_LENGTH_UNIT);
const double dy = l->YLength() * getValue(GV_LENGTH_UNIT);
const double dz = l->Height() * getValue(GV_LENGTH_UNIT);
BRepPrimAPI_MakeWedge builder(dx, dz, dy, dx / 2., dy / 2., dx / 2., dy / 2.);
gp_Trsf trsf1, trsf2;
trsf2.SetValues(
1, 0, 0, 0,
0, 0, 1, 0,
0, 1, 0, 0
#if OCC_VERSION_HEX < 0x60800
, Precision::Angular(), Precision::Confusion()
#endif
);
IfcGeom::Kernel::convert(l->Position(), trsf1);
shape = BRepBuilderAPI_Transform(builder.Solid(), trsf1 * trsf2);
return true;
}
QString Dr=*(parameterList["PARIMD0"]);
x=LVPS_Utility::ToDouble(Dr);
Dr=*(parameterList["PARIMD1"]);
y=LVPS_Utility::ToDouble(Dr);
Dr=*(parameterList["PARIMD2"]);
double length=LVPS_Utility::ToDouble(Dr);
Dr=*(parameterList["PARIMD3"]);
double con=LVPS_Utility::ToDouble(Dr);
gp_Pnt A=gp_Pnt(x+length/2,y,0);
gp_Pnt B=gp_Pnt(x-length/2,y,0);
TopoDS_Edge aEdge1 = BRepBuilderAPI_MakeEdge(A , B);
Shape = BRepBuilderAPI_MakeWire(aEdge1);
gp_Trsf trsf;
trsf.SetRotation(gp_Ax1(gp_Pnt(x,y,0),gp_Dir(0,0,1)),con);
Shape = BRepBuilderAPI_Transform(Shape,trsf);
myAISShape = new AIS_Shape (Shape);
myAISShape->SetMaterial (Graphic3d_NOM_PLASTIC);
SetColor(myAISShape);
return 0;
};
LVPS_GraphicModel* LVPS_Lined::Clone()
{
return (LVPS_GraphicModel*)(new LVPS_Lined());
}
void SvgSerializer::write(const IfcGeom::BRepElement<double>* o) {
IfcSchema::IfcBuildingStorey* storey = 0;
IfcSchema::IfcObjectDefinition* obdef = static_cast<IfcSchema::IfcObjectDefinition*>(file->entityById(o->id()));
#ifndef USE_IFC4
typedef IfcSchema::IfcRelDecomposes decomposition_element;
#else
typedef IfcSchema::IfcRelAggregates decomposition_element;
#endif
while (true) {
// Iterate over the decomposing element to find the parent IfcBuildingStorey
decomposition_element::list::ptr decomposes = obdef->Decomposes();
if (!decomposes->size()) {
if (obdef->is(IfcSchema::Type::IfcElement)) {
IfcSchema::IfcRelContainedInSpatialStructure::list::ptr containment = ((IfcSchema::IfcElement*)obdef)->ContainedInStructure();
if (!containment->size()) {
break;
}
for (IfcSchema::IfcRelContainedInSpatialStructure::list::it it = containment->begin(); it != containment->end(); ++it) {
IfcSchema::IfcRelContainedInSpatialStructure* container = *it;
if (container->RelatingStructure() != obdef) {
obdef = container->RelatingStructure();
}
}
} else {
break;
}
} else {
for (decomposition_element::list::it it = decomposes->begin(); it != decomposes->end(); ++it) {
decomposition_element* decompose = *it;
if (decompose->RelatingObject() != obdef) {
obdef = decompose->RelatingObject();
}
}
}
if (obdef->is(IfcSchema::Type::IfcBuildingStorey)) {
storey = static_cast<IfcSchema::IfcBuildingStorey*>(obdef);
break;
}
}
if (!storey) return;
path_object& p = start_path(storey, nameElement(o));
for (IfcGeom::IfcRepresentationShapeItems::const_iterator it = o->geometry().begin(); it != o->geometry().end(); ++ it) {
gp_GTrsf gtrsf = it->Placement();
gp_Trsf o_trsf;
const std::vector<double>& matrix = o->transformation().matrix().data();
o_trsf.SetValues(
matrix[0], matrix[3], matrix[6], matrix[ 9],
matrix[1], matrix[4], matrix[7], matrix[10],
matrix[2], matrix[5], matrix[8], matrix[11]
#if OCC_VERSION_HEX < 0x60800
, Precision::Angular(), Precision::Confusion()
#endif
);
gtrsf.PreMultiply(o_trsf);
const TopoDS_Shape& s = it->Shape();
bool trsf_valid = false;
gp_Trsf trsf;
try {
trsf = gtrsf.Trsf();
trsf_valid = true;
} catch (...) {}
const TopoDS_Shape moved_shape = trsf_valid
? BRepBuilderAPI_Transform(s, trsf, true).Shape()
: BRepBuilderAPI_GTransform(s, gtrsf, true).Shape();
const double inf = std::numeric_limits<double>::infinity();
double zmin = inf;
double zmax = -inf;
{TopExp_Explorer exp(moved_shape, TopAbs_VERTEX);
for (; exp.More(); exp.Next()) {
const TopoDS_Vertex& vertex = TopoDS::Vertex(exp.Current());
gp_Pnt pnt = BRep_Tool::Pnt(vertex);
if (pnt.Z() < zmin) { zmin = pnt.Z(); }
if (pnt.Z() > zmax) { zmax = pnt.Z(); }
}}
if (section_height) {
if (zmin > section_height || zmax < section_height) continue;
} else {
if (zmin == inf || (zmax - zmin) < 1.) continue;
}
const double cut_z = section_height.get_value_or(zmin + 1.);
// Create a horizontal cross section 1 meter above the bottom point of the shape
TopoDS_Shape result = BRepAlgoAPI_Section(moved_shape, gp_Pln(gp_Pnt(0, 0, cut_z), gp::DZ()));
Handle(TopTools_HSequenceOfShape) edges = new TopTools_HSequenceOfShape();
Handle(TopTools_HSequenceOfShape) wires = new TopTools_HSequenceOfShape();
{TopExp_Explorer exp(result, TopAbs_EDGE);
for (; exp.More(); exp.Next()) {
edges->Append(exp.Current());
}}
ShapeAnalysis_FreeBounds::ConnectEdgesToWires(edges, 1e-5, false, wires);
gp_Pnt prev;
for (int i = 1; i <= wires->Length(); ++i) {
const TopoDS_Wire& wire = TopoDS::Wire(wires->Value(i));
write(p, wire);
}
}
}
bool IfcGeom::Kernel::convert(const IfcSchema::IfcSurfaceCurveSweptAreaSolid* l, TopoDS_Shape& shape) {
gp_Trsf directrix, position;
TopoDS_Shape face;
TopoDS_Wire wire, section;
if (!l->ReferenceSurface()->is(IfcSchema::Type::IfcPlane)) {
Logger::Message(Logger::LOG_WARNING, "Reference surface not supported", l->ReferenceSurface()->entity);
return false;
}
if (!IfcGeom::Kernel::convert(l->Position(), position) ||
!convert_face(l->SweptArea(), face) ||
!convert_wire(l->Directrix(), wire) ) {
return false;
}
gp_Pln pln;
gp_Pnt directrix_origin;
gp_Vec directrix_tangent;
bool directrix_on_plane = true;
IfcGeom::Kernel::convert((IfcSchema::IfcPlane*) l->ReferenceSurface(), pln);
// As per Informal propositions 2: The Directrix shall lie on the ReferenceSurface.
// This is not always the case with the test files in the repository. I am not sure
// how to deal with this and whether my interpretation of the propositions is
// correct. However, if it has been asserted that the vertices of the directrix do
// not conform to the ReferenceSurface, the ReferenceSurface is ignored.
{
for (TopExp_Explorer exp(wire, TopAbs_VERTEX); exp.More(); exp.Next()) {
if (pln.Distance(BRep_Tool::Pnt(TopoDS::Vertex(exp.Current()))) > ALMOST_ZERO) {
directrix_on_plane = false;
Logger::Message(Logger::LOG_WARNING, "The Directrix does not lie on the ReferenceSurface", l->entity);
break;
}
}
}
{
TopExp_Explorer exp(wire, TopAbs_EDGE);
TopoDS_Edge edge = TopoDS::Edge(exp.Current());
double u0, u1;
Handle(Geom_Curve) crv = BRep_Tool::Curve(edge, u0, u1);
crv->D1(u0, directrix_origin, directrix_tangent);
}
if (pln.Axis().Direction().IsNormal(directrix_tangent, Precision::Approximation()) && directrix_on_plane) {
directrix.SetTransformation(gp_Ax3(directrix_origin, directrix_tangent, pln.Axis().Direction()), gp::XOY());
} else {
directrix.SetTransformation(gp_Ax3(directrix_origin, directrix_tangent), gp::XOY());
}
face = BRepBuilderAPI_Transform(face, directrix);
// NB: Note that StartParam and EndParam param are ignored and the assumption is
// made that the parametric range over which to be swept matches the IfcCurve in
// its entirety.
BRepOffsetAPI_MakePipeShell builder(wire);
{ TopExp_Explorer exp(face, TopAbs_WIRE);
section = TopoDS::Wire(exp.Current());
}
builder.Add(section);
builder.SetTransitionMode(BRepBuilderAPI_RightCorner);
if (directrix_on_plane) {
builder.SetMode(pln.Axis().Direction());
}
builder.Build();
builder.MakeSolid();
shape = builder.Shape();
shape.Move(position);
return true;
}
