dd996a3289
forcing users to use osgDB::readRef*File() methods. The later is preferable as it closes a potential threading bug when using paging databases in conjunction
with the osgDB::Registry Object Cache. This threading bug occurs when one thread gets an object from the Cache via an osgDB::read*File() call where only
a pointer to the object is passed back, so taking a reference to the object is delayed till it gets reassigned to a ref_ptr<>, but at the same time another
thread calls a flush of the Object Cache deleting this object as it's referenceCount is now zero. Using osgDB::readREf*File() makes sure the a ref_ptr<> is
passed back and the referenceCount never goes to zero.
To ensure the OSG builds when OSG_PROVIDE_READFILE is to OFF the many cases of osgDB::read*File() usage had to be replaced with a ref_ptr<> osgDB::readRef*File()
usage. The avoid this change causing lots of other client code to be rewritten to handle the use of ref_ptr<> in place of C pointer I introduced a serious of
templte methods in various class to adapt ref_ptr<> to the underly C pointer to be passed to old OSG API's, example of this is found in include/osg/Group:
bool addChild(Node* child); // old method which can only be used with a Node*
tempalte<class T> bool addChild(const osg::ref_ptr<T>& child) { return addChild(child.get()); } // adapter template method
These changes together cover 149 modified files, so it's a large submission. This extent of changes are warrent to make use of the Object Cache
and multi-threaded loaded more robust.
git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@15164 16af8721-9629-0410-8352-f15c8da7e697
498 lines
19 KiB
C++
498 lines
19 KiB
C++
/* OpenSceneGraph example, osgmanipulator.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <osgDB/ReadFile>
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#include <osgUtil/Optimizer>
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#include <osgViewer/Viewer>
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#include <osgViewer/ViewerEventHandlers>
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#include <osg/CoordinateSystemNode>
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#include <osgText/Text>
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#include <osgManipulator/TabBoxDragger>
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#include <osgManipulator/TabBoxTrackballDragger>
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#include <osgManipulator/TabPlaneDragger>
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#include <osgManipulator/TabPlaneTrackballDragger>
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#include <osgManipulator/Scale1DDragger>
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#include <osgManipulator/Scale2DDragger>
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#include <osgManipulator/TrackballDragger>
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#include <osgManipulator/Translate1DDragger>
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#include <osgManipulator/Translate2DDragger>
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#include <osgManipulator/TranslateAxisDragger>
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#include <osgManipulator/TranslatePlaneDragger>
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#include <osgManipulator/RotateCylinderDragger>
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#include <osgManipulator/AntiSquish>
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#include <osg/ShapeDrawable>
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#include <osg/MatrixTransform>
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#include <osg/Geometry>
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#include <osg/Material>
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#include <osg/io_utils>
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#include <iostream>
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class PlaneConstraint : public osgManipulator::Constraint
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{
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public:
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PlaneConstraint() {}
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virtual bool constrain(osgManipulator::TranslateInLineCommand& command) const
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{
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OSG_NOTICE<<"PlaneConstraint TranslateInLineCommand "<<command.getTranslation()<<std::endl;
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return true;
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}
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virtual bool constrain(osgManipulator::TranslateInPlaneCommand& command) const
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{
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//command.setTranslation(osg::Vec3(0.0f,0.0f,0.0f));
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OSG_NOTICE<<"PlaneConstraint TranslateInPlaneCommand "<<command.getTranslation()<<std::endl;
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return true;
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}
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virtual bool constrain(osgManipulator::Scale1DCommand& command) const
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{
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//command.setScale(1.0f);
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OSG_NOTICE<<"PlaneConstraint Scale1DCommand"<<command.getScale()<<std::endl;
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return true;
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}
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virtual bool constrain(osgManipulator::Scale2DCommand& command) const
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{
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//command.setScale(osg::Vec2d(1.0,1.0));
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OSG_NOTICE<<"PlaneConstraint Scale2DCommand "<<command.getScale()<<std::endl;
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return true;
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}
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virtual bool constrain(osgManipulator::ScaleUniformCommand& command) const
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{
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OSG_NOTICE<<"PlaneConstraint ScaleUniformCommand"<<command.getScale()<<std::endl;
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return true;
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}
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};
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osgManipulator::Dragger* createDragger(const std::string& name)
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{
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osgManipulator::Dragger* dragger = 0;
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if ("TabPlaneDragger" == name)
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{
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osgManipulator::TabPlaneDragger* d = new osgManipulator::TabPlaneDragger();
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d->setupDefaultGeometry();
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d->addConstraint(new PlaneConstraint());
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dragger = d;
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}
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else if ("TabPlaneTrackballDragger" == name)
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{
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osgManipulator::TabPlaneTrackballDragger* d = new osgManipulator::TabPlaneTrackballDragger();
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d->setupDefaultGeometry();
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dragger = d;
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}
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else if ("TabBoxTrackballDragger" == name)
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{
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osgManipulator::TabBoxTrackballDragger* d = new osgManipulator::TabBoxTrackballDragger();
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d->setupDefaultGeometry();
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dragger = d;
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}
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else if ("TrackballDragger" == name)
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{
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osgManipulator::TrackballDragger* d = new osgManipulator::TrackballDragger();
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d->setupDefaultGeometry();
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//d->setAxisLineWidth(5.0f);
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//d->setPickCylinderHeight(0.1f);
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dragger = d;
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}
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else if ("Translate1DDragger" == name)
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{
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osgManipulator::Translate1DDragger* d = new osgManipulator::Translate1DDragger();
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d->setupDefaultGeometry();
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dragger = d;
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}
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else if ("Translate2DDragger" == name)
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{
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osgManipulator::Translate2DDragger* d = new osgManipulator::Translate2DDragger();
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d->setupDefaultGeometry();
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dragger = d;
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}
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else if ("TranslateAxisDragger" == name)
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{
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osgManipulator::TranslateAxisDragger* d = new osgManipulator::TranslateAxisDragger();
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d->setupDefaultGeometry();
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d->setAxisLineWidth(5.0f);
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d->setPickCylinderRadius(0.05f);
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d->setConeHeight(0.2f);
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dragger = d;
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}
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else if ("TranslatePlaneDragger" == name)
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{
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osgManipulator::TranslatePlaneDragger* d = new osgManipulator::TranslatePlaneDragger();
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d->setupDefaultGeometry();
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dragger = d;
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}
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else if ("Scale1DDragger" == name)
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{
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osgManipulator::Scale1DDragger* d = new osgManipulator::Scale1DDragger();
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d->setupDefaultGeometry();
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dragger = d;
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}
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else if ("Scale2DDragger" == name)
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{
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osgManipulator::Scale2DDragger* d = new osgManipulator::Scale2DDragger();
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d->setupDefaultGeometry();
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dragger = d;
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}
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else if ("RotateCylinderDragger" == name)
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{
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osgManipulator::RotateCylinderDragger* d = new osgManipulator::RotateCylinderDragger();
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d->setupDefaultGeometry();
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dragger = d;
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}
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else if ("RotateSphereDragger" == name)
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{
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osgManipulator::RotateSphereDragger* d = new osgManipulator::RotateSphereDragger();
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d->setupDefaultGeometry();
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dragger = d;
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}
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else
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{
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osgManipulator::TabBoxDragger* d = new osgManipulator::TabBoxDragger();
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d->setupDefaultGeometry();
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dragger = d;
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}
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return dragger;
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}
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// The DraggerContainer node is used to fix the dragger's size on the screen
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class DraggerContainer : public osg::Group
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{
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public:
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DraggerContainer() : _draggerSize(240.0f), _active(true) {}
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DraggerContainer( const DraggerContainer& copy, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY )
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: osg::Group(copy, copyop),
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_dragger(copy._dragger), _draggerSize(copy._draggerSize), _active(copy._active)
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{}
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META_Node( osgManipulator, DraggerContainer );
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void setDragger( osgManipulator::Dragger* dragger )
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{
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_dragger = dragger;
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if ( !containsNode(dragger) ) addChild( dragger );
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}
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osgManipulator::Dragger* getDragger() { return _dragger.get(); }
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const osgManipulator::Dragger* getDragger() const { return _dragger.get(); }
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void setDraggerSize( float size ) { _draggerSize = size; }
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float getDraggerSize() const { return _draggerSize; }
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void setActive( bool b ) { _active = b; }
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bool getActive() const { return _active; }
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void traverse( osg::NodeVisitor& nv )
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{
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if ( _dragger.valid() )
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{
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if ( _active && nv.getVisitorType()==osg::NodeVisitor::CULL_VISITOR )
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{
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osgUtil::CullVisitor* cv = static_cast<osgUtil::CullVisitor*>(&nv);
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float pixelSize = cv->pixelSize(_dragger->getBound().center(), 0.48f);
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if ( pixelSize!=_draggerSize )
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{
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float pixelScale = pixelSize>0.0f ? _draggerSize/pixelSize : 1.0f;
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osg::Vec3d scaleFactor(pixelScale, pixelScale, pixelScale);
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osg::Vec3 trans = _dragger->getMatrix().getTrans();
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_dragger->setMatrix( osg::Matrix::scale(scaleFactor) * osg::Matrix::translate(trans) );
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}
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}
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}
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osg::Group::traverse(nv);
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}
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protected:
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osg::ref_ptr<osgManipulator::Dragger> _dragger;
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float _draggerSize;
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bool _active;
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};
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osg::Node* addDraggerToScene(osg::Node* scene, const std::string& name, bool fixedSizeInScreen)
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{
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scene->getOrCreateStateSet()->setMode(GL_NORMALIZE, osg::StateAttribute::ON);
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osg::MatrixTransform* transform = new osg::MatrixTransform;
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transform->addChild(scene);
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osgManipulator::Dragger* dragger = createDragger(name);
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osg::Group* root = new osg::Group;
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root->addChild(transform);
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if ( fixedSizeInScreen )
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{
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DraggerContainer* draggerContainer = new DraggerContainer;
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draggerContainer->setDragger( dragger );
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root->addChild(draggerContainer);
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}
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else
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root->addChild(dragger);
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float scale = scene->getBound().radius() * 1.6;
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dragger->setMatrix(osg::Matrix::scale(scale, scale, scale) *
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osg::Matrix::translate(scene->getBound().center()));
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if (dynamic_cast<osgManipulator::TabPlaneDragger*>(dragger))
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{
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dragger->addTransformUpdating(transform, osgManipulator::DraggerTransformCallback::HANDLE_TRANSLATE_IN_LINE);
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}
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else
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{
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dragger->addTransformUpdating(transform);
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}
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// we want the dragger to handle it's own events automatically
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dragger->setHandleEvents(true);
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// if we don't set an activation key or mod mask then any mouse click on
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// the dragger will activate it, however if do define either of ActivationModKeyMask or
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// and ActivationKeyEvent then you'll have to press either than mod key or the specified key to
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// be able to activate the dragger when you mouse click on it. Please note the follow allows
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// activation if either the ctrl key or the 'a' key is pressed and held down.
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dragger->setActivationModKeyMask(osgGA::GUIEventAdapter::MODKEY_CTRL);
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dragger->setActivationKeyEvent('a');
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return root;
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}
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osg::Node* createDemoScene(bool fixedSizeInScreen) {
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osg::Group* root = new osg::Group;
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osg::ref_ptr<osg::Geode> geode_1 = new osg::Geode;
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osg::ref_ptr<osg::MatrixTransform> transform_1 = new osg::MatrixTransform;
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osg::ref_ptr<osg::Geode> geode_2 = new osg::Geode;
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osg::ref_ptr<osg::MatrixTransform> transform_2 = new osg::MatrixTransform;
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osg::ref_ptr<osg::Geode> geode_3 = new osg::Geode;
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osg::ref_ptr<osg::MatrixTransform> transform_3 = new osg::MatrixTransform;
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osg::ref_ptr<osg::Geode> geode_4 = new osg::Geode;
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osg::ref_ptr<osg::MatrixTransform> transform_4 = new osg::MatrixTransform;
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osg::ref_ptr<osg::Geode> geode_5 = new osg::Geode;
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osg::ref_ptr<osg::MatrixTransform> transform_5 = new osg::MatrixTransform;
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osg::ref_ptr<osg::Geode> geode_6 = new osg::Geode;
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osg::ref_ptr<osg::MatrixTransform> transform_6 = new osg::MatrixTransform;
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osg::ref_ptr<osg::Geode> geode_7 = new osg::Geode;
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osg::ref_ptr<osg::MatrixTransform> transform_7 = new osg::MatrixTransform;
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const float radius = 0.8f;
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const float height = 1.0f;
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osg::ref_ptr<osg::TessellationHints> hints = new osg::TessellationHints;
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hints->setDetailRatio(2.0f);
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osg::ref_ptr<osg::ShapeDrawable> shape;
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shape = new osg::ShapeDrawable(new osg::Box(osg::Vec3(0.0f, 0.0f, -2.0f), 10, 10.0f, 0.1f), hints.get());
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shape->setColor(osg::Vec4(0.5f, 0.5f, 0.7f, 1.0f));
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geode_1->addDrawable(shape.get());
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shape = new osg::ShapeDrawable(new osg::Cylinder(osg::Vec3(0.0f, 0.0f, 0.0f), radius * 2,radius), hints.get());
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shape->setColor(osg::Vec4(0.8f, 0.8f, 0.8f, 1.0f));
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geode_2->addDrawable(shape.get());
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shape = new osg::ShapeDrawable(new osg::Cylinder(osg::Vec3(-3.0f, 0.0f, 0.0f), radius,radius), hints.get());
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shape->setColor(osg::Vec4(0.6f, 0.8f, 0.8f, 1.0f));
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geode_3->addDrawable(shape.get());
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shape = new osg::ShapeDrawable(new osg::Cone(osg::Vec3(3.0f, 0.0f, 0.0f), 2 * radius,radius), hints.get());
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shape->setColor(osg::Vec4(0.4f, 0.9f, 0.3f, 1.0f));
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geode_4->addDrawable(shape.get());
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shape = new osg::ShapeDrawable(new osg::Cone(osg::Vec3(0.0f, -3.0f, 0.0f), radius, height), hints.get());
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shape->setColor(osg::Vec4(0.2f, 0.5f, 0.7f, 1.0f));
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geode_5->addDrawable(shape.get());
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shape = new osg::ShapeDrawable(new osg::Cylinder(osg::Vec3(0.0f, 3.0f, 0.0f), radius, height), hints.get());
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shape->setColor(osg::Vec4(1.0f, 0.3f, 0.3f, 1.0f));
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geode_6->addDrawable(shape.get());
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shape = new osg::ShapeDrawable(new osg::Cone(osg::Vec3(0.0f, 0.0f, 3.0f), 2.0f, 2.0f), hints.get());
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shape->setColor(osg::Vec4(0.8f, 0.8f, 0.4f, 1.0f));
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geode_7->addDrawable(shape.get());
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// material
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osg::ref_ptr<osg::Material> matirial = new osg::Material;
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matirial->setColorMode(osg::Material::DIFFUSE);
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matirial->setAmbient(osg::Material::FRONT_AND_BACK, osg::Vec4(0, 0, 0, 1));
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matirial->setSpecular(osg::Material::FRONT_AND_BACK, osg::Vec4(1, 1, 1, 1));
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matirial->setShininess(osg::Material::FRONT_AND_BACK, 64.0f);
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root->getOrCreateStateSet()->setAttributeAndModes(matirial.get(), osg::StateAttribute::ON);
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transform_1.get()->addChild(addDraggerToScene(geode_1.get(),"TabBoxDragger",fixedSizeInScreen));
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transform_2.get()->addChild(addDraggerToScene(geode_2.get(),"TabPlaneDragger",fixedSizeInScreen));
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transform_3.get()->addChild(addDraggerToScene(geode_3.get(),"TabBoxTrackballDragger",fixedSizeInScreen));
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transform_4.get()->addChild(addDraggerToScene(geode_4.get(),"TrackballDragger",fixedSizeInScreen));
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transform_5.get()->addChild(addDraggerToScene(geode_5.get(),"Translate1DDragger",fixedSizeInScreen));
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transform_6.get()->addChild(addDraggerToScene(geode_6.get(),"Translate2DDragger",fixedSizeInScreen));
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transform_7.get()->addChild(addDraggerToScene(geode_7.get(),"TranslateAxisDragger",fixedSizeInScreen));
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root->addChild(transform_1.get());
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root->addChild(transform_2.get());
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root->addChild(transform_3.get());
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root->addChild(transform_4.get());
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root->addChild(transform_5.get());
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root->addChild(transform_6.get());
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root->addChild(transform_7.get());
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return root;
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}
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//
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int main( int argc, char **argv )
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{
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// use an ArgumentParser object to manage the program arguments.
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osg::ArgumentParser arguments(&argc,argv);
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// set up the usage document, in case we need to print out how to use this program.
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arguments.getApplicationUsage()->setApplicationName(arguments.getApplicationName());
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arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...");
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arguments.getApplicationUsage()->addCommandLineOption("--image <filename>","Load an image and render it on a quad");
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arguments.getApplicationUsage()->addCommandLineOption("--dem <filename>","Load an image/DEM and render it on a HeightField");
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arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display command line parameters");
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arguments.getApplicationUsage()->addCommandLineOption("--help-env","Display environmental variables available");
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arguments.getApplicationUsage()->addCommandLineOption("--help-keys","Display keyboard & mouse bindings available");
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arguments.getApplicationUsage()->addCommandLineOption("--help-all","Display all command line, env vars and keyboard & mouse bindings.");
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arguments.getApplicationUsage()->addCommandLineOption("--dragger <draggername>","Use the specified dragger for manipulation [TabPlaneDragger, TabPlaneTrackballDragger, TrackballDragger, Translate1DDragger, Translate2DDragger, TranslateAxisDragger, TabBoxDragger, TranslatePlaneDragger, Scale1DDragger, Scale2DDragger, RotateCylinderDragger, RotateSphereDragger]");
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arguments.getApplicationUsage()->addCommandLineOption("--fixedDraggerSize","Fix the size of the dragger geometry in the screen space");
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bool fixedSizeInScreen = false;
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while (arguments.read("--fixedDraggerSize")) { fixedSizeInScreen = true; }
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// construct the viewer.
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osgViewer::Viewer viewer(arguments);
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|
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// add the window size toggle handler
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|
viewer.addEventHandler(new osgViewer::WindowSizeHandler);
|
|
|
|
// get details on keyboard and mouse bindings used by the viewer.
|
|
viewer.getUsage(*arguments.getApplicationUsage());
|
|
|
|
|
|
if (arguments.read("--test-NodeMask"))
|
|
{
|
|
const osg::ref_ptr<osg::Group> group = new osg::Group();
|
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group->setNodeMask(0);
|
|
|
|
const osg::ref_ptr<osgManipulator::AntiSquish> antiSquish = new osgManipulator::AntiSquish();
|
|
|
|
group->addChild(antiSquish.get());
|
|
|
|
const osg::ref_ptr<osg::Node> node = new osg::Node();
|
|
node->setInitialBound(osg::BoundingSphere(osg::Vec3(0.0, 0.0, 0.0), 1.0));
|
|
|
|
antiSquish->addChild(node.get());
|
|
|
|
group->getBound();
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
|
|
// if user request help write it out to cout.
|
|
bool helpAll = arguments.read("--help-all");
|
|
unsigned int helpType = ((helpAll || arguments.read("-h") || arguments.read("--help"))? osg::ApplicationUsage::COMMAND_LINE_OPTION : 0 ) |
|
|
((helpAll || arguments.read("--help-env"))? osg::ApplicationUsage::ENVIRONMENTAL_VARIABLE : 0 ) |
|
|
((helpAll || arguments.read("--help-keys"))? osg::ApplicationUsage::KEYBOARD_MOUSE_BINDING : 0 );
|
|
if (helpType)
|
|
{
|
|
arguments.getApplicationUsage()->write(std::cout, helpType);
|
|
return 1;
|
|
}
|
|
|
|
// report any errors if they have occurred when parsing the program arguments.
|
|
if (arguments.errors())
|
|
{
|
|
arguments.writeErrorMessages(std::cout);
|
|
return 1;
|
|
}
|
|
|
|
std::string dragger_name = "TabBoxDragger";
|
|
arguments.read("--dragger", dragger_name);
|
|
|
|
osg::Timer_t start_tick = osg::Timer::instance()->tick();
|
|
|
|
// read the scene from the list of file specified command line args.
|
|
osg::ref_ptr<osg::Node> loadedModel = osgDB::readRefNodeFiles(arguments);
|
|
|
|
// if no model has been successfully loaded report failure.
|
|
bool tragger2Scene(true);
|
|
if (!loadedModel)
|
|
{
|
|
//std::cout << arguments.getApplicationName() <<": No data loaded" << std::endl;
|
|
//return 1;
|
|
loadedModel = createDemoScene(fixedSizeInScreen);
|
|
tragger2Scene=false;
|
|
}
|
|
|
|
// any option left unread are converted into errors to write out later.
|
|
arguments.reportRemainingOptionsAsUnrecognized();
|
|
|
|
// report any errors if they have occurred when parsing the program arguments.
|
|
if (arguments.errors())
|
|
{
|
|
arguments.writeErrorMessages(std::cout);
|
|
}
|
|
|
|
osg::Timer_t end_tick = osg::Timer::instance()->tick();
|
|
|
|
std::cout << "Time to load = "<<osg::Timer::instance()->delta_s(start_tick,end_tick)<<std::endl;
|
|
|
|
|
|
// optimize the scene graph, remove redundant nodes and state etc.
|
|
osgUtil::Optimizer optimizer;
|
|
optimizer.optimize(loadedModel);
|
|
|
|
|
|
// pass the loaded scene graph to the viewer.
|
|
if ( tragger2Scene ) {
|
|
viewer.setSceneData(addDraggerToScene(loadedModel.get(), dragger_name, fixedSizeInScreen));
|
|
} else {
|
|
viewer.setSceneData(loadedModel);
|
|
}
|
|
|
|
|
|
return viewer.run();
|
|
}
|
|
|