247 lines
9.7 KiB
C++
247 lines
9.7 KiB
C++
/******************************************************************************
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* Copyright (c) 2012 Jan Rheinländer <jrheinlaender@users.sourceforge.net> *
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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 <limits>
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# include <TopoDS.hxx>
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# include <TopoDS_Face.hxx>
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# include <gp_Lin.hxx>
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# include <gp_Circ.hxx>
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# include <gp_Ax2.hxx>
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# include <BRepAdaptor_Curve.hxx>
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#endif
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#include "DatumLine.h"
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#include <Base/Axis.h>
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#include <Base/Exception.h>
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#include <Base/Tools.h>
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#include <Mod/Part/App/TopoShape.h>
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#include <Mod/Part/App/Part2DObject.h>
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#include <App/Datums.h>
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#include "FeaturePolarPattern.h"
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using namespace PartDesign;
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namespace PartDesign {
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PROPERTY_SOURCE(PartDesign::PolarPattern, PartDesign::Transformed)
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const App::PropertyIntegerConstraint::Constraints PolarPattern::intOccurrences = {
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1, std::numeric_limits<int>::max(), 1 };
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const App::PropertyAngle::Constraints PolarPattern::floatAngle = { Base::toDegrees<double>(Precision::Angular()), 360.0, 1.0 };
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const char* PolarPattern::ModeEnums[] = {"angle", "offset", nullptr};
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PolarPattern::PolarPattern()
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{
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auto initialMode = PolarPatternMode::angle;
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ADD_PROPERTY_TYPE(Axis, (nullptr), "PolarPattern", (App::PropertyType)(App::Prop_None), "Direction");
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ADD_PROPERTY(Reversed, (0));
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ADD_PROPERTY(Mode, (long(initialMode)));
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Mode.setEnums(PolarPattern::ModeEnums);
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ADD_PROPERTY(Angle, (360.0));
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ADD_PROPERTY(Offset, (120.0));
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Angle.setConstraints(&floatAngle);
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Offset.setConstraints(&floatAngle);
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ADD_PROPERTY(Occurrences, (3));
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Occurrences.setConstraints(&intOccurrences);
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setReadWriteStatusForMode(initialMode);
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}
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short PolarPattern::mustExecute() const
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{
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if (Axis.isTouched() ||
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Reversed.isTouched() ||
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Mode.isTouched() ||
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// Angle and Offset are mutually exclusive, only one could be updated at once
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Angle.isTouched() ||
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Offset.isTouched() ||
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Occurrences.isTouched())
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return 1;
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return Transformed::mustExecute();
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}
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const std::list<gp_Trsf> PolarPattern::getTransformations(const std::vector<App::DocumentObject*>)
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{
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int occurrences = Occurrences.getValue();
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if (occurrences < 1)
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throw Base::ValueError("At least one occurrence required");
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if (occurrences == 1)
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return {gp_Trsf()};
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bool reversed = Reversed.getValue();
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App::DocumentObject* refObject = Axis.getValue();
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if (!refObject)
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throw Base::ValueError("No axis reference specified");
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std::vector<std::string> subStrings = Axis.getSubValues();
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if (subStrings.empty())
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throw Base::ValueError("No axis reference specified");
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gp_Pnt axbase;
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gp_Dir axdir;
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if (refObject->isDerivedFrom<Part::Part2DObject>()) {
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Part::Part2DObject* refSketch = static_cast<Part::Part2DObject*>(refObject);
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Base::Axis axis;
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if (subStrings[0] == "H_Axis")
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axis = refSketch->getAxis(Part::Part2DObject::H_Axis);
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else if (subStrings[0] == "V_Axis")
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axis = refSketch->getAxis(Part::Part2DObject::V_Axis);
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else if (subStrings[0] == "N_Axis")
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axis = refSketch->getAxis(Part::Part2DObject::N_Axis);
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else if (subStrings[0].compare(0, 4, "Axis") == 0) {
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int AxId = std::atoi(subStrings[0].substr(4,4000).c_str());
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if (AxId >= 0 && AxId < refSketch->getAxisCount())
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axis = refSketch->getAxis(AxId);
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}
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axis *= refSketch->Placement.getValue();
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axbase = gp_Pnt(axis.getBase().x, axis.getBase().y, axis.getBase().z);
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axdir = gp_Dir(axis.getDirection().x, axis.getDirection().y, axis.getDirection().z);
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} else if (refObject->isDerivedFrom<PartDesign::Line>()) {
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PartDesign::Line* line = static_cast<PartDesign::Line*>(refObject);
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Base::Vector3d base = line->getBasePoint();
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axbase = gp_Pnt(base.x, base.y, base.z);
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Base::Vector3d dir = line->getDirection();
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axdir = gp_Dir(dir.x, dir.y, dir.z);
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} else if (refObject->isDerivedFrom<App::Line>()) {
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App::Line* line = static_cast<App::Line*>(refObject);
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Base::Vector3d base = line->getBasePoint();
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axbase = gp_Pnt(base.x, base.y, base.z);
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Base::Vector3d d = line->getDirection();
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axdir = gp_Dir(d.x, d.y, d.z);
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} else if (refObject->isDerivedFrom<Part::Feature>()) {
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if (subStrings[0].empty())
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throw Base::ValueError("No axis reference specified");
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Part::Feature* refFeature = static_cast<Part::Feature*>(refObject);
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Part::TopoShape refShape = refFeature->Shape.getShape();
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TopoDS_Shape ref = refShape.getSubShape(subStrings[0].c_str());
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if (ref.ShapeType() == TopAbs_EDGE) {
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TopoDS_Edge refEdge = TopoDS::Edge(ref);
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if (refEdge.IsNull())
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throw Base::ValueError("Failed to extract axis edge");
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BRepAdaptor_Curve adapt(refEdge);
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if (adapt.GetType() == GeomAbs_Line) {
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axbase = adapt.Line().Location();
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axdir = adapt.Line().Direction();
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} else if (adapt.GetType() == GeomAbs_Circle) {
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axbase = adapt.Circle().Location();
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axdir = adapt.Circle().Axis().Direction();
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} else {
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throw Base::TypeError("Rotation edge must be a straight line, circle or arc of circle");
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}
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} else {
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throw Base::TypeError("Axis reference must be an edge");
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}
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} else {
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throw Base::TypeError("Axis reference must be edge of a feature or datum line");
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}
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TopLoc_Location invObjLoc = this->getLocation().Inverted();
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axbase.Transform(invObjLoc.Transformation());
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axdir.Transform(invObjLoc.Transformation());
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gp_Ax2 axis(axbase, axdir);
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if (reversed)
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axis.SetDirection(axis.Direction().Reversed());
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double angle;
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switch (static_cast<PolarPatternMode>(Mode.getValue())) {
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case PolarPatternMode::angle:
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angle = Angle.getValue();
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if (std::fabs(angle - 360.0) < Precision::Confusion())
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angle /= occurrences; // Because e.g. two occurrences in 360 degrees need to be 180 degrees apart
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else
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angle /= occurrences - 1;
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break;
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case PolarPatternMode::offset:
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angle = Offset.getValue();
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break;
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default:
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throw Base::ValueError("Invalid mode");
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}
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double offset = Base::toRadians<double>(angle);
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if (offset < Precision::Angular())
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throw Base::ValueError("Pattern angle too small");
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std::list<gp_Trsf> transformations;
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gp_Trsf trans;
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transformations.push_back(trans);
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// Note: The original feature is already included in the list of transformations!
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// Therefore we start with occurrence number 1
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for (int i = 1; i < occurrences; i++) {
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trans.SetRotation(axis.Axis(), i * offset);
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transformations.push_back(trans);
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}
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return transformations;
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}
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void PolarPattern::handleChangedPropertyType(Base::XMLReader& reader, const char* TypeName, App::Property* prop)
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// transforms properties that had been changed
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{
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// property Occurrences had the App::PropertyInteger and was changed to App::PropertyIntegerConstraint
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if (prop == &Occurrences && strcmp(TypeName, "App::PropertyInteger") == 0) {
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App::PropertyInteger OccurrencesProperty;
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// restore the PropertyInteger to be able to set its value
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OccurrencesProperty.Restore(reader);
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Occurrences.setValue(OccurrencesProperty.getValue());
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}
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else {
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Transformed::handleChangedPropertyType(reader, TypeName, prop);
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}
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}
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void PolarPattern::onChanged(const App::Property* prop)
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{
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if (prop == &Mode) {
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auto mode = static_cast<PolarPatternMode>(Mode.getValue());
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setReadWriteStatusForMode(mode);
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}
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Transformed::onChanged(prop);
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}
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void PolarPattern::setReadWriteStatusForMode(PolarPatternMode mode)
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{
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Offset.setReadOnly(mode != PolarPatternMode::offset);
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Angle.setReadOnly(mode != PolarPatternMode::angle);
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}
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}
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