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99 lines
3.4 KiB
99 lines
3.4 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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//osgManipulator - Copyright (C) 2007 Fugro-Jason B.V. |
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#ifndef OSGMANIPULATOR_CONSTRAINT |
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#define OSGMANIPULATOR_CONSTRAINT 1 |
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#include <osgManipulator/Export> |
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#include <osg/observer_ptr> |
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#include <osg/Node> |
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#include <osg/Matrix> |
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namespace osgManipulator { |
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class MotionCommand; |
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class TranslateInLineCommand; |
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class TranslateInPlaneCommand; |
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class Scale1DCommand; |
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class Scale2DCommand; |
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class ScaleUniformCommand; |
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class OSGMANIPULATOR_EXPORT Constraint : public osg::Referenced |
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{ |
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public: |
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virtual bool constrain(MotionCommand&) const { return false; } |
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virtual bool constrain(TranslateInLineCommand& command) const { return constrain((MotionCommand&)command); } |
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virtual bool constrain(TranslateInPlaneCommand& command) const { return constrain((MotionCommand&)command); } |
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virtual bool constrain(Scale1DCommand& command) const { return constrain((MotionCommand&)command); } |
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virtual bool constrain(Scale2DCommand& command) const { return constrain((MotionCommand&)command); } |
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virtual bool constrain(ScaleUniformCommand& command) const { return constrain((MotionCommand&)command); } |
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protected: |
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Constraint(osg::Node& refNode) : _refNode(&refNode) {} |
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virtual ~Constraint() {} |
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osg::Node& getReferenceNode() { return *_refNode; } |
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const osg::Node& getReferenceNode() const { return *_refNode; } |
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const osg::Matrix& getLocalToWorld() const { return _localToWorld; } |
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const osg::Matrix& getWorldToLocal() const { return _worldToLocal; } |
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void computeLocalToWorldAndWorldToLocal() const; |
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private: |
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osg::observer_ptr<osg::Node> _refNode; |
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mutable osg::Matrix _localToWorld; |
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mutable osg::Matrix _worldToLocal; |
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}; |
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/** |
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* Constraint to snap motion commands to a sugar cube grid. |
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*/ |
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class OSGMANIPULATOR_EXPORT GridConstraint : public Constraint |
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{ |
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public: |
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GridConstraint(osg::Node& refNode, const osg::Vec3d& origin, const osg::Vec3d& spacing); |
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void setOrigin(const osg::Vec3d& origin) { _origin = origin; } |
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const osg::Vec3d& getOrigin() const { return _origin; } |
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void setSpacing(const osg::Vec3d& spacing) { _spacing = spacing; } |
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const osg::Vec3d& getSpacing() const { return _spacing; } |
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virtual bool constrain(TranslateInLineCommand& command) const; |
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virtual bool constrain(TranslateInPlaneCommand& command) const; |
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virtual bool constrain(Scale1DCommand& command) const; |
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virtual bool constrain(Scale2DCommand& command) const; |
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virtual bool constrain(ScaleUniformCommand& command) const; |
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protected: |
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virtual ~GridConstraint() {} |
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private: |
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osg::Vec3d _origin; |
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osg::Vec3d _spacing; |
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mutable osg::Matrix _startMatrix; |
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mutable osg::Matrix _matrix; |
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}; |
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} |
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#endif
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