111 lines
5.0 KiB
C++
111 lines
5.0 KiB
C++
/***************************************************************************
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* Copyright (c) 2013 Jan Rheinländer *
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* <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 <gp_Pnt.hxx>
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#include <gp_Pln.hxx>
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#include <gp_Lin.hxx>
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#include <TopoDS.hxx>
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#include <BRepAdaptor_Surface.hxx>
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#include <BRepAdaptor_Curve.hxx>
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#include <Precision.hxx>
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#endif
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#include "FemConstraintForce.h"
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#include <Mod/Part/App/PartFeature.h>
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#include <Base/Console.h>
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using namespace Fem;
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PROPERTY_SOURCE(Fem::ConstraintForce, Fem::Constraint)
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ConstraintForce::ConstraintForce()
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{
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ADD_PROPERTY(Force,(0.0));
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ADD_PROPERTY_TYPE(Direction,(0),"ConstraintForce",(App::PropertyType)(App::Prop_None),
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"Element giving direction of constraint");
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ADD_PROPERTY(Reversed,(0));
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ADD_PROPERTY_TYPE(Points,(Base::Vector3d()),"ConstraintForce",App::PropertyType(App::Prop_ReadOnly|App::Prop_Output),
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"Points where arrows are drawn");
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ADD_PROPERTY_TYPE(DirectionVector,(Base::Vector3d(0,0,1)),"ConstraintForce",App::PropertyType(App::Prop_ReadOnly|App::Prop_Output),
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"Direction of arrows");
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naturalDirectionVector = Base::Vector3d(0,0,0); // by default use the null vector to indicate an invalid value
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Points.setValues(std::vector<Base::Vector3d>());
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}
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App::DocumentObjectExecReturn *ConstraintForce::execute(void)
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{
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return Constraint::execute();
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}
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void ConstraintForce::onChanged(const App::Property* prop)
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{
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// Note: If we call this at the end, then the arrows are not oriented correctly initially
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// because the NormalDirection has not been calculated yet
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Constraint::onChanged(prop);
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if (prop == &References) {
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std::vector<Base::Vector3d> points;
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std::vector<Base::Vector3d> normals;
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int scale = 1; //OvG: Enforce use of scale
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if (getPoints(points, normals, &scale)) {
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Points.setValues(points); // We don't use the normals because all arrows should have the same direction
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Scale.setValue(scale); //OvG Scale
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Points.touch();
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}
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} else if (prop == &Direction) {
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Base::Vector3d direction = getDirection(Direction);
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if (direction.Length() < Precision::Confusion())
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return;
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naturalDirectionVector = direction;
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if (Reversed.getValue())
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direction = -direction;
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DirectionVector.setValue(direction);
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} else if (prop == &Reversed) {
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// if the direction is invalid try to compute it again
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if (naturalDirectionVector.Length() < Precision::Confusion()) {
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naturalDirectionVector = getDirection(Direction);
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}
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if (naturalDirectionVector.Length() >= Precision::Confusion()) {
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if (Reversed.getValue() && (DirectionVector.getValue() == naturalDirectionVector)) {
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DirectionVector.setValue(-naturalDirectionVector);
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} else if (!Reversed.getValue() && (DirectionVector.getValue() != naturalDirectionVector)) {
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DirectionVector.setValue(naturalDirectionVector);
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}
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}
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} else if (prop == &NormalDirection) {
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// Set a default direction if no direction reference has been given
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if (Direction.getValue() == NULL) {
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Base::Vector3d direction = NormalDirection.getValue();
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if (Reversed.getValue())
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direction = -direction;
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DirectionVector.setValue(direction);
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naturalDirectionVector = direction;
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}
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}
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}
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