529 lines
23 KiB
C++
529 lines
23 KiB
C++
/***************************************************************************
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* Copyright (c) 2013 Luke Parry <l.parry@warwick.ac.uk> *
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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 <cstring>
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# include <cstdlib>
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# include <exception>
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# include <boost/regex.hpp>
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# include <QString>
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# include <QStringList>
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# include <QRegExp>
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#endif
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#include <App/Application.h>
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#include <Base/Console.h>
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#include <Base/Exception.h>
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#include <Base/Parameter.h>
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#include <Base/Quantity.h>
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#include <Base/UnitsApi.h>
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#include <Mod/Measure/App/Measurement.h>
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#include "DrawViewPart.h"
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#include "DrawViewDimension.h"
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#include "DrawUtil.h"
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#include <BRepBuilderAPI_MakeVertex.hxx>
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#include <BRepBuilderAPI_MakeEdge.hxx>
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#include <BRepExtrema_DistShapeShape.hxx>
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#include "DrawViewDimensionPy.h" // generated from DrawViewDimensionPy.xml
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using namespace TechDraw;
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//===========================================================================
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// DrawViewDimension
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//===========================================================================
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PROPERTY_SOURCE(TechDraw::DrawViewDimension, TechDraw::DrawView)
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const char* DrawViewDimension::TypeEnums[]= {"Distance",
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"DistanceX",
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"DistanceY",
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"DistanceZ",
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"Radius",
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"Diameter",
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"Angle",
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NULL};
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const char* DrawViewDimension::MeasureTypeEnums[]= {"True",
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"Projected",
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NULL};
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enum RefType{
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invalidRef,
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oneEdge,
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twoEdge,
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twoVertex
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};
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DrawViewDimension::DrawViewDimension(void)
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{
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Base::Reference<ParameterGrp> hGrp = App::GetApplication().GetUserParameter()
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.GetGroup("BaseApp")->GetGroup("Preferences")->GetGroup("Mod/TechDraw");
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std::string fontName = hGrp->GetASCII("LabelFont", "osifont");
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ADD_PROPERTY_TYPE(References2D,(0,0),"Dimension",(App::PropertyType)(App::Prop_None),"Projected Geometry References");
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ADD_PROPERTY_TYPE(References3D,(0,0),"Dimension",(App::PropertyType)(App::Prop_None),"3D Geometry References");
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ADD_PROPERTY_TYPE(Precision,(2) ,"Dimension",(App::PropertyType)(App::Prop_None),"Decimal positions to display");
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ADD_PROPERTY_TYPE(Font ,(fontName.c_str()),"Dimension",App::Prop_None, "The name of the font to use");
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ADD_PROPERTY_TYPE(Fontsize,(4) ,"Dimension",(App::PropertyType)(App::Prop_None),"Dimension text size in mm");
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ADD_PROPERTY_TYPE(CentreLines,(0) ,"Dimension",(App::PropertyType)(App::Prop_None),"Dimension Center Lines");
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ADD_PROPERTY_TYPE(ProjDirection ,(0.,0.,1.0), "Dimension",App::Prop_None,"Projection normal direction");
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ADD_PROPERTY_TYPE(FormatSpec,("%value%") ,"Dimension",(App::PropertyType)(App::Prop_None),"Dimension Format");
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Type.setEnums(TypeEnums); //dimension type: length, radius etc
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ADD_PROPERTY(Type,((long)0));
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MeasureType.setEnums(MeasureTypeEnums);
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ADD_PROPERTY(MeasureType, ((long)0)); //True or Projected measurement
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//hide the DrawView properties that don't apply to Dimensions
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ScaleType.setStatus(App::Property::ReadOnly,true);
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ScaleType.setStatus(App::Property::Hidden,true);
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Scale.setStatus(App::Property::ReadOnly,true);
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Scale.setStatus(App::Property::Hidden,true);
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Rotation.setStatus(App::Property::ReadOnly,true);
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Rotation.setStatus(App::Property::Hidden,true);
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Precision.setValue(Base::UnitsApi::getDecimals());
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measurement = new Measure::Measurement();
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}
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DrawViewDimension::~DrawViewDimension()
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{
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delete measurement;
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measurement = 0;
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}
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void DrawViewDimension::onChanged(const App::Property* prop)
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{
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if (!isRestoring()) {
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if (prop == &References2D ||
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prop == &Precision ||
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prop == &Font ||
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prop == &Fontsize ||
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prop == &CentreLines ||
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prop == &FormatSpec) {
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try {
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App::DocumentObjectExecReturn *ret = recompute();
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delete ret;
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}
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catch (...) {
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}
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}
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if (prop == &MeasureType) {
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if (MeasureType.isValue("True") && !measurement->has3DReferences()) {
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Base::Console().Warning("Dimension %s missing Reference to 3D model. Must be Projected.\n", getNameInDocument());
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MeasureType.setValue("Projected");
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}
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try {
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App::DocumentObjectExecReturn *ret = recompute();
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delete ret;
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}
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catch (...) {
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}
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}
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if (prop == &References3D) { //have to rebuild the Measurement object
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clear3DMeasurements();
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set3DMeasurement(References3D.getValues().at(0),References3D.getSubValues());
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}
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DrawView::onChanged(prop);
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}
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}
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void DrawViewDimension::onDocumentRestored()
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{
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if (has3DReferences()) {
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clear3DMeasurements();
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set3DMeasurement(References3D.getValues().at(0),References3D.getSubValues());
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}
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}
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short DrawViewDimension::mustExecute() const
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{
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bool result = 0;
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if (References2D.isTouched() ||
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Type.isTouched() ||
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MeasureType.isTouched()) {
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result = 1;
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} else {
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result = 0;
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}
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return result;
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}
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App::DocumentObjectExecReturn *DrawViewDimension::execute(void)
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{
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if (!has2DReferences()) { //too soon
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return App::DocumentObject::StdReturn;
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}
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//TODO: why not just use View's property directly?
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ProjDirection.setValue(getViewPart()->Direction.getValue());
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XAxisDirection.setValue(getViewPart()->XAxisDirection.getValue());
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//TODO: if MeasureType = Projected and the Projected shape changes, the Dimension may become invalid (see tilted Cube example)
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return App::DocumentObject::StdReturn;
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}
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std::string DrawViewDimension::getFormatedValue() const
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{
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QString str = QString::fromUtf8(FormatSpec.getStrValue().c_str());
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double val = std::abs(getDimValue());
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Base::Quantity qVal;
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qVal.setValue(val);
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if (Type.isValue("Angle")) {
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qVal.setUnit(Base::Unit::Angle);
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} else {
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qVal.setUnit(Base::Unit::Length);
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}
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QString userStr = qVal.getUserString();
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QStringList userSplit = userStr.split(QString::fromUtf8(" "),QString::SkipEmptyParts);
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QString displayText;
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if (!userSplit.isEmpty()) {
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double valNum = userSplit.front().toDouble();
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QString valText = QString::number(valNum, 'f', Precision.getValue());
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QString unitText = userSplit.back();
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displayText = valText + QString::fromUtf8(" ") + unitText;
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}
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QRegExp rx(QString::fromAscii("%(\\w+)%")); //any word bracketed by %
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QStringList list;
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int pos = 0;
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while ((pos = rx.indexIn(str, pos)) != -1) {
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list << rx.cap(0);
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pos += rx.matchedLength();
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}
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for(QStringList::const_iterator it = list.begin(); it != list.end(); ++it) {
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if(*it == QString::fromAscii("%value%")){
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str.replace(*it,displayText);
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} else { //insert additional placeholder replacement logic here
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str.replace(*it, QString::fromAscii(""));
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}
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}
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return str.toStdString();
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}
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double DrawViewDimension::getDimValue() const
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{
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double result = 0.0;
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if (!has2DReferences()) { //happens during Dimension creation
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Base::Console().Message("INFO - DVD::getDimValue - Dimension has no References\n");
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return result;
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}
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if (!getViewPart()->hasGeometry()) { //happens when loading saved document
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Base::Console().Message("INFO - DVD::getDimValue ViewPart has no Geometry yet\n");
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return result;
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}
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if (MeasureType.isValue("True")) {
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// True Values
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if (!measurement->has3DReferences()) {
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return result;
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}
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if(Type.isValue("Distance")) {
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result = measurement->delta().Length();
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} else if(Type.isValue("DistanceX")){
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Base::Vector3d delta = measurement->delta();
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result = delta.x;
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} else if(Type.isValue("DistanceY")){
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Base::Vector3d delta = measurement->delta();
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result = delta.y;
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} else if(Type.isValue("DistanceZ")){
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Base::Vector3d delta = measurement->delta();
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result = delta.z;
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} else if(Type.isValue("Radius")){
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result = measurement->radius();
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} else if(Type.isValue("Diameter")){
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result = measurement->radius() * 2.0;
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} else if(Type.isValue("Angle")){
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result = measurement->angle();
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} else {
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throw Base::Exception("getDimValue() - Unknown Dimension Type (1)");
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}
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} else {
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// Projected Values
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const std::vector<App::DocumentObject*> &objects = References2D.getValues();
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const std::vector<std::string> &subElements = References2D.getSubValues();
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if (Type.isValue("Distance") && getRefType() == oneEdge) {
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//TODO: Check for straight line Edge?
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int idx = DrawUtil::getIndexFromName(subElements[0]);
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TechDrawGeometry::BaseGeom* geom = getViewPart()->getProjEdgeByIndex(idx);
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TechDrawGeometry::Generic* gen = static_cast<TechDrawGeometry::Generic*>(geom);
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Base::Vector2D start = gen->points[0];
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Base::Vector2D end = gen->points[1];
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Base::Vector2D line = end - start;
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result = line.Length() / getViewPart()->Scale.getValue();
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} else if (Type.isValue("Distance") && getRefType() == twoEdge) {
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//only works for straight line edges
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int idx0 = DrawUtil::getIndexFromName(subElements[0]);
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int idx1 = DrawUtil::getIndexFromName(subElements[1]);
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TechDrawGeometry::BaseGeom* geom0 = getViewPart()->getProjEdgeByIndex(idx0);
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TechDrawGeometry::BaseGeom* geom1 = getViewPart()->getProjEdgeByIndex(idx1);
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TechDrawGeometry::Generic* gen0 = static_cast<TechDrawGeometry::Generic*>(geom0);
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TechDrawGeometry::Generic* gen1 = static_cast<TechDrawGeometry::Generic*>(geom1);
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Base::Vector2D s0 = gen0->points[0];
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Base::Vector2D e0 = gen0->points[1];
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Base::Vector2D s1 = gen1->points[0];
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Base::Vector2D e1 = gen1->points[1];
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result = dist2Segs(s0,e0,s1,e1) / getViewPart()->Scale.getValue();
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} else if (Type.isValue("Distance") && getRefType() == twoVertex) {
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int idx0 = DrawUtil::getIndexFromName(subElements[0]);
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int idx1 = DrawUtil::getIndexFromName(subElements[1]);
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TechDrawGeometry::Vertex* v0 = getViewPart()->getProjVertexByIndex(idx0);
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TechDrawGeometry::Vertex* v1 = getViewPart()->getProjVertexByIndex(idx1);
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Base::Vector2D start = v0->pnt;
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Base::Vector2D end = v1->pnt;
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Base::Vector2D line = end - start;
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result = line.Length() / getViewPart()->Scale.getValue();
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} else if (Type.isValue("DistanceX") && getRefType() == oneEdge) {
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int idx = DrawUtil::getIndexFromName(subElements[0]);
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TechDrawGeometry::BaseGeom* geom = getViewPart()->getProjEdgeByIndex(idx);
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TechDrawGeometry::Generic* gen = static_cast<TechDrawGeometry::Generic*>(geom);
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Base::Vector2D start = gen->points[0];
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Base::Vector2D end = gen->points[1];
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Base::Vector2D line = end - start;
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return fabs(line.fX) / getViewPart()->Scale.getValue();
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} else if (Type.isValue("DistanceY") && getRefType() == oneEdge) {
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int idx = DrawUtil::getIndexFromName(subElements[0]);
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TechDrawGeometry::BaseGeom* geom = getViewPart()->getProjEdgeByIndex(idx);
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TechDrawGeometry::Generic* gen = static_cast<TechDrawGeometry::Generic*>(geom);
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Base::Vector2D start = gen->points[0];
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Base::Vector2D end = gen->points[1];
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Base::Vector2D line = end - start;
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result = fabs(line.fY) / getViewPart()->Scale.getValue();
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} else if (Type.isValue("DistanceX") && getRefType() == twoVertex) {
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int idx0 = DrawUtil::getIndexFromName(subElements[0]);
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int idx1 = DrawUtil::getIndexFromName(subElements[1]);
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TechDrawGeometry::Vertex* v0 = getViewPart()->getProjVertexByIndex(idx0);
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TechDrawGeometry::Vertex* v1 = getViewPart()->getProjVertexByIndex(idx1);
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Base::Vector2D start = v0->pnt;
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Base::Vector2D end = v1->pnt;
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Base::Vector2D line = end - start;
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result = fabs(line.fX) / getViewPart()->Scale.getValue();
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} else if (Type.isValue("DistanceY") && getRefType() == twoVertex) {
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int idx0 = DrawUtil::getIndexFromName(subElements[0]);
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int idx1 = DrawUtil::getIndexFromName(subElements[1]);
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TechDrawGeometry::Vertex* v0 = getViewPart()->getProjVertexByIndex(idx0);
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TechDrawGeometry::Vertex* v1 = getViewPart()->getProjVertexByIndex(idx1);
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Base::Vector2D start = v0->pnt;
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Base::Vector2D end = v1->pnt;
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Base::Vector2D line = end - start;
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result = fabs(line.fY) / getViewPart()->Scale.getValue();
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} else if(Type.isValue("Radius")){
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//only 1 reference for a Radius
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int idx = DrawUtil::getIndexFromName(subElements[0]);
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TechDrawGeometry::BaseGeom* base = getViewPart()->getProjEdgeByIndex(idx);
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TechDrawGeometry::Circle* circle = static_cast<TechDrawGeometry::Circle*> (base);
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result = circle->radius / getViewPart()->Scale.getValue(); //Projected BaseGeom is scaled for drawing
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} else if(Type.isValue("Diameter")){
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//only 1 reference for a Diameter
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int idx = DrawUtil::getIndexFromName(subElements[0]);
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TechDrawGeometry::BaseGeom* base = getViewPart()->getProjEdgeByIndex(idx);
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TechDrawGeometry::Circle* circle = static_cast<TechDrawGeometry::Circle*> (base);
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result = (circle->radius * 2.0) / getViewPart()->Scale.getValue(); //Projected BaseGeom is scaled for drawing
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} else if(Type.isValue("Angle")){
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// Must project lines to 2D so cannot use measurement framework this time
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//Relcalculate the measurement based on references stored.
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//WF: why not use projected geom in GeomObject and Vector2D.GetAngle? intersection pt & direction issues?
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//TODO: do we need to distinguish inner vs outer angle? -wf
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// if(subElements.size() != 2) {
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// throw Base::Exception("FVD - Two references required for angle measurement");
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// }
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if (getRefType() != twoEdge) {
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throw Base::Exception("FVD - Two edge references required for angle measurement");
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}
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int idx0 = DrawUtil::getIndexFromName(subElements[0]);
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int idx1 = DrawUtil::getIndexFromName(subElements[1]);
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TechDraw::DrawViewPart *viewPart = dynamic_cast<TechDraw::DrawViewPart *>(objects[0]);
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TechDrawGeometry::BaseGeom* edge0 = viewPart->getProjEdgeByIndex(idx0);
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TechDrawGeometry::BaseGeom* edge1 = viewPart->getProjEdgeByIndex(idx1);
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// Only can find angles with straight line edges
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if(edge0->geomType == TechDrawGeometry::GENERIC &&
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edge1->geomType == TechDrawGeometry::GENERIC) {
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TechDrawGeometry::Generic *gen1 = static_cast<TechDrawGeometry::Generic *>(edge0);
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TechDrawGeometry::Generic *gen2 = static_cast<TechDrawGeometry::Generic *>(edge1);
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Base::Vector3d p1S(gen1->points.at(0).fX, gen1->points.at(0).fY, 0.);
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Base::Vector3d p1E(gen1->points.at(1).fX, gen1->points.at(1).fY, 0.);
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Base::Vector3d p2S(gen2->points.at(0).fX, gen2->points.at(0).fY, 0.);
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Base::Vector3d p2E(gen2->points.at(1).fX, gen2->points.at(1).fY, 0.);
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Base::Vector3d dir1 = p1E - p1S;
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Base::Vector3d dir2 = p2E - p2S;
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// Line Intersetion (taken from ViewProviderSketch.cpp)
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double det = dir1.x*dir2.y - dir1.y*dir2.x;
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if ((det > 0 ? det : -det) < 1e-10)
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throw Base::Exception("Invalid selection - Det = 0");
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double c1 = dir1.y*gen1->points.at(0).fX - dir1.x*gen1->points.at(0).fY;
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double c2 = dir2.y*gen2->points.at(1).fX - dir2.x*gen2->points.at(1).fY;
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double x = (dir1.x*c2 - dir2.x*c1)/det;
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double y = (dir1.y*c2 - dir2.y*c1)/det;
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// Intersection point
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Base::Vector3d p0 = Base::Vector3d(x,y,0);
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Base::Vector3d lPos((double) X.getValue(), (double) Y.getValue(), 0.);
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//Base::Vector3d delta = lPos - p0;
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// Create vectors point towards intersection always
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Base::Vector3d a = -p0, b = -p0;
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a += ((p1S - p0).Length() < FLT_EPSILON) ? p1E : p1S;
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b += ((p2S - p0).Length() < FLT_EPSILON) ? p2E : p2S;
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double angle2 = atan2( a.x*b.y - a.y*b.x, a.x*b.x + a.y*b.y );
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result = angle2 * 180. / M_PI;
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} else {
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throw Base::Exception("getDimValue() - Unknown Dimension Type (2)");
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}
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} //endif Angle
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} //endif Projected
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return result;
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}
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DrawViewPart* DrawViewDimension::getViewPart() const
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{
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//TODO: range_check here if no References. valid situation during Dimension creation. what happens if return NULL??
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//need checks everywhere?
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return dynamic_cast<TechDraw::DrawViewPart * >(References2D.getValues().at(0));
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}
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int DrawViewDimension::getRefType() const
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{
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int refType = invalidRef;
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const std::vector<std::string> &subElements = References2D.getSubValues();
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if ((subElements.size() == 1) &&
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(DrawUtil::getGeomTypeFromName(subElements[0]) == "Edge")) {
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refType = oneEdge;
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} else if (subElements.size() == 2) {
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|
if ((DrawUtil::getGeomTypeFromName(subElements[0]) == "Edge") &&
|
|
(DrawUtil::getGeomTypeFromName(subElements[1]) == "Edge")) {
|
|
refType = twoEdge;
|
|
} else if ((DrawUtil::getGeomTypeFromName(subElements[0]) == "Vertex") &&
|
|
(DrawUtil::getGeomTypeFromName(subElements[1]) == "Vertex")) {
|
|
refType = twoVertex;
|
|
}
|
|
//} else add different types here - Vertex-Edge, Vertex-Face, ...
|
|
}
|
|
return refType;
|
|
}
|
|
|
|
//!add 1 3D measurement Reference
|
|
void DrawViewDimension::set3DMeasurement(DocumentObject* const &obj, const std::vector<std::string>& subElements)
|
|
{
|
|
std::vector<std::string>::const_iterator itSub = subElements.begin();
|
|
for (; itSub != subElements.end(); itSub++) {
|
|
//int rc =
|
|
static_cast<void> (measurement->addReference3D(obj,(*itSub).c_str()));
|
|
}
|
|
}
|
|
|
|
//delete all previous measurements
|
|
void DrawViewDimension::clear3DMeasurements()
|
|
{
|
|
measurement->clear();
|
|
}
|
|
|
|
void DrawViewDimension::dumpRefs2D(char* text) const
|
|
{
|
|
Base::Console().Message("DUMP - %s\n",text);
|
|
const std::vector<App::DocumentObject*> &objects = References2D.getValues();
|
|
const std::vector<std::string> &subElements = References2D.getSubValues();
|
|
std::vector<App::DocumentObject*>::const_iterator objIt = objects.begin();
|
|
std::vector<std::string>::const_iterator subIt = subElements.begin();
|
|
int i = 0;
|
|
for( ;objIt != objects.end();objIt++,subIt++,i++) {
|
|
Base::Console().Message("DUMP - ref: %d object: %s subElement: %s\n",i,(*objIt)->getNameInDocument(),(*subIt).c_str());
|
|
}
|
|
}
|
|
|
|
double DrawViewDimension::dist2Segs(Base::Vector2D s1,
|
|
Base::Vector2D e1,
|
|
Base::Vector2D s2,
|
|
Base::Vector2D e2) const
|
|
{
|
|
gp_Pnt start(s1.fX,s1.fY,0.0);
|
|
gp_Pnt end(e1.fX,e1.fY,0.0);
|
|
TopoDS_Vertex v1 = BRepBuilderAPI_MakeVertex(start);
|
|
TopoDS_Vertex v2 = BRepBuilderAPI_MakeVertex(end);
|
|
BRepBuilderAPI_MakeEdge makeEdge1(v1,v2);
|
|
TopoDS_Edge edge1 = makeEdge1.Edge();
|
|
|
|
start = gp_Pnt(s2.fX,s2.fY,0.0);
|
|
end = gp_Pnt(e2.fX,e2.fY,0.0);
|
|
v1 = BRepBuilderAPI_MakeVertex(start);
|
|
v2 = BRepBuilderAPI_MakeVertex(end);
|
|
BRepBuilderAPI_MakeEdge makeEdge2(v1,v2);
|
|
TopoDS_Edge edge2 = makeEdge2.Edge();
|
|
|
|
BRepExtrema_DistShapeShape extss(edge1, edge2);
|
|
if (!extss.IsDone()) {
|
|
throw Base::Exception("FVD - BRepExtrema_DistShapeShape failed");
|
|
}
|
|
int count = extss.NbSolution();
|
|
double minDist = 0.0;
|
|
if (count != 0) {
|
|
minDist = extss.Value();
|
|
} //TODO: else { explode }
|
|
|
|
return minDist;
|
|
}
|
|
|
|
bool DrawViewDimension::has2DReferences(void) const
|
|
{
|
|
return (References2D.getSize() > 0);
|
|
}
|
|
|
|
bool DrawViewDimension::has3DReferences(void) const
|
|
{
|
|
return (References3D.getSize() > 0);
|
|
}
|
|
|
|
PyObject *DrawViewDimension::getPyObject(void)
|
|
{
|
|
if (PythonObject.is(Py::_None())) {
|
|
// ref counter is set to 1
|
|
PythonObject = Py::Object(new DrawViewDimensionPy(this),true);
|
|
}
|
|
return Py::new_reference_to(PythonObject);
|
|
}
|