1 /* -*-c++-*-
2  *
3  * Copyright (C) 2006-2007 Mathias Froehlich
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU General Public License as
7  * published by the Free Software Foundation; either version 2 of the
8  * License, or (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful, but
11  * WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  * General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
18  * MA 02110-1301, USA.
19  *
20  */
21 
22 #ifndef SG_ROTATE_TRANSFORM_HXX
23 #define SG_ROTATE_TRANSFORM_HXX
24 
25 #include <osg/Transform>
26 #include <simgear/math/SGMath.hxx>
27 
28 class SGRotateTransform : public osg::Transform {
29 public:
30   SGRotateTransform();
31   SGRotateTransform(const SGRotateTransform&,
32                     const osg::CopyOp& copyop = osg::CopyOp::SHALLOW_COPY);
33 
34   META_Node(simgear, SGRotateTransform);
35 
setCenter(const SGVec3f & center)36   void setCenter(const SGVec3f& center)
37   { setCenter(toVec3d(center)); }
setCenter(const SGVec3d & center)38   void setCenter(const SGVec3d& center)
39   { _center = center; dirtyBound(); }
getCenter() const40   const SGVec3d& getCenter() const
41   { return _center; }
42 
setAxis(const SGVec3f & axis)43   void setAxis(const SGVec3f& axis)
44   { setAxis(toVec3d(axis)); }
setAxis(const SGVec3d & axis)45   void setAxis(const SGVec3d& axis)
46   { _axis = axis; dirtyBound(); }
getAxis() const47   const SGVec3d& getAxis() const
48   { return _axis; }
49 
setAngleRad(double angle)50   void setAngleRad(double angle)
51   { _angleRad = angle; }
getAngleRad() const52   double getAngleRad() const
53   { return _angleRad; }
54 
setAngleDeg(double angle)55   void setAngleDeg(double angle)
56   { _angleRad = SGMiscd::deg2rad(angle); }
getAngleDeg() const57   double getAngleDeg() const
58   { return SGMiscd::rad2deg(_angleRad); }
59 
60   virtual bool computeLocalToWorldMatrix(osg::Matrix& matrix,
61                                          osg::NodeVisitor* nv) const;
62   virtual bool computeWorldToLocalMatrix(osg::Matrix& matrix,
63                                          osg::NodeVisitor* nv) const;
64 
65   virtual osg::BoundingSphere computeBound() const;
66 
67   // Useful for other classes too.
68   static void set_rotation (osg::Matrix &matrix, double position_rad,
69                             const SGVec3d &center, const SGVec3d &axis);
70 private:
71   SGVec3d _center;
72   SGVec3d _axis;
73   double _angleRad;
74 };
75 
76 #endif
77