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Constraint.h
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Constraint.h
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/***************************************************************************
* Copyright (c) Jürgen Riegel (juergen.riegel@web.de) 2008 *
* *
* 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 *
* *
***************************************************************************/
#ifndef SKETCHER_CONSTRAINT_H
#define SKETCHER_CONSTRAINT_H
#include <Base/Persistence.h>
#include <Base/Quantity.h>
#include <boost/uuid/uuid.hpp>
#include <boost/uuid/uuid_generators.hpp>
namespace Sketcher
{
/*!
Important note: New constraint types must be always added at the end but before 'NumConstraintTypes'.
This is mandatory in order to keep the handling of constraint types upward compatible which means that
this program version ignores later introduced constraint types when reading them from a project file.
*/
enum ConstraintType {
None = 0,
Coincident = 1,
Horizontal = 2,
Vertical = 3,
Parallel = 4,
Tangent = 5,
Distance = 6,
DistanceX = 7,
DistanceY = 8,
Angle = 9,
Perpendicular = 10,
Radius = 11,
Equal = 12,
PointOnObject = 13,
Symmetric = 14,
InternalAlignment = 15,
SnellsLaw = 16,
NumConstraintTypes // must be the last item!
};
enum InternalAlignmentType {
Undef = 0,
EllipseMajorDiameter = 1,
EllipseMinorDiameter = 2,
EllipseFocus1 = 3,
EllipseFocus2 = 4,
HyperbolaMajor = 5,
HyperbolaMinor = 6,
HyperbolaFocus = 7,
ParabolaFocus = 8,
BSplineControlPoint = 9 // in this constraint "Third" is used to indicate the index of the control point (0-poles), it is not a GeoId
};
/// define if you want to use the end or start point
enum PointPos { none, start, end, mid };
class SketcherExport Constraint : public Base::Persistence
{
TYPESYSTEM_HEADER();
public:
Constraint();
Constraint(const Constraint&);
virtual ~Constraint();
virtual Constraint *clone(void) const; // does copy the tag, it will be treated as a rename by the expression engine.
virtual Constraint *copy(void) const; // does not copy the tag, but generates a new one
static const int GeoUndef;
// from base class
virtual unsigned int getMemSize(void) const;
virtual void Save(Base::Writer &/*writer*/) const;
virtual void Restore(Base::XMLReader &/*reader*/);
virtual PyObject *getPyObject(void);
void setValue(double newValue);
Base::Quantity getPresentationValue() const;
double getValue() const;
friend class Sketch;
friend class PropertyConstraintList;
private:
double Value;
public:
ConstraintType Type;
InternalAlignmentType AlignmentType;
std::string Name;
int First;
PointPos FirstPos;
int Second;
PointPos SecondPos;
int Third;
PointPos ThirdPos;
float LabelDistance;
float LabelPosition;
bool isDriving;
int InternalAlignmentIndex; // Note: for InternalAlignment Type this index indexes equal internal geometry elements (e.g. index of pole in a bspline). It is not a GeoId!!
protected:
boost::uuids::uuid tag;
};
} //namespace Sketcher
#endif // SKETCHER_CONSTRAINT_H