Added support for multiple cameras into osgpick.

examples/osgpick/osgpick.cpp

@@ -32,12 +32,44 @@
 
 
 
+static Producer::CameraConfig *BuildConfig(void)
+{
+    Producer::RenderSurface *rs1 = new Producer::RenderSurface;
+    rs1->setScreenNum(0);
+    //rs1->useBorder(false);
+    rs1->setWindowRect(0,0,640,480);
+    Producer::Camera *camera1 = new Producer::Camera;
+    camera1->setRenderSurface(rs1);
+    camera1->setOffset( 1.0, 0.0 );
+
+    Producer::RenderSurface *rs2 = new Producer::RenderSurface;
+    rs2->setScreenNum(0);
+    //rs2->useBorder(false);
+    rs2->setWindowRect(640,0,640,480);
+    Producer::Camera *camera2 = new Producer::Camera;
+    camera2->setRenderSurface(rs2);
+    camera2->setOffset( -1.0, 0.0 );
+
+    Producer::InputArea *ia = new Producer::InputArea;
+    ia->addInputRectangle( rs1, Producer::InputRectangle(0.0,0.5,0.0,1.0));
+    ia->addInputRectangle( rs2, Producer::InputRectangle(0.5,1.0,0.0,1.0));
+//    ia->addInputRectangle( rs1, Producer::InputRectangle(-1.0,0.0,-1.0,1.0));
+//    ia->addInputRectangle( rs2, Producer::InputRectangle(0.0,1.0,-1.0,1.0));
+
+
+    Producer::CameraConfig *cfg = new Producer::CameraConfig;
+    cfg->addCamera("Camera 1",camera1);
+    cfg->addCamera("Camera 2", camera2);
+    cfg->setInputArea(ia);
+    return cfg;
+}
+
 // class to handle events with a pick
 class PickHandler : public osgGA::GUIEventHandler {
 public: 
 
-    PickHandler(osgProducer::OsgCameraGroup* cg,osgText::Text* updateText):
-        _cg(cg),
+    PickHandler(osgProducer::Viewer* viewer,osgText::Text* updateText):
+        _viewer(viewer),
         _updateText(updateText) {}
         
     ~PickHandler() {}
@@ -53,7 +85,7 @@ public:
     
 protected:
 
-    osgProducer::OsgCameraGroup *_cg;
+    osgProducer::Viewer* _viewer;
     osg::ref_ptr<osgText::Text>  _updateText;
 };
 
@@ -76,21 +108,64 @@ void PickHandler::pick(const osgGA::GUIEventAdapter& ea)
 {
     // OK here is the interesting bit - How To Pick a Geode
     // including geodes in a HUD under a Projection Matrix
-    osg::Node *scene=_cg->getSceneData();//main node of the scene.
+    osg::Node *scene=_viewer->getSceneData();//main node of the scene.
     if (scene)
     {
-        float x=ea.getXnormalized();
-        float y=ea.getYnormalized();
+        float x=ea.getX();
+        float y=ea.getY();
+
+
+        Producer::KeyboardMouse* km = _viewer->getKeyboardMouse();
+
+
+        std::string gdlist="";
+
+        for(unsigned int i=0;i<_viewer->getNumberOfCameras();++i)
+        {
+            Producer::Camera* cmm=_viewer->getCamera(i);
+            Producer::RenderSurface* rs = cmm->getRenderSurface();
+
+            std::cout << "checking camara "<<i<<std::endl;
+
+            float pixel_x,pixel_y;
+            if (km->computePixelCoords(x,y,rs,pixel_x,pixel_y))
+            {
+                std::cout << "    compute pixel coords "<<pixel_x<<"  "<<pixel_y<<std::endl;
+
+                int pr_wx, pr_wy;
+                unsigned int pr_width, pr_height;
+                cmm->getProjectionRect( pr_wx, pr_wy, pr_width, pr_height );
+
+                int rs_wx, rs_wy;
+                unsigned int rs_width, rs_height;
+                rs->getWindowRect( rs_wx, rs_wy, rs_width, rs_height );
+                
+                pr_wx += rs_wx;
+                pr_wy += rs_wy;
+
+                std::cout << "    wx = "<<pr_wx<<"  wy = "<<pr_wy<<" width="<<pr_width<<" height="<<pr_height<<std::endl;
+
+
+
+                if (pixel_x<(float)pr_wx) break;
+                if (pixel_x>(float)(pr_wx+pr_width)) break;
+
+                if (pixel_y<(float)pr_wy) break;
+                if (pixel_y>(float)(pr_wy+pr_height)) break;
+
+
+                float rx = 2.0f*(pixel_x - (float)pr_wx)/(float)pr_width-1.0f;
+                float ry = 2.0f*(pixel_y - (float)pr_wy)/(float)pr_height-1.0f;
+
+                std::cout << "    rx "<<rx<<"  "<<ry<<std::endl;
 
-        Producer::Camera *cmm=_cg->getCamera(0);
                 osg::Matrix vum(osg::Matrix(cmm->getViewMatrix()) *
                                 osg::Matrix(cmm->getProjectionMatrix())/* * 
                                 osg::Matrix::translate(1.0f,1.0f,1.0f) *
                                 osg::Matrix::scale(0.5f,0.5f,0.5f)*/);
 
                 osgUtil::PickVisitor iv;
-        osgUtil::IntersectVisitor::HitList& hlist=iv.getHits(scene, vum, x,y);
-        std::string gdlist="";
+                osgUtil::IntersectVisitor::HitList& hlist=iv.getHits(scene, vum, rx,ry);
                 if (iv.hits())
                 {
                     for(osgUtil::IntersectVisitor::HitList::iterator hitr=hlist.begin();
@@ -114,6 +189,9 @@ void PickHandler::pick(const osgGA::GUIEventAdapter& ea)
                         } 
                     }
                 }
+            }
+        }
+
         setLabel(gdlist);
     }
 }
@@ -223,7 +301,8 @@ int main( int argc, char **argv )
     
 
     // construct the viewer.
-    osgProducer::Viewer viewer(arguments);
+    //osgProducer::Viewer viewer(arguments);
+    osgProducer::Viewer viewer(BuildConfig());
 
     // set up the value with sensible default event handlers.
     viewer.setUpViewer(osgProducer::Viewer::STANDARD_SETTINGS);

include/osgProducer/Viewer

@@ -92,6 +92,15 @@ class OSGPRODUCER_EXPORT Viewer : public OsgCameraGroup, public osgGA::GUIAction
         virtual void requestContinuousUpdate(bool) {}
         virtual void requestWarpPointer(float x,float y);
 
+        Producer::KeyboardMouse* getKeyboardMouse() { return _kbmcb==0?0:_kbmcb->getKeyboardMouse(); }
+
+        const Producer::KeyboardMouse* getKeyboardMouse() const { return _kbmcb==0?0:_kbmcb->getKeyboardMouse(); }
+        
+        KeyboardMouseCallback* getKeyboardMouseCallback() { return _kbmcb; }
+
+        const KeyboardMouseCallback* getKeyboardMouseCallback() const { return _kbmcb; }
+
+
         typedef std::list< osg::ref_ptr<osgGA::GUIEventHandler> > EventHandlerList;
         EventHandlerList& getEventHandlerList() { return _eventHandlerList; }
         const EventHandlerList& getEventHandlerList() const { return _eventHandlerList; }