535 lines
20 KiB
C++
535 lines
20 KiB
C++
/***************************************************************************
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* Copyright (c) Jürgen Riegel (juergen.riegel@web.de) 2002 *
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* Copyright (c) Luke Parry (l.parry@warwick.ac.uk) 2013 *
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* Copyright (c) WandererFan (wandererfan@gmail.com) 2016 *
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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 <sstream>
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#include <Bnd_Box.hxx>
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#include <BRepBndLib.hxx>
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//#include <BRepBuilderAPI_MakePolygon.hxx>
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#include <BRepBuilderAPI_Copy.hxx>
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#include <BRepAlgoAPI_Cut.hxx>
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#include <BRepPrimAPI_MakePrism.hxx>
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#include <BRepBuilderAPI_MakeFace.hxx>
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#include <BRepAdaptor_Surface.hxx>
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# include <BRep_Builder.hxx>
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#include <gp_Ax2.hxx>
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#include <gp_Ax3.hxx>
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#include <gp_Pnt.hxx>
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#include <gp_Pln.hxx>
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#include <gp_Dir.hxx>
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#include <Geom_Plane.hxx>
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#include <HLRBRep_Algo.hxx>
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#include <HLRAlgo_Projector.hxx>
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#include <HLRBRep_HLRToShape.hxx>
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#include <TopoDS_Shape.hxx>
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#include <TopoDS.hxx>
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#include <TopoDS_Face.hxx>
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#include <TopoDS_Edge.hxx>
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#include <TopoDS_Vertex.hxx>
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#include <TopoDS_Compound.hxx>
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#include <TopExp.hxx>
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#include <TopExp_Explorer.hxx>
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#endif
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#include <chrono>
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# include <QFile>
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# include <QFileInfo>
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#include <App/Application.h>
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#include <App/Material.h>
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#include <Base/BoundBox.h>
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#include <Base/Exception.h>
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#include <Base/Console.h>
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#include <Base/Parameter.h>
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#include <Mod/Part/App/PartFeature.h>
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#include "Geometry.h"
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#include "GeometryObject.h"
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#include "EdgeWalker.h"
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#include "DrawUtil.h"
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#include "DrawProjectSplit.h"
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#include "DrawViewSection.h"
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using namespace TechDraw;
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using namespace std;
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const char* DrawViewSection::SectionDirEnums[]= {"Right",
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"Left",
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"Up",
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"Down",
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NULL};
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//===========================================================================
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// DrawViewSection
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//===========================================================================
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PROPERTY_SOURCE(TechDraw::DrawViewSection, TechDraw::DrawViewPart)
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DrawViewSection::DrawViewSection()
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{
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static const char *sgroup = "Section";
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static const char *fgroup = "Format";
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//static const char *lgroup = "Line";
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ADD_PROPERTY_TYPE(SectionSymbol ,("A"),sgroup,App::Prop_None,"The identifier for this section");
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ADD_PROPERTY_TYPE(BaseView ,(0),sgroup,App::Prop_None,"2D View source for this Section");
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ADD_PROPERTY_TYPE(SectionNormal ,(0,0,1.0) ,sgroup,App::Prop_None,"Section Plane normal direction"); //direction of extrusion of cutting prism
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ADD_PROPERTY_TYPE(SectionOrigin ,(0,0,0) ,sgroup,App::Prop_None,"Section Plane Origin");
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SectionDirection.setEnums(SectionDirEnums);
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ADD_PROPERTY_TYPE(SectionDirection,((long)0),sgroup, App::Prop_None, "Direction in Base View for this Section");
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ADD_PROPERTY_TYPE(ShowCutSurface ,(true),fgroup,App::Prop_None,"Shade the cut surface");
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ADD_PROPERTY_TYPE(CutSurfaceColor,(0.0,0.0,0.0),fgroup,App::Prop_None,"The color to shade the cut surface");
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ADD_PROPERTY_TYPE(HatchCutSurface ,(false),fgroup,App::Prop_None,"Hatch the cut surface");
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ADD_PROPERTY_TYPE(HatchPattern ,(""),fgroup,App::Prop_None,"The hatch pattern file for the cut surface");
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ADD_PROPERTY_TYPE(HatchColor,(0.0,0.0,0.0),fgroup,App::Prop_None,"The color of the hatch pattern");
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getParameters();
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}
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DrawViewSection::~DrawViewSection()
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{
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}
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short DrawViewSection::mustExecute() const
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{
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short result = 0;
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if (!isRestoring()) {
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result = (Scale.isTouched() ||
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Direction.isTouched() ||
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BaseView.isTouched() ||
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SectionNormal.isTouched() ||
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SectionOrigin.isTouched() );
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}
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if (result) {
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return result;
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}
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return TechDraw::DrawView::mustExecute();
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}
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void DrawViewSection::onChanged(const App::Property* prop)
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{
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if (!isRestoring()) {
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//Base::Console().Message("TRACE - DVS::onChanged(%s) - %s\n",prop->getName(),Label.getValue());
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if (prop == &SectionSymbol) {
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std::string lblText = "Section " +
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std::string(SectionSymbol.getValue()) +
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" - " +
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std::string(SectionSymbol.getValue());
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Label.setValue(lblText);
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}
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if (prop == &SectionOrigin) {
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App::DocumentObject* base = BaseView.getValue();
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if (base != nullptr) {
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base->touch();
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}
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}
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}
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DrawView::onChanged(prop);
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}
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App::DocumentObjectExecReturn *DrawViewSection::execute(void)
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{
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App::DocumentObject* link = Source.getValue();
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App::DocumentObject* base = BaseView.getValue();
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if (!link || !base) {
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Base::Console().Log("INFO - DVS::execute - No Source or Link - creation?\n");
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return DrawView::execute();
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}
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if (!link->getTypeId().isDerivedFrom(Part::Feature::getClassTypeId()))
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return new App::DocumentObjectExecReturn("Source object is not a Part object");
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if (!base->getTypeId().isDerivedFrom(TechDraw::DrawViewPart::getClassTypeId()))
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return new App::DocumentObjectExecReturn("BaseView object is not a DrawViewPart object");
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//Base::Console().Message("TRACE - DVS::execute() - %s/%s\n",getNameInDocument(),Label.getValue());
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const Part::TopoShape &partTopo = static_cast<Part::Feature*>(link)->Shape.getShape();
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if (partTopo.getShape().IsNull())
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return new App::DocumentObjectExecReturn("Linked shape object is empty");
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(void) DrawView::execute(); //make sure Scale is up to date
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gp_Pln pln = getSectionPlane();
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gp_Dir gpNormal = pln.Axis().Direction();
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Base::Vector3d orgPnt = SectionOrigin.getValue();
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Base::BoundBox3d bb = partTopo.getBoundBox();
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if(!isReallyInBox(orgPnt, bb)) {
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Base::Console().Warning("DVS: Section Plane doesn't intersect part in %s\n",getNameInDocument());
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Base::Console().Warning("DVS: Using center of bounding box.\n");
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orgPnt = bb.GetCenter();
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SectionOrigin.setValue(orgPnt);
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}
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// Make the extrusion face
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double dMax = bb.CalcDiagonalLength();
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BRepBuilderAPI_MakeFace mkFace(pln, -dMax,dMax,-dMax,dMax);
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TopoDS_Face aProjFace = mkFace.Face();
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if(aProjFace.IsNull())
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return new App::DocumentObjectExecReturn("DrawViewSection - Projected face is NULL");
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gp_Vec extrudeDir = dMax * gp_Vec(gpNormal);
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TopoDS_Shape prism = BRepPrimAPI_MakePrism(aProjFace, extrudeDir, false, true).Shape();
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// We need to copy the shape to not modify the BRepstructure
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BRepBuilderAPI_Copy BuilderCopy(partTopo.getShape());
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TopoDS_Shape myShape = BuilderCopy.Shape();
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BRepAlgoAPI_Cut mkCut(myShape, prism);
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if (!mkCut.IsDone())
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return new App::DocumentObjectExecReturn("Section cut has failed");
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TopoDS_Shape rawShape = mkCut.Shape();
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Bnd_Box testBox;
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BRepBndLib::Add(rawShape, testBox);
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testBox.SetGap(0.0);
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if (testBox.IsVoid()) { //prism & input don't intersect. rawShape is garbage, don't bother.
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Base::Console().Log("INFO - DVS::execute - prism & input don't intersect\n");
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return DrawView::execute();
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}
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gp_Pnt inputCenter;
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try {
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inputCenter = TechDrawGeometry::findCentroid(rawShape,
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Direction.getValue());
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TopoDS_Shape mirroredShape = TechDrawGeometry::mirrorShape(rawShape,
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inputCenter,
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Scale.getValue());
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geometryObject = buildGeometryObject(mirroredShape,inputCenter); //this is original shape after cut by section prism
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#if MOD_TECHDRAW_HANDLE_FACES
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extractFaces();
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#endif //#if MOD_TECHDRAW_HANDLE_FACES
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}
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catch (Standard_Failure) {
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Handle_Standard_Failure e1 = Standard_Failure::Caught();
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Base::Console().Log("LOG - DVS::execute - base shape failed for %s - %s **\n",getNameInDocument(),e1->GetMessageString());
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return new App::DocumentObjectExecReturn(e1->GetMessageString());
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}
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try {
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TopoDS_Compound sectionCompound = findSectionPlaneIntersections(rawShape);
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TopoDS_Shape mirroredSection = TechDrawGeometry::mirrorShape(sectionCompound,
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inputCenter,
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Scale.getValue());
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TopoDS_Compound newFaces;
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BRep_Builder builder;
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builder.MakeCompound(newFaces);
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TopExp_Explorer expl(mirroredSection, TopAbs_FACE);
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for (; expl.More(); expl.Next()) {
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const TopoDS_Face& face = TopoDS::Face(expl.Current());
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TopoDS_Face pFace = projectFace(face,
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inputCenter,
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Direction.getValue());
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if (!pFace.IsNull()) {
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builder.Add(newFaces,pFace);
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}
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}
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sectionFaces = newFaces;
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}
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catch (Standard_Failure) {
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Handle_Standard_Failure e2 = Standard_Failure::Caught();
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Base::Console().Log("LOG - DVS::execute - failed building section faces for %s - %s **\n",getNameInDocument(),e2->GetMessageString());
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return new App::DocumentObjectExecReturn(e2->GetMessageString());
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}
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return App::DocumentObject::StdReturn;
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}
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gp_Pln DrawViewSection::getSectionPlane() const
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{
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Base::Vector3d plnPnt = SectionOrigin.getValue();
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Base::Vector3d plnNorm = SectionNormal.getValue();
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gp_Ax2 viewAxis = TechDrawGeometry::getViewAxis(plnPnt,plnNorm,false);
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gp_Ax3 viewAxis3(viewAxis);
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return gp_Pln(viewAxis3);
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}
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//! tries to find the intersection of the section plane with the shape giving a collection of planar faces
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TopoDS_Compound DrawViewSection::findSectionPlaneIntersections(const TopoDS_Shape& shape)
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{
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TopoDS_Compound result;
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if(shape.IsNull()){
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Base::Console().Log("DrawViewSection::getSectionSurface - Sectional View shape is Empty\n");
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return result;
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}
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gp_Pln plnSection = getSectionPlane();
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BRep_Builder builder;
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builder.MakeCompound(result);
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TopExp_Explorer expFaces(shape, TopAbs_FACE);
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int i;
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int dbAdded = 0;
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for (i = 1 ; expFaces.More(); expFaces.Next(), i++) {
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const TopoDS_Face& face = TopoDS::Face(expFaces.Current());
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BRepAdaptor_Surface adapt(face);
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if (adapt.GetType() == GeomAbs_Plane){
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gp_Pln plnFace = adapt.Plane();
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if(plnSection.Contains(plnFace.Location(), Precision::Confusion()) &&
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plnFace.Axis().IsParallel(plnSection.Axis(), Precision::Angular())) {
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dbAdded++;
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builder.Add(result, face);
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}
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}
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}
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return result;
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}
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//! get display geometry for Section faces
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std::vector<TechDrawGeometry::Face*> DrawViewSection::getFaceGeometry()
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{
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std::vector<TechDrawGeometry::Face*> result;
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TopoDS_Compound c = sectionFaces;
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TopExp_Explorer faces(c, TopAbs_FACE);
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for (; faces.More(); faces.Next()) {
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TechDrawGeometry::Face* f = new TechDrawGeometry::Face();
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const TopoDS_Face& face = TopoDS::Face(faces.Current());
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TopExp_Explorer wires(face, TopAbs_WIRE);
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for (; wires.More(); wires.Next()) {
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TechDrawGeometry::Wire* w = new TechDrawGeometry::Wire();
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const TopoDS_Wire& wire = TopoDS::Wire(wires.Current());
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TopExp_Explorer edges(wire, TopAbs_EDGE);
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for (; edges.More(); edges.Next()) {
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const TopoDS_Edge& edge = TopoDS::Edge(edges.Current());
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//dumpEdge("edge",edgeCount,edge);
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TechDrawGeometry::BaseGeom* base = TechDrawGeometry::BaseGeom::baseFactory(edge);
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w->geoms.push_back(base);
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}
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f->wires.push_back(w);
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}
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result.push_back(f);
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}
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return result;
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}
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//! project a single face using HLR - used for section faces
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TopoDS_Face DrawViewSection::projectFace(const TopoDS_Shape &face,
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gp_Pnt faceCenter,
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const Base::Vector3d &direction)
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{
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if(face.IsNull()) {
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throw Base::Exception("DrawViewSection::projectFace - input Face is NULL");
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}
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Base::Vector3d origin(faceCenter.X(),faceCenter.Y(),faceCenter.Z());
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gp_Ax2 viewAxis = TechDrawGeometry::getViewAxis(origin,direction);
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HLRBRep_Algo *brep_hlr = new HLRBRep_Algo();
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brep_hlr->Add(face);
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HLRAlgo_Projector projector( viewAxis );
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brep_hlr->Projector(projector);
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brep_hlr->Update();
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brep_hlr->Hide();
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HLRBRep_HLRToShape hlrToShape(brep_hlr);
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TopoDS_Shape hardEdges = hlrToShape.VCompound();
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// TopoDS_Shape outEdges = hlrToShape.OutLineVCompound();
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std::vector<TopoDS_Edge> faceEdges;
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TopExp_Explorer expl(hardEdges, TopAbs_EDGE);
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int i;
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for (i = 1 ; expl.More(); expl.Next(),i++) {
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const TopoDS_Edge& edge = TopoDS::Edge(expl.Current());
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if (edge.IsNull()) {
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Base::Console().Log("INFO - DVS::projectFace - hard edge: %d is NULL\n",i);
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continue;
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}
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faceEdges.push_back(edge);
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}
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//TODO: verify that outline edges aren't required
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//if edge is both hard & outline, it will be duplicated? are hard edges enough?
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// TopExp_Explorer expl2(outEdges, TopAbs_EDGE);
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// for (i = 1 ; expl2.More(); expl2.Next(),i++) {
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// const TopoDS_Edge& edge = TopoDS::Edge(expl2.Current());
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// if (edge.IsNull()) {
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// Base::Console().Log("INFO - GO::projectFace - outline edge: %d is NULL\n",i);
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// continue;
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// }
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// bool addEdge = true;
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// //is edge already in faceEdges? maybe need to use explorer for this for IsSame to work?
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// for (auto& e:faceEdges) {
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// if (e.IsPartner(edge)) {
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// addEdge = false;
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// Base::Console().Message("TRACE - DVS::projectFace - skipping an edge 1\n");
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// }
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// }
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// expl.ReInit();
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// for (; expl.More(); expl.Next()){
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// const TopoDS_Edge& eHard = TopoDS::Edge(expl.Current());
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// if (eHard.IsPartner(edge)) {
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// addEdge = false;
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// Base::Console().Message("TRACE - DVS::projectFace - skipping an edge 2\n");
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// }
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// }
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// if (addEdge) {
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// faceEdges.push_back(edge);
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// }
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// }
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TopoDS_Face projectedFace;
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if (faceEdges.empty()) {
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Base::Console().Log("LOG - DVS::projectFace - no faceEdges\n");
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return projectedFace;
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}
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//recreate the wires for this single face
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EdgeWalker ew;
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ew.loadEdges(faceEdges);
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bool success = ew.perform();
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if (success) {
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std::vector<TopoDS_Wire> fw = ew.getResultNoDups();
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if (!fw.empty()) {
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std::vector<TopoDS_Wire> sortedWires = ew.sortStrip(fw, true);
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if (sortedWires.empty()) {
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return projectedFace;
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}
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BRepBuilderAPI_MakeFace mkFace(sortedWires.front(),true); //true => only want planes?
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std::vector<TopoDS_Wire>::iterator itWire = ++sortedWires.begin(); //starting with second face
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for (; itWire != sortedWires.end(); itWire++) {
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mkFace.Add(*itWire);
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}
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projectedFace = mkFace.Face();
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}
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} else {
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Base::Console().Warning("DVS::projectFace - input is not planar graph. No face detection\n");
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}
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return projectedFace;
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}
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//this should really be in BoundBox.h
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bool DrawViewSection::isReallyInBox (const Base::Vector3d v, const Base::BoundBox3d bb) const
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{
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if (v.x <= bb.MinX || v.x >= bb.MaxX)
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return false;
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if (v.y <= bb.MinY || v.y >= bb.MaxY)
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return false;
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if (v.z <= bb.MinZ || v.z >= bb.MaxZ)
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return false;
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return true;
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}
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//! calculate the section Normal/Projection Direction given baseView projection direction and section name
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/*static*/
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Base::Vector3d DrawViewSection::getSectionVector (const Base::Vector3d baseViewDir, const std::string sectionName)
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{
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Base::Vector3d result;
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Base::Vector3d stdX(1.0,0.0,0.0);
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Base::Vector3d stdY(0.0,1.0,0.0);
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Base::Vector3d stdZ(0.0,0.0,1.0);
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Base::Vector3d view = baseViewDir;
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view.Normalize();
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Base::Vector3d left = view.Cross(stdZ);
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left.Normalize(); //redundent?
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Base::Vector3d down = view.Cross(left);
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down.Normalize(); //redundent?
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double dot = view.Dot(stdZ);
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if (sectionName == "Up") {
|
|
result = down;
|
|
if (DrawUtil::fpCompare(fabs(dot),1.0)) {
|
|
result = (-1.0 * stdY);
|
|
}
|
|
} else if (sectionName == "Down") {
|
|
result = down * -1.0;
|
|
if (DrawUtil::fpCompare(fabs(dot),1.0)) {
|
|
result = stdY;
|
|
}
|
|
} else if (sectionName == "Left") {
|
|
result = left * -1.0;
|
|
if (DrawUtil::fpCompare(fabs(dot),1.0)) {
|
|
result = stdX;
|
|
}
|
|
} else if (sectionName == "Right") {
|
|
result = left;
|
|
if (DrawUtil::fpCompare(fabs(dot),1.0)) {
|
|
result = -1.0 * stdX;
|
|
}
|
|
} else {
|
|
Base::Console().Log("Error - DVS::getSectionVector - bad sectionName: %s\n",sectionName.c_str());
|
|
result = stdZ;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
void DrawViewSection::getParameters()
|
|
{
|
|
Base::Reference<ParameterGrp> hGrp = App::GetApplication().GetUserParameter()
|
|
.GetGroup("BaseApp")->GetGroup("Preferences")->GetGroup("Mod/TechDraw/Colors");
|
|
App::Color cutColor = App::Color((uint32_t) hGrp->GetUnsigned("CutSurfaceColor", 0xC8C8C800));
|
|
CutSurfaceColor.setValue(cutColor);
|
|
App::Color hatchColor = App::Color((uint32_t) hGrp->GetUnsigned("SectionHatchColor", 0x00000000));
|
|
HatchColor.setValue(hatchColor);
|
|
|
|
hGrp = App::GetApplication().GetUserParameter()
|
|
.GetGroup("BaseApp")->GetGroup("Preferences")->GetGroup("Mod/TechDraw");
|
|
|
|
std::string defaultDir = App::Application::getResourceDir() + "Mod/Drawing/patterns/";
|
|
std::string defaultFileName = defaultDir + "simple.svg";
|
|
QString patternFileName = QString::fromStdString(hGrp->GetASCII("PatternFile",defaultFileName.c_str()));
|
|
if (patternFileName.isEmpty()) {
|
|
patternFileName = QString::fromStdString(defaultFileName);
|
|
}
|
|
QFileInfo tfi(patternFileName);
|
|
if (tfi.isReadable()) {
|
|
HatchPattern.setValue(patternFileName.toUtf8().constData());
|
|
}
|
|
|
|
}
|
|
|
|
// Python Drawing feature ---------------------------------------------------------
|
|
|
|
namespace App {
|
|
/// @cond DOXERR
|
|
PROPERTY_SOURCE_TEMPLATE(TechDraw::DrawViewSectionPython, TechDraw::DrawViewSection)
|
|
template<> const char* TechDraw::DrawViewSectionPython::getViewProviderName(void) const {
|
|
return "TechDrawGui::ViewProviderDrawingView";
|
|
}
|
|
/// @endcond
|
|
|
|
// explicit template instantiation
|
|
template class TechDrawExport FeaturePythonT<TechDraw::DrawViewSection>;
|
|
}
|