274 lines
9.3 KiB
C++
274 lines
9.3 KiB
C++
/***************************************************************************
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* Copyright (c) 2016 Victor Titov (DeepSOIC) <vv.titov@gmail.com> *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#include "PreCompiled.h"
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#ifndef _PreComp_
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# include <BRepBuilderAPI_MakeFace.hxx>
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# include <BRepBuilderAPI_MakeWire.hxx>
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# include <TopoDS.hxx>
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# include <TopoDS_Builder.hxx>
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# include <TopoDS_Iterator.hxx>
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# include <QtGlobal>
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#endif
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#include <memory>
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#include "FaceMaker.h"
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#include <App/MappedElement.h>
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#include "TopoShape.h"
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#include "TopoShapeOpCode.h"
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TYPESYSTEM_SOURCE_ABSTRACT(Part::FaceMaker, Base::BaseClass)
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TYPESYSTEM_SOURCE_ABSTRACT(Part::FaceMakerPublic, Part::FaceMaker)
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void Part::FaceMaker::addWire(const TopoDS_Wire& w)
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{
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this->addShape(w);
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}
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void Part::FaceMaker::addShape(const TopoDS_Shape& sh)
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{
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addTopoShape(sh);
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}
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void Part::FaceMaker::addTopoShape(const TopoShape& shape) {
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const TopoDS_Shape &sh = shape.getShape();
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if(sh.IsNull())
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throw Base::ValueError("Input shape is null.");
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switch(sh.ShapeType()){
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case TopAbs_COMPOUND:
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this->myCompounds.push_back(TopoDS::Compound(sh));
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break;
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case TopAbs_WIRE:
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this->myWires.push_back(TopoDS::Wire(sh));
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break;
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case TopAbs_EDGE:
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this->myWires.push_back(BRepBuilderAPI_MakeWire(TopoDS::Edge(sh)).Wire());
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break;
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case TopAbs_FACE:
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this->myInputFaces.push_back(sh);
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break;
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default:
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throw Base::TypeError("Shape must be a wire, edge or compound. Something else was supplied.");
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break;
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}
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this->mySourceShapes.push_back(shape);
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}
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void Part::FaceMaker::useCompound(const TopoDS_Compound& comp)
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{
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TopoDS_Iterator it(comp);
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for(; it.More(); it.Next()){
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this->addShape(it.Value());
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}
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}
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void Part::FaceMaker::useTopoCompound(const TopoShape& comp)
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{
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for(auto &s : comp.getSubTopoShapes())
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this->addTopoShape(s);
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}
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const TopoDS_Face& Part::FaceMaker::Face()
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{
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return TopoDS::Face(TopoFace().getShape());
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}
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const Part::TopoShape &Part::FaceMaker::TopoFace() const{
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if(this->myTopoShape.isNull())
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throw NullShapeException("Part::FaceMaker: result shape is null.");
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if (this->myTopoShape.getShape().ShapeType() != TopAbs_FACE)
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throw Base::TypeError("Part::FaceMaker: return shape is not a single face.");
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return this->myTopoShape;
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}
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const Part::TopoShape &Part::FaceMaker::getTopoShape() const{
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if(this->myTopoShape.isNull())
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throw NullShapeException("Part::FaceMaker: result shape is null.");
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return this->myTopoShape;
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}
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#if OCC_VERSION_HEX >= 0x070600
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void Part::FaceMaker::Build(const Message_ProgressRange&)
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#else
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void Part::FaceMaker::Build()
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#endif
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{
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this->NotDone();
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this->myShapesToReturn = this->myInputFaces;
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this->myGenerated.Clear();
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this->Build_Essence();//adds stuff to myShapesToReturn
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for(const TopoDS_Compound& cmp : this->myCompounds){
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std::unique_ptr<FaceMaker> facemaker = Part::FaceMaker::ConstructFromType(this->getTypeId());
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facemaker->useCompound(cmp);
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facemaker->Build();
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const TopoDS_Shape &subfaces = facemaker->Shape();
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if (subfaces.IsNull())
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continue;
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if (subfaces.ShapeType() == TopAbs_COMPOUND){
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this->myShapesToReturn.push_back(subfaces);
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} else {
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//result is not a compound (probably, a face)... but we want to follow compounding structure of input, so wrap it into compound.
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TopoDS_Builder builder;
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TopoDS_Compound cmp_res;
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builder.MakeCompound(cmp_res);
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builder.Add(cmp_res,subfaces);
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this->myShapesToReturn.push_back(cmp_res);
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}
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}
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if(this->myShapesToReturn.empty()){
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//nothing to do, null shape will be returned.
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this->myShape = TopoDS_Shape();
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} else if (this->myShapesToReturn.size() == 1){
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this->myShape = this->myShapesToReturn[0];
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} else {
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TopoDS_Builder builder;
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TopoDS_Compound cmp_res;
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builder.MakeCompound(cmp_res);
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for(TopoDS_Shape &sh: this->myShapesToReturn){
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builder.Add(cmp_res,sh);
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}
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this->myShape = cmp_res;
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}
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postBuild();
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}
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struct ElementName {
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long tag;
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Data::MappedName name;
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Data::ElementIDRefs sids;
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ElementName(long t, const Data::MappedName &n, const Data::ElementIDRefs &sids)
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:tag(t),name(n), sids(sids)
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{}
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inline bool operator<(const ElementName &other) const {
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if(tag<other.tag)
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return true;
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if(tag>other.tag)
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return false;
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return Data::ElementNameComparator()(name,other.name);
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}
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};
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void Part::FaceMaker::postBuild() {
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this->myTopoShape.setShape(this->myShape);
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this->myTopoShape.Hasher = this->MyHasher;
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this->myTopoShape.mapSubElement(this->mySourceShapes);
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int i = 0;
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const char *op = this->MyOp;
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if(!op)
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op = Part::OpCodes::Face;
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const auto &faces = this->myTopoShape.getSubTopoShapes(TopAbs_FACE);
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// name the face using the edges of its outer wire
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for(auto &face : faces) {
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++i;
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TopoShape wire = face.splitWires();
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wire.mapSubElement(face);
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std::set<ElementName> edgeNames;
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int count = wire.countSubShapes(TopAbs_EDGE);
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for(int i=1;i<=count;++i) {
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Data::ElementIDRefs sids;
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Data::MappedName name = face.getMappedName(
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Data::IndexedName::fromConst("Edge",i), false, &sids);
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if(!name)
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continue;
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edgeNames.emplace(wire.getElementHistory(name),name,sids);
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}
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if(edgeNames.empty())
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continue;
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std::vector<Data::MappedName> names;
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Data::ElementIDRefs sids;
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// We just use the first source element name to make the face name more
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// stable
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names.push_back(edgeNames.begin()->name);
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sids = edgeNames.begin()->sids;
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this->myTopoShape.setElementComboName(
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Data::IndexedName::fromConst("Face",i),names,op,nullptr,&sids);
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}
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this->myTopoShape.initCache(true);
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this->Done();
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}
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std::unique_ptr<Part::FaceMaker> Part::FaceMaker::ConstructFromType(const char* className)
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{
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Base::Type fmType = Base::Type::fromName(className);
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if (fmType.isBad()){
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std::stringstream ss;
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ss << "Class '"<< className <<"' not found.";
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throw Base::TypeError(ss.str().c_str());
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}
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return Part::FaceMaker::ConstructFromType(fmType);
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}
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std::unique_ptr<Part::FaceMaker> Part::FaceMaker::ConstructFromType(Base::Type type)
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{
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if (!type.isDerivedFrom(Part::FaceMaker::getClassTypeId())){
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std::stringstream ss;
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ss << "Class '" << type.getName() << "' is not derived from Part::FaceMaker.";
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throw Base::TypeError(ss.str().c_str());
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}
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std::unique_ptr<FaceMaker> instance(static_cast<Part::FaceMaker*>(type.createInstance()));
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if (!instance){
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std::stringstream ss;
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ss << "Cannot create FaceMaker from abstract type '" << type.getName() << "'";
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throw Base::TypeError(ss.str().c_str());
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}
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return instance;
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}
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void Part::FaceMaker::throwNotImplemented()
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{
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throw Base::NotImplementedError("Not implemented yet...");
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}
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//----------------------------------------------------------------------------------------
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TYPESYSTEM_SOURCE(Part::FaceMakerSimple, Part::FaceMakerPublic)
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std::string Part::FaceMakerSimple::getUserFriendlyName() const
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{
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return std::string(QT_TRANSLATE_NOOP("Part_FaceMaker","Simple"));
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}
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std::string Part::FaceMakerSimple::getBriefExplanation() const
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{
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return std::string(QT_TRANSLATE_NOOP("Part_FaceMaker","Makes separate plane face from every wire independently. No support for holes; wires can be on different planes."));
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}
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void Part::FaceMakerSimple::Build_Essence()
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{
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for(TopoDS_Wire &w: myWires){
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this->myShapesToReturn.push_back(BRepBuilderAPI_MakeFace(w).Shape());
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}
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}
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