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Added option to osgdepthpartion for loading the model specified on the commandline.

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This commit is contained in:
Robert Osfield 2005-10-27 13:53:55 +00:00
parent af1b539132
commit 52b7ce608e
3 changed files with 41 additions and 109 deletions
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2
examples/osgdepthpartition/GNUmakefile
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@ -12,7 +12,7 @@ INSTFILES = \
$(CXXFILES)\
GNUmakefile.inst=GNUmakefile
EXEC = osgdepthpartion
EXEC = osgdepthpartition
INC += $(X_INC)

2
examples/osgdepthpartition/GNUmakefile.inst
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@ -8,7 +8,7 @@ CXXFILES =\
LIBS += -losgProducer -lProducer -losgDB -losgText -losgUtil -losg $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS)
EXEC = osgdepthpartion
EXEC = osgdepthpartition
INC += $(X_INC)

146
examples/osgdepthpartition/osgdepthpartition.cpp
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@ -6,16 +6,6 @@
// The myGraphics class is a simple sample of how one would implement
// graphics drawing with Producer::RenderSurface
#include <stdio.h>
#include <Producer/Camera>
#include <Producer/CameraConfig>
#include <Producer/InputArea>
#include <Producer/KeyboardMouse>
#include <Producer/Trackball>
#include <osg/Timer>
#include <osgUtil/UpdateVisitor>
#include <osgDB/ReadFile>
@ -23,66 +13,10 @@
#include <osg/ShapeDrawable>
#include <osg/PositionAttitudeTransform>
#include <osgProducer/OsgCameraGroup>
#include <osgProducer/OsgSceneHandler>
#include <osgProducer/Viewer>
#include "DepthPartitionNode.h"
class MyKeyboardMouseCallback : public Producer::KeyboardMouseCallback
{
public:
MyKeyboardMouseCallback() :
Producer::KeyboardMouseCallback(),
_mx(0.0f),_my(0.0f),_mbutton(0),
_done(false)
{}
virtual void specialKeyPress( Producer::KeyCharacter key )
{
if (key==Producer::KeyChar_Escape)
shutdown();
}
virtual void shutdown()
{
_done = true;
}
virtual void keyPress( Producer::KeyCharacter )
{
}
virtual void mouseMotion( float mx, float my )
{
_mx = mx;
_my = my;
}
virtual void buttonPress( float mx, float my, unsigned int mbutton )
{
_mx = mx;
_my = my;
_mbutton |= (1<<(mbutton-1));
}
virtual void buttonRelease( float mx, float my, unsigned int mbutton )
{
_mx = mx;
_my = my;
_mbutton &= ~(1<<(mbutton-1));
}
bool done() { return _done; }
float mx() { return _mx; }
float my() { return _my; }
unsigned int mbutton() { return _mbutton; }
private:
float _mx, _my;
unsigned int _mbutton;
bool _done;
};
const double r_earth = 6378.137;
const double r_sun = 695990.0;
const double AU = 149697900.0;
@ -135,8 +69,11 @@ int main( int argc, char **argv )
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] ...");
arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display this information");
// create the camera group.
osgProducer::OsgCameraGroup cg(arguments);
// construct the viewer.
osgProducer::Viewer viewer(arguments);
// set up the value with sensible default event handlers.
viewer.setUpViewer(osgProducer::Viewer::STANDARD_SETTINGS);
// if user request help write it out to cout.
if (arguments.read("-h") || arguments.read("--help"))
@ -155,62 +92,57 @@ int main( int argc, char **argv )
return 1;
}
// set up the keyboard and mouse handling.
Producer::InputArea *ia = cg.getCameraConfig()->getInputArea();
Producer::KeyboardMouse *kbm = ia ?
(new Producer::KeyboardMouse(ia)) :
(new Producer::KeyboardMouse(cg.getCamera(0)->getRenderSurface()));
bool needToSetHomePosition = false;
osg::ref_ptr<MyKeyboardMouseCallback> kbmcb = new MyKeyboardMouseCallback;
// read the scene from the list of file specified commandline args.
osg::ref_ptr<osg::Node> scene = osgDB::readNodeFiles(arguments);
// if one hasn't been loaded create an earth and sun test model.
if (!scene)
{
scene = createScene();
needToSetHomePosition = true;
}
// register the callback with the keyboard mouse manger.
kbm->setCallback( kbmcb.get() );
kbm->startThread();
// Create a DepthPartitionNode to manage partitioning of the scene
DepthPartitionNode *dpn = new DepthPartitionNode;
osg::Node* scene = createScene();
dpn->addChild(scene);
osg::ref_ptr<DepthPartitionNode> dpn = new DepthPartitionNode;
dpn->addChild(scene.get());
dpn->setActive(true); // Control whether the node analyzes the scene
// set the scene to render
cg.setSceneData(dpn);
// pass the loaded scene graph to the viewer.
viewer.setSceneData(dpn.get());
// Set the view to be looking at the earth
osg::BoundingSphere bs;
bs._radius = r_earth;
osg::ref_ptr<Producer::Trackball> tb = new Producer::Trackball;
tb->setOrientation( Producer::Trackball::Z_UP );
tb->setDistance(bs.radius()*10.0f);
tb->translate(-bs.center().x(),-bs.center().y(),-bs.center().z());
if (needToSetHomePosition)
{
viewer.getKeySwitchMatrixManipulator()->setHomePosition(osg::Vec3d(0.0,-5.0*r_earth,0.0),osg::Vec3d(0.0,0.0,0.0),osg::Vec3d(0.0,0.0,1.0));
}
// create the windows and run the threads.
cg.realize();
viewer.realize();
osgUtil::UpdateVisitor update;
while( !kbmcb->done() )
while( !viewer.done() )
{
// syncronize to the when cull and draw threads have completed.
cg.sync();
// wait for all cull and draw threads to complete.
viewer.sync();
// update the scene by traversing it with the the update visitor which will
// call all node update callbacks and animations.
cg.getSceneData()->accept(update);
tb->input( kbmcb->mx(), kbmcb->my(), kbmcb->mbutton() );
// update the main producer camera
cg.setViewByMatrix(tb->getMatrix());
viewer.update();
// fire off the cull and draw traversals of the scene.
cg.frame();
viewer.frame();
}
// wait for all cull and draw threads to complete before exit.
viewer.sync();
// syncronize to the when cull and draw threads have completed.
cg.sync();
// run a clean up frame to delete all OpenGL objects.
viewer.cleanup_frame();
// wait for all the clean up frame to complete.
viewer.sync();
return 0;
}