602 lines
22 KiB
C++
602 lines
22 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 <BRep_Tool.hxx>
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#include <BRepGProp.hxx>
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#include <BRepAdaptor_Curve.hxx>
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#include <BRepBuilderAPI_MakeEdge.hxx>
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#include <BRepBuilderAPI_MakeWire.hxx>
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#include <BRepLProp_CurveTool.hxx>
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#include <BRepLProp_CLProps.hxx>
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#include <BRepExtrema_DistShapeShape.hxx>
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#include <BRepBuilderAPI_MakeFace.hxx>
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#include <BRepBndLib.hxx>
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#include <Bnd_Box.hxx>
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#include <Geom_Curve.hxx>
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#include <GeomAPI_ProjectPointOnCurve.hxx>
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#include <GProp_GProps.hxx>
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#include <gp_Ax2.hxx>
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#include <gp_Pnt.hxx>
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#include <gp_Dir.hxx>
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#include <gp_Pln.hxx>
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#include <gp_XYZ.hxx>
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#include <HLRBRep_Algo.hxx>
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#include <HLRAlgo_Projector.hxx>
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#include <HLRBRep_ShapeBounds.hxx>
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#include <HLRBRep_HLRToShape.hxx>
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#include <ShapeFix_ShapeTolerance.hxx>
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#include <ShapeExtend_WireData.hxx>
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#include <ShapeFix_Wire.hxx>
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#include <TopoDS.hxx>
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#include <TopoDS_Shape.hxx>
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#include <TopoDS_Face.hxx>
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#include <TopExp.hxx>
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#include <TopExp_Explorer.hxx>
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#include <TopTools_IndexedMapOfShape.hxx>
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#endif
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#include <limits>
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#include <algorithm>
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#include <cmath>
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#include <GeomLib_Tool.hxx>
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#include <App/Application.h>
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#include <Base/BoundBox.h>
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#include <Base/Console.h>
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#include <Base/Exception.h>
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#include <Base/FileInfo.h>
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#include <Base/Parameter.h>
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#include <Mod/Part/App/PartFeature.h>
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#include "DrawUtil.h"
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#include "DrawViewSection.h"
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#include "Geometry.h"
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#include "GeometryObject.h"
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#include "DrawViewPart.h"
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#include "DrawHatch.h"
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#include "EdgeWalker.h"
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#include <Mod/TechDraw/App/DrawViewPartPy.h> // generated from DrawViewPartPy.xml
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using namespace TechDraw;
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using namespace std;
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//===========================================================================
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// DrawViewPart
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//===========================================================================
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PROPERTY_SOURCE(TechDraw::DrawViewPart, TechDraw::DrawView)
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DrawViewPart::DrawViewPart(void) : geometryObject(0)
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{
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static const char *group = "Projection";
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static const char *fgroup = "Format";
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static const char *sgroup = "Show";
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//properties that affect Geometry
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ADD_PROPERTY_TYPE(Source ,(0),group,App::Prop_None,"3D Shape to view");
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ADD_PROPERTY_TYPE(Direction ,(0,0,1.0) ,group,App::Prop_None,"Projection direction. The direction you are looking from.");
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//properties that affect Appearance
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//visible outline
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ADD_PROPERTY_TYPE(SmoothVisible ,(false),sgroup,App::Prop_None,"Visible Smooth lines on/off");
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ADD_PROPERTY_TYPE(SeamVisible ,(false),sgroup,App::Prop_None,"Visible Seam lines on/off");
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ADD_PROPERTY_TYPE(IsoVisible ,(false),sgroup,App::Prop_None,"Visible Iso u,v lines on/off");
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ADD_PROPERTY_TYPE(HardHidden ,(false),sgroup,App::Prop_None,"Hidden Hard lines on/off");
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ADD_PROPERTY_TYPE(SmoothHidden ,(false),sgroup,App::Prop_None,"Hidden Smooth lines on/off");
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ADD_PROPERTY_TYPE(SeamHidden ,(false),sgroup,App::Prop_None,"Hidden Seam lines on/off");
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ADD_PROPERTY_TYPE(IsoHidden ,(false),sgroup,App::Prop_None,"Hidden Iso u,v lines on/off");
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ADD_PROPERTY_TYPE(IsoCount ,(0),sgroup,App::Prop_None,"Number of isoparameters");
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ADD_PROPERTY_TYPE(LineWidth,(0.7f),fgroup,App::Prop_None,"The thickness of visible lines");
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ADD_PROPERTY_TYPE(HiddenWidth,(0.15),fgroup,App::Prop_None,"The thickness of hidden lines, if enabled");
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ADD_PROPERTY_TYPE(IsoWidth,(0.30),fgroup,App::Prop_None,"The thickness of UV isoparameter lines, if enabled");
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ADD_PROPERTY_TYPE(ArcCenterMarks ,(true),sgroup,App::Prop_None,"Center marks on/off");
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ADD_PROPERTY_TYPE(CenterScale,(2.0),fgroup,App::Prop_None,"Center mark size adjustment, if enabled");
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ADD_PROPERTY_TYPE(HorizCenterLine ,(false),sgroup,App::Prop_None,"Show a horizontal centerline through view");
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ADD_PROPERTY_TYPE(VertCenterLine ,(false),sgroup,App::Prop_None,"Show a vertical centerline through view");
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//properties that affect Section Line
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ADD_PROPERTY_TYPE(ShowSectionLine ,(true) ,sgroup,App::Prop_None,"Show/hide section line if applicable");
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geometryObject = nullptr;
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getRunControl();
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}
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DrawViewPart::~DrawViewPart()
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{
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delete geometryObject;
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}
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App::DocumentObjectExecReturn *DrawViewPart::execute(void)
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{
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App::DocumentObject *link = Source.getValue();
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if (!link) {
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return new App::DocumentObjectExecReturn("FVP - No Source object linked");
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}
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if (!link->getTypeId().isDerivedFrom(Part::Feature::getClassTypeId())) {
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return new App::DocumentObjectExecReturn("FVP - Linked object is not a Part object");
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}
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TopoDS_Shape shape = static_cast<Part::Feature*>(link)->Shape.getShape().getShape();
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if (shape.IsNull()) {
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return new App::DocumentObjectExecReturn("FVP - Linked shape object is empty");
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}
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Base::Console().Message("TRACE - DVP::execute() - %s - %s - dir: %s\n",getNameInDocument(), Label.getValue(),DrawUtil::formatVector(Direction.getValue()).c_str());
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(void) DrawView::execute(); //make sure Scale is up to date
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gp_Pnt inputCenter;
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inputCenter = TechDrawGeometry::findCentroid(shape,
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Direction.getValue());
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shapeCentroid = Base::Vector3d(inputCenter.X(),inputCenter.Y(),inputCenter.Z());
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TopoDS_Shape mirroredShape;
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mirroredShape = TechDrawGeometry::mirrorShape(shape,
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inputCenter,
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Scale.getValue());
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gp_Ax2 viewAxis = getViewAxis(shapeCentroid,Direction.getValue());
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geometryObject = buildGeometryObject(mirroredShape,viewAxis);
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#if MOD_TECHDRAW_HANDLE_FACES
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if (handleFaces()) {
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try {
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extractFaces();
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}
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catch (Standard_Failure) {
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Handle_Standard_Failure e4 = Standard_Failure::Caught();
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Base::Console().Log("LOG - DVP::execute - extractFaces failed for %s - %s **\n",getNameInDocument(),e4->GetMessageString());
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return new App::DocumentObjectExecReturn(e4->GetMessageString());
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}
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}
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#endif //#if MOD_TECHDRAW_HANDLE_FACES
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Base::Console().Message("TRACE _ DVP::exec - %s/%s u: %s v: %s w: %s\n",getNameInDocument(),Label.getValue(),
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DrawUtil::formatVector(getUDir()).c_str(), DrawUtil::formatVector(getVDir()).c_str(),DrawUtil::formatVector(getWDir()).c_str());
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return App::DocumentObject::StdReturn;
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}
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short DrawViewPart::mustExecute() const
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{
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short result = 0;
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if (!isRestoring()) {
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result = (Direction.isTouched() ||
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Source.isTouched() ||
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Scale.isTouched() ||
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ScaleType.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 DrawViewPart::onChanged(const App::Property* prop)
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{
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DrawView::onChanged(prop);
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//TODO: when scale changes, any Dimensions for this View sb recalculated. DVD should pick this up subject to topological naming issues.
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}
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//note: slightly different than routine with same name in DrawProjectSplit
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TechDrawGeometry::GeometryObject* DrawViewPart::buildGeometryObject(TopoDS_Shape shape, gp_Ax2 viewAxis)
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{
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TechDrawGeometry::GeometryObject* go = new TechDrawGeometry::GeometryObject(getNameInDocument());
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go->setIsoCount(IsoCount.getValue());
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Base::Vector3d baseProjDir = Direction.getValue();
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saveParamSpace(baseProjDir);
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go->projectShape(shape,
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viewAxis);
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go->extractGeometry(TechDrawGeometry::ecHARD, //always show the hard&outline visible lines
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true);
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go->extractGeometry(TechDrawGeometry::ecOUTLINE,
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true);
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if (SmoothVisible.getValue()) {
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go->extractGeometry(TechDrawGeometry::ecSMOOTH,
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true);
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}
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if (SeamVisible.getValue()) {
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go->extractGeometry(TechDrawGeometry::ecSEAM,
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true);
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}
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if ((IsoVisible.getValue()) && (IsoCount.getValue() > 0)) {
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go->extractGeometry(TechDrawGeometry::ecUVISO,
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true);
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}
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if (HardHidden.getValue()) {
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go->extractGeometry(TechDrawGeometry::ecHARD,
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false);
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go->extractGeometry(TechDrawGeometry::ecOUTLINE,
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false);
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}
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if (SmoothHidden.getValue()) {
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go->extractGeometry(TechDrawGeometry::ecSMOOTH,
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false);
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}
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if (SeamHidden.getValue()) {
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go->extractGeometry(TechDrawGeometry::ecSEAM,
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false);
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}
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if (IsoHidden.getValue() && (IsoCount.getValue() > 0)) {
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go->extractGeometry(TechDrawGeometry::ecUVISO,
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false);
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}
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bbox = go->calcBoundingBox();
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return go;
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}
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//! make faces from the existing edge geometry
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void DrawViewPart::extractFaces()
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{
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geometryObject->clearFaceGeom();
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const std::vector<TechDrawGeometry::BaseGeom*>& goEdges =
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geometryObject->getVisibleFaceEdges(SmoothVisible.getValue(),SeamVisible.getValue());
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std::vector<TechDrawGeometry::BaseGeom*>::const_iterator itEdge = goEdges.begin();
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std::vector<TopoDS_Edge> origEdges;
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for (;itEdge != goEdges.end(); itEdge++) {
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origEdges.push_back((*itEdge)->occEdge);
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}
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std::vector<TopoDS_Edge> faceEdges;
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std::vector<TopoDS_Edge> nonZero;
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for (auto& e:origEdges) { //drop any zero edges (shouldn't be any by now!!!)
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if (!DrawUtil::isZeroEdge(e)) {
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nonZero.push_back(e);
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} else {
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Base::Console().Message("INFO - DVP::extractFaces for %s found ZeroEdge!\n",getNameInDocument());
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}
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}
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faceEdges = nonZero;
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origEdges = nonZero;
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//HLR algo does not provide all edge intersections for edge endpoints.
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//need to split long edges touched by Vertex of another edge
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std::vector<splitPoint> splits;
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std::vector<TopoDS_Edge>::iterator itOuter = origEdges.begin();
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int iOuter = 0;
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for (; itOuter != origEdges.end(); ++itOuter, iOuter++) {
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TopoDS_Vertex v1 = TopExp::FirstVertex((*itOuter));
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TopoDS_Vertex v2 = TopExp::LastVertex((*itOuter));
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Bnd_Box sOuter;
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BRepBndLib::Add(*itOuter, sOuter);
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sOuter.SetGap(0.1);
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if (sOuter.IsVoid()) {
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Base::Console().Message("DVP::Extract Faces - outer Bnd_Box is void for %s\n",getNameInDocument());
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continue;
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}
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if (DrawUtil::isZeroEdge(*itOuter)) {
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Base::Console().Message("DVP::extractFaces - outerEdge: %d is ZeroEdge\n",iOuter); //this is not finding ZeroEdges
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continue; //skip zero length edges. shouldn't happen ;)
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}
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int iInner = 0;
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std::vector<TopoDS_Edge>::iterator itInner = faceEdges.begin();
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for (; itInner != faceEdges.end(); ++itInner,iInner++) {
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if (iInner == iOuter) {
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continue;
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}
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if (DrawUtil::isZeroEdge((*itInner))) {
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continue; //skip zero length edges. shouldn't happen ;)
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}
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Bnd_Box sInner;
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BRepBndLib::Add(*itInner, sInner);
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sInner.SetGap(0.1);
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if (sInner.IsVoid()) {
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Base::Console().Log("INFO - DVP::Extract Faces - inner Bnd_Box is void for %s\n",getNameInDocument());
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continue;
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}
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if (sOuter.IsOut(sInner)) { //bboxes of edges don't intersect, don't bother
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continue;
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}
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double param = -1;
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if (DrawProjectSplit::isOnEdge((*itInner),v1,param,false)) {
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gp_Pnt pnt1 = BRep_Tool::Pnt(v1);
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splitPoint s1;
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s1.i = iInner;
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s1.v = Base::Vector3d(pnt1.X(),pnt1.Y(),pnt1.Z());
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s1.param = param;
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splits.push_back(s1);
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}
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if (DrawProjectSplit::isOnEdge((*itInner),v2,param,false)) {
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gp_Pnt pnt2 = BRep_Tool::Pnt(v2);
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splitPoint s2;
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s2.i = iInner;
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s2.v = Base::Vector3d(pnt2.X(),pnt2.Y(),pnt2.Z());
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s2.param = param;
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splits.push_back(s2);
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}
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} //inner loop
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} //outer loop
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std::vector<splitPoint> sorted = DrawProjectSplit::sortSplits(splits,true);
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auto last = std::unique(sorted.begin(), sorted.end(), DrawProjectSplit::splitEqual); //duplicates to back
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sorted.erase(last, sorted.end()); //remove dupl splits
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std::vector<TopoDS_Edge> newEdges = DrawProjectSplit::splitEdges(faceEdges,sorted);
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if (newEdges.empty()) {
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Base::Console().Log("LOG - DVP::extractFaces - no newEdges\n");
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return;
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}
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newEdges = DrawProjectSplit::removeDuplicateEdges(newEdges); //<<< here
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//find all the wires in the pile of faceEdges
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EdgeWalker ew;
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ew.loadEdges(newEdges);
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bool success = ew.perform();
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if (!success) {
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Base::Console().Warning("DVP::extractFaces - input is not planar graph. No face detection\n");
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return;
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}
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std::vector<TopoDS_Wire> fw = ew.getResultNoDups();
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std::vector<TopoDS_Wire> sortedWires = ew.sortStrip(fw,true);
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std::vector<TopoDS_Wire>::iterator itWire = sortedWires.begin();
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for (; itWire != sortedWires.end(); itWire++) {
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//version 1: 1 wire/face - no voids in face
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TechDrawGeometry::Face* f = new TechDrawGeometry::Face();
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const TopoDS_Wire& wire = (*itWire);
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TechDrawGeometry::Wire* w = new TechDrawGeometry::Wire(wire);
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f->wires.push_back(w);
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geometryObject->addFaceGeom(f);
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}
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}
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std::vector<TechDraw::DrawHatch*> DrawViewPart::getHatches() const
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{
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std::vector<TechDraw::DrawHatch*> result;
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std::vector<App::DocumentObject*> children = getInList();
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for (std::vector<App::DocumentObject*>::iterator it = children.begin(); it != children.end(); ++it) {
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if ((*it)->getTypeId().isDerivedFrom(DrawHatch::getClassTypeId())) {
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TechDraw::DrawHatch* hatch = dynamic_cast<TechDraw::DrawHatch*>(*it);
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result.push_back(hatch);
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}
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}
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return result;
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}
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const std::vector<TechDrawGeometry::Vertex *> & DrawViewPart::getVertexGeometry() const
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{
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return geometryObject->getVertexGeometry();
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}
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const std::vector<TechDrawGeometry::Face *> & DrawViewPart::getFaceGeometry() const
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{
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return geometryObject->getFaceGeometry();
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}
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const std::vector<TechDrawGeometry::BaseGeom *> & DrawViewPart::getEdgeGeometry() const
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{
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return geometryObject->getEdgeGeometry();
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}
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//! returns existing BaseGeom of 2D Edge(idx)
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TechDrawGeometry::BaseGeom* DrawViewPart::getProjEdgeByIndex(int idx) const
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{
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const std::vector<TechDrawGeometry::BaseGeom *> &geoms = getEdgeGeometry();
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if (geoms.empty()) {
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Base::Console().Log("INFO - getProjEdgeByIndex(%d) - no Edge Geometry. Probably restoring?\n",idx);
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return NULL;
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}
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return geoms[idx];
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}
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//! returns existing geometry of 2D Vertex(idx)
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TechDrawGeometry::Vertex* DrawViewPart::getProjVertexByIndex(int idx) const
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{
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const std::vector<TechDrawGeometry::Vertex *> &geoms = getVertexGeometry();
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if (geoms.empty()) {
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Base::Console().Log("INFO - getProjVertexByIndex(%d) - no Vertex Geometry. Probably restoring?\n",idx);
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return NULL;
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}
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return geoms[idx];
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}
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//! returns existing geometry of 2D Face(idx)
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//version 1 Face has 1 wire
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std::vector<TechDrawGeometry::BaseGeom*> DrawViewPart::getProjFaceByIndex(int /*idx*/) const
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{
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std::vector<TechDrawGeometry::BaseGeom*> result;
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const std::vector<TechDrawGeometry::Face *>& faces = getFaceGeometry();
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for (auto& f:faces) {
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for (auto& w:f->wires) {
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for (auto& g:w->geoms) {
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result.push_back(g);
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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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Base::BoundBox3d DrawViewPart::getBoundingBox() const
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{
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return bbox;
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}
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double DrawViewPart::getBoxX(void) const
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{
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Base::BoundBox3d bbx = getBoundingBox(); //bbox is already scaled & centered!
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return (bbx.MaxX - bbx.MinX);
|
|
}
|
|
|
|
double DrawViewPart::getBoxY(void) const
|
|
{
|
|
Base::BoundBox3d bbx = getBoundingBox();
|
|
return (bbx.MaxY - bbx.MinY);
|
|
}
|
|
|
|
QRectF DrawViewPart::getRect() const
|
|
{
|
|
double x = getBoxX();
|
|
double y = getBoxY();
|
|
QRectF result;
|
|
if (std::isinf(x) || std::isinf(y)) {
|
|
//geometry isn't created yet. return an arbitrary rect.
|
|
result = QRectF(0.0,0.0,100.0,100.0);
|
|
} else {
|
|
result = QRectF(0.0,0.0,getBoxX(),getBoxY()); //this is from GO and is already scaled
|
|
}
|
|
return result;
|
|
}
|
|
|
|
//used to project pt (ex SectionOrigin) onto paper plane
|
|
Base::Vector3d DrawViewPart::projectPoint(const Base::Vector3d& pt) const
|
|
{
|
|
Base::Vector3d centeredPoint = pt - shapeCentroid;
|
|
Base::Vector3d direction = Direction.getValue();
|
|
gp_Ax2 viewAxis = getViewAxis(centeredPoint,direction);
|
|
HLRAlgo_Projector projector( viewAxis );
|
|
gp_Pnt2d prjPnt;
|
|
projector.Project(gp_Pnt(centeredPoint.x,centeredPoint.y,centeredPoint.z), prjPnt);
|
|
return Base::Vector3d(prjPnt.X(),prjPnt.Y(), 0.0);
|
|
}
|
|
|
|
bool DrawViewPart::hasGeometry(void) const
|
|
{
|
|
bool result = false;
|
|
if (geometryObject == nullptr) {
|
|
return result;
|
|
}
|
|
const std::vector<TechDrawGeometry::Vertex*> &verts = getVertexGeometry();
|
|
const std::vector<TechDrawGeometry::BaseGeom*> &edges = getEdgeGeometry();
|
|
if (verts.empty() &&
|
|
edges.empty() ) {
|
|
result = false;
|
|
} else {
|
|
result = true;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
//boring here. gets more interesting in descendents.
|
|
gp_Ax2 DrawViewPart::getViewAxis(const Base::Vector3d& pt,
|
|
const Base::Vector3d& axis,
|
|
const bool flip,
|
|
const Base::Vector3d& xAxis) const
|
|
{
|
|
(void)xAxis;
|
|
gp_Ax2 viewAxis = TechDrawGeometry::getViewAxis(pt,axis,flip);
|
|
return viewAxis;
|
|
}
|
|
|
|
//this might have to be virtual for dpgi?
|
|
void DrawViewPart::saveParamSpace(const Base::Vector3d& direction, const Base::Vector3d& xAxis)
|
|
{
|
|
(void)xAxis;
|
|
Base::Vector3d origin(0.0,0.0,0.0);
|
|
gp_Ax2 viewAxis = getViewAxis(origin,direction);
|
|
|
|
gp_Dir xdir = viewAxis.XDirection();
|
|
uDir = Base::Vector3d(xdir.X(),xdir.Y(),xdir.Z());
|
|
gp_Dir ydir = viewAxis.YDirection();
|
|
vDir = Base::Vector3d(ydir.X(),ydir.Y(),ydir.Z());
|
|
wDir = Base::Vector3d(direction.x, -direction.y, direction.z);
|
|
wDir.Normalize();
|
|
}
|
|
|
|
|
|
std::vector<DrawViewSection*> DrawViewPart::getSectionRefs(void) const
|
|
{
|
|
std::vector<DrawViewSection*> result;
|
|
std::vector<App::DocumentObject*> inObjs = getInList();
|
|
for (auto& o:inObjs) {
|
|
if (o->getTypeId().isDerivedFrom(DrawViewSection::getClassTypeId())) {
|
|
result.push_back(static_cast<TechDraw::DrawViewSection*>(o));
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
const std::vector<TechDrawGeometry::BaseGeom *> DrawViewPart::getVisibleFaceEdges() const
|
|
{
|
|
return geometryObject->getVisibleFaceEdges(SmoothVisible.getValue(),SeamVisible.getValue());
|
|
}
|
|
|
|
void DrawViewPart::getRunControl()
|
|
{
|
|
Base::Reference<ParameterGrp> hGrp = App::GetApplication().GetUserParameter()
|
|
.GetGroup("BaseApp")->GetGroup("Preferences")->GetGroup("Mod/TechDraw/General");
|
|
m_sectionEdges = hGrp->GetBool("ShowSectionEdges", 1l);
|
|
m_handleFaces = hGrp->GetBool("HandleFaces", 1l);
|
|
}
|
|
|
|
bool DrawViewPart::handleFaces(void)
|
|
{
|
|
return m_handleFaces;
|
|
}
|
|
|
|
bool DrawViewPart::showSectionEdges(void)
|
|
{
|
|
return m_sectionEdges;
|
|
}
|
|
|
|
PyObject *DrawViewPart::getPyObject(void)
|
|
{
|
|
if (PythonObject.is(Py::_None())) {
|
|
// ref counter is set to 1
|
|
PythonObject = Py::Object(new DrawViewPartPy(this),true);
|
|
}
|
|
return Py::new_reference_to(PythonObject);
|
|
}
|
|
|
|
|
|
// Python Drawing feature ---------------------------------------------------------
|
|
|
|
namespace App {
|
|
/// @cond DOXERR
|
|
PROPERTY_SOURCE_TEMPLATE(TechDraw::DrawViewPartPython, TechDraw::DrawViewPart)
|
|
template<> const char* TechDraw::DrawViewPartPython::getViewProviderName(void) const {
|
|
return "TechDrawGui::ViewProviderViewPart";
|
|
}
|
|
/// @endcond
|
|
|
|
// explicit template instantiation
|
|
template class TechDrawExport FeaturePythonT<TechDraw::DrawViewPart>;
|
|
}
|