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FreeCAD/src/Mod/Part/App/TopoShape.cpp

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/***************************************************************************
* Copyright (c) Jürgen Riegel (juergen.riegel@web.de) 2002 *
* *
* This file is part of the FreeCAD CAx development system. *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
* This library 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 *
* GNU Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this library; see the file COPYING.LIB. If not, *
* write to the Free Software Foundation, Inc., 59 Temple Place, *
* Suite 330, Boston, MA 02111-1307, USA *
* *
***************************************************************************/
#include "PreCompiled.h"
#ifndef _PreComp_
# include <cmath>
# include <cstdlib>
# include <sstream>
# include <QString>
# include <BRepLib.hxx>
# include <BSplCLib.hxx>
# include <Bnd_Box.hxx>
# include <BRep_Builder.hxx>
# include <BRep_Tool.hxx>
# include <BRepAdaptor_Curve.hxx>
# include <BRepAdaptor_CompCurve.hxx>
# include <BRepAdaptor_HCurve.hxx>
# include <BRepAdaptor_HCompCurve.hxx>
# include <BRepAdaptor_Surface.hxx>
# include <BRepAlgoAPI_Common.hxx>
# include <BRepAlgoAPI_Cut.hxx>
# include <BRepAlgoAPI_Fuse.hxx>
# include <BRepAlgo_Fuse.hxx>
# include <BRepAlgoAPI_Section.hxx>
# include <BRepBndLib.hxx>
# include <BRepBuilderAPI_GTransform.hxx>
# include <BRepBuilderAPI_MakeEdge.hxx>
# include <BRepBuilderAPI_MakeFace.hxx>
# include <BRepBuilderAPI_MakePolygon.hxx>
# include <BRepBuilderAPI_MakeSolid.hxx>
# include <BRepBuilderAPI_MakeVertex.hxx>
# include <BRepBuilderAPI_MakeWire.hxx>
# include <BRepBuilderAPI_MakeShell.hxx>
# include <BRepBuilderAPI_NurbsConvert.hxx>
# include <BRepBuilderAPI_FaceError.hxx>
# include <BRepBuilderAPI_Copy.hxx>
# include <BRepBuilderAPI_Transform.hxx>
# include <BRepCheck_Analyzer.hxx>
# include <BRepCheck_ListIteratorOfListOfStatus.hxx>
# include <BRepCheck_Result.hxx>
# include <BRepFilletAPI_MakeFillet.hxx>
# include <BRepMesh_IncrementalMesh.hxx>
# include <BRepMesh_Triangle.hxx>
# include <BRepMesh_Edge.hxx>
# include <BRepOffsetAPI_MakeThickSolid.hxx>
# include <BRepOffsetAPI_MakeOffsetShape.hxx>
# include <BRepOffsetAPI_MakePipe.hxx>
# include <BRepOffsetAPI_MakePipeShell.hxx>
# include <BRepOffsetAPI_Sewing.hxx>
# include <BRepOffsetAPI_ThruSections.hxx>
# include <BRepPrimAPI_MakePrism.hxx>
# include <BRepPrimAPI_MakeRevol.hxx>
# include <BRepTools.hxx>
# include <BRepTools_ReShape.hxx>
# include <BRepTools_ShapeSet.hxx>
# include <BRepFill_CompatibleWires.hxx>
# include <GCE2d_MakeSegment.hxx>
# include <Geom2d_Line.hxx>
# include <Geom2d_TrimmedCurve.hxx>
# include <GeomLProp_SLProps.hxx>
# include <GeomAPI_ProjectPointOnSurf.hxx>
# include <GeomFill_CorrectedFrenet.hxx>
# include <GeomFill_CurveAndTrihedron.hxx>
# include <GeomFill_EvolvedSection.hxx>
# include <GeomFill_Pipe.hxx>
# include <GeomFill_SectionLaw.hxx>
# include <GeomFill_Sweep.hxx>
# include <Handle_Law_BSpFunc.hxx>
# include <Handle_Law_BSpline.hxx>
# include <Handle_TopTools_HSequenceOfShape.hxx>
# include <Law_BSpFunc.hxx>
# include <Law_Constant.hxx>
# include <Law_Linear.hxx>
# include <Law_S.hxx>
# include <TopTools_HSequenceOfShape.hxx>
# include <Interface_Static.hxx>
# include <IGESControl_Controller.hxx>
# include <IGESControl_Writer.hxx>
# include <IGESControl_Reader.hxx>
# include <IGESData_GlobalSection.hxx>
# include <IGESData_IGESModel.hxx>
# include <STEPControl_Writer.hxx>
# include <STEPControl_Reader.hxx>
# include <TopTools_MapOfShape.hxx>
# include <TopoDS.hxx>
# include <TopoDS_Compound.hxx>
# include <TopoDS_Iterator.hxx>
# include <TopoDS_Solid.hxx>
# include <TopoDS_Vertex.hxx>
# include <TopExp.hxx>
# include <TopExp_Explorer.hxx>
# include <TopTools_ListIteratorOfListOfShape.hxx>
# include <Geom2d_Ellipse.hxx>
# include <Geom_BezierCurve.hxx>
# include <Geom_BezierSurface.hxx>
# include <Geom_BSplineCurve.hxx>
# include <Geom_BSplineSurface.hxx>
# include <Geom_SurfaceOfLinearExtrusion.hxx>
# include <Geom_SurfaceOfRevolution.hxx>
# include <Geom_Circle.hxx>
# include <Geom_ConicalSurface.hxx>
# include <Geom_CylindricalSurface.hxx>
# include <Geom_Ellipse.hxx>
# include <Geom_Hyperbola.hxx>
# include <Geom_Line.hxx>
# include <Geom_Parabola.hxx>
# include <Geom_Plane.hxx>
# include <Geom_CartesianPoint.hxx>
# include <Geom_SphericalSurface.hxx>
# include <Geom_ToroidalSurface.hxx>
# include <Poly_Triangulation.hxx>
# include <Standard_Failure.hxx>
# include <StlAPI_Writer.hxx>
# include <Standard_Failure.hxx>
# include <gp_GTrsf.hxx>
# include <ShapeAnalysis_Shell.hxx>
# include <ShapeBuild_ReShape.hxx>
# include <ShapeFix_Edge.hxx>
# include <ShapeFix_Face.hxx>
# include <ShapeFix_Shell.hxx>
# include <ShapeFix_Solid.hxx>
# include <ShapeUpgrade_ShellSewing.hxx>
# include <ShapeUpgrade_RemoveInternalWires.hxx>
# include <Standard_Version.hxx>
#endif
# include <BinTools.hxx>
# include <BinTools_ShapeSet.hxx>
# include <Poly_Polygon3D.hxx>
# include <Poly_PolygonOnTriangulation.hxx>
# include <BRepBuilderAPI_Sewing.hxx>
# include <ShapeFix_Shape.hxx>
# include <XSControl_WorkSession.hxx>
# include <Transfer_TransientProcess.hxx>
# include <Transfer_FinderProcess.hxx>
# include <APIHeaderSection_MakeHeader.hxx>
# include <ShapeAnalysis_FreeBoundsProperties.hxx>
# include <ShapeAnalysis_FreeBoundData.hxx>
#include <Base/Builder3D.h>
#include <Base/FileInfo.h>
#include <Base/Exception.h>
#include <Base/Tools.h>
#include <Base/Console.h>
#include "TopoShape.h"
#include "CrossSection.h"
#include "TopoShapeFacePy.h"
#include "TopoShapeEdgePy.h"
#include "TopoShapeVertexPy.h"
#include "ProgressIndicator.h"
#include "modelRefine.h"
#include "Tools.h"
#include "encodeFilename.h"
using namespace Part;
const char* BRepBuilderAPI_FaceErrorText(BRepBuilderAPI_FaceError et)
{
switch (et)
{
case BRepBuilderAPI_FaceDone:
return "Construction was successful";
case BRepBuilderAPI_NoFace:
return "No face";
case BRepBuilderAPI_NotPlanar:
return "Face is not planar";
case BRepBuilderAPI_CurveProjectionFailed:
return "Curve projection failed";
case BRepBuilderAPI_ParametersOutOfRange:
return "Parameters out of range";
#if OCC_VERSION_HEX < 0x060500
case BRepBuilderAPI_SurfaceNotC2:
return "Surface not C2-continous";
#endif
default:
return "Unknown creation error";
}
}
// ------------------------------------------------
TYPESYSTEM_SOURCE(Part::ShapeSegment , Data::Segment);
std::string ShapeSegment::getName() const
{
return std::string();
}
// ------------------------------------------------
TYPESYSTEM_SOURCE(Part::TopoShape , Data::ComplexGeoData);
TopoShape::TopoShape()
{
}
TopoShape::~TopoShape()
{
}
TopoShape::TopoShape(const TopoDS_Shape& shape)
: _Shape(shape)
{
}
TopoShape::TopoShape(const TopoShape& shape)
: _Shape(shape._Shape)
{
}
std::vector<const char*> TopoShape::getElementTypes(void) const
{
std::vector<const char*> temp(3);
temp.push_back("Vertex");
temp.push_back("Edge");
temp.push_back("Face");
return temp;
}
unsigned long TopoShape::countSubElements(const char* Type) const
{
return countSubShapes(Type);
}
Data::Segment* TopoShape::getSubElement(const char* Type, unsigned long n) const
{
std::stringstream str;
str << Type << n;
std::string temp = str.str();
return new ShapeSegment(getSubShape(temp.c_str()));
}
void TopoShape::getLinesFromSubelement(const Data::Segment* element,
std::vector<Base::Vector3d> &Points,
std::vector<Line> &lines) const
{
}
void TopoShape::getFacesFromSubelement(const Data::Segment* element,
std::vector<Base::Vector3d> &Points,
std::vector<Base::Vector3d> &PointNormals,
std::vector<Facet> &faces) const
{
if (element->getTypeId() == ShapeSegment::getClassTypeId()) {
const TopoDS_Shape& shape = static_cast<const ShapeSegment*>(element)->Shape;
if (shape.IsNull() || shape.ShapeType() != TopAbs_FACE)
return;
TopLoc_Location aLoc;
// doing the meshing and checking the result
Handle(Poly_Triangulation) aPoly = BRep_Tool::Triangulation(TopoDS::Face(shape),aLoc);
if (aPoly.IsNull())
return;
// geting the transformation of the shape/face
gp_Trsf myTransf;
Standard_Boolean identity = true;
if (!aLoc.IsIdentity()) {
identity = false;
myTransf = aLoc.Transformation();
}
Standard_Integer i;
// geting size and create the array
int nbNodesInFace = aPoly->NbNodes();
int nbTriInFace = aPoly->NbTriangles();
Points.resize(nbNodesInFace);
PointNormals.resize(nbNodesInFace); // fills up already the array
faces.resize(nbTriInFace);
// check orientation
TopAbs_Orientation orient = shape.Orientation();
// cycling through the poly mesh
const Poly_Array1OfTriangle& Triangles = aPoly->Triangles();
const TColgp_Array1OfPnt& Nodes = aPoly->Nodes();
for (i=1; i<=nbTriInFace; i++) {
// Get the triangle
Standard_Integer N1,N2,N3;
Triangles(i).Get(N1,N2,N3);
// change orientation of the triangles
if (orient != TopAbs_FORWARD) {
Standard_Integer tmp = N1;
N1 = N2;
N2 = tmp;
}
gp_Pnt V1 = Nodes(N1);
gp_Pnt V2 = Nodes(N2);
gp_Pnt V3 = Nodes(N3);
// transform the vertices to the place of the face
if (!identity) {
V1.Transform(myTransf);
V2.Transform(myTransf);
V3.Transform(myTransf);
}
// Calculate triangle normal
gp_Vec v1(V1.X(),V1.Y(),V1.Z()),v2(V2.X(),V2.Y(),V2.Z()),v3(V3.X(),V3.Y(),V3.Z());
gp_Vec Normal = (v2-v1)^(v3-v1);
//Standard_Real Area = 0.5 * Normal.Magnitude();
// add the triangle normal to the vertex normal for all points of this triangle
PointNormals[N1-1] += Base::Vector3d(Normal.X(),Normal.Y(),Normal.Z());
PointNormals[N2-1] += Base::Vector3d(Normal.X(),Normal.Y(),Normal.Z());
PointNormals[N3-1] += Base::Vector3d(Normal.X(),Normal.Y(),Normal.Z());
Points[N1-1].Set(V1.X(),V1.Y(),V1.Z());
Points[N2-1].Set(V2.X(),V2.Y(),V2.Z());
Points[N3-1].Set(V3.X(),V3.Y(),V3.Z());
int j = i - 1;
N1--;
N2--;
N3--;
faces[j].I1 = N1;
faces[j].I2 = N2;
faces[j].I3 = N3;
}
// normalize all vertex normals
for (i=0; i < nbNodesInFace; i++) {
gp_Dir clNormal;
try {
Handle_Geom_Surface Surface = BRep_Tool::Surface(TopoDS::Face(shape));
gp_Pnt vertex(Base::convertTo<gp_Pnt>(Points[i]));
GeomAPI_ProjectPointOnSurf ProPntSrf(vertex, Surface);
Standard_Real fU, fV;
ProPntSrf.Parameters(1, fU, fV);
GeomLProp_SLProps clPropOfFace(Surface, fU, fV, 2, gp::Resolution());
clNormal = clPropOfFace.Normal();
Base::Vector3d temp = Base::convertTo<Base::Vector3d>(clNormal);
if (temp * Points[i] < 0)
temp = -temp;
Points[i] = temp;
}
catch (...) {
}
Points[i].Normalize();
}
}
}
TopoDS_Shape TopoShape::getSubShape(const char* Type) const
{
if (!Type)
Standard_Failure::Raise("No sub-shape type given");
if (this->_Shape.IsNull())
Standard_Failure::Raise("Cannot get sub-shape from empty shape");
std::string shapetype(Type);
if (shapetype.size() > 4 && shapetype.substr(0,4) == "Face") {
int index=std::atoi(&shapetype[4]);
TopTools_IndexedMapOfShape anIndices;
TopExp::MapShapes(this->_Shape, TopAbs_FACE, anIndices);
// To avoid a segmentation fault we have to check if container is empty
if (anIndices.IsEmpty())
Standard_Failure::Raise("Shape has no faces");
return anIndices.FindKey(index);
}
else if (shapetype.size() > 4 && shapetype.substr(0,4) == "Edge") {
int index=std::atoi(&shapetype[4]);
TopTools_IndexedMapOfShape anIndices;
TopExp::MapShapes(this->_Shape, TopAbs_EDGE, anIndices);
// To avoid a segmentation fault we have to check if container is empty
if (anIndices.IsEmpty())
Standard_Failure::Raise("Shape has no edges");
return anIndices.FindKey(index);
}
else if (shapetype.size() > 6 && shapetype.substr(0,6) == "Vertex") {
int index=std::atoi(&shapetype[6]);
TopTools_IndexedMapOfShape anIndices;
TopExp::MapShapes(this->_Shape, TopAbs_VERTEX, anIndices);
// To avoid a segmentation fault we have to check if container is empty
if (anIndices.IsEmpty())
Standard_Failure::Raise("Shape has no vertexes");
return anIndices.FindKey(index);
}
Standard_Failure::Raise("Not supported sub-shape type");
return TopoDS_Shape(); // avoid compiler warning
}
unsigned long TopoShape::countSubShapes(const char* Type) const
{
std::string shapetype(Type);
if (shapetype == "Face") {
TopTools_IndexedMapOfShape anIndices;
TopExp::MapShapes(this->_Shape, TopAbs_FACE, anIndices);
return anIndices.Extent();
}
else if (shapetype == "Edge") {
TopTools_IndexedMapOfShape anIndices;
TopExp::MapShapes(this->_Shape, TopAbs_EDGE, anIndices);
return anIndices.Extent();
}
else if (shapetype == "Vertex") {
TopTools_IndexedMapOfShape anIndices;
TopExp::MapShapes(this->_Shape, TopAbs_VERTEX, anIndices);
return anIndices.Extent();
}
return 0;
}
PyObject * TopoShape::getPySubShape(const char* Type) const
{
// get the shape
TopoDS_Shape Shape = getSubShape(Type);
// destinquish the return type
std::string shapetype(Type);
if (shapetype.size() > 4 && shapetype.substr(0,4) == "Face")
return new TopoShapeFacePy(new TopoShape(Shape));
else if (shapetype.size() > 4 && shapetype.substr(0,4) == "Edge")
return new TopoShapeEdgePy(new TopoShape(Shape));
else if (shapetype.size() > 6 && shapetype.substr(0,6) == "Vertex")
return new TopoShapeVertexPy(new TopoShape(Shape));
else
return 0;
}
void TopoShape::operator = (const TopoShape& sh)
{
if (this != &sh) {
this->_Shape = sh._Shape;
}
}
void TopoShape::convertTogpTrsf(const Base::Matrix4D& mtrx, gp_Trsf& trsf)
{
trsf.SetValues(mtrx[0][0],mtrx[0][1],mtrx[0][2],mtrx[0][3],
mtrx[1][0],mtrx[1][1],mtrx[1][2],mtrx[1][3],
mtrx[2][0],mtrx[2][1],mtrx[2][2],mtrx[2][3]
#if OCC_VERSION_HEX < 0x060800
, 0.00001,0.00001
#endif
); //precision was removed in OCCT CR0025194
}
void TopoShape::convertToMatrix(const gp_Trsf& trsf, Base::Matrix4D& mtrx)
{
gp_Mat m = trsf._CSFDB_Getgp_Trsfmatrix();
gp_XYZ p = trsf._CSFDB_Getgp_Trsfloc();
Standard_Real scale = trsf._CSFDB_Getgp_Trsfscale();
// set Rotation matrix
mtrx[0][0] = scale * m._CSFDB_Getgp_Matmatrix(0,0);
mtrx[0][1] = scale * m._CSFDB_Getgp_Matmatrix(0,1);
mtrx[0][2] = scale * m._CSFDB_Getgp_Matmatrix(0,2);
mtrx[1][0] = scale * m._CSFDB_Getgp_Matmatrix(1,0);
mtrx[1][1] = scale * m._CSFDB_Getgp_Matmatrix(1,1);
mtrx[1][2] = scale * m._CSFDB_Getgp_Matmatrix(1,2);
mtrx[2][0] = scale * m._CSFDB_Getgp_Matmatrix(2,0);
mtrx[2][1] = scale * m._CSFDB_Getgp_Matmatrix(2,1);
mtrx[2][2] = scale * m._CSFDB_Getgp_Matmatrix(2,2);
// set pos vector
mtrx[0][3] = p._CSFDB_Getgp_XYZx();
mtrx[1][3] = p._CSFDB_Getgp_XYZy();
mtrx[2][3] = p._CSFDB_Getgp_XYZz();
}
void TopoShape::setTransform(const Base::Matrix4D& rclTrf)
{
gp_Trsf mov;
convertTogpTrsf(rclTrf, mov);
TopLoc_Location loc(mov);
_Shape.Location(loc);
}
Base::Matrix4D TopoShape::getTransform(void) const
{
Base::Matrix4D mtrx;
gp_Trsf Trf = _Shape.Location().Transformation();
convertToMatrix(Trf, mtrx);
return mtrx;
}
void TopoShape::read(const char *FileName)
{
Base::FileInfo File(FileName);
// checking on the file
if (!File.isReadable())
throw Base::FileException("File to load not existing or not readable", FileName);
if (File.hasExtension("igs") || File.hasExtension("iges")) {
// read iges file
importIges(File.filePath().c_str());
}
else if (File.hasExtension("stp") || File.hasExtension("step")) {
importStep(File.filePath().c_str());
}
else if (File.hasExtension("brp") || File.hasExtension("brep")) {
// read brep-file
importBrep(File.filePath().c_str());
}
else{
throw Base::Exception("Unknown extension");
}
}
/*!
Example code to get the labels for each face in an IGES file.
\code
#include <Handle_XSControl_WorkSession.hxx>
#include <Handle_XSControl_TransferReader.hxx>
#include <XSControl_WorkSession.hxx>
#include <XSControl_TransferReader.hxx>
#include <Handle_IGESData_IGESModel.hxx>
#include <IGESData_IGESModel.hxx>
#include <IGESData_IGESEntity.hxx>
IGESControl_Reader aReader;
...
// Gets the labels of all face items if defined in the IGES file
Handle_XSControl_WorkSession ws = aReader.WS();
Handle_XSControl_TransferReader tr = ws->TransferReader();
std::string name;
Handle(IGESData_IGESModel) aModel = aReader.IGESModel();
Standard_Integer all = aModel->NbEntities();
TopExp_Explorer ex;
for (ex.Init(this->_Shape, TopAbs_FACE); ex.More(); ex.Next())
{
const TopoDS_Face& aFace = TopoDS::Face(ex.Current());
Handle_Standard_Transient ent = tr->EntityFromShapeResult(aFace, 1);
if (!ent.IsNull()) {
int i = aModel->Number(ent);
if (i > 0) {
Handle_IGESData_IGESEntity ie = aModel->Entity(i);
if (ie->HasShortLabel())
name = ie->ShortLabel()->ToCString();
}
}
}
\endcode
*/
void TopoShape::importIges(const char *FileName)
{
try {
// read iges file
IGESControl_Controller::Init();
IGESControl_Reader aReader;
// Ignore construction elements
// http://www.opencascade.org/org/forum/thread_20603/?forum=3
aReader.SetReadVisible(Standard_True);
if (aReader.ReadFile(encodeFilename(FileName).c_str()) != IFSelect_RetDone)
throw Base::Exception("Error in reading IGES");
Handle_Message_ProgressIndicator pi = new ProgressIndicator(100);
pi->NewScope(100, "Reading IGES file...");
pi->Show();
aReader.WS()->MapReader()->SetProgress(pi);
// make brep
aReader.ClearShapes();
aReader.TransferRoots();
// one shape that contains all subshapes
this->_Shape = aReader.OneShape();
pi->EndScope();
}
catch (Standard_Failure) {
Handle(Standard_Failure) aFail = Standard_Failure::Caught();
throw Base::Exception(aFail->GetMessageString());
}
}
void TopoShape::importStep(const char *FileName)
{
try {
STEPControl_Reader aReader;
if (aReader.ReadFile(encodeFilename(FileName).c_str()) != IFSelect_RetDone)
throw Base::Exception("Error in reading STEP");
Handle_Message_ProgressIndicator pi = new ProgressIndicator(100);
aReader.WS()->MapReader()->SetProgress(pi);
pi->NewScope(100, "Reading STEP file...");
pi->Show();
// Root transfers
aReader.TransferRoots();
// one shape that contains all subshapes
this->_Shape = aReader.OneShape();
pi->EndScope();
}
catch (Standard_Failure) {
Handle(Standard_Failure) aFail = Standard_Failure::Caught();
throw Base::Exception(aFail->GetMessageString());
}
}
void TopoShape::importBrep(const char *FileName)
{
try {
// read brep-file
BRep_Builder aBuilder;
TopoDS_Shape aShape;
#if OCC_VERSION_HEX >= 0x060300
Handle_Message_ProgressIndicator pi = new ProgressIndicator(100);
pi->NewScope(100, "Reading BREP file...");
pi->Show();
BRepTools::Read(aShape,encodeFilename(FileName).c_str(),aBuilder,pi);
pi->EndScope();
#else
BRepTools::Read(aShape,(const Standard_CString)FileName,aBuilder);
#endif
this->_Shape = aShape;
}
catch (Standard_Failure) {
Handle(Standard_Failure) aFail = Standard_Failure::Caught();
throw Base::Exception(aFail->GetMessageString());
}
}
void TopoShape::importBrep(std::istream& str)
{
try {
// read brep-file
BRep_Builder aBuilder;
TopoDS_Shape aShape;
#if OCC_VERSION_HEX >= 0x060300
Handle_Message_ProgressIndicator pi = new ProgressIndicator(100);
pi->NewScope(100, "Reading BREP file...");
pi->Show();
BRepTools::Read(aShape,str,aBuilder,pi);
pi->EndScope();
#else
BRepTools::Read(aShape,str,aBuilder);
#endif
this->_Shape = aShape;
}
catch (Standard_Failure) {
Handle(Standard_Failure) aFail = Standard_Failure::Caught();
throw Base::Exception(aFail->GetMessageString());
}
catch (const std::exception& e) {
throw Base::Exception(e.what());
}
}
void TopoShape::importBinary(std::istream& str)
{
BinTools_ShapeSet set;
set.Read(str);
Standard_Integer index;
BinTools::GetInteger(str, index);
try {
this->_Shape = set.Shape(index);
}
catch (Standard_Failure) {
throw Base::RuntimeError("Failed to read shape from binary stream");
}
}
void TopoShape::write(const char *FileName) const
{
Base::FileInfo File(FileName);
if (File.hasExtension("igs") || File.hasExtension("iges")) {
// write iges file
exportIges(File.filePath().c_str());
}
else if (File.hasExtension("stp") || File.hasExtension("step")) {
exportStep(File.filePath().c_str());
}
else if (File.hasExtension("brp") || File.hasExtension("brep")) {
// read brep-file
exportBrep(File.filePath().c_str());
}
else if (File.hasExtension("stl")) {
// read brep-file
exportStl(File.filePath().c_str(),0);
}
else{
throw Base::Exception("Unknown extension");
}
}
void TopoShape::exportIges(const char *filename) const
{
try {
// write iges file
IGESControl_Controller::Init();
IGESControl_Writer aWriter;
IGESData_GlobalSection header = aWriter.Model()->GlobalSection();
header.SetAuthorName(new TCollection_HAsciiString(Interface_Static::CVal("write.iges.header.author")));
header.SetCompanyName(new TCollection_HAsciiString(Interface_Static::CVal("write.iges.header.company")));
header.SetSendName(new TCollection_HAsciiString(Interface_Static::CVal("write.iges.header.product")));
aWriter.Model()->SetGlobalSection(header);
aWriter.AddShape(this->_Shape);
aWriter.ComputeModel();
if (aWriter.Write(encodeFilename(filename).c_str()) != IFSelect_RetDone)
throw Base::Exception("Writing of IGES failed");
}
catch (Standard_Failure) {
Handle(Standard_Failure) aFail = Standard_Failure::Caught();
throw Base::Exception(aFail->GetMessageString());
}
}
void TopoShape::exportStep(const char *filename) const
{
try {
// write step file
STEPControl_Writer aWriter;
Handle_Message_ProgressIndicator pi = new ProgressIndicator(100);
aWriter.WS()->MapWriter()->SetProgress(pi);
pi->NewScope(100, "Writing STEP file...");
pi->Show();
if (aWriter.Transfer(this->_Shape, STEPControl_AsIs) != IFSelect_RetDone)
throw Base::Exception("Error in transferring STEP");
APIHeaderSection_MakeHeader makeHeader(aWriter.Model());
makeHeader.SetName(new TCollection_HAsciiString((const Standard_CString)(encodeFilename(filename).c_str())));
makeHeader.SetAuthorValue (1, new TCollection_HAsciiString("FreeCAD"));
makeHeader.SetOrganizationValue (1, new TCollection_HAsciiString("FreeCAD"));
makeHeader.SetOriginatingSystem(new TCollection_HAsciiString("FreeCAD"));
makeHeader.SetDescriptionValue(1, new TCollection_HAsciiString("FreeCAD Model"));
if (aWriter.Write(encodeFilename(filename).c_str()) != IFSelect_RetDone)
throw Base::Exception("Writing of STEP failed");
pi->EndScope();
}
catch (Standard_Failure) {
Handle(Standard_Failure) aFail = Standard_Failure::Caught();
throw Base::Exception(aFail->GetMessageString());
}
}
void TopoShape::exportBrep(const char *filename) const
{
if (!BRepTools::Write(this->_Shape,encodeFilename(filename).c_str()))
throw Base::Exception("Writing of BREP failed");
}
void TopoShape::exportBrep(std::ostream& out) const
{
BRepTools::Write(this->_Shape, out);
}
void TopoShape::exportBinary(std::ostream& out)
{
BinTools_ShapeSet set;
Standard_Integer index = set.Add(this->_Shape);
set.Write(out);
BinTools::PutInteger(out, index);
}
void TopoShape::dump(std::ostream& out) const
{
BRepTools::Dump(this->_Shape, out);
}
void TopoShape::exportStl(const char *filename, double deflection) const
{
StlAPI_Writer writer;
#if OCC_VERSION_HEX < 0x060801
if (deflection > 0) {
writer.RelativeMode() = false;
writer.SetDeflection(deflection);
}
#else
BRepMesh_IncrementalMesh aMesh(this->_Shape, deflection);
#endif
writer.Write(this->_Shape,encodeFilename(filename).c_str());
}
void TopoShape::exportFaceSet(double dev, double ca, std::ostream& str) const
{
Base::InventorBuilder builder(str);
TopExp_Explorer ex;
BRepMesh_IncrementalMesh MESH(this->_Shape,dev);
for (ex.Init(this->_Shape, TopAbs_FACE); ex.More(); ex.Next()) {
// get the shape and mesh it
const TopoDS_Face& aFace = TopoDS::Face(ex.Current());
Standard_Integer nbNodesInFace,nbTriInFace;
std::vector<Base::Vector3f> vertices;
std::vector<int> indices;
// doing the meshing and checking the result
TopLoc_Location aLoc;
Handle(Poly_Triangulation) aPoly = BRep_Tool::Triangulation(aFace,aLoc);
if (aPoly.IsNull()) continue;
// getting the transformation of the shape/face
gp_Trsf myTransf;
Standard_Boolean identity = true;
if (!aLoc.IsIdentity()) {
identity = false;
myTransf = aLoc.Transformation();
}
// getting size and create the array
nbNodesInFace = aPoly->NbNodes();
nbTriInFace = aPoly->NbTriangles();
vertices.resize(nbNodesInFace);
indices.resize(4*nbTriInFace);
// check orientation
TopAbs_Orientation orient = aFace.Orientation();
// cycling through the poly mesh
const Poly_Array1OfTriangle& Triangles = aPoly->Triangles();
const TColgp_Array1OfPnt& Nodes = aPoly->Nodes();
for (int i=1;i<=nbTriInFace;i++) {
// Get the triangle
Standard_Integer N1,N2,N3;
Triangles(i).Get(N1,N2,N3);
// change orientation of the triangles
if (orient != TopAbs_FORWARD) {
Standard_Integer tmp = N1;
N1 = N2;
N2 = tmp;
}
gp_Pnt V1 = Nodes(N1);
gp_Pnt V2 = Nodes(N2);
gp_Pnt V3 = Nodes(N3);
// transform the vertices to the place of the face
if (!identity) {
V1.Transform(myTransf);
V2.Transform(myTransf);
V3.Transform(myTransf);
}
vertices[N1-1].Set((float)(V1.X()),(float)(V1.Y()),(float)(V1.Z()));
vertices[N2-1].Set((float)(V2.X()),(float)(V2.Y()),(float)(V2.Z()));
vertices[N3-1].Set((float)(V3.X()),(float)(V3.Y()),(float)(V3.Z()));
int j = i - 1;
N1--; N2--; N3--;
indices[4*j] = N1; indices[4*j+1] = N2; indices[4*j+2] = N3; indices[4*j+3] = -1;
}
builder.addIndexedFaceSet(vertices, indices, (float)ca);
} // end of face loop
}
void TopoShape::exportLineSet(std::ostream& str) const
{
Base::InventorBuilder builder(str);
// get a indexed map of edges
TopTools_IndexedMapOfShape M;
TopExp::MapShapes(this->_Shape, TopAbs_EDGE, M);
// build up map edge->face
TopTools_IndexedDataMapOfShapeListOfShape edge2Face;
TopExp::MapShapesAndAncestors(this->_Shape, TopAbs_EDGE, TopAbs_FACE, edge2Face);
for (int i=0; i<M.Extent(); i++)
{
const TopoDS_Edge& aEdge = TopoDS::Edge(M(i+1));
gp_Trsf myTransf;
TopLoc_Location aLoc;
// try to triangulate the edge
Handle(Poly_Polygon3D) aPoly = BRep_Tool::Polygon3D(aEdge, aLoc);
std::vector<Base::Vector3f> vertices;
Standard_Integer nbNodesInFace;
// triangulation succeeded?
if (!aPoly.IsNull()) {
if (!aLoc.IsIdentity()) {
myTransf = aLoc.Transformation();
}
nbNodesInFace = aPoly->NbNodes();
vertices.resize(nbNodesInFace);
const TColgp_Array1OfPnt& Nodes = aPoly->Nodes();
gp_Pnt V;
for (Standard_Integer i=0;i < nbNodesInFace;i++) {
V = Nodes(i+1);
V.Transform(myTransf);
vertices[i].Set((float)(V.X()),(float)(V.Y()),(float)(V.Z()));
}
}
else {
// the edge has not its own triangulation, but then a face the edge is attached to
// must provide this triangulation
// Look for one face in our map (it doesn't care which one we take)
const TopoDS_Face& aFace = TopoDS::Face(edge2Face.FindFromKey(aEdge).First());
// take the face's triangulation instead
Handle(Poly_Triangulation) aPolyTria = BRep_Tool::Triangulation(aFace,aLoc);
if (!aLoc.IsIdentity()) {
myTransf = aLoc.Transformation();
}
if (aPolyTria.IsNull()) break;
// this holds the indices of the edge's triangulation to the actual points
Handle(Poly_PolygonOnTriangulation) aPoly = BRep_Tool::PolygonOnTriangulation(aEdge, aPolyTria, aLoc);
if (aPoly.IsNull())
continue; // polygon does not exist
// getting size and create the array
nbNodesInFace = aPoly->NbNodes();
vertices.resize(nbNodesInFace);
const TColStd_Array1OfInteger& indices = aPoly->Nodes();
const TColgp_Array1OfPnt& Nodes = aPolyTria->Nodes();
gp_Pnt V;
int pos = 0;
// go through the index array
for (Standard_Integer i=indices.Lower();i <= indices.Upper();i++) {
V = Nodes(indices(i));
V.Transform(myTransf);
vertices[pos++].Set((float)(V.X()),(float)(V.Y()),(float)(V.Z()));
}
}
builder.addLineSet(vertices, 2, 0, 0, 0);
}
}
Base::BoundBox3d TopoShape::getBoundBox(void) const
{
Base::BoundBox3d box;
try {
// If the shape is empty an exception may be thrown
Bnd_Box bounds;
BRepBndLib::Add(_Shape, bounds);
bounds.SetGap(0.0);
Standard_Real xMin, yMin, zMin, xMax, yMax, zMax;
bounds.Get(xMin, yMin, zMin, xMax, yMax, zMax);
box.MinX = xMin;
box.MaxX = xMax;
box.MinY = yMin;
box.MaxY = yMax;
box.MinZ = zMin;
box.MaxZ = zMax;
}
catch (Standard_Failure) {
}
return box;
}
void TopoShape::Save (Base::Writer & writer) const
{
}
void TopoShape::Restore(Base::XMLReader &reader)
{
}
void TopoShape::SaveDocFile (Base::Writer &writer) const
{
}
void TopoShape::RestoreDocFile(Base::Reader &reader)
{
}
unsigned int TopoShape_RefCountShapes(const TopoDS_Shape& aShape)
{
unsigned int size = 1; // this shape
TopoDS_Iterator it;
// go through all direct children
for (it.Initialize(aShape, false, false);it.More(); it.Next()) {
size += TopoShape_RefCountShapes(it.Value());
}
return size;
}
unsigned int TopoShape::getMemSize (void) const
{
if (!_Shape.IsNull()) {
// Count total amount of references of TopoDS_Shape objects
unsigned int memsize = (sizeof(TopoDS_Shape)+sizeof(TopoDS_TShape)) * TopoShape_RefCountShapes(_Shape);
// Now get a map of TopoDS_Shape objects without duplicates
TopTools_IndexedMapOfShape M;
TopExp::MapShapes(_Shape, M);
for (int i=0; i<M.Extent(); i++) {
const TopoDS_Shape& shape = M(i+1);
// add the size of the underlying geomtric data
Handle(TopoDS_TShape) tshape = shape.TShape();
memsize += tshape->DynamicType()->Size();
switch (shape.ShapeType())
{
case TopAbs_FACE:
{
// first, last, tolerance
memsize += 5*sizeof(Standard_Real);
const TopoDS_Face& face = TopoDS::Face(shape);
BRepAdaptor_Surface surface(face);
switch (surface.GetType())
{
case GeomAbs_Plane:
memsize += sizeof(Geom_Plane);
break;
case GeomAbs_Cylinder:
memsize += sizeof(Geom_CylindricalSurface);
break;
case GeomAbs_Cone:
memsize += sizeof(Geom_ConicalSurface);
break;
case GeomAbs_Sphere:
memsize += sizeof(Geom_SphericalSurface);
break;
case GeomAbs_Torus:
memsize += sizeof(Geom_ToroidalSurface);
break;
case GeomAbs_BezierSurface:
memsize += sizeof(Geom_BezierSurface);
memsize += (surface.NbUPoles()*surface.NbVPoles()) * sizeof(Standard_Real);
memsize += (surface.NbUPoles()*surface.NbVPoles()) * sizeof(Geom_CartesianPoint);
break;
case GeomAbs_BSplineSurface:
memsize += sizeof(Geom_BSplineSurface);
memsize += (surface.NbUKnots()+surface.NbVKnots()) * sizeof(Standard_Real);
memsize += (surface.NbUPoles()*surface.NbVPoles()) * sizeof(Standard_Real);
memsize += (surface.NbUPoles()*surface.NbVPoles()) * sizeof(Geom_CartesianPoint);
break;
case GeomAbs_SurfaceOfRevolution:
memsize += sizeof(Geom_SurfaceOfRevolution);
break;
case GeomAbs_SurfaceOfExtrusion:
memsize += sizeof(Geom_SurfaceOfLinearExtrusion);
break;
case GeomAbs_OtherSurface:
// What kind of surface should this be?
memsize += sizeof(Geom_Surface);
break;
default:
break;
}
} break;
case TopAbs_EDGE:
{
// first, last, tolerance
memsize += 3*sizeof(Standard_Real);
const TopoDS_Edge& edge = TopoDS::Edge(shape);
BRepAdaptor_Curve curve(edge);
switch (curve.GetType())
{
case GeomAbs_Line:
memsize += sizeof(Geom_Line);
break;
case GeomAbs_Circle:
memsize += sizeof(Geom_Circle);
break;
case GeomAbs_Ellipse:
memsize += sizeof(Geom_Ellipse);
break;
case GeomAbs_Hyperbola:
memsize += sizeof(Geom_Hyperbola);
break;
case GeomAbs_Parabola:
memsize += sizeof(Geom_Parabola);
break;
case GeomAbs_BezierCurve:
memsize += sizeof(Geom_BezierCurve);
memsize += curve.NbPoles() * sizeof(Standard_Real);
memsize += curve.NbPoles() * sizeof(Geom_CartesianPoint);
break;
case GeomAbs_BSplineCurve:
memsize += sizeof(Geom_BSplineCurve);
memsize += curve.NbKnots() * sizeof(Standard_Real);
memsize += curve.NbPoles() * sizeof(Standard_Real);
memsize += curve.NbPoles() * sizeof(Geom_CartesianPoint);
break;
case GeomAbs_OtherCurve:
// What kind of curve should this be?
memsize += sizeof(Geom_Curve);
break;
default:
break;
}
} break;
case TopAbs_VERTEX:
{
// tolerance
memsize += sizeof(Standard_Real);
memsize += sizeof(Geom_CartesianPoint);
} break;
default:
break;
}
}
// estimated memory usage
return memsize;
}
// in case the shape is invalid
return sizeof(TopoDS_Shape);
}
bool TopoShape::isNull() const
{
return this->_Shape.IsNull() ? true : false;
}
bool TopoShape::isValid() const
{
BRepCheck_Analyzer aChecker(this->_Shape);
return aChecker.IsValid() ? true : false;
}
bool TopoShape::analyze(std::ostream& str) const
{
if (!this->_Shape.IsNull()) {
BRepCheck_Analyzer aChecker(this->_Shape);
if (!aChecker.IsValid()) {
std::vector<TopoDS_Shape> shapes;
TopTools_IndexedMapOfShape vertexOfShape;
TopExp::MapShapes(this->_Shape, TopAbs_VERTEX, vertexOfShape);
for (int i = 1; i <= vertexOfShape.Extent();++i)
shapes.push_back(vertexOfShape(i));
TopTools_IndexedMapOfShape edgeOfShape;
TopExp::MapShapes(this->_Shape, TopAbs_EDGE, edgeOfShape);
for (int i = 1; i <= edgeOfShape.Extent();++i)
shapes.push_back(edgeOfShape(i));
TopTools_IndexedMapOfShape wireOfShape;
TopExp::MapShapes(this->_Shape, TopAbs_WIRE, wireOfShape);
for (int i = 1; i <= wireOfShape.Extent();++i)
shapes.push_back(wireOfShape(i));
TopTools_IndexedMapOfShape faceOfShape;
TopExp::MapShapes(this->_Shape, TopAbs_FACE, faceOfShape);
for (int i = 1; i <= faceOfShape.Extent();++i)
shapes.push_back(faceOfShape(i));
TopTools_IndexedMapOfShape shellOfShape;
TopExp::MapShapes(this->_Shape, TopAbs_SHELL, shellOfShape);
for (int i = 1; i <= shellOfShape.Extent();++i)
shapes.push_back(shellOfShape(i));
TopTools_IndexedMapOfShape solidOfShape;
TopExp::MapShapes(this->_Shape, TopAbs_SOLID, solidOfShape);
for (int i = 1; i <= solidOfShape.Extent();++i)
shapes.push_back(solidOfShape(i));
TopTools_IndexedMapOfShape compOfShape;
TopExp::MapShapes(this->_Shape, TopAbs_COMPOUND, compOfShape);
for (int i = 1; i <= compOfShape.Extent();++i)
shapes.push_back(compOfShape(i));
TopTools_IndexedMapOfShape compsOfShape;
TopExp::MapShapes(this->_Shape, TopAbs_COMPSOLID, compsOfShape);
for (int i = 1; i <= compsOfShape.Extent();++i)
shapes.push_back(compsOfShape(i));
for (std::vector<TopoDS_Shape>::iterator xp = shapes.begin(); xp != shapes.end(); ++xp) {
if (!aChecker.IsValid(*xp)) {
const Handle_BRepCheck_Result& result = aChecker.Result(*xp);
if (result.IsNull())
continue;
const BRepCheck_ListOfStatus& status = result->StatusOnShape(*xp);
BRepCheck_ListIteratorOfListOfStatus it(status);
while (it.More()) {
BRepCheck_Status& val = it.Value();
switch (val)
{
case BRepCheck_NoError:
str << "No error" << std::endl;
break;
case BRepCheck_InvalidPointOnCurve:
str << "Invalid point on curve" << std::endl;
break;
case BRepCheck_InvalidPointOnCurveOnSurface:
str << "Invalid point on curve on surface" << std::endl;
break;
case BRepCheck_InvalidPointOnSurface:
str << "Invalid point on surface" << std::endl;
break;
case BRepCheck_No3DCurve:
str << "No 3D curve" << std::endl;
break;
case BRepCheck_Multiple3DCurve:
str << "Multiple 3D curve" << std::endl;
break;
case BRepCheck_Invalid3DCurve:
str << "Invalid 3D curve" << std::endl;
break;
case BRepCheck_NoCurveOnSurface:
str << "No curve on surface" << std::endl;
break;
case BRepCheck_InvalidCurveOnSurface:
str << "Invalid curve on surface" << std::endl;
break;
case BRepCheck_InvalidCurveOnClosedSurface:
str << "Invalid curve on closed surface" << std::endl;
break;
case BRepCheck_InvalidSameRangeFlag:
str << "Invalid same-range flag" << std::endl;
break;
case BRepCheck_InvalidSameParameterFlag:
str << "Invalid same-parameter flag" << std::endl;
break;
case BRepCheck_InvalidDegeneratedFlag:
str << "Invalid degenerated flag" << std::endl;
break;
case BRepCheck_FreeEdge:
str << "Free edge" << std::endl;
break;
case BRepCheck_InvalidMultiConnexity:
str << "Invalid multi-connexity" << std::endl;
break;
case BRepCheck_InvalidRange:
str << "Invalid range" << std::endl;
break;
case BRepCheck_EmptyWire:
str << "Empty wire" << std::endl;
break;
case BRepCheck_RedundantEdge:
str << "Redundant edge" << std::endl;
break;
case BRepCheck_SelfIntersectingWire:
str << "Self-intersecting wire" << std::endl;
break;
case BRepCheck_NoSurface:
str << "No surface" << std::endl;
break;
case BRepCheck_InvalidWire:
str << "Invalid wires" << std::endl;
break;
case BRepCheck_RedundantWire:
str << "Redundant wires" << std::endl;
break;
case BRepCheck_IntersectingWires:
str << "Intersecting wires" << std::endl;
break;
case BRepCheck_InvalidImbricationOfWires:
str << "Invalid imbrication of wires" << std::endl;
break;
case BRepCheck_EmptyShell:
str << "Empty shell" << std::endl;
break;
case BRepCheck_RedundantFace:
str << "Redundant face" << std::endl;
break;
case BRepCheck_UnorientableShape:
str << "Unorientable shape" << std::endl;
break;
case BRepCheck_NotClosed:
str << "Not closed" << std::endl;
break;
case BRepCheck_NotConnected:
str << "Not connected" << std::endl;
break;
case BRepCheck_SubshapeNotInShape:
str << "Sub-shape not in shape" << std::endl;
break;
case BRepCheck_BadOrientation:
str << "Bad orientation" << std::endl;
break;
case BRepCheck_BadOrientationOfSubshape:
str << "Bad orientation of sub-shape" << std::endl;
break;
case BRepCheck_InvalidToleranceValue:
str << "Invalid tolerance value" << std::endl;
break;
case BRepCheck_CheckFail:
str << "Check failed" << std::endl;
break;
default:
str << "Undetermined error" << std::endl;
break;
}
it.Next();
}
}
}
return false; // errors detected
}
}
return true;
}
bool TopoShape::isClosed() const
{
return BRep_Tool::IsClosed(this->_Shape) ? true : false;
}
TopoDS_Shape TopoShape::cut(TopoDS_Shape shape) const
{
if (this->_Shape.IsNull())
Standard_Failure::Raise("Base shape is null");
if (shape.IsNull())
Standard_Failure::Raise("Tool shape is null");
BRepAlgoAPI_Cut mkCut(this->_Shape, shape);
return mkCut.Shape();
}
TopoDS_Shape TopoShape::common(TopoDS_Shape shape) const
{
if (this->_Shape.IsNull())
Standard_Failure::Raise("Base shape is null");
if (shape.IsNull())
Standard_Failure::Raise("Tool shape is null");
BRepAlgoAPI_Common mkCommon(this->_Shape, shape);
return mkCommon.Shape();
}
TopoDS_Shape TopoShape::fuse(TopoDS_Shape shape) const
{
if (this->_Shape.IsNull())
Standard_Failure::Raise("Base shape is null");
if (shape.IsNull())
Standard_Failure::Raise("Tool shape is null");
BRepAlgoAPI_Fuse mkFuse(this->_Shape, shape);
return mkFuse.Shape();
}
TopoDS_Shape TopoShape::multiFuse(const std::vector<TopoDS_Shape>& shapes, Standard_Real tolerance) const
{
if (this->_Shape.IsNull())
Standard_Failure::Raise("Base shape is null");
#if OCC_VERSION_HEX <= 0x060800
if (tolerance > 0.0)
Standard_Failure::Raise("Fuzzy Booleans are not supported in this version of OCCT");
TopoDS_Shape resShape = this->_Shape;
if (resShape.IsNull())
throw Base::Exception("Object shape is null");
for (std::vector<TopoDS_Shape>::const_iterator it = shapes.begin(); it != shapes.end(); ++it) {
if (it->IsNull())
throw Base::Exception("Input shape is null");
// Let's call algorithm computing a fuse operation:
BRepAlgoAPI_Fuse mkFuse(resShape, *it);
// Let's check if the fusion has been successful
if (!mkFuse.IsDone())
throw Base::Exception("Fusion failed");
resShape = mkFuse.Shape();
}
#else
BRepAlgoAPI_Fuse mkFuse;
TopTools_ListOfShape shapeArguments,shapeTools;
shapeArguments.Append(this->_Shape);
for (std::vector<TopoDS_Shape>::const_iterator it = shapes.begin(); it != shapes.end(); ++it) {
if (it->IsNull())
throw Base::Exception("Tool shape is null");
if (tolerance > 0.0)
// workaround for http://dev.opencascade.org/index.php?q=node/1056#comment-520
shapeTools.Append(BRepBuilderAPI_Copy(*it).Shape());
else
shapeTools.Append(*it);
}
mkFuse.SetArguments(shapeArguments);
mkFuse.SetTools(shapeTools);
if (tolerance > 0.0)
mkFuse.SetFuzzyValue(tolerance);
mkFuse.Build();
if (!mkFuse.IsDone())
throw Base::Exception("MultiFusion failed");
TopoDS_Shape resShape = mkFuse.Shape();
#endif
return resShape;
}
TopoDS_Shape TopoShape::oldFuse(TopoDS_Shape shape) const
{
if (this->_Shape.IsNull())
Standard_Failure::Raise("Base shape is null");
if (shape.IsNull())
Standard_Failure::Raise("Tool shape is null");
BRepAlgo_Fuse mkFuse(this->_Shape, shape);
return mkFuse.Shape();
}
TopoDS_Shape TopoShape::section(TopoDS_Shape shape) const
{
if (this->_Shape.IsNull())
Standard_Failure::Raise("Base shape is null");
if (shape.IsNull())
Standard_Failure::Raise("Tool shape is null");
BRepAlgoAPI_Section mkSection(this->_Shape, shape);
return mkSection.Shape();
}
std::list<TopoDS_Wire> TopoShape::slice(const Base::Vector3d& dir, double d) const
{
CrossSection cs(dir.x, dir.y, dir.z, this->_Shape);
return cs.slice(d);
}
TopoDS_Compound TopoShape::slices(const Base::Vector3d& dir, const std::vector<double>& d) const
{
std::vector< std::list<TopoDS_Wire> > wire_list;
CrossSection cs(dir.x, dir.y, dir.z, this->_Shape);
for (std::vector<double>::const_iterator jt = d.begin(); jt != d.end(); ++jt) {
wire_list.push_back(cs.slice(*jt));
}
std::vector< std::list<TopoDS_Wire> >::const_iterator ft;
TopoDS_Compound comp;
BRep_Builder builder;
builder.MakeCompound(comp);
for (ft = wire_list.begin(); ft != wire_list.end(); ++ft) {
const std::list<TopoDS_Wire>& w = *ft;
for (std::list<TopoDS_Wire>::const_iterator wt = w.begin(); wt != w.end(); ++wt) {
if (!wt->IsNull())
builder.Add(comp, *wt);
}
}
return comp;
}
TopoDS_Shape TopoShape::makePipe(const TopoDS_Shape& profile) const
{
if (this->_Shape.IsNull())
Standard_Failure::Raise("Cannot sweep along empty spine");
if (this->_Shape.ShapeType() != TopAbs_WIRE)
Standard_Failure::Raise("Spine shape is not a wire");
if (profile.IsNull())
Standard_Failure::Raise("Cannot sweep empty profile");
BRepOffsetAPI_MakePipe mkPipe(TopoDS::Wire(this->_Shape), profile);
return mkPipe.Shape();
}
TopoDS_Shape TopoShape::makePipeShell(const TopTools_ListOfShape& profiles,
const Standard_Boolean make_solid,
const Standard_Boolean isFrenet,
int transition) const
{
if (this->_Shape.IsNull())
Standard_Failure::Raise("Cannot sweep along empty spine");
if (this->_Shape.ShapeType() != TopAbs_WIRE)
Standard_Failure::Raise("Spine shape is not a wire");
BRepOffsetAPI_MakePipeShell mkPipeShell(TopoDS::Wire(this->_Shape));
BRepBuilderAPI_TransitionMode transMode;
switch (transition) {
case 1: transMode = BRepBuilderAPI_RightCorner;
break;
case 2: transMode = BRepBuilderAPI_RoundCorner;
break;
default: transMode = BRepBuilderAPI_Transformed;
break;
}
mkPipeShell.SetMode(isFrenet);
mkPipeShell.SetTransitionMode(transMode);
TopTools_ListIteratorOfListOfShape it;
for (it.Initialize(profiles); it.More(); it.Next()) {
mkPipeShell.Add(TopoDS_Shape(it.Value()));
}
if (!mkPipeShell.IsReady()) Standard_Failure::Raise("shape is not ready to build");
else mkPipeShell.Build();
if (make_solid) mkPipeShell.MakeSolid();
return mkPipeShell.Shape();
}
#if 0
TopoDS_Shape TopoShape::makeTube() const
{
// http://opencascade.blogspot.com/2009/11/surface-modeling-part3.html
if (this->_Shape.IsNull())
Standard_Failure::Raise("Cannot sweep along empty spine");
if (this->_Shape.ShapeType() != TopAbs_EDGE)
Standard_Failure::Raise("Spine shape is not an edge");
const TopoDS_Edge& path_edge = TopoDS::Edge(this->_Shape);
BRepAdaptor_Curve path_adapt(path_edge);
double umin = path_adapt.FirstParameter();
double umax = path_adapt.LastParameter();
Handle_Geom_Curve hPath = path_adapt.Curve().Curve();
// Apply placement of the shape to the curve
TopLoc_Location loc1 = path_edge.Location();
hPath = Handle_Geom_Curve::DownCast(hPath->Transformed(loc1.Transformation()));
if (hPath.IsNull())
Standard_Failure::Raise("Invalid curve in path edge");
GeomFill_Pipe mkTube(hPath, radius);
mkTube.Perform(tol, Standard_False, GeomAbs_C1, BSplCLib::MaxDegree(), 1000);
const Handle_Geom_Surface& surf = mkTube.Surface();
double u1,u2,v1,v2;
surf->Bounds(u1,u2,v1,v2);
BRepBuilderAPI_MakeFace mkBuilder(surf, umin, umax, v1, v2
#if OCC_VERSION_HEX >= 0x060502
, Precision::Confusion()
#endif
);
return mkBuilder.Face();
}
#else
static Handle(Law_Function) CreateBsFunction (const Standard_Real theFirst, const Standard_Real theLast, const Standard_Real theRadius)
{
//Handle_Law_BSpline aBs;
//Handle_Law_BSpFunc aFunc = new Law_BSpFunc (aBs, theFirst, theLast);
Handle_Law_Constant aFunc = new Law_Constant();
aFunc->Set(1, theFirst, theLast);
return aFunc;
}
TopoDS_Shape TopoShape::makeTube(double radius, double tol, int cont, int maxdegree, int maxsegm) const
{
// http://opencascade.blogspot.com/2009/11/surface-modeling-part3.html
Standard_Real theTol = tol;
Standard_Real theRadius = radius;
//Standard_Boolean theIsPolynomial = Standard_True;
Standard_Boolean myIsElem = Standard_True;
GeomAbs_Shape theContinuity = GeomAbs_Shape(cont);
Standard_Integer theMaxDegree = maxdegree;
Standard_Integer theMaxSegment = maxsegm;
if (this->_Shape.IsNull())
Standard_Failure::Raise("Cannot sweep along empty spine");
Handle(Adaptor3d_HCurve) myPath;
if (this->_Shape.ShapeType() == TopAbs_EDGE) {
const TopoDS_Edge& path_edge = TopoDS::Edge(this->_Shape);
BRepAdaptor_Curve path_adapt(path_edge);
myPath = new BRepAdaptor_HCurve(path_adapt);
}
//else if (this->_Shape.ShapeType() == TopAbs_WIRE) {
// const TopoDS_Wire& path_wire = TopoDS::Wire(this->_Shape);
// BRepAdaptor_CompCurve path_adapt(path_wire);
// myPath = new BRepAdaptor_HCompCurve(path_adapt);
//}
//else {
// Standard_Failure::Raise("Spine shape is neither an edge nor a wire");
//}
else {
Standard_Failure::Raise("Spine shape is not an edge");
}
//circular profile
Handle(Geom_Circle) aCirc = new Geom_Circle (gp::XOY(), theRadius);
aCirc->Rotate (gp::OZ(), M_PI/2.);
//perpendicular section
Handle(Law_Function) myEvol = ::CreateBsFunction (myPath->FirstParameter(), myPath->LastParameter(), theRadius);
Handle(GeomFill_SectionLaw) aSec = new GeomFill_EvolvedSection(aCirc, myEvol);
Handle(GeomFill_LocationLaw) aLoc = new GeomFill_CurveAndTrihedron(new GeomFill_CorrectedFrenet);
aLoc->SetCurve (myPath);
GeomFill_Sweep mkSweep (aLoc, myIsElem);
mkSweep.SetTolerance (theTol);
mkSweep.Build (aSec, GeomFill_Location, theContinuity, theMaxDegree, theMaxSegment);
if (mkSweep.IsDone()) {
Handle_Geom_Surface mySurface = mkSweep.Surface();
//Standard_Real myError = mkSweep.ErrorOnSurface();
Standard_Real u1,u2,v1,v2;
mySurface->Bounds(u1,u2,v1,v2);
BRepBuilderAPI_MakeFace mkBuilder(mySurface, u1, u2, v1, v2
#if OCC_VERSION_HEX >= 0x060502
, Precision::Confusion()
#endif
);
return mkBuilder.Shape();
}
return TopoDS_Shape();
}
#endif
TopoDS_Shape TopoShape::makeSweep(const TopoDS_Shape& profile, double tol, int fillMode) const
{
// http://opencascade.blogspot.com/2009/10/surface-modeling-part2.html
if (this->_Shape.IsNull())
Standard_Failure::Raise("Cannot sweep along empty spine");
if (this->_Shape.ShapeType() != TopAbs_EDGE)
Standard_Failure::Raise("Spine shape is not an edge");
if (profile.IsNull())
Standard_Failure::Raise("Cannot sweep with empty profile");
if (profile.ShapeType() != TopAbs_EDGE)
Standard_Failure::Raise("Profile shape is not an edge");
const TopoDS_Edge& path_edge = TopoDS::Edge(this->_Shape);
const TopoDS_Edge& prof_edge = TopoDS::Edge(profile);
BRepAdaptor_Curve path_adapt(path_edge);
double umin = path_adapt.FirstParameter();
double umax = path_adapt.LastParameter();
Handle_Geom_Curve hPath = path_adapt.Curve().Curve();
// Apply placement of the shape to the curve
TopLoc_Location loc1 = path_edge.Location();
hPath = Handle_Geom_Curve::DownCast(hPath->Transformed(loc1.Transformation()));
if (hPath.IsNull())
Standard_Failure::Raise("invalid curve in path edge");
BRepAdaptor_Curve prof_adapt(prof_edge);
double vmin = prof_adapt.FirstParameter();
double vmax = prof_adapt.LastParameter();
Handle_Geom_Curve hProfile = prof_adapt.Curve().Curve();
// Apply placement of the shape to the curve
TopLoc_Location loc2 = prof_edge.Location();
hProfile = Handle_Geom_Curve::DownCast(hProfile->Transformed(loc2.Transformation()));
if (hProfile.IsNull())
Standard_Failure::Raise("invalid curve in profile edge");
GeomFill_Pipe mkSweep(hPath, hProfile, (GeomFill_Trihedron)fillMode);
mkSweep.GenerateParticularCase(Standard_True);
mkSweep.Perform(tol, Standard_False, GeomAbs_C1, BSplCLib::MaxDegree(), 1000);
const Handle_Geom_Surface& surf = mkSweep.Surface();
BRepBuilderAPI_MakeFace mkBuilder(surf, umin, umax, vmin, vmax
#if OCC_VERSION_HEX >= 0x060502
, Precision::Confusion()
#endif
);
return mkBuilder.Face();
}
TopoDS_Shape TopoShape::makeHelix(Standard_Real pitch, Standard_Real height,
Standard_Real radius, Standard_Real angle,
Standard_Boolean leftHanded,
Standard_Boolean newStyle) const
{
if (pitch < Precision::Confusion())
Standard_Failure::Raise("Pitch of helix too small");
if (height < Precision::Confusion())
Standard_Failure::Raise("Height of helix too small");
gp_Ax2 cylAx2(gp_Pnt(0.0,0.0,0.0) , gp::DZ());
Handle_Geom_Surface surf;
if (angle < Precision::Confusion()) {
if (radius < Precision::Confusion())
Standard_Failure::Raise("Radius of helix too small");
surf = new Geom_CylindricalSurface(cylAx2, radius);
}
else {
angle = Base::toRadians(angle);
if (angle < Precision::Confusion())
Standard_Failure::Raise("Angle of helix too small");
surf = new Geom_ConicalSurface(gp_Ax3(cylAx2), angle, radius);
}
gp_Pnt2d aPnt(0, 0);
gp_Dir2d aDir(2. * M_PI, pitch);
Standard_Real coneDir = 1.0;
if (leftHanded) {
aDir.SetCoord(-2. * M_PI, pitch);
coneDir = -1.0;
}
gp_Ax2d aAx2d(aPnt, aDir);
Handle(Geom2d_Line) line = new Geom2d_Line(aAx2d);
gp_Pnt2d beg = line->Value(0);
gp_Pnt2d end = line->Value(sqrt(4.0*M_PI*M_PI+pitch*pitch)*(height/pitch));
if (newStyle) {
// See discussion at 0001247: Part Conical Helix Height/Pitch Incorrect
if (angle >= Precision::Confusion()) {
// calculate end point for conical helix
Standard_Real v = height / cos(angle);
Standard_Real u = coneDir * (height/pitch) * 2.0 * M_PI;
gp_Pnt2d cend(u, v);
end = cend;
}
}
Handle(Geom2d_TrimmedCurve) segm = GCE2d_MakeSegment(beg , end);
TopoDS_Edge edgeOnSurf = BRepBuilderAPI_MakeEdge(segm , surf);
TopoDS_Wire wire = BRepBuilderAPI_MakeWire(edgeOnSurf);
BRepLib::BuildCurves3d(wire);
return wire;
}
//***********
// makeLongHelix is a workaround for an OCC problem found in helices with more than
// some magic number of turns. See Mantis #0954.
//***********
TopoDS_Shape TopoShape::makeLongHelix(Standard_Real pitch, Standard_Real height,
Standard_Real radius, Standard_Real angle,
Standard_Boolean leftHanded) const
{
if (pitch < Precision::Confusion())
Standard_Failure::Raise("Pitch of helix too small");
if (height < Precision::Confusion())
Standard_Failure::Raise("Height of helix too small");
gp_Ax2 cylAx2(gp_Pnt(0.0,0.0,0.0) , gp::DZ());
Handle_Geom_Surface surf;
Standard_Boolean isCylinder;
if (angle < Precision::Confusion()) { // Cylindrical helix
if (radius < Precision::Confusion())
Standard_Failure::Raise("Radius of helix too small");
surf= new Geom_CylindricalSurface(cylAx2, radius);
isCylinder = true;
}
else { // Conical helix
angle = Base::toRadians(angle);
if (angle < Precision::Confusion())
Standard_Failure::Raise("Angle of helix too small");
surf = new Geom_ConicalSurface(gp_Ax3(cylAx2), angle, radius);
isCylinder = false;
}
Standard_Real turns = height/pitch;
unsigned long wholeTurns = floor(turns);
Standard_Real partTurn = turns - wholeTurns;
gp_Pnt2d aPnt(0, 0);
gp_Dir2d aDir(2. * M_PI, pitch);
Standard_Real coneDir = 1.0;
if (leftHanded) {
aDir.SetCoord(-2. * M_PI, pitch);
coneDir = -1.0;
}
gp_Ax2d aAx2d(aPnt, aDir);
Handle(Geom2d_Line) line = new Geom2d_Line(aAx2d);
gp_Pnt2d beg = line->Value(0);
gp_Pnt2d end;
Standard_Real u,v;
BRepBuilderAPI_MakeWire mkWire;
Handle(Geom2d_TrimmedCurve) segm;
TopoDS_Edge edgeOnSurf;
for (unsigned long i = 0; i < wholeTurns; i++) {
if (isCylinder) {
end = line->Value(sqrt(4.0*M_PI*M_PI+pitch*pitch)*(i+1));
}
else {
u = coneDir * (i+1) * 2.0 * M_PI;
v = ((i+1) * pitch) / cos(angle);
end = gp_Pnt2d(u, v);
}
segm = GCE2d_MakeSegment(beg , end);
edgeOnSurf = BRepBuilderAPI_MakeEdge(segm , surf);
mkWire.Add(edgeOnSurf);
beg = end;
}
if (partTurn > Precision::Confusion()) {
if (isCylinder) {
end = line->Value(sqrt(4.0*M_PI*M_PI+pitch*pitch)*turns);
}
else {
u = coneDir * turns * 2.0 * M_PI;
v = height / cos(angle);
end = gp_Pnt2d(u, v);
}
segm = GCE2d_MakeSegment(beg , end);
edgeOnSurf = BRepBuilderAPI_MakeEdge(segm , surf);
mkWire.Add(edgeOnSurf);
}
TopoDS_Wire wire = mkWire.Wire();
BRepLib::BuildCurves3d(wire);
return wire;
}
TopoDS_Shape TopoShape::makeThread(Standard_Real pitch,
Standard_Real depth,
Standard_Real height,
Standard_Real radius) const
{
if (pitch < Precision::Confusion())
Standard_Failure::Raise("Pitch of thread too small");
if (depth < Precision::Confusion())
Standard_Failure::Raise("Depth of thread too small");
if (height < Precision::Confusion())
Standard_Failure::Raise("Height of thread too small");
if (radius < Precision::Confusion())
Standard_Failure::Raise("Radius of thread too small");
//Threading : Create Surfaces
gp_Ax2 cylAx2(gp_Pnt(0.0,0.0,0.0) , gp::DZ());
Handle(Geom_CylindricalSurface) aCyl1 = new Geom_CylindricalSurface(cylAx2 , radius);
Handle(Geom_CylindricalSurface) aCyl2 = new Geom_CylindricalSurface(cylAx2 , radius+depth);
//Threading : Define 2D Curves
gp_Pnt2d aPnt(2. * M_PI , height / 2.);
gp_Dir2d aDir(2. * M_PI , height / 4.);
gp_Ax2d aAx2d(aPnt , aDir);
Standard_Real aMajor = 2. * M_PI;
Standard_Real aMinor = pitch;
Handle(Geom2d_Ellipse) anEllipse1 = new Geom2d_Ellipse(aAx2d , aMajor , aMinor);
Handle(Geom2d_Ellipse) anEllipse2 = new Geom2d_Ellipse(aAx2d , aMajor , aMinor / 4);
Handle(Geom2d_TrimmedCurve) aArc1 = new Geom2d_TrimmedCurve(anEllipse1 , 0 , M_PI);
Handle(Geom2d_TrimmedCurve) aArc2 = new Geom2d_TrimmedCurve(anEllipse2 , 0 , M_PI);
gp_Pnt2d anEllipsePnt1 = anEllipse1->Value(0);
gp_Pnt2d anEllipsePnt2 = anEllipse1->Value(M_PI);
Handle(Geom2d_TrimmedCurve) aSegment = GCE2d_MakeSegment(anEllipsePnt1 , anEllipsePnt2);
//Threading : Build Edges and Wires
TopoDS_Edge aEdge1OnSurf1 = BRepBuilderAPI_MakeEdge(aArc1 , aCyl1);
TopoDS_Edge aEdge2OnSurf1 = BRepBuilderAPI_MakeEdge(aSegment , aCyl1);
TopoDS_Edge aEdge1OnSurf2 = BRepBuilderAPI_MakeEdge(aArc2 , aCyl2);
TopoDS_Edge aEdge2OnSurf2 = BRepBuilderAPI_MakeEdge(aSegment , aCyl2);
TopoDS_Wire threadingWire1 = BRepBuilderAPI_MakeWire(aEdge1OnSurf1 , aEdge2OnSurf1);
TopoDS_Wire threadingWire2 = BRepBuilderAPI_MakeWire(aEdge1OnSurf2 , aEdge2OnSurf2);
BRepLib::BuildCurves3d(threadingWire1);
BRepLib::BuildCurves3d(threadingWire2);
BRepOffsetAPI_ThruSections aTool(Standard_True);
aTool.AddWire(threadingWire1);
aTool.AddWire(threadingWire2);
aTool.CheckCompatibility(Standard_False);
return aTool.Shape();
}
TopoDS_Shape TopoShape::makeLoft(const TopTools_ListOfShape& profiles,
Standard_Boolean isSolid,
Standard_Boolean isRuled,
Standard_Boolean isClosed) const
{
// http://opencascade.blogspot.com/2010/01/surface-modeling-part5.html
BRepOffsetAPI_ThruSections aGenerator (isSolid,isRuled);
TopTools_ListIteratorOfListOfShape it;
int countShapes = 0;
for (it.Initialize(profiles); it.More(); it.Next()) {
const TopoDS_Shape& item = it.Value();
if (!item.IsNull() && item.ShapeType() == TopAbs_VERTEX) {
aGenerator.AddVertex(TopoDS::Vertex (item));
countShapes++;
}
else if (!item.IsNull() && item.ShapeType() == TopAbs_EDGE) {
BRepBuilderAPI_MakeWire mkWire(TopoDS::Edge(item));
aGenerator.AddWire(mkWire.Wire());
countShapes++;
}
else if (!item.IsNull() && item.ShapeType() == TopAbs_WIRE) {
aGenerator.AddWire(TopoDS::Wire (item));
countShapes++;
}
}
if (countShapes < 2) {
Standard_Failure::Raise("Need at least two vertices, edges or wires to create loft face"); }
else {
// close loft by duplicating initial profile as last profile. not perfect.
if (isClosed) {
/* can only close loft in certain combinations of Vertex/Wire(Edge):
- V1-W1-W2-W3-V2 ==> V1-W1-W2-W3-V2-V1 invalid closed
- V1-W1-W2-W3 ==> V1-W1-W2-W3-V1 valid closed
- W1-W2-W3-V1 ==> W1-W2-W3-V1-W1 invalid closed
- W1-W2-W3 ==> W1-W2-W3-W1 valid closed*/
if (profiles.Last().ShapeType() == TopAbs_VERTEX) {
Base::Console().Message("TopoShape::makeLoft: can't close Loft with Vertex as last profile. 'Closed' ignored.\n"); }
else {
// repeat Add logic above for first profile
const TopoDS_Shape& firstProfile = profiles.First();
if (firstProfile.ShapeType() == TopAbs_VERTEX) {
aGenerator.AddVertex(TopoDS::Vertex (firstProfile));
countShapes++;
}
else if (firstProfile.ShapeType() == TopAbs_EDGE) {
aGenerator.AddWire(TopoDS::Wire (firstProfile));
countShapes++;
}
else if (firstProfile.ShapeType() == TopAbs_WIRE) {
aGenerator.AddWire(TopoDS::Wire (firstProfile));
countShapes++;
}
}
}
}
Standard_Boolean anIsCheck = Standard_True;
aGenerator.CheckCompatibility (anIsCheck); // use BRepFill_CompatibleWires on profiles. force #edges, orientation, "origin" to match.
aGenerator.Build();
if (!aGenerator.IsDone())
Standard_Failure::Raise("Failed to create loft face");
//Base::Console().Message("DEBUG: TopoShape::makeLoft returns.\n");
return aGenerator.Shape();
}
TopoDS_Shape TopoShape::makePrism(const gp_Vec& vec) const
{
if (this->_Shape.IsNull()) Standard_Failure::Raise("cannot sweep empty shape");
BRepPrimAPI_MakePrism mkPrism(this->_Shape, vec);
return mkPrism.Shape();
}
TopoDS_Shape TopoShape::revolve(const gp_Ax1& axis, double d, Standard_Boolean isSolid) const
{
if (this->_Shape.IsNull()) Standard_Failure::Raise("cannot revolve empty shape");
TopoDS_Face f;
TopoDS_Wire w;
TopoDS_Edge e;
Standard_Boolean convertFailed = false;
TopoDS_Shape base = this->_Shape;
if ((isSolid) && (BRep_Tool::IsClosed(base)) &&
((base.ShapeType() == TopAbs_EDGE) || (base.ShapeType() == TopAbs_WIRE))) {
if (base.ShapeType() == TopAbs_EDGE) {
BRepBuilderAPI_MakeWire mkWire(TopoDS::Edge(base));
if (mkWire.IsDone()) {
w = mkWire.Wire(); }
else {
convertFailed = true; }
}
else {
w = TopoDS::Wire(base);}
if (!convertFailed) {
BRepBuilderAPI_MakeFace mkFace(w);
if (mkFace.IsDone()) {
f = mkFace.Face();
base = f; }
else {
convertFailed = true; }
}
}
if (convertFailed) {
Base::Console().Message("TopoShape::revolve could not make Solid from Wire/Edge.\n");}
BRepPrimAPI_MakeRevol mkRevol(base, axis,d);
return mkRevol.Shape();
}
TopoDS_Shape TopoShape::makeOffsetShape(double offset, double tol, bool intersection,
bool selfInter, short offsetMode, short join,
bool fill) const
{
BRepOffsetAPI_MakeOffsetShape mkOffset(this->_Shape, offset, tol, BRepOffset_Mode(offsetMode),
intersection ? Standard_True : Standard_False,
selfInter ? Standard_True : Standard_False,
GeomAbs_JoinType(join));
if (!mkOffset.IsDone())
Standard_Failure::Raise("BRepOffsetAPI_MakeOffsetShape not done");
const TopoDS_Shape& res = mkOffset.Shape();
if (!fill)
return res;
//get perimeter wire of original shape.
//Wires returned seem to have edges in connection order.
ShapeAnalysis_FreeBoundsProperties freeCheck(this->_Shape);
freeCheck.Perform();
if (freeCheck.NbClosedFreeBounds() < 1)
{
Standard_Failure::Raise("no closed bounds");
}
BRep_Builder builder;
TopoDS_Compound perimeterCompound;
builder.MakeCompound(perimeterCompound);
for (int index = 1; index <= freeCheck.NbClosedFreeBounds(); ++index)
{
TopoDS_Wire originalWire = freeCheck.ClosedFreeBound(index)->FreeBound();
const BRepAlgo_Image& img = mkOffset.MakeOffset().OffsetEdgesFromShapes();
//build offset wire.
TopoDS_Wire offsetWire;
builder.MakeWire(offsetWire);
TopExp_Explorer xp;
for (xp.Init(originalWire, TopAbs_EDGE); xp.More(); xp.Next())
{
if (!img.HasImage(xp.Current()))
{
Standard_Failure::Raise("no image for shape");
}
const TopTools_ListOfShape& currentImage = img.Image(xp.Current());
TopTools_ListIteratorOfListOfShape listIt;
int edgeCount(0);
TopoDS_Edge mappedEdge;
for (listIt.Initialize(currentImage); listIt.More(); listIt.Next())
{
if (listIt.Value().ShapeType() != TopAbs_EDGE)
continue;
edgeCount++;
mappedEdge = TopoDS::Edge(listIt.Value());
}
if (edgeCount != 1)
{
std::ostringstream stream;
stream << "wrong edge count: " << edgeCount << std::endl;
Standard_Failure::Raise(stream.str().c_str());
}
builder.Add(offsetWire, mappedEdge);
}
//It would be nice if we could get thruSections to build planar faces
//in all areas possible, so we could run through refine. I tried setting
//ruled to standard_true, but that didn't have the desired affect.
BRepOffsetAPI_ThruSections aGenerator;
aGenerator.AddWire(originalWire);
aGenerator.AddWire(offsetWire);
aGenerator.Build();
if (!aGenerator.IsDone())
{
Standard_Failure::Raise("ThruSections failed");
}
builder.Add(perimeterCompound, aGenerator.Shape());
}
//still had to sew. not using the passed in parameter for sew.
//Sew has it's own default tolerance. Opinions?
BRepBuilderAPI_Sewing sewTool;
sewTool.Add(this->_Shape);
sewTool.Add(perimeterCompound);
sewTool.Add(res);
sewTool.Perform(); //Perform Sewing
TopoDS_Shape outputShape = sewTool.SewedShape();
if ((outputShape.ShapeType() == TopAbs_SHELL) && (outputShape.Closed()))
{
BRepBuilderAPI_MakeSolid solidMaker(TopoDS::Shell(outputShape));
if (solidMaker.IsDone())
{
TopoDS_Solid temp = solidMaker.Solid();
//contrary to the occ docs the return value OrientCloseSolid doesn't
//indicate whether the shell was open or not. It returns true with an
//open shell and we end up with an invalid solid.
if (BRepLib::OrientClosedSolid(temp))
outputShape = temp;
}
}
return outputShape;
}
TopoDS_Shape TopoShape::makeThickSolid(const TopTools_ListOfShape& remFace,
double offset, double tol, bool intersection,
bool selfInter, short offsetMode, short join) const
{
BRepOffsetAPI_MakeThickSolid mkThick(this->_Shape, remFace, offset, tol, BRepOffset_Mode(offsetMode),
intersection ? Standard_True : Standard_False,
selfInter ? Standard_True : Standard_False,
GeomAbs_JoinType(join));
return mkThick.Shape();
}
void TopoShape::transformGeometry(const Base::Matrix4D &rclMat)
{
this->_Shape = transformGShape(rclMat);
}
TopoDS_Shape TopoShape::transformGShape(const Base::Matrix4D& rclTrf) const
{
if (this->_Shape.IsNull())
Standard_Failure::Raise("Cannot transform null shape");
gp_GTrsf mat;
mat.SetValue(1,1,rclTrf[0][0]);
mat.SetValue(2,1,rclTrf[1][0]);
mat.SetValue(3,1,rclTrf[2][0]);
mat.SetValue(1,2,rclTrf[0][1]);
mat.SetValue(2,2,rclTrf[1][1]);
mat.SetValue(3,2,rclTrf[2][1]);
mat.SetValue(1,3,rclTrf[0][2]);
mat.SetValue(2,3,rclTrf[1][2]);
mat.SetValue(3,3,rclTrf[2][2]);
mat.SetValue(1,4,rclTrf[0][3]);
mat.SetValue(2,4,rclTrf[1][3]);
mat.SetValue(3,4,rclTrf[2][3]);
// geometric transformation
BRepBuilderAPI_GTransform mkTrf(this->_Shape, mat);
return mkTrf.Shape();
}
void TopoShape::transformShape(const Base::Matrix4D& rclTrf, bool copy)
{
if (this->_Shape.IsNull())
Standard_Failure::Raise("Cannot transform null shape");
gp_Trsf mat;
mat.SetValues(rclTrf[0][0],rclTrf[0][1],rclTrf[0][2],rclTrf[0][3],
rclTrf[1][0],rclTrf[1][1],rclTrf[1][2],rclTrf[1][3],
rclTrf[2][0],rclTrf[2][1],rclTrf[2][2],rclTrf[2][3]
#if OCC_VERSION_HEX < 0x060800
, 0.00001,0.00001
#endif
); //precision was removed in OCCT CR0025194
// location transformation
BRepBuilderAPI_Transform mkTrf(this->_Shape, mat, copy ? Standard_True : Standard_False);
this->_Shape = mkTrf.Shape();
}
TopoDS_Shape TopoShape::mirror(const gp_Ax2& ax2) const
{
gp_Trsf mat;
mat.SetMirror(ax2);
BRepBuilderAPI_Transform mkTrf(this->_Shape, mat);
return mkTrf.Shape();
}
TopoDS_Shape TopoShape::toNurbs() const
{
BRepBuilderAPI_NurbsConvert mkNurbs(this->_Shape);
return mkNurbs.Shape();
}
TopoDS_Shape TopoShape::replaceShape(const std::vector< std::pair<TopoDS_Shape,TopoDS_Shape> >& s) const
{
BRepTools_ReShape reshape;
std::vector< std::pair<TopoDS_Shape,TopoDS_Shape> >::const_iterator it;
for (it = s.begin(); it != s.end(); ++it)
reshape.Replace(it->first, it->second);
return reshape.Apply(this->_Shape, TopAbs_SHAPE);
}
TopoDS_Shape TopoShape::removeShape(const std::vector<TopoDS_Shape>& s) const
{
BRepTools_ReShape reshape;
for (std::vector<TopoDS_Shape>::const_iterator it = s.begin(); it != s.end(); ++it)
reshape.Remove(*it);
return reshape.Apply(this->_Shape, TopAbs_SHAPE);
}
void TopoShape::sewShape()
{
BRepBuilderAPI_Sewing sew;
sew.Load(this->_Shape);
sew.Perform();
this->_Shape = sew.SewedShape();
}
bool TopoShape::fix(double precision, double mintol, double maxtol)
{
if (this->_Shape.IsNull())
return false;
TopAbs_ShapeEnum type = this->_Shape.ShapeType();
ShapeFix_Shape fix(this->_Shape);
fix.SetPrecision(precision);
fix.SetMinTolerance(mintol);
fix.SetMaxTolerance(maxtol);
fix.Perform();
if (type == TopAbs_SOLID) {
//fix.FixEdgeTool();
fix.FixWireTool()->Perform();
fix.FixFaceTool()->Perform();
fix.FixShellTool()->Perform();
fix.FixSolidTool()->Perform();
this->_Shape = fix.FixSolidTool()->Shape();
}
else if (type == TopAbs_SHELL) {
fix.FixWireTool()->Perform();
fix.FixFaceTool()->Perform();
fix.FixShellTool()->Perform();
this->_Shape = fix.FixShellTool()->Shape();
}
else if (type == TopAbs_FACE) {
fix.FixWireTool()->Perform();
fix.FixFaceTool()->Perform();
this->_Shape = fix.Shape();
}
else if (type == TopAbs_WIRE) {
fix.FixWireTool()->Perform();
this->_Shape = fix.Shape();
}
else {
this->_Shape = fix.Shape();
}
return isValid();
}
bool TopoShape::removeInternalWires(double minArea)
{
ShapeUpgrade_RemoveInternalWires fix(this->_Shape);
fix.MinArea() = minArea;
bool ok = fix.Perform() ? true : false;
this->_Shape = fix.GetResult();
return ok;
}
TopoDS_Shape TopoShape::removeSplitter() const
{
if (_Shape.IsNull())
Standard_Failure::Raise("Cannot remove splitter from empty shape");
if (_Shape.ShapeType() == TopAbs_SOLID) {
const TopoDS_Solid &solid = TopoDS::Solid(_Shape);
BRepBuilderAPI_MakeSolid mkSolid;
TopExp_Explorer it;
for (it.Init(solid, TopAbs_SHELL); it.More(); it.Next()) {
const TopoDS_Shell &currentShell = TopoDS::Shell(it.Current());
ModelRefine::FaceUniter uniter(currentShell);
if (uniter.process()) {
if (uniter.isModified()) {
const TopoDS_Shell &newShell = uniter.getShell();
mkSolid.Add(newShell);
}
else {
mkSolid.Add(currentShell);
}
}
else {
Standard_Failure::Raise("Removing splitter failed");
return _Shape;
}
}
return mkSolid.Solid();
}
else if (_Shape.ShapeType() == TopAbs_SHELL) {
const TopoDS_Shell& shell = TopoDS::Shell(_Shape);
ModelRefine::FaceUniter uniter(shell);
if (uniter.process()) {
return uniter.getShell();
}
else {
Standard_Failure::Raise("Removing splitter failed");
}
}
else if (_Shape.ShapeType() == TopAbs_COMPOUND) {
BRep_Builder builder;
TopoDS_Compound comp;
builder.MakeCompound(comp);
TopExp_Explorer xp;
// solids
for (xp.Init(_Shape, TopAbs_SOLID); xp.More(); xp.Next()) {
const TopoDS_Solid &solid = TopoDS::Solid(xp.Current());
BRepTools_ReShape reshape;
TopExp_Explorer it;
for (it.Init(solid, TopAbs_SHELL); it.More(); it.Next()) {
const TopoDS_Shell &currentShell = TopoDS::Shell(it.Current());
ModelRefine::FaceUniter uniter(currentShell);
if (uniter.process()) {
if (uniter.isModified()) {
const TopoDS_Shell &newShell = uniter.getShell();
reshape.Replace(currentShell, newShell);
}
}
}
builder.Add(comp, reshape.Apply(solid));
}
// free shells
for (xp.Init(_Shape, TopAbs_SHELL, TopAbs_SOLID); xp.More(); xp.Next()) {
const TopoDS_Shell& shell = TopoDS::Shell(xp.Current());
ModelRefine::FaceUniter uniter(shell);
if (uniter.process()) {
builder.Add(comp, uniter.getShell());
}
}
// the rest
for (xp.Init(_Shape, TopAbs_FACE, TopAbs_SHELL); xp.More(); xp.Next()) {
if (!xp.Current().IsNull())
builder.Add(comp, xp.Current());
}
for (xp.Init(_Shape, TopAbs_WIRE, TopAbs_FACE); xp.More(); xp.Next()) {
if (!xp.Current().IsNull())
builder.Add(comp, xp.Current());
}
for (xp.Init(_Shape, TopAbs_EDGE, TopAbs_WIRE); xp.More(); xp.Next()) {
if (!xp.Current().IsNull())
builder.Add(comp, xp.Current());
}
for (xp.Init(_Shape, TopAbs_VERTEX, TopAbs_EDGE); xp.More(); xp.Next()) {
if (!xp.Current().IsNull())
builder.Add(comp, xp.Current());
}
return comp;
}
return _Shape;
}
namespace Part {
struct MeshVertex
{
Standard_Real x,y,z;
Standard_Integer i;
MeshVertex(Standard_Real X, Standard_Real Y, Standard_Real Z)
: x(X),y(Y),z(Z)
{
}
MeshVertex(const gp_Pnt& p)
: x(p.X()),y(p.Y()),z(p.Z())
{
}
gp_Pnt toPoint() const
{ return gp_Pnt(x,y,z); }
bool operator < (const MeshVertex &rclPt) const
{
if (fabs ( this->x - rclPt.x) >= MESH_MIN_PT_DIST)
return this->x < rclPt.x;
if (fabs ( this->y - rclPt.y) >= MESH_MIN_PT_DIST)
return this->y < rclPt.y;
if (fabs ( this->z - rclPt.z) >= MESH_MIN_PT_DIST)
return this->z < rclPt.z;
return false; // points are considered to be equal
}
private:
// use the same value as used inside the Mesh module
static const double MESH_MIN_PT_DIST;
};
}
//const double Vertex::MESH_MIN_PT_DIST = 1.0e-6;
const double MeshVertex::MESH_MIN_PT_DIST = gp::Resolution();
#include <StlTransfer.hxx>
#include <StlMesh_Mesh.hxx>
#include <StlMesh_MeshExplorer.hxx>
void TopoShape::getFaces(std::vector<Base::Vector3d> &aPoints,
std::vector<Facet> &aTopo,
float accuracy, uint16_t flags) const
{
if (this->_Shape.IsNull())
return;
std::set<MeshVertex> vertices;
Standard_Real x1, y1, z1;
Standard_Real x2, y2, z2;
Standard_Real x3, y3, z3;
Handle_StlMesh_Mesh aMesh = new StlMesh_Mesh();
#if OCC_VERSION_HEX >= 0x060801
BRepMesh_IncrementalMesh bMesh(this->_Shape, accuracy);
StlTransfer::RetrieveMesh(this->_Shape,aMesh);
#else
StlTransfer::BuildIncrementalMesh(this->_Shape, accuracy,
#if OCC_VERSION_HEX >= 0x060503
Standard_True,
#endif
aMesh);
#endif
StlMesh_MeshExplorer xp(aMesh);
for (Standard_Integer nbd=1;nbd<=aMesh->NbDomains();nbd++) {
for (xp.InitTriangle (nbd); xp.MoreTriangle (); xp.NextTriangle ()) {
xp.TriangleVertices (x1,y1,z1,x2,y2,z2,x3,y3,z3);
Data::ComplexGeoData::Facet face;
std::set<MeshVertex>::iterator it;
// 1st vertex
MeshVertex v1(x1,y1,z1);
it = vertices.find(v1);
if (it == vertices.end()) {
v1.i = vertices.size();
face.I1 = v1.i;
vertices.insert(v1);
}
else {
face.I1 = it->i;
}
// 2nd vertex
MeshVertex v2(x2,y2,z2);
it = vertices.find(v2);
if (it == vertices.end()) {
v2.i = vertices.size();
face.I2 = v2.i;
vertices.insert(v2);
}
else {
face.I2 = it->i;
}
// 3rd vertex
MeshVertex v3(x3,y3,z3);
it = vertices.find(v3);
if (it == vertices.end()) {
v3.i = vertices.size();
face.I3 = v3.i;
vertices.insert(v3);
}
else {
face.I3 = it->i;
}
// make sure that we don't insert invalid facets
if (face.I1 != face.I2 &&
face.I2 != face.I3 &&
face.I3 != face.I1)
aTopo.push_back(face);
}
}
std::vector<gp_Pnt> points;
points.resize(vertices.size());
for (std::set<MeshVertex>::iterator it = vertices.begin(); it != vertices.end(); ++it)
points[it->i] = it->toPoint();
for (std::vector<gp_Pnt>::iterator it = points.begin(); it != points.end(); ++it)
aPoints.push_back(Base::Vector3d(it->X(),it->Y(),it->Z()));
}
void TopoShape::setFaces(const std::vector<Base::Vector3d> &Points,
const std::vector<Facet> &Topo, float Accuracy)
{
gp_XYZ p1, p2, p3;
TopoDS_Vertex Vertex1, Vertex2, Vertex3;
TopoDS_Face newFace;
TopoDS_Wire newWire;
BRepBuilderAPI_Sewing aSewingTool;
Standard_Real x1, y1, z1;
Standard_Real x2, y2, z2;
Standard_Real x3, y3, z3;
aSewingTool.Init(Accuracy,Standard_True);
TopoDS_Compound aComp;
BRep_Builder BuildTool;
BuildTool.MakeCompound(aComp);
unsigned int ctPoints = Points.size();
for (std::vector<Facet>::const_iterator it = Topo.begin(); it != Topo.end(); ++it) {
if (it->I1 >= ctPoints || it->I2 >= ctPoints || it->I3 >= ctPoints)
continue;
x1 = Points[it->I1].x; y1 = Points[it->I1].y; z1 = Points[it->I1].z;
x2 = Points[it->I2].x; y2 = Points[it->I2].y; z2 = Points[it->I2].z;
x3 = Points[it->I3].x; y3 = Points[it->I3].y; z3 = Points[it->I3].z;
p1.SetCoord(x1,y1,z1);
p2.SetCoord(x2,y2,z2);
p3.SetCoord(x3,y3,z3);
if ((!(p1.IsEqual(p2,0.0))) && (!(p1.IsEqual(p3,0.0)))) {
Vertex1 = BRepBuilderAPI_MakeVertex(p1);
Vertex2 = BRepBuilderAPI_MakeVertex(p2);
Vertex3 = BRepBuilderAPI_MakeVertex(p3);
newWire = BRepBuilderAPI_MakePolygon(Vertex1, Vertex2, Vertex3, Standard_True);
if (!newWire.IsNull()) {
newFace = BRepBuilderAPI_MakeFace(newWire);
if (!newFace.IsNull())
BuildTool.Add(aComp, newFace);
}
}
}
aSewingTool.Load(aComp);
aSewingTool.Perform();
_Shape = aSewingTool.SewedShape();
// TopAbs_Orientation o = _Shape.Orientation();
_Shape.Reverse(); // seems that we have to reverse the orientation
if (_Shape.IsNull())
_Shape = aComp;
}
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