108 lines
4.2 KiB
C++
108 lines
4.2 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
|
|
*
|
|
* This library is open source and may be redistributed and/or modified under
|
|
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
|
|
* (at your option) any later version. The full license is in LICENSE file
|
|
* included with this distribution, and on the openscenegraph.org website.
|
|
*
|
|
* 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
|
|
* OpenSceneGraph Public License for more details.
|
|
*/
|
|
|
|
#ifndef OSGGA_NODE_TRACKER_MANIPULATOR
|
|
#define OSGGA_NODE_TRACKER_MANIPULATOR 1
|
|
|
|
#include <osgGA/OrbitManipulator>
|
|
#include <osg/ObserverNodePath>
|
|
|
|
|
|
namespace osgGA {
|
|
|
|
|
|
class OSGGA_EXPORT NodeTrackerManipulator : public OrbitManipulator
|
|
{
|
|
typedef OrbitManipulator inherited;
|
|
|
|
public:
|
|
|
|
NodeTrackerManipulator( int flags = DEFAULT_SETTINGS );
|
|
|
|
NodeTrackerManipulator( const NodeTrackerManipulator& om,
|
|
const osg::CopyOp& copyOp = osg::CopyOp::SHALLOW_COPY );
|
|
|
|
META_Object( osgGA, NodeTrackerManipulator );
|
|
|
|
void setTrackNodePath(const osg::NodePath& nodePath);
|
|
void setTrackNodePath(const osg::ObserverNodePath& nodePath) { _trackNodePath = nodePath; }
|
|
osg::ObserverNodePath& getTrackNodePath() { return _trackNodePath; }
|
|
|
|
void setTrackNode(osg::Node* node);
|
|
osg::Node* getTrackNode() { osg::NodePath nodePath; return _trackNodePath.getNodePath(nodePath) && !nodePath.empty() ? nodePath.back() : 0; }
|
|
const osg::Node* getTrackNode() const { osg::NodePath nodePath; return _trackNodePath.getNodePath(nodePath) && !nodePath.empty() ? nodePath.back() : 0; }
|
|
|
|
enum TrackerMode
|
|
{
|
|
/** Track the center of the node's bounding sphere, but not rotations of the node.
|
|
* For databases which have a CoordinateSystemNode, the orientation is kept relative the coordinate frame if the center of the node.
|
|
*/
|
|
NODE_CENTER,
|
|
/** Track the center of the node's bounding sphere, and the azimuth rotation (about the z axis of the current coordinate frame).
|
|
* For databases which have a CoordinateSystemNode, the orientation is kept relative the coordinate frame if the center of the node.
|
|
*/
|
|
NODE_CENTER_AND_AZIM,
|
|
/** Tack the center of the node's bounding sphere, and the all rotations of the node.
|
|
*/
|
|
NODE_CENTER_AND_ROTATION
|
|
};
|
|
|
|
void setTrackerMode(TrackerMode mode);
|
|
TrackerMode getTrackerMode() const { return _trackerMode; }
|
|
|
|
|
|
enum RotationMode
|
|
{
|
|
/** Use a trackball style manipulation of the view direction w.r.t the tracked orientation.
|
|
*/
|
|
TRACKBALL,
|
|
/** Allow the elevation and azimuth angles to be adjust w.r.t the tracked orientation.
|
|
*/
|
|
ELEVATION_AZIM
|
|
};
|
|
|
|
void setRotationMode(RotationMode mode);
|
|
RotationMode getRotationMode() const;
|
|
|
|
|
|
virtual void setByMatrix(const osg::Matrixd& matrix);
|
|
virtual osg::Matrixd getMatrix() const;
|
|
virtual osg::Matrixd getInverseMatrix() const;
|
|
|
|
virtual void setNode(osg::Node*);
|
|
|
|
virtual void computeHomePosition();
|
|
|
|
protected:
|
|
|
|
virtual bool performMovementLeftMouseButton(const double eventTimeDelta, const double dx, const double dy);
|
|
virtual bool performMovementMiddleMouseButton(const double eventTimeDelta, const double dx, const double dy);
|
|
virtual bool performMovementRightMouseButton(const double eventTimeDelta, const double dx, const double dy);
|
|
|
|
void computeNodeWorldToLocal(osg::Matrixd& worldToLocal) const;
|
|
void computeNodeLocalToWorld(osg::Matrixd& localToWorld) const;
|
|
|
|
void computeNodeCenterAndRotation(osg::Vec3d& center, osg::Quat& rotation) const;
|
|
|
|
void computePosition(const osg::Vec3d& eye,const osg::Vec3d& lv,const osg::Vec3d& up);
|
|
|
|
|
|
osg::ObserverNodePath _trackNodePath;
|
|
TrackerMode _trackerMode;
|
|
|
|
};
|
|
|
|
}
|
|
|
|
#endif /* OSGGA_NODE_TRACKER_MANIPULATOR */
|