271 lines
11 KiB
C++
271 lines
11 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 <BRepAdaptor_Curve.hxx>
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# include <BRepAdaptor_Surface.hxx>
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# include <gp_Dir.hxx>
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# include <gp_Pln.hxx>
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# include <Precision.hxx>
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# include <TopoDS.hxx>
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# include <TopoDS_Face.hxx>
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#endif
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#include <App/Datums.h>
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#include <Base/Axis.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 "FeatureLinearPattern.h"
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#include "DatumLine.h"
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#include "DatumPlane.h"
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using namespace PartDesign;
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namespace PartDesign {
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PROPERTY_SOURCE(PartDesign::LinearPattern, PartDesign::Transformed)
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const App::PropertyIntegerConstraint::Constraints LinearPattern::intOccurrences = {
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1, std::numeric_limits<int>::max(), 1 };
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const char* LinearPattern::ModeEnums[] = { "length", "offset", nullptr };
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LinearPattern::LinearPattern()
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{
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auto initialMode = LinearPatternMode::length;
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ADD_PROPERTY_TYPE(Direction,(nullptr),"LinearPattern",(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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ADD_PROPERTY(Length,(100.0));
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ADD_PROPERTY(Offset,(10.0));
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ADD_PROPERTY(Occurrences,(3));
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Occurrences.setConstraints(&intOccurrences);
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Mode.setEnums(ModeEnums);
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setReadWriteStatusForMode(initialMode);
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}
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short LinearPattern::mustExecute() const
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{
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if (Direction.isTouched() ||
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Reversed.isTouched() ||
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Mode.isTouched() ||
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// Length and Offset are mutually exclusive, only one could be updated at once
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Length.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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void LinearPattern::setReadWriteStatusForMode(LinearPatternMode mode)
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{
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Length.setReadOnly(mode != LinearPatternMode::length);
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Offset.setReadOnly(mode != LinearPatternMode::offset);
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}
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const std::list<gp_Trsf> LinearPattern::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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double distance = Length.getValue();
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if (distance < Precision::Confusion())
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throw Base::ValueError("Pattern length too small");
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bool reversed = Reversed.getValue();
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App::DocumentObject* refObject = Direction.getValue();
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if (!refObject)
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throw Base::ValueError("No direction reference specified");
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std::vector<std::string> subStrings = Direction.getSubValues();
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if (subStrings.empty())
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throw Base::ValueError("No direction reference specified");
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gp_Dir dir;
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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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axis *= refSketch->Placement.getValue();
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}
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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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axis *= refSketch->Placement.getValue();
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}
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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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axis *= refSketch->Placement.getValue();
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}
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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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axis *= refSketch->Placement.getValue();
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}
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}
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else if (subStrings[0].compare(0, 4, "Edge") == 0) {
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Part::TopoShape refShape = refSketch->Shape.getShape();
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TopoDS_Shape ref = refShape.getSubShape(subStrings[0].c_str());
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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 direction edge");
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BRepAdaptor_Curve adapt(refEdge);
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if (adapt.GetType() != GeomAbs_Line)
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throw Base::TypeError("Direction edge must be a straight line");
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gp_Pnt p = adapt.Line().Location();
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gp_Dir d = adapt.Line().Direction();
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// the axis is not given in local coordinates and mustn't be multiplied with the
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// placement
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axis.setBase(Base::Vector3d(p.X(), p.Y(), p.Z()));
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axis.setDirection(Base::Vector3d(d.X(), d.Y(), d.Z()));
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}
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dir = gp_Dir(axis.getDirection().x, axis.getDirection().y, axis.getDirection().z);
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} else if (refObject->isDerivedFrom<PartDesign::Plane>()) {
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PartDesign::Plane* plane = static_cast<PartDesign::Plane*>(refObject);
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Base::Vector3d d = plane->getNormal();
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dir = gp_Dir(d.x, d.y, d.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 d = line->getDirection();
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dir = gp_Dir(d.x, d.y, d.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 d = line->getDirection();
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dir = 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 direction 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_FACE) {
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TopoDS_Face refFace = TopoDS::Face(ref);
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if (refFace.IsNull())
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throw Base::ValueError("Failed to extract direction plane");
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BRepAdaptor_Surface adapt(refFace);
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if (adapt.GetType() != GeomAbs_Plane)
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throw Base::TypeError("Direction face must be planar");
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dir = adapt.Plane().Axis().Direction();
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} else 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 direction edge");
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BRepAdaptor_Curve adapt(refEdge);
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if (adapt.GetType() != GeomAbs_Line)
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throw Base::ValueError("Direction edge must be a straight line");
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dir = adapt.Line().Direction();
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} else {
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throw Base::ValueError("Direction reference must be edge or face");
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}
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} else {
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throw Base::ValueError("Direction reference must be edge/face of a feature or a datum line/plane");
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}
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TopLoc_Location invObjLoc = this->getLocation().Inverted();
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dir.Transform(invObjLoc.Transformation());
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gp_Vec offset(dir.X(), dir.Y(), dir.Z());
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switch (static_cast<LinearPatternMode>(Mode.getValue())) {
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case LinearPatternMode::length:
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offset *= distance / (occurrences - 1);
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break;
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case LinearPatternMode::offset:
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offset *= 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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if (reversed)
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offset.Reverse();
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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.SetTranslation(offset * i);
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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 LinearPattern::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 LinearPattern::onChanged(const App::Property* prop)
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{
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auto mode = static_cast<LinearPatternMode>(Mode.getValue());
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if (prop == &Mode) {
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setReadWriteStatusForMode(mode);
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}
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// Keep Length in sync with Offset, catch Occurrences changes
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if (mode == LinearPatternMode::offset && (prop == &Offset || prop == &Occurrences)
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&& !Length.testStatus(App::Property::Status::Immutable)) {
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Length.setValue(Offset.getValue() * (Occurrences.getValue() - 1));
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}
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if (mode == LinearPatternMode::length && (prop == &Length || prop == &Occurrences)
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&& !Offset.testStatus(App::Property::Status::Immutable)) {
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Offset.setValue(Length.getValue() / (Occurrences.getValue() - 1));
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}
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Transformed::onChanged(prop);
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}
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}
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