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