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105 lines
3.9 KiB
105 lines
3.9 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 OSG_CAMERAVIEW |
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#define OSG_CAMERAVIEW 1 |
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#include <osg/Group> |
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#include <osg/Transform> |
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#include <osg/AnimationPath> |
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#include <osg/Vec3d> |
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#include <osg/Quat> |
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namespace osg { |
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/** CameraView - is a Transform that is used to specify camera views from within the scene graph. |
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* The application must attach a camera to a CameraView via the NodePath from the top of the scene graph |
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* to the CameraView node itself, and accumulate the view matrix from this NodePath. |
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*/ |
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class OSG_EXPORT CameraView : public Transform |
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{ |
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public : |
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CameraView(); |
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CameraView(const CameraView& pat,const CopyOp& copyop=CopyOp::SHALLOW_COPY): |
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Transform(pat,copyop), |
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_position(pat._position), |
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_attitude(pat._attitude), |
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_fieldOfView(pat._fieldOfView), |
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_fieldOfViewMode(pat._fieldOfViewMode), |
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_focalLength(pat._focalLength) {} |
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META_Node(osg, CameraView); |
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/** Set the position of the camera view.*/ |
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inline void setPosition(const Vec3d& pos) { _position = pos; dirtyBound(); } |
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/** Get the position of the camera view.*/ |
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inline const Vec3d& getPosition() const { return _position; } |
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/** Set the attitude of the camera view.*/ |
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inline void setAttitude(const Quat& quat) { _attitude = quat; dirtyBound(); } |
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/** Get the attitude of the camera view.*/ |
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inline const Quat& getAttitude() const { return _attitude; } |
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/** Set the field of view. |
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* The camera's field of view can be constrained to either the horizontal or vertical axis of the camera, or unconstrained |
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* in which case the camera/application are left to choose an appropriate field of view. |
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* The default value if 60 degrees. */ |
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inline void setFieldOfView(double fieldOfView) { _fieldOfView = fieldOfView; } |
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/** Get the field of view.*/ |
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inline double getFieldOfView() const { return _fieldOfView; } |
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enum FieldOfViewMode |
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{ |
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UNCONSTRAINED, |
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HORIZONTAL, |
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VERTICAL |
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}; |
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/** Set the field of view mode - controlling how the field of view of the camera is constrained by the CameraView settings.*/ |
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inline void setFieldOfViewMode(FieldOfViewMode mode) { _fieldOfViewMode = mode; } |
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/** Get the field of view mode.*/ |
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inline FieldOfViewMode getFieldOfViewMode() const { return _fieldOfViewMode; } |
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/** Set the focal length of the camera. |
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* A focal length of 0.0 indicates that the camera/application should determine the focal length. |
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* The default value is 0.0. */ |
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inline void setFocalLength(double focalLength) { _focalLength = focalLength; } |
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/** Get the focal length of the camera.*/ |
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inline double getFocalLength() const { return _focalLength; } |
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virtual bool computeLocalToWorldMatrix(Matrix& matrix,NodeVisitor* nv) const; |
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virtual bool computeWorldToLocalMatrix(Matrix& matrix,NodeVisitor* nv) const; |
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protected : |
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virtual ~CameraView() {} |
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Vec3d _position; |
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Quat _attitude; |
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double _fieldOfView; |
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FieldOfViewMode _fieldOfViewMode; |
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double _focalLength; |
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}; |
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} |
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#endif
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