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Geometry serialization (#71)

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Serialize geometry to IFC instances directly from a TopoDS_Shape
This commit is contained in:
Thomas Krijnen
2016-06-22 15:03:18 +02:00
committed by GitHub
parent 90ad3a4a93
commit aebb9e324b
18 changed files with 1161 additions and 206 deletions
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src/examples/CMakeLists.txt
+4
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@@ -24,3 +24,7 @@ set_target_properties(IfcParseExamples PROPERTIES FOLDER Examples)
ADD_EXECUTABLE(IfcOpenHouse IfcOpenHouse.cpp)
TARGET_LINK_LIBRARIES(IfcOpenHouse ${IFCOPENSHELL_LIBRARIES} ${OPENCASCADE_LIBRARIES})
set_target_properties(IfcOpenHouse PROPERTIES FOLDER Examples)
ADD_EXECUTABLE(IfcAdvancedHouse IfcAdvancedHouse.cpp)
TARGET_LINK_LIBRARIES(IfcAdvancedHouse ${IFCLIBS} ${OPENCASCADE_LIBRARIES})
set_target_properties(IfcAdvancedHouse PROPERTIES FOLDER Examples)
src/examples/IfcAdvancedHouse.cpp
+185
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@@ -0,0 +1,185 @@
/********************************************************************************
* *
* This file is part of IfcOpenShell. *
* *
* IfcOpenShell is free software: you can redistribute it and/or modify *
* it under the terms of the Lesser GNU General Public License as published by *
* the Free Software Foundation, either version 3.0 of the License, or *
* (at your option) any later version. *
* *
* IfcOpenShell is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* Lesser GNU General Public License for more details. *
* *
* You should have received a copy of the Lesser GNU General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>. *
* *
********************************************************************************/
#include <string>
#include <iostream>
#include <fstream>
#include <TColgp_Array2OfPnt.hxx>
#include <TColgp_Array1OfPnt.hxx>
#include <TColStd_Array1OfReal.hxx>
#include <TColStd_Array1OfInteger.hxx>
#include <Geom_BSplineSurface.hxx>
#include <BRepBuilderAPI_MakeFace.hxx>
#include <BRepBuilderAPI_NurbsConvert.hxx>
#include <BRepPrimAPI_MakeBox.hxx>
#include <BRepPrimAPI_MakeSphere.hxx>
#include <BRepAlgoAPI_Cut.hxx>
#include <Standard_Version.hxx>
#ifdef USE_IFC4
#include "../ifcparse/Ifc4.h"
#else
#include "../ifcparse/Ifc2x3.h"
#endif
#include "../ifcparse/IfcUtil.h"
#include "../ifcparse/IfcHierarchyHelper.h"
#include "../ifcgeom/IfcGeom.h"
#if USE_VLD
#include <vld.h>
#endif
// Some convenience typedefs and definitions.
typedef std::string S;
typedef IfcParse::IfcGlobalId guid;
typedef std::pair<double, double> XY;
boost::none_t const null = boost::none;
// The creation of Nurbs-surface for the IfcSite mesh, to be implemented lateron
void createGroundShape(TopoDS_Shape& shape);
int main() {
// The IfcHierarchyHelper is a subclass of the regular IfcFile that provides several
// convenience functions for working with geometry in IFC files.
IfcHierarchyHelper file;
file.header().file_name().name("IfcAdvancedHouse.ifc");
IfcSchema::IfcBuilding* building = file.addBuilding();
// By adding a building, a hierarchy has been automatically created that consists of the following
// structure: IfcProject > IfcSite > IfcBuilding
// Lateron changing the name of the IfcProject can be done by obtaining a reference to the
// project, which has been created automatically.
file.getSingle<IfcSchema::IfcProject>()->setName("IfcOpenHouse");
// To demonstrate the ability to serialize arbitrary opencascade solids a building envelope is
// constructed by applying boolean operations. Naturally, in IFC, building elements should be
// modeled separately, with rich parametric and relational semantics. Creating geometry in this
// way does not preserve any history and is merely a demonstration of technical capabilities.
TopoDS_Shape outer = BRepPrimAPI_MakeBox(gp_Pnt(-5000., -180., -2000.), gp_Pnt(5000., 5180., 3000.)).Shape();
TopoDS_Shape inner = BRepPrimAPI_MakeBox(gp_Pnt(-4640., 180., 0.), gp_Pnt(4640., 4820., 3000.)).Shape();
TopoDS_Shape window1 = BRepPrimAPI_MakeBox(gp_Pnt(-5000., -180., 400.), gp_Pnt( 500., 1180., 2000.)).Shape();
TopoDS_Shape window2 = BRepPrimAPI_MakeBox(gp_Pnt( 2070., -180., 400.), gp_Pnt(3930., 180., 2000.)).Shape();
TopoDS_Shape building_shell = BRepAlgoAPI_Cut(
BRepAlgoAPI_Cut(
BRepAlgoAPI_Cut(outer, inner),
window1
),
window2
);
// Since the solid consists only of planar faces and straight edges it can be serialized as an
// IfcFacetedBRep. If it would not be a polyhedron, serialise() can only be successful when linked
// to the IFC4 model and with `advanced` set to `true` which introduces IfcAdvancedFace. It would
// return `0` otherwise.
IfcSchema::IfcProductDefinitionShape* building_shape = IfcGeom::serialise(building_shell, false);
file.addEntity(building_shape);
IfcSchema::IfcRepresentation* rep = *building_shape->Representations()->begin();
rep->setContextOfItems(file.getRepresentationContext("model"));
building->setRepresentation(building_shape);
// A pale white colour is assigned to the building.
file.setSurfaceColour(
building_shape, 0.75, 0.73, 0.68);
// For the ground mesh of the IfcSite we will use a Nurbs surface created in Open Cascade. Only
// in IFC4 the surface can be directly serialized. In IFC2X3 the it will have to be tesselated.
TopoDS_Shape shape;
createGroundShape(shape);
IfcSchema::IfcProductDefinitionShape* ground_representation = IfcGeom::serialise(shape, true);
if (!ground_representation) {
ground_representation = IfcGeom::tesselate(shape, 100.);
}
file.getSingle<IfcSchema::IfcSite>()->setRepresentation(ground_representation);
IfcSchema::IfcRepresentation::list::ptr ground_reps = file.getSingle<IfcSchema::IfcSite>()->Representation()->Representations();
for (IfcSchema::IfcRepresentation::list::it it = ground_reps->begin(); it != ground_reps->end(); ++it) {
(*it)->setContextOfItems(file.getRepresentationContext("Model"));
}
file.addEntity(ground_representation);
file.setSurfaceColour(ground_representation, 0.15, 0.25, 0.05);
/*
// Note that IFC lacks elementary surfaces that STEP does have, such as spherical_surface.
// BRepBuilderAPI_NurbsConvert can be used to serialize such surfaces as nurbs surfaces.
TopoDS_Shape sphere = BRepPrimAPI_MakeSphere(gp_Pnt(), 1000.).Shape();
IfcSchema::IfcProductDefinitionShape* sphere_representation = IfcGeom::serialise(sphere, true);
if (S(IfcSchema::Identifier) == "IFC4") {
sphere = BRepBuilderAPI_NurbsConvert(sphere, true).Shape();
sphere_representation = IfcGeom::serialise(sphere, true);
}
*/
// Finally create a file stream for our output and write the IFC file to it.
std::ofstream f("IfcAdvancedHouse.ifc");
f << file;
}
void createGroundShape(TopoDS_Shape& shape) {
TColgp_Array2OfPnt cv (0, 4, 0, 4);
cv.SetValue(0, 0, gp_Pnt(-10000, -10000, -4130));
cv.SetValue(0, 1, gp_Pnt(-10000, -4330, -4130));
cv.SetValue(0, 2, gp_Pnt(-10000, 0, -5130));
cv.SetValue(0, 3, gp_Pnt(-10000, 4330, -7130));
cv.SetValue(0, 4, gp_Pnt(-10000, 10000, -7130));
cv.SetValue(1, 0, gp_Pnt( -3330, -10000, -5130));
cv.SetValue(1, 1, gp_Pnt( -7670, -3670, 5000));
cv.SetValue(1, 2, gp_Pnt( -9000, 0, 1000));
cv.SetValue(1, 3, gp_Pnt( -7670, 7670, 6000));
cv.SetValue(1, 4, gp_Pnt( -3330, 10000, -4130));
cv.SetValue(2, 0, gp_Pnt( 0, -10000, -5530));
cv.SetValue(2, 1, gp_Pnt( 0, -3670, 3000));
cv.SetValue(2, 2, gp_Pnt( 0, 0, -12000));
cv.SetValue(2, 3, gp_Pnt( 0, 7670, 1500));
cv.SetValue(2, 4, gp_Pnt( 0, 10000, -4130));
cv.SetValue(3, 0, gp_Pnt( 3330, -10000, -6130));
cv.SetValue(3, 1, gp_Pnt( 7670, -3670, 6000));
cv.SetValue(3, 2, gp_Pnt( 9000, 0, 5000));
cv.SetValue(3, 3, gp_Pnt( 7670, 9000, 7000));
cv.SetValue(3, 4, gp_Pnt( 3330, 10000, -4130));
cv.SetValue(4, 0, gp_Pnt( 10000, -10000, -6130));
cv.SetValue(4, 1, gp_Pnt( 10000, -4330, -5130));
cv.SetValue(4, 2, gp_Pnt( 10000, 0, -4130));
cv.SetValue(4, 3, gp_Pnt( 10000, 4330, -4130));
cv.SetValue(4, 4, gp_Pnt( 10000, 10000, -8130));
TColStd_Array1OfReal knots(0, 1);
knots(0) = 0;
knots(1) = 1;
TColStd_Array1OfInteger mult(0, 1);
mult(0) = 5;
mult(1) = 5;
Handle(Geom_BSplineSurface) surf = new Geom_BSplineSurface(cv, knots, knots, mult, mult, 4, 4);
#if OCC_VERSION_HEX < 0x60502
shape = BRepBuilderAPI_MakeFace(surf);
#else
shape = BRepBuilderAPI_MakeFace(surf, Precision::Confusion());
#endif
}
src/examples/IfcOpenHouse.cpp
+4 -5
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@@ -262,12 +262,11 @@ int main() {
// will be tesselated using the deflection specified.
TopoDS_Shape shape;
createGroundShape(shape);
IfcEntityList::ptr geometrical_entities(new IfcEntityList);
IfcSchema::IfcProductDefinitionShape* ground_representation = IfcGeom::tesselate(shape, 100., geometrical_entities);
IfcSchema::IfcProductDefinitionShape* ground_representation = IfcGeom::tesselate(shape, 100.);
file.getSingle<IfcSchema::IfcSite>()->setRepresentation(ground_representation);
file.addEntities(geometrical_entities);
IfcSchema::IfcShapeRepresentation::list::ptr ground_reps = geometrical_entities->as<IfcSchema::IfcShapeRepresentation>();
for (IfcSchema::IfcShapeRepresentation::list::it it = ground_reps->begin(); it != ground_reps->end(); ++it) {
IfcSchema::IfcRepresentation::list::ptr ground_reps = file.getSingle<IfcSchema::IfcSite>()->Representation()->Representations();
for (IfcSchema::IfcRepresentation::list::it it = ground_reps->begin(); it != ground_reps->end(); ++it) {
(*it)->setContextOfItems(file.getRepresentationContext("Model"));
}
file.setSurfaceColour(ground_representation, 0.15, 0.25, 0.05);
src/ifcgeom/IfcGeom.h
+2 -1
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@@ -300,7 +300,8 @@ public:
};
IfcSchema::IfcProductDefinitionShape* tesselate(TopoDS_Shape& shape, double deflection, IfcEntityList::ptr es);
IfcSchema::IfcProductDefinitionShape* tesselate(const TopoDS_Shape& shape, double deflection);
IfcSchema::IfcProductDefinitionShape* serialise(const TopoDS_Shape& shape, bool advanced);
}
#endif
src/ifcgeom/IfcGeomCurves.cpp
+21 -2
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@@ -144,17 +144,32 @@ bool IfcGeom::Kernel::convert(const IfcSchema::IfcLine* l, Handle(Geom_Curve)& c
#ifdef USE_IFC4
bool IfcGeom::Kernel::convert(const IfcSchema::IfcBSplineCurveWithKnots* l, Handle(Geom_Curve)& curve) {
const bool is_rational = l->is(IfcSchema::Type::IfcRationalBSplineCurveWithKnots);
const IfcSchema::IfcCartesianPoint::list::ptr cps = l->ControlPointsList();
const std::vector<int> mults = l->KnotMultiplicities();
const std::vector<double> knots = l->Knots();
TColgp_Array1OfPnt Poles(0, cps->size() - 1);
TColStd_Array1OfReal Weights(0, cps->size() - 1);
TColStd_Array1OfReal Knots(0, (int)knots.size() - 1);
TColStd_Array1OfInteger Mults(0, (int)mults.size() - 1);
Standard_Integer Degree = l->Degree();
Standard_Boolean Periodic = l->ClosedCurve();
int i;
int i = 0;
if (is_rational) {
IfcSchema::IfcRationalBSplineCurveWithKnots* rl = (IfcSchema::IfcRationalBSplineCurveWithKnots*)l;
std::vector<double> weights = rl->WeightsData();
i = 0;
for (std::vector<double>::const_iterator it = weights.begin(); it != weights.end(); ++it, ++i) {
Weights(i) = *it;
}
}
i = 0;
for (IfcSchema::IfcCartesianPoint::list::it it = cps->begin(); it != cps->end(); ++it, ++i) {
gp_Pnt pnt;
if (!convert(*it, pnt)) return false;
@@ -171,7 +186,11 @@ bool IfcGeom::Kernel::convert(const IfcSchema::IfcBSplineCurveWithKnots* l, Hand
Knots(i) = *it;
}
curve = new Geom_BSplineCurve(Poles, Knots, Mults, Degree, Periodic);
if (is_rational) {
curve = new Geom_BSplineCurve(Poles, Weights, Knots, Mults, Degree, Periodic);
} else {
curve = new Geom_BSplineCurve(Poles, Knots, Mults, Degree, Periodic);
}
return true;
}
#endif
src/ifcgeom/IfcGeomFaces.cpp
+14 -7
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@@ -75,6 +75,7 @@
#include <BRepAlgoAPI_Cut.hxx>
#include <ShapeFix_Edge.hxx>
#include <ShapeFix_Shape.hxx>
#include <ShapeFix_ShapeTolerance.hxx>
#include <ShapeFix_Solid.hxx>
@@ -207,7 +208,8 @@ bool IfcGeom::Kernel::convert(const IfcSchema::IfcFace* l, TopoDS_Shape& face) {
if (face_surface.IsNull()) {
mf = new BRepBuilderAPI_MakeFace(wire);
} else {
mf = new BRepBuilderAPI_MakeFace(face_surface, wire);
/// @todo check necessity of false here
mf = new BRepBuilderAPI_MakeFace(face_surface, wire, false);
}
/* BRepBuilderAPI_FaceError er = mf->Error();
@@ -221,13 +223,18 @@ bool IfcGeom::Kernel::convert(const IfcSchema::IfcFace* l, TopoDS_Shape& face) {
if (mf->IsDone()) {
TopoDS_Face outer_face_bound = mf->Face();
// BRepCheck_Face might raise exceptions in case of face surfaces. Therefore fix orientation regardless.
// In case of (non-planar) face surface, p-curves need to be computed.
// For planar faces, Open Cascade generates p-curves on the fly.
if (!face_surface.IsNull()) {
ShapeFix_Face fix(outer_face_bound);
fix.FixOrientation();
fix.Perform();
outer_face_bound = fix.Face();
} else if (BRepCheck_Face(outer_face_bound).OrientationOfWires() == BRepCheck_BadOrientationOfSubshape) {
TopExp_Explorer exp(outer_face_bound, TopAbs_EDGE);
for (; exp.More(); exp.Next()) {
const TopoDS_Edge& edge = TopoDS::Edge(exp.Current());
ShapeFix_Edge fix_edge;
fix_edge.FixAddPCurve(edge, outer_face_bound, false, getValue(GV_PRECISION));
}
}
if (BRepCheck_Face(outer_face_bound).OrientationOfWires() == BRepCheck_BadOrientationOfSubshape) {
wire.Reverse();
same_sense = !same_sense;
delete mf;
src/ifcgeom/IfcGeomFunctions.cpp
-64
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@@ -720,70 +720,6 @@ double IfcGeom::Kernel::getValue(GeomValue var) const {
return 0;
}
IfcSchema::IfcProductDefinitionShape* IfcGeom::tesselate(TopoDS_Shape& shape, double deflection, IfcEntityList::ptr es) {
BRepMesh_IncrementalMesh(shape, deflection);
IfcSchema::IfcFace::list::ptr faces (new IfcSchema::IfcFace::list);
for (TopExp_Explorer exp(shape, TopAbs_FACE); exp.More(); exp.Next()) {
const TopoDS_Face& face = TopoDS::Face(exp.Current());
TopLoc_Location loc;
Handle(Poly_Triangulation) tri = BRep_Tool::Triangulation(face, loc);
if (! tri.IsNull()) {
const TColgp_Array1OfPnt& nodes = tri->Nodes();
std::vector<IfcSchema::IfcCartesianPoint*> vertices;
for (int i = 1; i <= nodes.Length(); ++i) {
gp_Pnt pnt = nodes(i).Transformed(loc);
std::vector<double> xyz; xyz.push_back(pnt.X()); xyz.push_back(pnt.Y()); xyz.push_back(pnt.Z());
IfcSchema::IfcCartesianPoint* cpnt = new IfcSchema::IfcCartesianPoint(xyz);
vertices.push_back(cpnt);
es->push(cpnt);
}
const Poly_Array1OfTriangle& triangles = tri->Triangles();
for (int i = 1; i <= triangles.Length(); ++ i) {
int n1, n2, n3;
triangles(i).Get(n1, n2, n3);
IfcSchema::IfcCartesianPoint::list::ptr points (new IfcSchema::IfcCartesianPoint::list);
points->push(vertices[n1-1]);
points->push(vertices[n2-1]);
points->push(vertices[n3-1]);
IfcSchema::IfcPolyLoop* loop = new IfcSchema::IfcPolyLoop(points);
IfcSchema::IfcFaceOuterBound* bound = new IfcSchema::IfcFaceOuterBound(loop, face.Orientation() != TopAbs_REVERSED);
IfcSchema::IfcFaceBound::list::ptr bounds (new IfcSchema::IfcFaceBound::list);
bounds->push(bound);
IfcSchema::IfcFace* face2 = new IfcSchema::IfcFace(bounds);
es->push(loop);
es->push(bound);
es->push(face2);
faces->push(face2);
}
}
}
IfcSchema::IfcOpenShell* shell = new IfcSchema::IfcOpenShell(faces);
IfcSchema::IfcConnectedFaceSet::list::ptr shells (new IfcSchema::IfcConnectedFaceSet::list);
shells->push(shell);
IfcSchema::IfcFaceBasedSurfaceModel* surface_model = new IfcSchema::IfcFaceBasedSurfaceModel(shells);
IfcSchema::IfcRepresentation::list::ptr reps (new IfcSchema::IfcRepresentation::list);
IfcSchema::IfcRepresentationItem::list::ptr items (new IfcSchema::IfcRepresentationItem::list);
items->push(surface_model);
IfcSchema::IfcShapeRepresentation* rep = new IfcSchema::IfcShapeRepresentation(
0, std::string("Facetation"), std::string("SurfaceModel"), items);
reps->push(rep);
IfcSchema::IfcProductDefinitionShape* shapedef = new IfcSchema::IfcProductDefinitionShape(boost::none, boost::none, reps);
es->push(shell);
es->push(surface_model);
es->push(rep);
es->push(shapedef);
return shapedef;
}
// Returns the vertex part of an TopoDS_Edge edge that is not TopoDS_Vertex vertex
TopoDS_Vertex find_other(const TopoDS_Edge& edge, const TopoDS_Vertex& vertex) {
TopExp_Explorer exp(edge, TopAbs_VERTEX);
src/ifcgeom/IfcGeomRepresentation.h
+43 -1
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@@ -259,7 +259,8 @@ namespace IfcGeom {
if (num_faces == 0) {
// Edges are only emitted if there are no faces. A mixed representation of faces
// and loose edges is discouraged by the standard. An alternative would be to use
// TopExp::MapShapesAndAncestors() to find edges that do not belong to any face.
// TopExp_Explorer texp(s, TopAbs_EDGE, TopAbs_FACE) to find edges that do not
// belong to any face.
for (TopExp_Explorer texp(s, TopAbs_EDGE); texp.More(); texp.Next()) {
BRepAdaptor_Curve crv(TopoDS::Edge(texp.Current()));
GCPnts_QuasiUniformDeflection tessellater(crv, settings().deflection_tolerance());
@@ -267,6 +268,40 @@ namespace IfcGeom {
int start = (int)_verts.size() / 3;
for (int i = 1; i <= n; ++i) {
gp_XYZ p = tessellater.Value(i).XYZ();
/*
// In case you want direction arrows on your edges
double u = tessellater.Parameter(i);
gp_XYZ p2, p3;
gp_Pnt tmp;
gp_Vec tmp2;
crv.D1(u, tmp, tmp2);
gp_Dir d1, d2, d3, d4;
d1 = tmp2;
if (texp.Current().Orientation() == TopAbs_REVERSED) {
d1 = -d1;
}
if (fabs(d1.Z()) < 0.5) {
d2 = d1.Crossed(gp::DZ());
} else {
d2 = d1.Crossed(gp::DY());
}
d3 = d1.XYZ() + d2.XYZ();
d4 = d1.XYZ() - d2.XYZ();
p2 = p - d3.XYZ() / 10.;
p3 = p - d4.XYZ() / 10.;
trsf.Transforms(p2);
trsf.Transforms(p3);
_material_ids.push_back(surface_style_id);
_material_ids.push_back(surface_style_id);
_verts.push_back(static_cast<P>(p2.X()));
_verts.push_back(static_cast<P>(p2.Y()));
_verts.push_back(static_cast<P>(p2.Z()));
_verts.push_back(static_cast<P>(p3.X()));
_verts.push_back(static_cast<P>(p3.Y()));
_verts.push_back(static_cast<P>(p3.Z()));
*/
trsf.Transforms(p);
_material_ids.push_back(surface_style_id);
@@ -278,7 +313,14 @@ namespace IfcGeom {
if (i > 1) {
_edges.push_back(start + i - 2);
_edges.push_back(start + i - 1);
// _edges.push_back(start + 3 * (i - 2) + 2);
// _edges.push_back(start + 3 * (i - 1) + 2);
}
// _edges.push_back(start + 3 * (i - 1) + 0);
// _edges.push_back(start + 3 * (i - 1) + 2);
// _edges.push_back(start + 3 * (i - 1) + 1);
// _edges.push_back(start + 3 * (i - 1) + 2);
}
}
}
src/ifcgeom/IfcGeomSerialisation.cpp
+648
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@@ -0,0 +1,648 @@
#include <Geom_Line.hxx>
#include <Geom_Circle.hxx>
#include <Geom_Ellipse.hxx>
#include <Geom_BSplineCurve.hxx>
#include <Geom_Plane.hxx>
#include <Geom_BSplineSurface.hxx>
#include <Geom_CylindricalSurface.hxx>
#include <BRepTools_WireExplorer.hxx>
#include <TColgp_Array2OfPnt.hxx>
#include <TColStd_Array1OfReal.hxx>
#include <TColStd_Array2OfReal.hxx>
#include <TColStd_Array1OfInteger.hxx>
#include "IfcGeom.h"
template <typename T, typename U>
int convert_to_ifc(const T& t, U*& u, bool /*advanced*/) {
std::vector<double> coords(3);
coords[0] = t.X(); coords[1] = t.Y(); coords[2] = t.Z();
u = new U(coords);
return 1;
}
template <>
int convert_to_ifc(const TopoDS_Vertex& v, IfcSchema::IfcCartesianPoint*& p, bool advanced) {
gp_Pnt pnt = BRep_Tool::Pnt(v);
return convert_to_ifc(pnt, p, advanced);
}
template <>
int convert_to_ifc(const TopoDS_Vertex& v, IfcSchema::IfcVertex*& vertex, bool advanced) {
IfcSchema::IfcCartesianPoint* p;
convert_to_ifc(v, p, advanced);
vertex = new IfcSchema::IfcVertexPoint(p);
return 1;
}
template <>
int convert_to_ifc(const gp_Ax2& a, IfcSchema::IfcAxis2Placement3D*& ax, bool advanced) {
IfcSchema::IfcCartesianPoint* p;
IfcSchema::IfcDirection *x, *z;
if (!(convert_to_ifc(a.Location(), p, advanced) && convert_to_ifc(a.Direction(), z, advanced) && convert_to_ifc(a.XDirection(), x, advanced))) {
return 0;
}
ax = new IfcSchema::IfcAxis2Placement3D(p, z, x);
return 1;
}
template <typename T, typename U>
void opencascade_array_to_vector(T& t, std::vector<U>& u) {
u.reserve(t.Length());
for (int i = t.Lower(); i <= t.Upper(); ++i) {
u.push_back(t.Value(i));
}
}
template <typename T, typename U>
void opencascade_array_to_vector2(T& t, std::vector< std::vector<U> >& u) {
u.reserve(t.RowLength());
for (int j = t.LowerRow(); j <= t.UpperRow(); ++j) {
std::vector<U> v;
v.reserve(t.ColLength());
for (int i = t.LowerCol(); i <= t.UpperCol(); ++i) {
v.push_back(t.Value(j, i));
}
u.push_back(v);
}
}
#ifdef USE_IFC4
IfcSchema::IfcKnotType::IfcKnotType opencascade_knotspec_to_ifc(GeomAbs_BSplKnotDistribution bspline_knot_spec) {
IfcSchema::IfcKnotType::IfcKnotType knot_spec = IfcSchema::IfcKnotType::IfcKnotType_UNSPECIFIED;
if (bspline_knot_spec == GeomAbs_Uniform) {
knot_spec = IfcSchema::IfcKnotType::IfcKnotType_UNIFORM_KNOTS;
} else if (bspline_knot_spec == GeomAbs_QuasiUniform) {
knot_spec = IfcSchema::IfcKnotType::IfcKnotType_QUASI_UNIFORM_KNOTS;
} else if (bspline_knot_spec == GeomAbs_PiecewiseBezier) {
knot_spec = IfcSchema::IfcKnotType::IfcKnotType_PIECEWISE_BEZIER_KNOTS;
}
return knot_spec;
}
#endif
template <>
int convert_to_ifc(const Handle_Geom_Curve& c, IfcSchema::IfcCurve*& curve, bool advanced) {
if (c->DynamicType() == STANDARD_TYPE(Geom_Line)) {
IfcSchema::IfcDirection* d;
IfcSchema::IfcCartesianPoint* p;
Handle_Geom_Line line = Handle_Geom_Line::DownCast(c);
if (!convert_to_ifc(line->Position().Location(), p, advanced)) {
return 0;
}
if (!convert_to_ifc(line->Position().Direction(), d, advanced)) {
return 0;
}
IfcSchema::IfcVector* v = new IfcSchema::IfcVector(d, 1.);
curve = new IfcSchema::IfcLine(p, v);
return 1;
} else if (c->DynamicType() == STANDARD_TYPE(Geom_Circle)) {
IfcSchema::IfcAxis2Placement3D* ax;
Handle_Geom_Circle circle = Handle_Geom_Circle::DownCast(c);
convert_to_ifc(circle->Position(), ax, advanced);
curve = new IfcSchema::IfcCircle(ax, circle->Radius());
return 1;
} else if (c->DynamicType() == STANDARD_TYPE(Geom_Ellipse)) {
IfcSchema::IfcAxis2Placement3D* ax;
Handle_Geom_Ellipse ellipse = Handle_Geom_Ellipse::DownCast(c);
convert_to_ifc(ellipse->Position(), ax, advanced);
curve = new IfcSchema::IfcEllipse(ax, ellipse->MajorRadius(), ellipse->MinorRadius());
return 1;
}
#ifdef USE_IFC4
else if (c->DynamicType() == STANDARD_TYPE(Geom_BSplineCurve)) {
Handle_Geom_BSplineCurve bspline = Handle_Geom_BSplineCurve::DownCast(c);
IfcSchema::IfcCartesianPoint::list::ptr points(new IfcSchema::IfcCartesianPoint::list);
TColgp_Array1OfPnt poles(1, bspline->NbPoles());
bspline->Poles(poles);
for (int i = 1; i <= bspline->NbPoles(); ++i) {
IfcSchema::IfcCartesianPoint* p;
if (!convert_to_ifc(poles.Value(i), p, advanced)) {
return 0;
}
points->push(p);
}
IfcSchema::IfcKnotType::IfcKnotType knot_spec = opencascade_knotspec_to_ifc(bspline->KnotDistribution());
std::vector<int> mults;
std::vector<double> knots;
std::vector<double> weights;
TColStd_Array1OfInteger bspline_mults(1, bspline->NbKnots());
TColStd_Array1OfReal bspline_knots(1, bspline->NbKnots());
TColStd_Array1OfReal bspline_weights(1, bspline->NbPoles());
bspline->Multiplicities(bspline_mults);
bspline->Knots(bspline_knots);
bspline->Weights(bspline_weights);
opencascade_array_to_vector(bspline_mults, mults);
opencascade_array_to_vector(bspline_knots, knots);
opencascade_array_to_vector(bspline_weights, weights);
bool rational = false;
for (std::vector<double>::const_iterator it = weights.begin(); it != weights.end(); ++it) {
if ((*it) != 1.) {
rational = true;
break;
}
}
if (rational) {
curve = new IfcSchema::IfcRationalBSplineCurveWithKnots(
bspline->Degree(),
points,
IfcSchema::IfcBSplineCurveForm::IfcBSplineCurveForm_UNSPECIFIED,
bspline->IsClosed(),
false,
mults,
knots,
knot_spec,
weights
);
} else {
curve = new IfcSchema::IfcBSplineCurveWithKnots(
bspline->Degree(),
points,
IfcSchema::IfcBSplineCurveForm::IfcBSplineCurveForm_UNSPECIFIED,
bspline->IsClosed(),
false,
mults,
knots,
knot_spec
);
}
return 1;
}
#endif
return 0;
}
template <>
int convert_to_ifc(const Handle_Geom_Surface& s, IfcSchema::IfcSurface*& surface, bool advanced) {
if (s->DynamicType() == STANDARD_TYPE(Geom_Plane)) {
Handle_Geom_Plane plane = Handle_Geom_Plane::DownCast(s);
IfcSchema::IfcAxis2Placement3D* place;
/// @todo: Note that the Ax3 is converted to an Ax2 here
if (!convert_to_ifc(plane->Position().Ax2(), place, advanced)) {
return 0;
}
surface = new IfcSchema::IfcPlane(place);
return 1;
}
#ifdef USE_IFC4
else if (s->DynamicType() == STANDARD_TYPE(Geom_CylindricalSurface)) {
Handle_Geom_CylindricalSurface cyl = Handle_Geom_CylindricalSurface::DownCast(s);
IfcSchema::IfcAxis2Placement3D* place;
/// @todo: Note that the Ax3 is converted to an Ax2 here
if (!convert_to_ifc(cyl->Position().Ax2(), place, advanced)) {
return 0;
}
surface = new IfcSchema::IfcCylindricalSurface(place, cyl->Radius());
return 1;
} else if (s->DynamicType() == STANDARD_TYPE(Geom_BSplineSurface)) {
typedef IfcTemplatedEntityListList<IfcSchema::IfcCartesianPoint> points_t;
Handle_Geom_BSplineSurface bspline = Handle_Geom_BSplineSurface::DownCast(s);
points_t::ptr points(new points_t);
TColgp_Array2OfPnt poles(1, bspline->NbUPoles(), 1, bspline->NbVPoles());
bspline->Poles(poles);
for (int i = 1; i <= bspline->NbUPoles(); ++i) {
std::vector<IfcSchema::IfcCartesianPoint*> ps;
ps.reserve(bspline->NbVPoles());
for (int j = 1; j <= bspline->NbVPoles(); ++j) {
IfcSchema::IfcCartesianPoint* p;
if (!convert_to_ifc(poles.Value(i, j), p, advanced)) {
return 0;
}
ps.push_back(p);
}
points->push(ps);
}
IfcSchema::IfcKnotType::IfcKnotType knot_spec_u = opencascade_knotspec_to_ifc(bspline->UKnotDistribution());
IfcSchema::IfcKnotType::IfcKnotType knot_spec_v = opencascade_knotspec_to_ifc(bspline->VKnotDistribution());
if (knot_spec_u != knot_spec_v) {
knot_spec_u = IfcSchema::IfcKnotType::IfcKnotType_UNSPECIFIED;
}
std::vector<int> umults;
std::vector<int> vmults;
std::vector<double> uknots;
std::vector<double> vknots;
std::vector< std::vector<double> > weights;
TColStd_Array1OfInteger bspline_umults(1, bspline->NbUKnots());
TColStd_Array1OfInteger bspline_vmults(1, bspline->NbVKnots());
TColStd_Array1OfReal bspline_uknots(1, bspline->NbUKnots());
TColStd_Array1OfReal bspline_vknots(1, bspline->NbVKnots());
TColStd_Array2OfReal bspline_weights(1, bspline->NbUPoles(), 1, bspline->NbVPoles());
bspline->UMultiplicities(bspline_umults);
bspline->VMultiplicities(bspline_vmults);
bspline->UKnots(bspline_uknots);
bspline->VKnots(bspline_vknots);
bspline->Weights(bspline_weights);
opencascade_array_to_vector(bspline_umults, umults);
opencascade_array_to_vector(bspline_vmults, vmults);
opencascade_array_to_vector(bspline_uknots, uknots);
opencascade_array_to_vector(bspline_vknots, vknots);
opencascade_array_to_vector2(bspline_weights, weights);
bool rational = false;
for (std::vector< std::vector<double> >::const_iterator it = weights.begin(); it != weights.end(); ++it) {
for (std::vector<double>::const_iterator jt = it->begin(); jt != it->end(); ++jt) {
if ((*jt) != 1.) {
rational = true;
break;
}
}
}
if (rational) {
surface = new IfcSchema::IfcRationalBSplineSurfaceWithKnots(
bspline->UDegree(),
bspline->VDegree(),
points,
IfcSchema::IfcBSplineSurfaceForm::IfcBSplineSurfaceForm_UNSPECIFIED,
bspline->IsUClosed(),
bspline->IsVClosed(),
false,
umults,
vmults,
uknots,
vknots,
knot_spec_u,
weights
);
} else {
surface = new IfcSchema::IfcBSplineSurfaceWithKnots(
bspline->UDegree(),
bspline->VDegree(),
points,
IfcSchema::IfcBSplineSurfaceForm::IfcBSplineSurfaceForm_UNSPECIFIED,
bspline->IsUClosed(),
bspline->IsVClosed(),
false,
umults,
vmults,
uknots,
vknots,
knot_spec_u
);
}
return 1;
}
#endif
return 0;
}
template <>
int convert_to_ifc(const TopoDS_Edge& e, IfcSchema::IfcCurve*& c, bool advanced) {
double a, b;
IfcSchema::IfcCurve* base;
Handle_Geom_Curve crv = BRep_Tool::Curve(e, a, b);
if (!convert_to_ifc(crv, base, advanced)) {
return 0;
}
IfcEntityList::ptr trim1(new IfcEntityList);
IfcEntityList::ptr trim2(new IfcEntityList);
trim1->push(new IfcSchema::IfcParameterValue(a));
trim2->push(new IfcSchema::IfcParameterValue(b));
c = new IfcSchema::IfcTrimmedCurve(base, trim1, trim2, true, IfcSchema::IfcTrimmingPreference::IfcTrimmingPreference_PARAMETER);
return 1;
}
template <>
int convert_to_ifc(const TopoDS_Edge& e, IfcSchema::IfcEdge*& edge, bool advanced) {
double a, b;
TopExp_Explorer exp(e, TopAbs_VERTEX);
if (!exp.More()) return 0;
TopoDS_Vertex v1 = TopoDS::Vertex(exp.Current());
exp.Next();
if (!exp.More()) return 0;
TopoDS_Vertex v2 = TopoDS::Vertex(exp.Current());
IfcSchema::IfcVertex *vertex1, *vertex2;
if (!(convert_to_ifc(v1, vertex1, advanced) && convert_to_ifc(v2, vertex2, advanced))) {
return 0;
}
Handle_Geom_Curve crv = BRep_Tool::Curve(e, a, b);
if (crv.IsNull()) {
return 0;
}
if (crv->DynamicType() == STANDARD_TYPE(Geom_Line) && !advanced) {
IfcSchema::IfcEdge* edge2 = new IfcSchema::IfcEdge(vertex1, vertex2);
edge = new IfcSchema::IfcOrientedEdge(edge2, true);
return 1;
} else {
IfcSchema::IfcCurve* curve;
if (!convert_to_ifc(crv, curve, advanced)) {
return 0;
}
/// @todo probably not correct
const bool sense = e.Orientation() == TopAbs_FORWARD;
IfcSchema::IfcEdge* edge2 = new IfcSchema::IfcEdgeCurve(vertex1, vertex2, curve, true);
edge = new IfcSchema::IfcOrientedEdge(edge2, sense);
return 1;
}
}
template <>
int convert_to_ifc(const TopoDS_Wire& wire, IfcSchema::IfcLoop*& loop, bool advanced) {
bool polygonal = true;
for (TopExp_Explorer exp(wire, TopAbs_EDGE); exp.More(); exp.Next()) {
double a, b;
Handle_Geom_Curve crv = BRep_Tool::Curve(TopoDS::Edge(exp.Current()), a, b);
if (crv.IsNull()) {
continue;
}
if (crv->DynamicType() != STANDARD_TYPE(Geom_Line)) {
polygonal = false;
break;
}
}
if (!polygonal && !advanced) {
return 0;
} else if (polygonal && !advanced) {
IfcSchema::IfcCartesianPoint::list::ptr points(new IfcSchema::IfcCartesianPoint::list);
BRepTools_WireExplorer exp(wire);
IfcSchema::IfcCartesianPoint* p;
for (; exp.More(); exp.Next()) {
if (convert_to_ifc(exp.CurrentVertex(), p, advanced)) {
points->push(p);
} else {
return 0;
}
}
loop = new IfcSchema::IfcPolyLoop(points);
return 1;
} else {
IfcSchema::IfcOrientedEdge::list::ptr edges(new IfcSchema::IfcOrientedEdge::list);
BRepTools_WireExplorer exp(wire);
for (; exp.More(); exp.Next()) {
IfcSchema::IfcEdge* edge;
// With advanced set to true convert_to_ifc(TopoDS_Edge&) will always create an IfcOrientedEdge
if (!convert_to_ifc(exp.Current(), edge, true)) {
double a, b;
if (BRep_Tool::Curve(TopoDS::Edge(exp.Current()), a, b).IsNull()) {
continue;
} else {
return 0;
}
}
edges->push(edge->as<IfcSchema::IfcOrientedEdge>());
}
loop = new IfcSchema::IfcEdgeLoop(edges);
return 1;
}
}
template <>
int convert_to_ifc(const TopoDS_Face& f, IfcSchema::IfcFace*& face, bool advanced) {
Handle_Geom_Surface surf = BRep_Tool::Surface(f);
TopExp_Explorer exp(f, TopAbs_WIRE);
IfcSchema::IfcFaceBound::list::ptr bounds(new IfcSchema::IfcFaceBound::list);
int index = 0;
for (; exp.More(); exp.Next(), ++index) {
IfcSchema::IfcLoop* loop;
if (!convert_to_ifc(TopoDS::Wire(exp.Current()), loop, advanced)) {
return 0;
}
IfcSchema::IfcFaceBound* bnd;
if (index == 0) {
bnd = new IfcSchema::IfcFaceOuterBound(loop, true);
} else {
bnd = new IfcSchema::IfcFaceBound(loop, true);
}
bounds->push(bnd);
}
const bool is_planar = surf->DynamicType() == STANDARD_TYPE(Geom_Plane);
if (!is_planar && !advanced) {
return 0;
}
if (is_planar && !advanced) {
face = new IfcSchema::IfcFace(bounds);
return 1;
} else {
#ifdef USE_IFC4
IfcSchema::IfcSurface* surface;
if (!convert_to_ifc(surf, surface, advanced)) {
return 0;
}
face = new IfcSchema::IfcAdvancedFace(bounds, surface, f.Orientation() == TopAbs_FORWARD);
return 1;
#else
// No IfcAdvancedFace in Ifc2x3
return 0;
#endif
}
}
template <typename U>
int convert_to_ifc(const TopoDS_Shape& s, U*& item, bool advanced) {
IfcSchema::IfcFace::list::ptr faces(new IfcSchema::IfcFace::list);
IfcSchema::IfcFace* f;
for (TopExp_Explorer exp(s, TopAbs_FACE); exp.More(); exp.Next()) {
if (convert_to_ifc(TopoDS::Face(exp.Current()), f, advanced)) {
faces->push(f);
}
}
item = new U(faces);
return faces->size();
}
IfcSchema::IfcProductDefinitionShape* IfcGeom::serialise(const TopoDS_Shape& shape, bool advanced) {
#ifndef USE_IFC4
advanced = false;
#endif
for (TopExp_Explorer exp(shape, TopAbs_COMPSOLID); exp.More();) {
/// @todo CompSolids are not supported
return 0;
}
IfcSchema::IfcRepresentation* rep = 0;
IfcSchema::IfcRepresentationItem::list::ptr items(new IfcSchema::IfcRepresentationItem::list);
// First check if there is a solid with one or more shells
for (TopExp_Explorer exp(shape, TopAbs_SOLID); exp.More(); exp.Next()) {
IfcSchema::IfcClosedShell* outer = 0;
IfcSchema::IfcClosedShell::list::ptr inner(new IfcSchema::IfcClosedShell::list);
for (TopExp_Explorer exp2(exp.Current(), TopAbs_SHELL); exp2.More(); exp2.Next()) {
IfcSchema::IfcClosedShell* shell;
if (!convert_to_ifc(exp2.Current(), shell, advanced)) {
return 0;
}
/// @todo Are shells always in this order or does Orientation() needs to be checked?
if (outer) {
inner->push(shell);
} else {
outer = shell;
}
}
#ifdef USE_IFC4
if (advanced) {
if (inner->size()) {
items->push(new IfcSchema::IfcAdvancedBrepWithVoids(outer, inner));
} else {
items->push(new IfcSchema::IfcAdvancedBrep(outer));
}
} else
#endif
/// @todo this is not necessarily correct as the shell is not necessarily facetted.
if (inner->size()) {
items->push(new IfcSchema::IfcFacetedBrepWithVoids(outer, inner));
} else {
items->push(new IfcSchema::IfcFacetedBrep(outer));
}
}
if (items->size() > 0) {
rep = new IfcSchema::IfcShapeRepresentation(0, std::string("Body"), std::string("Brep"), items);
} else {
// If not, see if there is a shell
IfcSchema::IfcOpenShell::list::ptr shells(new IfcSchema::IfcOpenShell::list);
for (TopExp_Explorer exp(shape, TopAbs_SHELL); exp.More(); exp.Next()) {
IfcSchema::IfcOpenShell* shell;
if (!convert_to_ifc(exp.Current(), shell, advanced)) {
return 0;
}
shells->push(shell);
}
if (shells->size() > 0) {
items->push(new IfcSchema::IfcShellBasedSurfaceModel(shells->generalize()));
rep = new IfcSchema::IfcShapeRepresentation(0, std::string("Body"), std::string("Brep"), items);
} else {
// If not, see if there is are one of more faces. Note that they will be grouped into a shell.
IfcSchema::IfcOpenShell* shell;
int face_count = convert_to_ifc(shape, shell, advanced);
if (face_count > 0) {
items->push(shell);
rep = new IfcSchema::IfcShapeRepresentation(0, std::string("Body"), std::string("Brep"), items);
} else {
// If not, see if there are any edges. Note that wires are skipped as
// they are not commonly top-level geometrical descriptions in IFC.
// Also note that edges are written as trimmed curves rather than edges.
IfcEntityList::ptr edges(new IfcEntityList);
for (TopExp_Explorer exp(shape, TopAbs_EDGE); exp.More(); exp.Next()) {
IfcSchema::IfcCurve* c;
if (!convert_to_ifc(TopoDS::Edge(exp.Current()), c, advanced)) {
return 0;
}
edges->push(c);
}
if (edges->size() == 0) {
return 0;
} else if (edges->size() == 1) {
rep = new IfcSchema::IfcShapeRepresentation(0, std::string("Axis"), std::string("Curve2D"), edges->as<IfcSchema::IfcRepresentationItem>());
} else {
// A geometric set is created as that probably (?) makes more sense in IFC
IfcSchema::IfcGeometricCurveSet* curves = new IfcSchema::IfcGeometricCurveSet(edges);
items->push(curves);
rep = new IfcSchema::IfcShapeRepresentation(0, std::string("Axis"), std::string("GeometricCurveSet"), items->as<IfcSchema::IfcRepresentationItem>());
}
}
}
}
IfcSchema::IfcRepresentation::list::ptr reps(new IfcSchema::IfcRepresentation::list);
reps->push(rep);
return new IfcSchema::IfcProductDefinitionShape(boost::none, boost::none, reps);
}
IfcSchema::IfcProductDefinitionShape* IfcGeom::tesselate(const TopoDS_Shape& shape, double deflection) {
BRepMesh_IncrementalMesh(shape, deflection);
IfcSchema::IfcFace::list::ptr faces(new IfcSchema::IfcFace::list);
for (TopExp_Explorer exp(shape, TopAbs_FACE); exp.More(); exp.Next()) {
const TopoDS_Face& face = TopoDS::Face(exp.Current());
TopLoc_Location loc;
Handle(Poly_Triangulation) tri = BRep_Tool::Triangulation(face, loc);
if (!tri.IsNull()) {
const TColgp_Array1OfPnt& nodes = tri->Nodes();
std::vector<IfcSchema::IfcCartesianPoint*> vertices;
for (int i = 1; i <= nodes.Length(); ++i) {
gp_Pnt pnt = nodes(i).Transformed(loc);
std::vector<double> xyz; xyz.push_back(pnt.X()); xyz.push_back(pnt.Y()); xyz.push_back(pnt.Z());
IfcSchema::IfcCartesianPoint* cpnt = new IfcSchema::IfcCartesianPoint(xyz);
vertices.push_back(cpnt);
}
const Poly_Array1OfTriangle& triangles = tri->Triangles();
for (int i = 1; i <= triangles.Length(); ++i) {
int n1, n2, n3;
triangles(i).Get(n1, n2, n3);
IfcSchema::IfcCartesianPoint::list::ptr points(new IfcSchema::IfcCartesianPoint::list);
points->push(vertices[n1 - 1]);
points->push(vertices[n2 - 1]);
points->push(vertices[n3 - 1]);
IfcSchema::IfcPolyLoop* loop = new IfcSchema::IfcPolyLoop(points);
IfcSchema::IfcFaceOuterBound* bound = new IfcSchema::IfcFaceOuterBound(loop, face.Orientation() != TopAbs_REVERSED);
IfcSchema::IfcFaceBound::list::ptr bounds(new IfcSchema::IfcFaceBound::list);
bounds->push(bound);
IfcSchema::IfcFace* face2 = new IfcSchema::IfcFace(bounds);
faces->push(face2);
}
}
}
IfcSchema::IfcOpenShell* shell = new IfcSchema::IfcOpenShell(faces);
IfcSchema::IfcConnectedFaceSet::list::ptr shells(new IfcSchema::IfcConnectedFaceSet::list);
shells->push(shell);
IfcSchema::IfcFaceBasedSurfaceModel* surface_model = new IfcSchema::IfcFaceBasedSurfaceModel(shells);
IfcSchema::IfcRepresentation::list::ptr reps(new IfcSchema::IfcRepresentation::list);
IfcSchema::IfcRepresentationItem::list::ptr items(new IfcSchema::IfcRepresentationItem::list);
items->push(surface_model);
IfcSchema::IfcShapeRepresentation* rep = new IfcSchema::IfcShapeRepresentation(
0, std::string("Facetation"), std::string("SurfaceModel"), items);
reps->push(rep);
IfcSchema::IfcProductDefinitionShape* shapedef = new IfcSchema::IfcProductDefinitionShape(boost::none, boost::none, reps);
return shapedef;
}
src/ifcgeom/IfcGeomWires.cpp
+31 -17
View File
@@ -83,6 +83,9 @@
#include <ShapeFix_ShapeTolerance.hxx>
#include <ShapeFix_Solid.hxx>
#include <Geom_BSplineCurve.hxx>
#include <BRepTools_WireExplorer.hxx>
#include "../ifcgeom/IfcGeom.h"
bool IfcGeom::Kernel::convert(const IfcSchema::IfcCompositeCurve* l, TopoDS_Wire& wire) {
@@ -390,29 +393,46 @@ bool IfcGeom::Kernel::convert(const IfcSchema::IfcEdgeCurve* l, TopoDS_Wire& res
result = mw;
return true;
} else if (is_bounded && convert_wire(l->EdgeGeometry(), result)) {
if (!l->SameSense()) std::swap(pnt1, pnt2);
TopExp_Explorer exp(result, TopAbs_EDGE);
if (!l->SameSense()) {
result.Reverse();
}
bool first = true;
TopExp_Explorer exp(result, TopAbs_EDGE);
while (exp.More()) {
const TopoDS_Edge& ed = TopoDS::Edge(exp.Current());
Standard_Real u1, u2;
Handle(Geom_Curve) ecrv = BRep_Tool::Curve(ed, u1, u2);
exp.Next();
const bool last = !exp.More();
first = false;
gp_Pnt a, b;
if (first && last) {
mw.Add(BRepBuilderAPI_MakeEdge(ecrv, p1, p2));
a = p1;
b = p2;
} else if (first) {
gp_Pnt pu;
ecrv->D0(u2, pu);
mw.Add(BRepBuilderAPI_MakeEdge(ecrv, p1, pu));
a = p1;
ecrv->D0(u2, b);
} else if (last) {
gp_Pnt pu;
ecrv->D0(u1, pu);
mw.Add(BRepBuilderAPI_MakeEdge(ecrv, pu, p2));
ecrv->D0(u1, a);
b = p2;
} else {
mw.Add(BRepBuilderAPI_MakeEdge(ecrv, u1, u2));
first = false;
continue;
}
BRep_Builder builder;
TopoDS_Vertex v1, v2;
/// @todo project first and emit warnings accordingly
builder.MakeVertex(v1, a, getValue(GV_PRECISION));
builder.MakeVertex(v2, b, getValue(GV_PRECISION));
mw.Add(BRepBuilderAPI_MakeEdge(ecrv, v1, v2));
first = false;
}
result = mw;
return true;
@@ -427,13 +447,7 @@ bool IfcGeom::Kernel::convert(const IfcSchema::IfcEdgeLoop* l, TopoDS_Wire& resu
for (IfcSchema::IfcOrientedEdge::list::it it = li->begin(); it != li->end(); ++it) {
TopoDS_Wire w;
if (convert_wire(*it, w)) {
if (!(*it)->Orientation()) w.Reverse();
TopoDS_Iterator topoit(w, false);
for (; topoit.More(); topoit.Next()) {
const TopoDS_Edge& e = TopoDS::Edge(topoit.Value());
mw.Add(e);
}
// mw.Add(w);
mw.Add(TopoDS::Edge(TopoDS_Iterator(w).Value()));
}
}
result = mw;
src/ifcgeom/IfcRegister.h
+1
View File
@@ -119,6 +119,7 @@ CURVE(IfcCircle);
CURVE(IfcEllipse);
CURVE(IfcLine);
#ifdef USE_IFC4
// IfcRationalBSplineCurveWithKnots included
CURVE(IfcBSplineCurveWithKnots);
#endif
src/ifcopenshell-python/ifcopenshell/__init__.py
+11 -106
View File
@@ -17,16 +17,11 @@
# #
###############################################################################
from __future__ import print_function
import os
import sys
import numbers
import platform
import functools
import itertools
from functools import reduce
from . import guid
python_distribution = os.path.join(platform.system().lower(),
platform.architecture()[0],
@@ -37,106 +32,16 @@ sys.path.append(os.path.abspath(os.path.join(
try:
from . import ifcopenshell_wrapper
except:
except Exception as e:
if int(platform.python_version_tuple()[0]) == 2:
import traceback
traceback.print_exc()
print('-' * 64)
raise ImportError("IfcOpenShell not built for '%s'" % python_distribution)
class entity_instance(object):
def __init__(self, e):
super(entity_instance, self).__setattr__('wrapped_data', e)
def __getattr__(self, name):
INVALID, FORWARD, INVERSE = range(3)
attr_cat = self.wrapped_data.get_attribute_category(name)
if attr_cat == FORWARD:
return entity_instance.wrap_value(self.wrapped_data.get_argument(self.wrapped_data.get_argument_index(name)))
elif attr_cat == INVERSE:
return entity_instance.wrap_value(self.wrapped_data.get_inverse(name))
else: raise AttributeError("entity instance of type '%s' has no attribute '%s'"%(self.wrapped_data.is_a(), name))
@staticmethod
def walk(f, g, value):
if isinstance(value, (tuple, list)): return tuple(map(functools.partial(entity_instance.walk, f, g), value))
elif f(value): return g(value)
else: return value
@staticmethod
def wrap_value(v):
wrap = lambda e: entity_instance(e)
is_instance = lambda e: isinstance(e, ifcopenshell_wrapper.entity_instance)
return entity_instance.walk(is_instance, wrap, v)
@staticmethod
def unwrap_value(v):
unwrap = lambda e: e.wrapped_data
is_instance = lambda e: isinstance(e, entity_instance)
return entity_instance.walk(is_instance, unwrap, v)
def attribute_type(self, attr):
attr_idx = attr if isinstance(attr, numbers.Integral) else self.wrapped_data.get_argument_index(attr)
return self.wrapped_data.get_argument_type(attr_idx)
def attribute_name(self, attr_idx):
return self.wrapped_data.get_argument_name(attr_idx)
def __setattr__(self, key, value):
self[self.wrapped_data.get_argument_index(key)] = value
def __getitem__(self, key):
return entity_instance.wrap_value(self.wrapped_data.get_argument(key))
def __setitem__(self, idx, value):
if value is None:
self.wrapped_data.setArgumentAsNull(idx)
else:
attr_type = self.attribute_type(idx).title().replace(' ', '')
attr_type = attr_type.replace('Binary', 'String')
attr_type = attr_type.replace('Enumeration', 'String')
try:
if isinstance(value, unicode): value = value.encode("utf-8")
except: pass
getattr(self.wrapped_data, "setArgumentAs%s" % attr_type)(idx, entity_instance.unwrap_value(value))
return value
def __len__(self): return len(self.wrapped_data)
def __repr__(self): return repr(self.wrapped_data)
def is_a(self, *args): return self.wrapped_data.is_a(*args)
def id(self): return self.wrapped_data.id()
def __eq__(self, other):
if type(self) != type(other): return False
return self.wrapped_data == other.wrapped_data
def __hash__(self):
return hash((self.id(), self.wrapped_data.file_pointer()))
def __dir__(self):
return sorted(set(itertools.chain(
dir(type(self)),
self.wrapped_data.get_attribute_names(),
self.wrapped_data.get_inverse_attribute_names()
)))
class file(object):
def __init__(self, f=None):
self.wrapped_data = f or ifcopenshell_wrapper.file(True)
def create_entity(self,type,*args,**kwargs):
e = entity_instance(ifcopenshell_wrapper.entity_instance(type))
attrs = list(enumerate(args)) + \
[(e.wrapped_data.get_argument_index(name), arg) for name, arg in kwargs.items()]
for idx, arg in attrs: e[idx] = arg
self.wrapped_data.add(e.wrapped_data)
e.wrapped_data.this.disown()
return e
def __getattr__(self, attr):
if attr[0:6] == 'create': return functools.partial(self.create_entity,attr[6:])
else: return getattr(self.wrapped_data, attr)
def __getitem__(self, key):
if isinstance(key, numbers.Integral):
return entity_instance(self.wrapped_data.by_id(key))
elif isinstance(key, str):
return entity_instance(self.wrapped_data.by_guid(key))
def by_id(self, id): return self[id]
def by_guid(self, guid): return self[guid]
def add(self, inst):
inst.wrapped_data.this.disown()
return entity_instance(self.wrapped_data.add(inst.wrapped_data))
def by_type(self, type):
return [entity_instance(e) for e in self.wrapped_data.by_type(type)]
def traverse(self, inst):
return [entity_instance(e) for e in self.wrapped_data.traverse(inst.wrapped_data)]
def remove(self, inst):
return self.wrapped_data.remove(inst.wrapped_data)
def __iter__(self):
return iter(self[id] for id in self.wrapped_data.entity_names())
from . import guid
from .file import file
from .entity_instance import entity_instance
def open(fn=None):
return file(ifcopenshell_wrapper.open(os.path.abspath(fn))) if fn else file()
src/ifcopenshell-python/ifcopenshell/entity_instance.py
+87
View File
@@ -0,0 +1,87 @@
###############################################################################
# #
# This file is part of IfcOpenShell. #
# #
# IfcOpenShell is free software: you can redistribute it and/or modify #
# it under the terms of the Lesser GNU General Public License as published by #
# the Free Software Foundation, either version 3.0 of the License, or #
# (at your option) any later version. #
# #
# IfcOpenShell is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# Lesser GNU General Public License for more details. #
# #
# You should have received a copy of the Lesser GNU General Public License #
# along with this program. If not, see <http://www.gnu.org/licenses/>. #
# #
###############################################################################
import numbers
import functools
import itertools
from . import ifcopenshell_wrapper
class entity_instance(object):
def __init__(self, e):
super(entity_instance, self).__setattr__('wrapped_data', e)
def __getattr__(self, name):
INVALID, FORWARD, INVERSE = range(3)
attr_cat = self.wrapped_data.get_attribute_category(name)
if attr_cat == FORWARD:
return entity_instance.wrap_value(self.wrapped_data.get_argument(self.wrapped_data.get_argument_index(name)))
elif attr_cat == INVERSE:
return entity_instance.wrap_value(self.wrapped_data.get_inverse(name))
else: raise AttributeError("entity instance of type '%s' has no attribute '%s'"%(self.wrapped_data.is_a(), name))
@staticmethod
def walk(f, g, value):
if isinstance(value, (tuple, list)): return tuple(map(functools.partial(entity_instance.walk, f, g), value))
elif f(value): return g(value)
else: return value
@staticmethod
def wrap_value(v):
wrap = lambda e: entity_instance(e)
is_instance = lambda e: isinstance(e, ifcopenshell_wrapper.entity_instance)
return entity_instance.walk(is_instance, wrap, v)
@staticmethod
def unwrap_value(v):
unwrap = lambda e: e.wrapped_data
is_instance = lambda e: isinstance(e, entity_instance)
return entity_instance.walk(is_instance, unwrap, v)
def attribute_type(self, attr):
attr_idx = attr if isinstance(attr, numbers.Integral) else self.wrapped_data.get_argument_index(attr)
return self.wrapped_data.get_argument_type(attr_idx)
def attribute_name(self, attr_idx):
return self.wrapped_data.get_argument_name(attr_idx)
def __setattr__(self, key, value):
self[self.wrapped_data.get_argument_index(key)] = value
def __getitem__(self, key):
return entity_instance.wrap_value(self.wrapped_data.get_argument(key))
def __setitem__(self, idx, value):
if value is None:
self.wrapped_data.setArgumentAsNull(idx)
else:
attr_type = self.attribute_type(idx).title().replace(' ', '')
attr_type = attr_type.replace('Binary', 'String')
attr_type = attr_type.replace('Enumeration', 'String')
try:
if isinstance(value, unicode): value = value.encode("utf-8")
except: pass
getattr(self.wrapped_data, "setArgumentAs%s" % attr_type)(idx, entity_instance.unwrap_value(value))
return value
def __len__(self): return len(self.wrapped_data)
def __repr__(self): return repr(self.wrapped_data)
def is_a(self, *args): return self.wrapped_data.is_a(*args)
def id(self): return self.wrapped_data.id()
def __eq__(self, other):
if type(self) != type(other): return False
return self.wrapped_data == other.wrapped_data
def __hash__(self):
return hash((self.id(), self.wrapped_data.file_pointer()))
def __dir__(self):
return sorted(set(itertools.chain(
dir(type(self)),
self.wrapped_data.get_attribute_names(),
self.wrapped_data.get_inverse_attribute_names()
)))
src/ifcopenshell-python/ifcopenshell/file.py
+57
View File
@@ -0,0 +1,57 @@
###############################################################################
# #
# This file is part of IfcOpenShell. #
# #
# IfcOpenShell is free software: you can redistribute it and/or modify #
# it under the terms of the Lesser GNU General Public License as published by #
# the Free Software Foundation, either version 3.0 of the License, or #
# (at your option) any later version. #
# #
# IfcOpenShell is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# Lesser GNU General Public License for more details. #
# #
# You should have received a copy of the Lesser GNU General Public License #
# along with this program. If not, see <http://www.gnu.org/licenses/>. #
# #
###############################################################################
import numbers
import functools
from . import ifcopenshell_wrapper
from .entity_instance import entity_instance
class file(object):
def __init__(self, f=None):
self.wrapped_data = f or ifcopenshell_wrapper.file(True)
def create_entity(self,type,*args,**kwargs):
e = entity_instance(ifcopenshell_wrapper.entity_instance(type))
attrs = list(enumerate(args)) + \
[(e.wrapped_data.get_argument_index(name), arg) for name, arg in kwargs.items()]
for idx, arg in attrs: e[idx] = arg
self.wrapped_data.add(e.wrapped_data)
e.wrapped_data.this.disown()
return e
def __getattr__(self, attr):
if attr[0:6] == 'create': return functools.partial(self.create_entity,attr[6:])
else: return getattr(self.wrapped_data, attr)
def __getitem__(self, key):
if isinstance(key, numbers.Integral):
return entity_instance(self.wrapped_data.by_id(key))
elif isinstance(key, str):
return entity_instance(self.wrapped_data.by_guid(key))
def by_id(self, id): return self[id]
def by_guid(self, guid): return self[guid]
def add(self, inst):
inst.wrapped_data.this.disown()
return entity_instance(self.wrapped_data.add(inst.wrapped_data))
def by_type(self, type):
return [entity_instance(e) for e in self.wrapped_data.by_type(type)]
def traverse(self, inst):
return [entity_instance(e) for e in self.wrapped_data.traverse(inst.wrapped_data)]
def remove(self, inst):
return self.wrapped_data.remove(inst.wrapped_data)
def __iter__(self):
return iter(self[id] for id in self.wrapped_data.entity_names())
src/ifcopenshell-python/ifcopenshell/geom/main.py
+17 -2
View File
@@ -21,6 +21,7 @@ import os
import sys
from .. import ifcopenshell_wrapper
from ..entity_instance import entity_instance
def has_occ():
try: import OCC.BRepTools
@@ -82,5 +83,19 @@ def iterate(settings, filename):
while True:
yield it.get()
if not it.next(): break
def make_shape_function(fn):
entity_instance_or_none = lambda e: None if e is None else entity_instance(e)
if has_occ:
import OCC.TopoDS
def _(string_or_shape, *args):
if isinstance(string_or_shape, OCC.TopoDS.TopoDS_Shape):
string_or_shape = utils.serialize_shape(string_or_shape)
return entity_instance_or_none(fn(string_or_shape, *args))
else:
def _(string, *args):
return entity_instance_or_none(fn(string, *args))
return _
serialise = make_shape_function(ifcopenshell_wrapper.serialise)
tesselate = make_shape_function(ifcopenshell_wrapper.tesselate)
src/ifcopenshell-python/ifcopenshell/geom/occ_utils.py
+6 -1
View File
@@ -180,7 +180,12 @@ def get_bounding_box_center(bbox):
bbmin[0], bbmin[1], bbmin[2], bbmax[0], bbmax[1], bbmax[2] = bbox.Get()
return OCC.gp.gp_Pnt(*map(lambda xy: (xy[0]+xy[1])/2., zip(bbmin, bbmax)))
def serialize_shape(shape):
shapes = OCC.BRepTools.BRepTools_ShapeSet()
shapes.Add(shape)
return shapes.WriteToString()
def create_shape_from_serialization(brep_object):
import OCC.BRepTools
src/ifcwrap/IfcGeomWrapper.i
+28
View File
@@ -389,6 +389,34 @@ struct ShapeRTTI : public boost::static_visitor<PyObject*>
}
return boost::variant<IfcGeom::Element<double>*, IfcGeom::Representation::Representation*>();
}
IfcParse::IfcLateBoundEntity* serialise(const std::string& s, bool advanced=true) {
std::stringstream stream(s);
BRepTools_ShapeSet shapes;
shapes.Read(stream);
const TopoDS_Shape& shp = shapes.Shape(shapes.NbShapes());
const IfcUtil::IfcBaseClass* e = IfcGeom::serialise(shp, advanced);
if (e) {
return new IfcParse::IfcLateBoundEntity(e->entity);
} else {
return 0;
}
}
IfcParse::IfcLateBoundEntity* tesselate(const std::string& s, double d) {
std::stringstream stream(s);
BRepTools_ShapeSet shapes;
shapes.Read(stream);
const TopoDS_Shape& shp = shapes.Shape(shapes.NbShapes());
const IfcUtil::IfcBaseClass* e = IfcGeom::tesselate(shp, d);
if (e) {
return new IfcParse::IfcLateBoundEntity(e->entity);
} else {
return 0;
}
}
%}
namespace IfcGeom {
src/ifcwrap/IfcPython.i
+2
View File
@@ -76,6 +76,8 @@
#else
#include "../ifcparse/Ifc2x3-latebound.h"
#endif
#include <BRepTools_ShapeSet.hxx>
%}
%include "utils/type_conversion.i"