19db0c1674
Vivek's email to osg-submissions: "I'm happy to release the osgdragger nodekit to the OSG community. I implemented the nodekit for my company, Fugro-Jason Inc., and they have kindly agreed to open source it. The nodekit contains a few draggers but it should be easy to build new draggers on top of it. The design of the nodekit is based on a SIGGRAPH 2002 course - "Design and Implementation of Direct Manipulation in 3D". You can find the course notes at http://www.pauliface.com/Sigg02/index.html. Reading pages 20 - 29 of the course notes should give you a fair understanding of how the nodekit works. The source code also contains an example of how to use the draggers."
69 lines
2.4 KiB
C++
69 lines
2.4 KiB
C++
/* -*-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_SELECTION
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#define OSGMANIPULATOR_SELECTION 1
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#include <osgManipulator/Export>
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#include <osg/MatrixTransform>
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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 Rotate3DCommand;
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/** Computes the nodepath from the given node all the way upto the root. */
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extern OSGMANIPULATOR_EXPORT void computeNodePathToRoot(osg::Node& node, osg::NodePath& np);
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/**
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* Selection listens to motion commands generated by draggers.
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*/
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class OSGMANIPULATOR_EXPORT Selection : public osg::MatrixTransform
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{
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public:
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Selection();
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/**
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* Receive motion commands and set the MatrixTransform accordingly to
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* transform selections. Returns true on success.
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*/
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virtual bool receive(const MotionCommand&);
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virtual bool receive(const TranslateInLineCommand& command) { return receive((MotionCommand&)command); }
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virtual bool receive(const TranslateInPlaneCommand& command) { return receive((MotionCommand&)command); }
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virtual bool receive(const Scale1DCommand& command) { return receive((MotionCommand&)command); }
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virtual bool receive(const Scale2DCommand& command) { return receive((MotionCommand&)command); }
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virtual bool receive(const ScaleUniformCommand& command) { return receive((MotionCommand&)command); }
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virtual bool receive(const Rotate3DCommand& command) { return receive((MotionCommand&)command); }
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protected:
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virtual ~Selection();
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osg::Matrix _startMotionMatrix;
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osg::Matrix _localToWorld;
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osg::Matrix _worldToLocal;
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};
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}
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#endif
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