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create/src/Mod/PartDesign/App/FeatureLinearPattern.cpp
Ulices fa0702956c PartDesign: Update Length/Offset when Occurrences changes (#12069) 
* Add 'HACK:'/`NOTE:` tags to get special highlightning

* [PD] Bugfix: Update Length/Offset when Occurrences changes

Fix #12068
2024-01-21 18:52:34 -06:00

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/******************************************************************************
* Copyright (c) 2012 Jan Rheinländer <jrheinlaender@users.sourceforge.net> *
* *
* This file is part of the FreeCAD CAx development system. *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
* This library is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this library; see the file COPYING.LIB. If not, *
* write to the Free Software Foundation, Inc., 59 Temple Place, *
* Suite 330, Boston, MA 02111-1307, USA *
* *
******************************************************************************/
#include "PreCompiled.h"
#ifndef _PreComp_
# include <BRepAdaptor_Curve.hxx>
# include <BRepAdaptor_Surface.hxx>
# include <gp_Dir.hxx>
# include <gp_Pln.hxx>
# include <Precision.hxx>
# include <TopoDS.hxx>
# include <TopoDS_Face.hxx>
#endif
#include <App/OriginFeature.h>
#include <Base/Axis.h>
#include <Mod/Part/App/TopoShape.h>
#include <Mod/Part/App/Part2DObject.h>
#include "FeatureLinearPattern.h"
#include "DatumLine.h"
#include "DatumPlane.h"
using namespace PartDesign;
namespace PartDesign {
PROPERTY_SOURCE(PartDesign::LinearPattern, PartDesign::Transformed)
const App::PropertyIntegerConstraint::Constraints LinearPattern::intOccurrences = { 1, INT_MAX, 1 };
const char* LinearPattern::ModeEnums[] = { "length", "offset", nullptr };
LinearPattern::LinearPattern()
{
auto initialMode = LinearPatternMode::length;
ADD_PROPERTY_TYPE(Direction,(nullptr),"LinearPattern",(App::PropertyType)(App::Prop_None),"Direction");
ADD_PROPERTY(Reversed,(0));
ADD_PROPERTY(Mode, (long(initialMode)));
ADD_PROPERTY(Length,(100.0));
ADD_PROPERTY(Offset,(10.0));
ADD_PROPERTY(Occurrences,(3));
Occurrences.setConstraints(&intOccurrences);
Mode.setEnums(ModeEnums);
setReadWriteStatusForMode(initialMode);
}
short LinearPattern::mustExecute() const
{
if (Direction.isTouched() ||
Reversed.isTouched() ||
Mode.isTouched() ||
// Length and Offset are mutually exclusive, only one could be updated at once
Length.isTouched() ||
Offset.isTouched() ||
Occurrences.isTouched())
return 1;
return Transformed::mustExecute();
}
void LinearPattern::setReadWriteStatusForMode(LinearPatternMode mode)
{
Length.setReadOnly(mode != LinearPatternMode::length);
Offset.setReadOnly(mode != LinearPatternMode::offset);
}
const std::list<gp_Trsf> LinearPattern::getTransformations(const std::vector<App::DocumentObject*>)
{
int occurrences = Occurrences.getValue();
if (occurrences < 1)
throw Base::ValueError("At least one occurrence required");
if (occurrences == 1)
return {gp_Trsf()};
double distance = Length.getValue();
if (distance < Precision::Confusion())
throw Base::ValueError("Pattern length too small");
bool reversed = Reversed.getValue();
App::DocumentObject* refObject = Direction.getValue();
if (!refObject)
throw Base::ValueError("No direction reference specified");
std::vector<std::string> subStrings = Direction.getSubValues();
if (subStrings.empty())
throw Base::ValueError("No direction reference specified");
gp_Dir dir;
if (refObject->isDerivedFrom<Part::Part2DObject>()) {
Part::Part2DObject* refSketch = static_cast<Part::Part2DObject*>(refObject);
Base::Axis axis;
if (subStrings[0] == "H_Axis") {
axis = refSketch->getAxis(Part::Part2DObject::H_Axis);
axis *= refSketch->Placement.getValue();
}
else if (subStrings[0] == "V_Axis") {
axis = refSketch->getAxis(Part::Part2DObject::V_Axis);
axis *= refSketch->Placement.getValue();
}
else if (subStrings[0] == "N_Axis") {
axis = refSketch->getAxis(Part::Part2DObject::N_Axis);
axis *= refSketch->Placement.getValue();
}
else if (subStrings[0].compare(0, 4, "Axis") == 0) {
int AxId = std::atoi(subStrings[0].substr(4,4000).c_str());
if (AxId >= 0 && AxId < refSketch->getAxisCount()) {
axis = refSketch->getAxis(AxId);
axis *= refSketch->Placement.getValue();
}
}
else if (subStrings[0].compare(0, 4, "Edge") == 0) {
Part::TopoShape refShape = refSketch->Shape.getShape();
TopoDS_Shape ref = refShape.getSubShape(subStrings[0].c_str());
TopoDS_Edge refEdge = TopoDS::Edge(ref);
if (refEdge.IsNull())
throw Base::ValueError("Failed to extract direction edge");
BRepAdaptor_Curve adapt(refEdge);
if (adapt.GetType() != GeomAbs_Line)
throw Base::TypeError("Direction edge must be a straight line");
gp_Pnt p = adapt.Line().Location();
gp_Dir d = adapt.Line().Direction();
// the axis is not given in local coordinates and mustn't be multiplied with the
// placement
axis.setBase(Base::Vector3d(p.X(), p.Y(), p.Z()));
axis.setDirection(Base::Vector3d(d.X(), d.Y(), d.Z()));
}
dir = gp_Dir(axis.getDirection().x, axis.getDirection().y, axis.getDirection().z);
} else if (refObject->isDerivedFrom<PartDesign::Plane>()) {
PartDesign::Plane* plane = static_cast<PartDesign::Plane*>(refObject);
Base::Vector3d d = plane->getNormal();
dir = gp_Dir(d.x, d.y, d.z);
} else if (refObject->isDerivedFrom<PartDesign::Line>()) {
PartDesign::Line* line = static_cast<PartDesign::Line*>(refObject);
Base::Vector3d d = line->getDirection();
dir = gp_Dir(d.x, d.y, d.z);
} else if (refObject->isDerivedFrom<App::Line>()) {
App::Line* line = static_cast<App::Line*>(refObject);
Base::Rotation rot = line->Placement.getValue().getRotation();
Base::Vector3d d(1,0,0);
rot.multVec(d, d);
dir = gp_Dir(d.x, d.y, d.z);
} else if (refObject->isDerivedFrom<Part::Feature>()) {
if (subStrings[0].empty())
throw Base::ValueError("No direction reference specified");
Part::Feature* refFeature = static_cast<Part::Feature*>(refObject);
Part::TopoShape refShape = refFeature->Shape.getShape();
TopoDS_Shape ref = refShape.getSubShape(subStrings[0].c_str());
if (ref.ShapeType() == TopAbs_FACE) {
TopoDS_Face refFace = TopoDS::Face(ref);
if (refFace.IsNull())
throw Base::ValueError("Failed to extract direction plane");
BRepAdaptor_Surface adapt(refFace);
if (adapt.GetType() != GeomAbs_Plane)
throw Base::TypeError("Direction face must be planar");
dir = adapt.Plane().Axis().Direction();
} else if (ref.ShapeType() == TopAbs_EDGE) {
TopoDS_Edge refEdge = TopoDS::Edge(ref);
if (refEdge.IsNull())
throw Base::ValueError("Failed to extract direction edge");
BRepAdaptor_Curve adapt(refEdge);
if (adapt.GetType() != GeomAbs_Line)
throw Base::ValueError("Direction edge must be a straight line");
dir = adapt.Line().Direction();
} else {
throw Base::ValueError("Direction reference must be edge or face");
}
} else {
throw Base::ValueError("Direction reference must be edge/face of a feature or a datum line/plane");
}
TopLoc_Location invObjLoc = this->getLocation().Inverted();
dir.Transform(invObjLoc.Transformation());
gp_Vec offset(dir.X(), dir.Y(), dir.Z());
switch (static_cast<LinearPatternMode>(Mode.getValue())) {
case LinearPatternMode::length:
offset *= distance / (occurrences - 1);
break;
case LinearPatternMode::offset:
offset *= Offset.getValue();
break;
default:
throw Base::ValueError("Invalid mode");
}
if (reversed)
offset.Reverse();
std::list<gp_Trsf> transformations;
gp_Trsf trans;
transformations.push_back(trans);
// NOTE: The original feature is already included in the list of transformations!
// Therefore we start with occurrence number 1
for (int i = 1; i < occurrences; i++) {
trans.SetTranslation(offset * i);
transformations.push_back(trans);
}
return transformations;
}
void LinearPattern::handleChangedPropertyType(Base::XMLReader& reader, const char* TypeName, App::Property* prop)
// transforms properties that had been changed
{
// property Occurrences had the App::PropertyInteger and was changed to App::PropertyIntegerConstraint
if (prop == &Occurrences && strcmp(TypeName, "App::PropertyInteger") == 0) {
App::PropertyInteger OccurrencesProperty;
// restore the PropertyInteger to be able to set its value
OccurrencesProperty.Restore(reader);
Occurrences.setValue(OccurrencesProperty.getValue());
}
else {
Transformed::handleChangedPropertyType(reader, TypeName, prop);
}
}
void LinearPattern::onChanged(const App::Property* prop)
{
auto mode = static_cast<LinearPatternMode>(Mode.getValue());
if (prop == &Mode) {
setReadWriteStatusForMode(mode);
}
// Keep Length in sync with Offset, catch Occurrences changes
if (mode == LinearPatternMode::offset && (prop == &Offset || prop == &Occurrences)
&& !Length.testStatus(App::Property::Status::Immutable)) {
Length.setValue(Offset.getValue() * (Occurrences.getValue() - 1));
}
if (mode == LinearPatternMode::length && (prop == &Length || prop == &Occurrences)
&& !Offset.testStatus(App::Property::Status::Immutable)) {
Offset.setValue(Length.getValue() / (Occurrences.getValue() - 1));
}
Transformed::onChanged(prop);
}
}
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