Hi all, Having a bug with the osgManipulator, I succeed to reproduce it on an osg example I modified. See in attached file. The interesting code is at the end of the file, the bug is line 386.
Problem : if the viewer->run() is not called is the same block where it was created, the application crashes when I manipulate a node with the handlers. I have tried to modify osgManipulator sources but nothing succeed... I you can have a look and help me... Thanks a lot. Regards, Vincent.
/* OpenSceneGraph example, osgmanipulator. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include <osgDB/ReadFile> #include <osgUtil/Optimizer> #include <osgViewer/Viewer> #include <osg/CoordinateSystemNode> #include <osgText/Text> #include <osgManipulator/CommandManager> #include <osgManipulator/TabBoxDragger> #include <osgManipulator/TabPlaneDragger> #include <osgManipulator/TabPlaneTrackballDragger> #include <osgManipulator/TrackballDragger> #include <osgManipulator/Translate1DDragger> #include <osgManipulator/Translate2DDragger> #include <osgManipulator/TranslateAxisDragger> #include <osgViewer/CompositeViewer> #include <osgViewer/View> #include <osg/ShapeDrawable> #include <osg/MatrixTransform> #include <osg/Geometry> #include <osg/Material> #include <iostream> osgManipulator::Dragger* createDragger(const std::string& name) { osgManipulator::Dragger* dragger = 0; if ("TabPlaneDragger" == name) { osgManipulator::TabPlaneDragger* d = new osgManipulator::TabPlaneDragger(); d->setupDefaultGeometry(); dragger = d; } else if ("TabPlaneTrackballDragger" == name) { osgManipulator::TabPlaneTrackballDragger* d = new osgManipulator::TabPlaneTrackballDragger(); d->setupDefaultGeometry(); dragger = d; } else if ("TrackballDragger" == name) { osgManipulator::TrackballDragger* d = new osgManipulator::TrackballDragger(); d->setupDefaultGeometry(); dragger = d; } else if ("Translate1DDragger" == name) { osgManipulator::Translate1DDragger* d = new osgManipulator::Translate1DDragger(); d->setupDefaultGeometry(); dragger = d; } else if ("Translate2DDragger" == name) { osgManipulator::Translate2DDragger* d = new osgManipulator::Translate2DDragger(); d->setupDefaultGeometry(); dragger = d; } else if ("TranslateAxisDragger" == name) { osgManipulator::TranslateAxisDragger* d = new osgManipulator::TranslateAxisDragger(); d->setupDefaultGeometry(); dragger = d; } else { osgManipulator::TabBoxDragger* d = new osgManipulator::TabBoxDragger(); d->setupDefaultGeometry(); dragger = d; } return dragger; } osg::Node* createHUD() { osg::Geode* geode = new osg::Geode(); std::string timesFont("fonts/arial.ttf"); osg::StateSet* stateset = geode->getOrCreateStateSet(); stateset->setMode(GL_LIGHTING,osg::StateAttribute::OFF); osgText::Text* text = new osgText::Text; geode->addDrawable( text ); osg::Vec3 position(50.0f,50.0f,0.0f); text->setPosition(position); text->setText("Use the Tab key to switch between the trackball and pick modes."); text->setFont(timesFont); osg::Camera* camera = new osg::Camera; // set the projection matrix camera->setProjectionMatrix(osg::Matrix::ortho2D(0,1280,0,1024)); // set the view matrix camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF); camera->setViewMatrix(osg::Matrix::identity()); // only clear the depth buffer camera->setClearMask(GL_DEPTH_BUFFER_BIT); // draw subgraph after main camera view. camera->setRenderOrder(osg::Camera::POST_RENDER); camera->addChild(geode); return camera; } osg::Node* addDraggerToScene(osg::Node* scene, osgManipulator::CommandManager* cmdMgr, const std::string& name) { scene->getOrCreateStateSet()->setMode(GL_NORMALIZE, osg::StateAttribute::ON); osgManipulator::Selection* selection = new osgManipulator::Selection; selection->addChild(scene); osgManipulator::Dragger* dragger = createDragger(name); osg::Group* root = new osg::Group; root->addChild(dragger); root->addChild(selection); root->addChild(createHUD()); float scale = scene->getBound().radius() * 1.6; dragger->setMatrix(osg::Matrix::scale(scale, scale, scale) * osg::Matrix::translate(scene->getBound().center())); cmdMgr->connect(*dragger, *selection); return root; } osg::Node* createDemoScene(osgManipulator::CommandManager* cmdMgr) { osg::Group* root = new osg::Group; osg::ref_ptr<osg::Geode> geode_1 = new osg::Geode; osg::ref_ptr<osg::MatrixTransform> transform_1 = new osg::MatrixTransform; osg::ref_ptr<osg::Geode> geode_2 = new osg::Geode; osg::ref_ptr<osg::MatrixTransform> transform_2 = new osg::MatrixTransform; osg::ref_ptr<osg::Geode> geode_3 = new osg::Geode; osg::ref_ptr<osg::MatrixTransform> transform_3 = new osg::MatrixTransform; osg::ref_ptr<osg::Geode> geode_4 = new osg::Geode; osg::ref_ptr<osg::MatrixTransform> transform_4 = new osg::MatrixTransform; osg::ref_ptr<osg::Geode> geode_5 = new osg::Geode; osg::ref_ptr<osg::MatrixTransform> transform_5 = new osg::MatrixTransform; osg::ref_ptr<osg::Geode> geode_6 = new osg::Geode; osg::ref_ptr<osg::MatrixTransform> transform_6 = new osg::MatrixTransform; osg::ref_ptr<osg::Geode> geode_7 = new osg::Geode; osg::ref_ptr<osg::MatrixTransform> transform_7 = new osg::MatrixTransform; const float radius = 0.8f; const float height = 1.0f; osg::ref_ptr<osg::TessellationHints> hints = new osg::TessellationHints; hints->setDetailRatio(2.0f); osg::ref_ptr<osg::ShapeDrawable> shape; shape = new osg::ShapeDrawable(new osg::Box(osg::Vec3(0.0f, 0.0f, -2.0f), 10, 10.0f, 0.1f), hints.get()); shape->setColor(osg::Vec4(0.5f, 0.5f, 0.7f, 1.0f)); geode_1->addDrawable(shape.get()); shape = new osg::ShapeDrawable(new osg::Cylinder(osg::Vec3(0.0f, 0.0f, 0.0f), radius * 2,radius), hints.get()); shape->setColor(osg::Vec4(0.8f, 0.8f, 0.8f, 1.0f)); geode_2->addDrawable(shape.get()); shape = new osg::ShapeDrawable(new osg::Cylinder(osg::Vec3(-3.0f, 0.0f, 0.0f), radius,radius), hints.get()); shape->setColor(osg::Vec4(0.6f, 0.8f, 0.8f, 1.0f)); geode_3->addDrawable(shape.get()); shape = new osg::ShapeDrawable(new osg::Cone(osg::Vec3(3.0f, 0.0f, 0.0f), 2 * radius,radius), hints.get()); shape->setColor(osg::Vec4(0.4f, 0.9f, 0.3f, 1.0f)); geode_4->addDrawable(shape.get()); shape = new osg::ShapeDrawable(new osg::Cone(osg::Vec3(0.0f, -3.0f, 0.0f), radius, height), hints.get()); shape->setColor(osg::Vec4(0.2f, 0.5f, 0.7f, 1.0f)); geode_5->addDrawable(shape.get()); shape = new osg::ShapeDrawable(new osg::Cylinder(osg::Vec3(0.0f, 3.0f, 0.0f), radius, height), hints.get()); shape->setColor(osg::Vec4(1.0f, 0.3f, 0.3f, 1.0f)); geode_6->addDrawable(shape.get()); shape = new osg::ShapeDrawable(new osg::Cone(osg::Vec3(0.0f, 0.0f, 3.0f), 2.0f, 2.0f), hints.get()); shape->setColor(osg::Vec4(0.8f, 0.8f, 0.4f, 1.0f)); geode_7->addDrawable(shape.get()); // material osg::ref_ptr<osg::Material> matirial = new osg::Material; matirial->setColorMode(osg::Material::DIFFUSE); matirial->setAmbient(osg::Material::FRONT_AND_BACK, osg::Vec4(0, 0, 0, 1)); matirial->setSpecular(osg::Material::FRONT_AND_BACK, osg::Vec4(1, 1, 1, 1)); matirial->setShininess(osg::Material::FRONT_AND_BACK, 64.0f); root->getOrCreateStateSet()->setAttributeAndModes(matirial.get(), osg::StateAttribute::ON); // transform_1.get()->addChild(addDraggerToScene(geode_1.get(),cmdMgr,"TabBoxDragger")); // transform_2.get()->addChild(addDraggerToScene(geode_2.get(),cmdMgr,"TabPlaneDragger")); // transform_3.get()->addChild(addDraggerToScene(geode_3.get(),cmdMgr,"TabPlaneTrackballDragger")); transform_4.get()->addChild(addDraggerToScene(geode_4.get(),cmdMgr,"TrackballDragger")); // transform_5.get()->addChild(addDraggerToScene(geode_5.get(),cmdMgr,"Translate1DDragger")); // transform_6.get()->addChild(addDraggerToScene(geode_6.get(),cmdMgr,"Translate2DDragger")); transform_7.get()->addChild(addDraggerToScene(geode_7.get(),cmdMgr,"TranslateAxisDragger")); root->addChild(transform_1.get()); root->addChild(transform_2.get()); root->addChild(transform_3.get()); root->addChild(transform_4.get()); root->addChild(transform_5.get()); root->addChild(transform_6.get()); root->addChild(transform_7.get()); return root; } class PickModeHandler : public osgGA::GUIEventHandler { public: enum Modes { VIEW = 0, PICK }; PickModeHandler(): _mode(VIEW), _activeDragger(0) { } bool handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& aa, osg::Object*, osg::NodeVisitor*) { osgViewer::View* view = dynamic_cast<osgViewer::View*>(&aa); if (!view) return false; if (ea.getKey() == osgGA::GUIEventAdapter::KEY_Tab && ea.getEventType() == osgGA::GUIEventAdapter::KEYDOWN && _activeDragger == 0) { _mode = ! _mode; } if (VIEW == _mode) return false; switch (ea.getEventType()) { case osgGA::GUIEventAdapter::PUSH: { osgUtil::LineSegmentIntersector::Intersections intersections; _pointer.reset(); if (view->computeIntersections(ea.getX(),ea.getY(),intersections)) { _pointer.setCamera(view->getCamera()); _pointer.setMousePosition(ea.getX(), ea.getY()); for(osgUtil::LineSegmentIntersector::Intersections::iterator hitr = intersections.begin(); hitr != intersections.end(); ++hitr) { _pointer.addIntersection(hitr->nodePath, hitr->getLocalIntersectPoint()); } for (osg::NodePath::iterator itr = _pointer._hitList.front().first.begin(); itr != _pointer._hitList.front().first.end(); ++itr) { osgManipulator::Dragger* dragger = dynamic_cast<osgManipulator::Dragger*>(*itr); if (dragger) { dragger->handle(_pointer, ea, aa); _activeDragger = dragger; break; } } } } case osgGA::GUIEventAdapter::DRAG: case osgGA::GUIEventAdapter::RELEASE: { if (_activeDragger) { _pointer._hitIter = _pointer._hitList.begin(); _pointer.setCamera(view->getCamera()); _pointer.setMousePosition(ea.getX(), ea.getY()); _activeDragger->handle(_pointer, ea, aa); } break; } default: break; } if (ea.getEventType() == osgGA::GUIEventAdapter::RELEASE) { _activeDragger = 0; _pointer.reset(); } return true; } private: unsigned int _mode; osgManipulator::Dragger* _activeDragger; osgManipulator::PointerInfo _pointer; }; class Launcher { public: osg::ref_ptr<osgViewer::CompositeViewer> compViewer; int init(){ create_windows(); run(); return 1; } int create_windows(){ compViewer = new osgViewer::CompositeViewer; osg::ref_ptr<osgViewer::View> view = new osgViewer::View; compViewer->addView(view.get()); osg::ref_ptr<osgManipulator::CommandManager> cmdMgr = new osgManipulator::CommandManager; osg::ref_ptr<osg::Node> loadedModel; loadedModel = createDemoScene(cmdMgr.get()); // optimize the scene graph, remove redundant nodes and state etc. osgUtil::Optimizer optimizer; optimizer.optimize(loadedModel.get()); view->setSceneData(loadedModel.get()); view->addEventHandler(new PickModeHandler()); /* Crash here : * If you call run() everything is good... * If you leave create_windows() and call run() after : crach when manipulating the handlers */ //run(); return 1; } int run(){ return compViewer->run(); } }; int main( int argc, char **argv ) { Launcher l; l.init(); return 1; }
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