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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