631 lines
22 KiB
C++
631 lines
22 KiB
C++
/***************************************************************************
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* Copyright (c) 2015 WandererFan <wandererfan@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 <iomanip>
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# include <sstream>
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#include <Bnd_Box.hxx>
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#include <BRep_Builder.hxx>
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#include <BRepAlgoAPI_Common.hxx>
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#include <BRepBndLib.hxx>
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#include <BRepBuilderAPI_MakeEdge.hxx>
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#include <BRepBuilderAPI_MakeFace.hxx>
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#include <BRepBuilderAPI_MakeVertex.hxx>
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#include <BRepBuilderAPI_Transform.hxx>
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#include <gp_Pln.hxx>
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#include <gp_Pnt.hxx>
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#include <Precision.hxx>
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#include <TopExp.hxx>
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#include <TopoDS_Vertex.hxx>
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#include <TopoDS_Wire.hxx>
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#include <TopoDS_Edge.hxx>
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#include <TopoDS_Face.hxx>
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#include <TopoDS_Compound.hxx>
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#include <TopTools_IndexedMapOfShape.hxx>
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#endif
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#include <App/Application.h>
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#include <App/Document.h>
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#include <Base/Console.h>
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#include <Base/FileInfo.h>
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#include <Base/Parameter.h>
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#include "DrawGeomHatch.h"
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#include "DrawGeomHatchPy.h" // generated from DrawGeomHatchPy.xml
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#include "DrawUtil.h"
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#include "DrawViewPart.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 "HatchLine.h"
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#include "Preferences.h"
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using namespace TechDraw;
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App::PropertyFloatConstraint::Constraints DrawGeomHatch::scaleRange = {
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Precision::Confusion(), std::numeric_limits<double>::max(), (0.1)}; // increment by 0.1
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PROPERTY_SOURCE(TechDraw::DrawGeomHatch, App::DocumentObject)
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DrawGeomHatch::DrawGeomHatch()
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{
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static const char *vgroup = "GeomHatch";
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ADD_PROPERTY_TYPE(Source, (nullptr), vgroup, App::PropertyType::Prop_None,
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"The View + Face to be crosshatched");
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Source.setScope(App::LinkScope::Global);
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ADD_PROPERTY_TYPE(FilePattern, (prefGeomHatchFile()), vgroup, App::Prop_None,
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"The crosshatch pattern file for this area");
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ADD_PROPERTY_TYPE(PatIncluded, (""), vgroup, App::Prop_None,
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"Embedded Pat hatch file. System use only.");// n/a to end users
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ADD_PROPERTY_TYPE(NamePattern, (prefGeomHatchName()), vgroup, App::Prop_None,
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"The name of the pattern");
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ADD_PROPERTY_TYPE(ScalePattern, (1.0), vgroup, App::Prop_None,
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"GeomHatch pattern size adjustment");
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ScalePattern.setConstraints(&scaleRange);
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ADD_PROPERTY_TYPE(PatternRotation, (0.0), vgroup, App::Prop_None,
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"Pattern rotation in degrees anticlockwise");
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ADD_PROPERTY_TYPE(PatternOffset, (0.0, 0.0, 0.0), vgroup, App::Prop_None,
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"Pattern offset");
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m_saveFile = "";
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m_saveName = "";
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std::string patFilter("pat files (*.pat *.PAT);;All files (*)");
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FilePattern.setFilter(patFilter);
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}
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void DrawGeomHatch::onChanged(const App::Property* prop)
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{
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if (isRestoring()) {
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App::DocumentObject::onChanged(prop);
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return;
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}
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if (prop == &Source) {
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//rebuild the linesets
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makeLineSets();
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}
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if (prop == &FilePattern) {
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replacePatIncluded(FilePattern.getValue());
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makeLineSets();
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}
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if (prop == &NamePattern) {
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makeLineSets();
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}
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App::DocumentObject::onChanged(prop);
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}
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App::DocumentObjectExecReturn *DrawGeomHatch::execute()
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{
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// Base::Console().Message("DGH::execute()\n");
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//does execute even need to exist? Its all about the property value changes
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DrawViewPart* parent = getSourceView();
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if (parent) {
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parent->requestPaint();
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}
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return App::DocumentObject::StdReturn;
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}
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void DrawGeomHatch::onDocumentRestored()
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{
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//rebuild the linesets
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makeLineSets();
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App::DocumentObject::onDocumentRestored();
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}
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void DrawGeomHatch::replacePatIncluded(std::string newHatchFileName)
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{
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// Base::Console().Message("DGH::replaceFileIncluded(%s)\n", newHatchFileName.c_str());
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if (newHatchFileName.empty()) {
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return;
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}
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Base::FileInfo tfi(newHatchFileName);
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if (tfi.isReadable()) {
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PatIncluded.setValue(newHatchFileName.c_str());
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} else {
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throw Base::RuntimeError("Could not read the new PAT file");
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}
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}
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void DrawGeomHatch::setupObject()
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{
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// Base::Console().Message("DGH::setupObject()\n");
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replacePatIncluded(FilePattern.getValue());
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}
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void DrawGeomHatch::unsetupObject()
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{
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// Base::Console().Message("DGH::unsetupObject() - status: %lu removing: %d \n", getStatus(), isRemoving());
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App::DocumentObject* source = Source.getValue();
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DrawView* dv = dynamic_cast<DrawView*>(source);
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if (dv) {
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dv->requestPaint();
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}
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App::DocumentObject::unsetupObject();
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}
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//-----------------------------------------------------------------------------------
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void DrawGeomHatch::makeLineSets()
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{
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// Base::Console().Message("DGH::makeLineSets()\n");
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if (!PatIncluded.isEmpty() &&
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!NamePattern.isEmpty()) {
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m_lineSets.clear();
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m_lineSets = makeLineSets(PatIncluded.getValue(),
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NamePattern.getValue());
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}
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}
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/*static*/
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std::vector<LineSet> DrawGeomHatch::makeLineSets(std::string fileSpec, std::string myPattern)
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{
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std::vector<LineSet> lineSets;
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if (fileSpec.empty() && myPattern.empty()) {
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return lineSets;
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}
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std::vector<PATLineSpec> specs =
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DrawGeomHatch::getDecodedSpecsFromFile(fileSpec,
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myPattern);
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for (auto& hl: specs) {
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//hl.dump("hl from section");
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LineSet ls;
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ls.setPATLineSpec(hl);
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lineSets.push_back(ls);
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}
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return lineSets;
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}
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DrawViewPart* DrawGeomHatch::getSourceView() const
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{
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App::DocumentObject* obj = Source.getValue();
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DrawViewPart* result = dynamic_cast<DrawViewPart*>(obj);
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return result;
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}
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std::vector<PATLineSpec> DrawGeomHatch::getDecodedSpecsFromFile()
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{
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std::string fileSpec = PatIncluded.getValue();
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std::string myPattern = NamePattern.getValue();
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return getDecodedSpecsFromFile(fileSpec, myPattern);
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}
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//!get all the specification lines and decode them into PATLineSpec structures
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/*static*/
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std::vector<PATLineSpec> DrawGeomHatch::getDecodedSpecsFromFile(std::string fileSpec, std::string myPattern)
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{
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Base::FileInfo fi(fileSpec);
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if (!fi.isReadable()) {
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Base::Console().Error("DrawGeomHatch::getDecodedSpecsFromFile not able to open %s!\n", fileSpec.c_str());
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return std::vector<PATLineSpec>();
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}
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return PATLineSpec::getSpecsForPattern(fileSpec, myPattern);
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}
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std::vector<LineSet> DrawGeomHatch::getTrimmedLines(int i) //get the trimmed hatch lines for face i
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{
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if (m_lineSets.empty()) {
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makeLineSets();
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}
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DrawViewPart* source = getSourceView();
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if (!source ||
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!source->hasGeometry()) {
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return std::vector<LineSet>();
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}
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return getTrimmedLines(source, m_lineSets, i, ScalePattern.getValue(),
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PatternRotation.getValue(), PatternOffset.getValue());
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}
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/* static */
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std::vector<LineSet> DrawGeomHatch::getTrimmedLinesSection(DrawViewSection* source,
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std::vector<LineSet> lineSets,
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TopoDS_Face f,
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double scale,
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double hatchRotation,
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Base::Vector3d hatchOffset)
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{
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std::vector<LineSet> result;
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gp_Pln p;
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Base::Vector3d vfc = DrawUtil::getFaceCenter(f);
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gp_Pnt fc(vfc.x, vfc.y, vfc.z);
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double dir = -1.0;
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if (fc.Z() < 0.0) {
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dir = -dir;
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}
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Base::Vector3d stdZ(0.0, 0.0, 1.0);
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Base::Vector3d offset = stdZ * p.Distance(fc) * dir;
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//f may be above or below paper plane and must be moved so Common operation in
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//getTrimmedLines succeeds
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TopoDS_Shape moved = TechDraw::moveShape(f,
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offset);
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TopoDS_Face fMoved = TopoDS::Face(GeometryObject::invertGeometry(moved));
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return getTrimmedLines(
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source,
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lineSets,
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fMoved,
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scale,
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hatchRotation,
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hatchOffset
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);
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}
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//! get hatch lines trimmed to face outline
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std::vector<LineSet> DrawGeomHatch::getTrimmedLines(DrawViewPart* source, std::vector<LineSet> lineSets,
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int iface, double scale, double hatchRotation ,
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Base::Vector3d hatchOffset)
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{
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TopoDS_Face face = extractFace(source, iface);
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return getTrimmedLines(
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source,
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lineSets,
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face,
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scale,
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hatchRotation,
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hatchOffset
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);
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}
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std::vector<LineSet> DrawGeomHatch::getTrimmedLines(DrawViewPart* source,
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std::vector<LineSet> lineSets,
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TopoDS_Face f,
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double scale,
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double hatchRotation,
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Base::Vector3d hatchOffset)
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{
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// Base::Console().Message("DGH::getTrimmedLines() - rotation: %.3f hatchOffset: %s\n", hatchRotation, DrawUtil::formatVector(hatchOffset).c_str());
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(void)source;
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std::vector<LineSet> result;
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if (lineSets.empty()) {
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return result;
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}
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TopoDS_Face face = f;
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Bnd_Box bBox;
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BRepBndLib::AddOptimal(face, bBox);
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bBox.SetGap(0.0);
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for (auto& ls: lineSets) {
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PATLineSpec hl = ls.getPATLineSpec();
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std::vector<TopoDS_Edge> candidates = DrawGeomHatch::makeEdgeOverlay(hl, bBox, scale); //completely cover face bbox with lines
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//make Compound for this linespec
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BRep_Builder builder;
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TopoDS_Compound gridComp;
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builder.MakeCompound(gridComp);
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for (auto& c: candidates) {
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builder.Add(gridComp, c);
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}
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TopoDS_Shape grid = gridComp;
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if (hatchRotation != 0.0) {
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double hatchRotationRad = hatchRotation * M_PI / 180.0;
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gp_Ax1 gridAxis(gp_Pnt(0.0, 0.0, 0.0), gp_Vec(gp::OZ().Direction()));
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gp_Trsf xGridRotate;
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xGridRotate.SetRotation(gridAxis, hatchRotationRad);
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BRepBuilderAPI_Transform mkTransRotate(grid, xGridRotate, true);
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grid = mkTransRotate.Shape();
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}
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gp_Trsf xGridTranslate;
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xGridTranslate.SetTranslation(DrawUtil::togp_Vec(hatchOffset));
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BRepBuilderAPI_Transform mkTransTranslate(grid, xGridTranslate, true);
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grid = mkTransTranslate.Shape();
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//Common(Compound, Face)
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BRepAlgoAPI_Common mkCommon(face, grid);
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if (!mkCommon.IsDone() ||
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mkCommon.Shape().IsNull()) {
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return result;
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}
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TopoDS_Shape common = mkCommon.Shape();
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//save the boundingBox of hatch pattern
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Bnd_Box overlayBox;
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overlayBox.SetGap(0.0);
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BRepBndLib::AddOptimal(common, overlayBox);
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ls.setBBox(overlayBox);
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//get resulting edges
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std::vector<TopoDS_Edge> resultEdges;
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TopTools_IndexedMapOfShape mapOfEdges;
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TopExp::MapShapes(common, TopAbs_EDGE, mapOfEdges);
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for ( int i = 1 ; i <= mapOfEdges.Extent() ; i++ ) { //remember, TopExp makes no promises about the order it finds edges
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const TopoDS_Edge& edge = TopoDS::Edge(mapOfEdges(i));
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if (edge.IsNull()) {
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continue;
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}
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resultEdges.push_back(edge);
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}
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std::vector<TechDraw::BaseGeomPtr> resultGeoms;
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for (auto& e: resultEdges) {
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TechDraw::BaseGeomPtr base = BaseGeom::baseFactory(e);
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if (!base) {
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throw Base::ValueError("DGH::getTrimmedLines - baseFactory failed");
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}
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resultGeoms.push_back(base);
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}
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ls.setEdges(resultEdges);
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ls.setGeoms(resultGeoms);
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result.push_back(ls);
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}
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return result;
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}
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/* static */
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std::vector<TopoDS_Edge> DrawGeomHatch::makeEdgeOverlay(PATLineSpec hl, Bnd_Box b, double scale)
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{
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std::vector<TopoDS_Edge> result;
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double minX, maxX, minY, maxY, minZ, maxZ;
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b.Get(minX, minY, minZ, maxX, maxY, maxZ);
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//make the overlay bigger to cover rotations. might need to be bigger than 2x.
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double centerX = (minX + maxX) / 2.0;
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double widthX = maxX - minX;
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minX = centerX - widthX;
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maxX = centerX + widthX;
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double centerY = (minY + maxY) / 2.0;
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double widthY = maxY - minY;
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minY = centerY - widthY;
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maxY = centerY + widthY;
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Base::Vector3d start;
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Base::Vector3d end;
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Base::Vector3d origin = hl.getOrigin();
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double interval = hl.getIntervalX() * scale;
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double angle = hl.getAngle();
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//only dealing with angles -180:180 for now
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if (angle > 90.0) {
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angle = -(180.0 - angle);
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} else if (angle < -90.0) {
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angle = (180 + angle);
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}
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double slope = hl.getSlope();
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if (angle == 0.0) { //odd case 1: horizontal lines
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interval = hl.getInterval() * scale;
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double atomY = origin.y;
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int repeatUp = (int) fabs((maxY - atomY)/interval);
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int repeatDown = (int) fabs(((atomY - minY)/interval));
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int repeatTotal = repeatUp + repeatDown + 1;
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double yStart = atomY - repeatDown * interval;
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// make repeats
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for (int i = 0; i < repeatTotal; i++) {
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Base::Vector3d newStart(minX, yStart + float(i)*interval, 0);
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Base::Vector3d newEnd(maxX, yStart + float(i)*interval, 0);
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TopoDS_Edge newLine = makeLine(newStart, newEnd);
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result.push_back(newLine);
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}
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} else if (angle == 90.0 ||
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angle == -90.0) { //odd case 2: vertical lines
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interval = hl.getInterval() * scale;
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double atomX = origin.x;
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int repeatRight = (int) fabs((maxX - atomX)/interval);
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int repeatLeft = (int) fabs((atomX - minX)/interval);
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int repeatTotal = repeatRight + repeatLeft + 1;
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double xStart = atomX - repeatLeft * interval;
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// make repeats
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for (int i = 0; i < repeatTotal; i++) {
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Base::Vector3d newStart(xStart + float(i)*interval, minY, 0);
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Base::Vector3d newEnd(xStart + float(i)*interval, maxY, 0);
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TopoDS_Edge newLine = makeLine(newStart, newEnd);
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result.push_back(newLine);
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}
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//TODO: check if this makes 2-3 extra lines. might be some "left" lines on "right" side of vv
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} else if (angle > 0) { //oblique (bottom left -> top right)
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//ex: 60, 0,0, 0,4.0, 25, -25
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// Base::Console().Message("TRACE - DGH-makeEdgeOverlay - making angle > 0\n");
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double xLeftAtom = origin.x + (minY - origin.y)/slope; //the "atom" is the fill line that passes through the
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//pattern-origin (not necc. R2 origin)
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double xRightAtom = origin.x + (maxY - origin.y)/slope;
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int repeatRight = (int) fabs((maxX - xLeftAtom)/interval);
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int repeatLeft = (int) fabs((xRightAtom - minX)/interval);
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double leftStartX = xLeftAtom - (repeatLeft * interval);
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double leftEndX = xRightAtom - (repeatLeft * interval);
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int repeatTotal = repeatRight + repeatLeft + 1;
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//make repeats
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for (int i = 0; i < repeatTotal; i++) {
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Base::Vector3d newStart(leftStartX + (float(i) * interval), minY, 0);
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Base::Vector3d newEnd (leftEndX + (float(i) * interval), maxY, 0);
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TopoDS_Edge newLine = makeLine(newStart, newEnd);
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result.push_back(newLine);
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}
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} else { //oblique (bottom right -> top left)
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// ex: -60, 0,0, 0,4.0, 25.0, -12.5, 12.5, -6
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// Base::Console().Message("TRACE - DGH-makeEdgeOverlay - making angle < 0\n");
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double xRightAtom = origin.x + ((minY - origin.y)/slope); //x-coord of left end of Atom line
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double xLeftAtom = origin.x + ((maxY - origin.y)/slope); //x-coord of right end of Atom line
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int repeatRight = (int) fabs((maxX - xLeftAtom)/interval); //number of lines to Right of Atom
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int repeatLeft = (int) fabs((xRightAtom - minX)/interval); //number of lines to Left of Atom
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double leftEndX = xLeftAtom - (repeatLeft * interval);
|
|
double leftStartX = xRightAtom - (repeatLeft * interval);
|
|
int repeatTotal = repeatRight + repeatLeft + 1;
|
|
|
|
// make repeats
|
|
for (int i = 0; i < repeatTotal; i++) {
|
|
Base::Vector3d newStart(leftStartX + float(i)*interval, minY, 0);
|
|
Base::Vector3d newEnd(leftEndX + float(i)*interval, maxY, 0);
|
|
TopoDS_Edge newLine = makeLine(newStart, newEnd);
|
|
result.push_back(newLine);
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
TopoDS_Edge DrawGeomHatch::makeLine(Base::Vector3d s, Base::Vector3d e)
|
|
{
|
|
gp_Pnt start(s.x, s.y, 0.0);
|
|
gp_Pnt end(e.x, e.y, 0.0);
|
|
TopoDS_Vertex v1 = BRepBuilderAPI_MakeVertex(start);
|
|
TopoDS_Vertex v2 = BRepBuilderAPI_MakeVertex(end);
|
|
BRepBuilderAPI_MakeEdge makeEdge1(v1, v2);
|
|
return makeEdge1.Edge();
|
|
}
|
|
|
|
//! get all the untrimmed hatchlines for a face
|
|
//! these will be clipped to shape on the gui side
|
|
std::vector<LineSet> DrawGeomHatch::getFaceOverlay(int fdx)
|
|
{
|
|
// Base::Console().Message("TRACE - DGH::getFaceOverlay(%d)\n", fdx);
|
|
std::vector<LineSet> result;
|
|
DrawViewPart* source = getSourceView();
|
|
if (!source ||
|
|
!source->hasGeometry()) {
|
|
return result;
|
|
}
|
|
|
|
TopoDS_Face face = extractFace(source, fdx);
|
|
|
|
Bnd_Box bBox;
|
|
BRepBndLib::AddOptimal(face, bBox);
|
|
bBox.SetGap(0.0);
|
|
|
|
if (m_lineSets.empty()) {
|
|
makeLineSets();
|
|
}
|
|
|
|
for (auto& ls: m_lineSets) {
|
|
PATLineSpec hl = ls.getPATLineSpec();
|
|
std::vector<TopoDS_Edge> candidates = DrawGeomHatch::makeEdgeOverlay(hl, bBox, ScalePattern.getValue());
|
|
std::vector<TechDraw::BaseGeomPtr> resultGeoms;
|
|
for (auto& e: candidates) {
|
|
TechDraw::BaseGeomPtr base = BaseGeom::baseFactory(e);
|
|
if (!base) {
|
|
throw Base::ValueError("DGH::getFaceOverlay - baseFactory failed");
|
|
}
|
|
resultGeoms.push_back(base);
|
|
}
|
|
ls.setEdges(candidates);
|
|
ls.setGeoms(resultGeoms);
|
|
result.push_back(ls);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
/* static */
|
|
//! get TopoDS_Face(iface) from DVP
|
|
//! TODO: DVP can serve these up ready to use
|
|
TopoDS_Face DrawGeomHatch::extractFace(DrawViewPart* source, int iface )
|
|
{
|
|
std::vector<TopoDS_Wire> faceWires = source->getWireForFace(iface);
|
|
|
|
//build face(s) from geometry
|
|
gp_Pnt gOrg(0.0, 0.0, 0.0);
|
|
gp_Dir gDir(0.0, 0.0, 1.0);
|
|
gp_Pln plane(gOrg, gDir);
|
|
|
|
BRepBuilderAPI_MakeFace mkFace(plane, faceWires.front(), true);
|
|
std::vector<TopoDS_Wire>::iterator itWire = ++faceWires.begin(); //starting with second wire
|
|
for (; itWire != faceWires.end(); itWire++) {
|
|
mkFace.Add(*itWire);
|
|
}
|
|
if (!mkFace.IsDone()) {
|
|
return TopoDS_Face();
|
|
}
|
|
TopoDS_Face face = mkFace.Face();
|
|
|
|
TopoDS_Shape temp;
|
|
try {
|
|
// mirror about the Y axis
|
|
gp_Trsf mirrorTransform;
|
|
mirrorTransform.SetMirror( gp_Ax2(gp_Pnt(0.0, 0.0, 0.0), gp_Dir(0, 1, 0)) );
|
|
BRepBuilderAPI_Transform mkTrf(face, mirrorTransform);
|
|
temp = mkTrf.Shape();
|
|
}
|
|
catch (...) {
|
|
return TopoDS_Face();
|
|
}
|
|
return TopoDS::Face(temp);
|
|
}
|
|
|
|
//--------------------------------------------------------------------------------------------------
|
|
|
|
PyObject *DrawGeomHatch::getPyObject()
|
|
{
|
|
if (PythonObject.is(Py::_None())) {
|
|
PythonObject = Py::Object(new DrawGeomHatchPy(this), true);
|
|
}
|
|
return Py::new_reference_to(PythonObject);
|
|
}
|
|
|
|
std::string DrawGeomHatch::prefGeomHatchFile()
|
|
{
|
|
return Preferences::patFile();
|
|
}
|
|
|
|
std::string DrawGeomHatch::prefGeomHatchName()
|
|
{
|
|
Base::Reference<ParameterGrp> hGrp = App::GetApplication().GetUserParameter()
|
|
.GetGroup("BaseApp")->GetGroup("Preferences")->GetGroup("Mod/TechDraw/PAT");
|
|
std::string defaultNamePattern = "Diamond";
|
|
std::string result = hGrp->GetASCII("NamePattern", defaultNamePattern.c_str());
|
|
if (result.empty()) {
|
|
return defaultNamePattern;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
App::Color DrawGeomHatch::prefGeomHatchColor()
|
|
{
|
|
Base::Reference<ParameterGrp> hGrp = App::GetApplication().GetUserParameter()
|
|
.GetGroup("BaseApp")->GetGroup("Preferences")->GetGroup("Mod/TechDraw/Colors");
|
|
App::Color fcColor;
|
|
fcColor.setPackedValue(hGrp->GetUnsigned("GeomHatch", 0x00FF0000));
|
|
return fcColor;
|
|
}
|
|
|
|
|
|
|
|
// Python Drawing feature ---------------------------------------------------------
|
|
|
|
namespace App {
|
|
/// @cond DOXERR
|
|
PROPERTY_SOURCE_TEMPLATE(TechDraw::DrawGeomHatchPython, TechDraw::DrawGeomHatch)
|
|
template<> const char* TechDraw::DrawGeomHatchPython::getViewProviderName() const {
|
|
return "TechDrawGui::ViewProviderGeomHatch";
|
|
}
|
|
/// @endcond
|
|
|
|
// explicit template instantiation
|
|
template class TechDrawExport FeaturePythonT<TechDraw::DrawGeomHatch>;
|
|
}
|