/
FemConstraintBearing.cpp
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FemConstraintBearing.cpp
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/***************************************************************************
* Copyright (c) 2013 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 <gp_Pnt.hxx>
#include <gp_Pln.hxx>
#include <gp_Lin.hxx>
#include <TopoDS.hxx>
#include <BRepAdaptor_Surface.hxx>
#include <BRepAdaptor_Curve.hxx>
#include <Precision.hxx>
#endif
#include "FemConstraintBearing.h"
#include <Mod/Part/App/PartFeature.h>
#include <Base/Console.h>
using namespace Fem;
PROPERTY_SOURCE(Fem::ConstraintBearing, Fem::Constraint)
ConstraintBearing::ConstraintBearing()
{
ADD_PROPERTY_TYPE(Location,(0),"ConstraintBearing",(App::PropertyType)(App::Prop_None),
"Element giving axial location of constraint");
ADD_PROPERTY(Dist,(0.0));
ADD_PROPERTY(AxialFree,(0));
ADD_PROPERTY(Radius,(0.0));
ADD_PROPERTY(Height,(0.0));
ADD_PROPERTY_TYPE(BasePoint,(Base::Vector3d(0,0,0)),"ConstraintBearing",App::PropertyType(App::Prop_ReadOnly|App::Prop_Output),
"Base point of cylindrical bearing seat");
ADD_PROPERTY_TYPE(Axis,(Base::Vector3d(0,1,0)),"ConstraintBearing",App::PropertyType(App::Prop_ReadOnly|App::Prop_Output),
"Axis of bearing seat");
}
App::DocumentObjectExecReturn *ConstraintBearing::execute(void)
{
return Constraint::execute();
}
void ConstraintBearing::onChanged(const App::Property* prop)
{
//Base::Console().Error("ConstraintBearing: onChanged %s\n", prop->getName());
// Note: If we call this at the end, then the symbol ist not oriented correctly initially
// because the NormalDirection has not been calculated yet
Constraint::onChanged(prop);
if (prop == &References) {
// Find data of cylinder
double radius, height;
Base::Vector3d base, axis;
if (!getCylinder(radius, height, base, axis))
return;
Radius.setValue(radius);
Axis.setValue(axis);
Height.setValue(height);
// Update base point
base = base + axis * height/2;
if (Location.getValue() != NULL) {
base = getBasePoint(base, axis, Location, Dist.getValue());
}
BasePoint.setValue(base);
BasePoint.touch(); // This triggers ViewProvider::updateData()
} else if ((prop == &Location) || (prop == &Dist)) {
App::DocumentObject* obj = Location.getValue();
std::vector<std::string> names = Location.getSubValues();
if (names.size() == 0) {
return;
}
std::string subName = names.front();
Part::Feature* feat = static_cast<Part::Feature*>(obj);
TopoDS_Shape sh = feat->Shape.getShape().getSubShape(subName.c_str());
if (sh.ShapeType() == TopAbs_FACE) {
BRepAdaptor_Surface surface(TopoDS::Face(sh));
if (surface.GetType() != GeomAbs_Plane) {
return; // "Location must be a planar face or linear edge"
}
} else if (sh.ShapeType() == TopAbs_EDGE) {
BRepAdaptor_Curve line(TopoDS::Edge(sh));
if (line.GetType() != GeomAbs_Line) {
return; // "Location must be a planar face or linear edge"
}
}
double radius, height;
Base::Vector3d base, axis;
if (!getCylinder(radius, height, base, axis))
return;
base = getBasePoint(base + axis * height/2, axis, Location, Dist.getValue());
BasePoint.setValue(base);
BasePoint.touch();
}
}