Changeset 353 for experimental/distortionNG

Timestamp:

Apr 21, 2012, 9:49:26 PM (13 years ago)

Author:

Torben Dannhauer

Message:

DistortionManipulator? is working (alpha stadium)

Location:

experimental/distortionNG

Files:

• DistortionManipulator.cpp (modified) (7 diffs)
• DistortionManipulator.h (modified) (5 diffs)
• DistortionSet.cpp (modified) (2 diffs)
• DistortionSet.h (modified) (3 diffs)
• distortionNG.cpp (modified) (2 diffs)
• distortionNG.h (modified) (1 diff)
• extViewer.cpp (modified) (2 diffs)
• main.cpp (modified) (2 diffs)

experimental/distortionNG/DistortionManipulator.cpp

@@ -20 +20 @@
 
 #include<osgViewer/Viewer>
+#include<osg/Point>
 
 using namespace osg;
@@ -25 +26 @@
 
 
-DistortionManipulator::DistortionManipulator()
+DistortionManipulator::DistortionManipulator(DistortionSet* ds)
+ : _highlightColor( osg::Vec4(1.0f, 1.0f, 0.0f, 1.0f) ), _distortionSet( ds )
 {
         activeSetupMode = DISABLED;
@@ -32 +34 @@
         activeVisualizationMode = NONE;
 
-        _distortionSet = NULL;
+        _highlighter = NULL;
+        
+        createVertexHighlighter();
+
+        _camera = 0;
+        //_distortionMesh(distortionMesh)
 }
 
@@ -52 +59 @@
 bool DistortionManipulator::handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& aa, osg::Object* obj, osg::NodeVisitor* nv)
 {
-        //osgViewer::View* viewer = dynamic_cast<osgViewer::View*>(&aa);
-        //if ( viewer && !_distortionSet.isValid())
-        //{
-        //      OSG_ALWAYS<<"Fetching valid DistortionSet!"<<std::endl;
-        //      _distortionSet = viewer->getDistortionSet();
-        //}
-
         switch(ea.getEventType())
     {
@@ -64 +64 @@
         case(osgGA::GUIEventAdapter::DRAG):
                 {
-                        OSG_ALWAYS<<"DRAG!"<<std::endl;
-                        break;
+                        osg::notify(osg::ALWAYS)<<std::endl<<"Drag:"<<std::endl<<"ea.getGraphicsContext()="<<ea.getGraphicsContext()<<std::endl;
+                        osg::notify(osg::ALWAYS)<<"ea.getXnormalized()="<<ea.getXnormalized()<<std::endl;
+                        osg::notify(osg::ALWAYS)<<"ea.getYnormalized()="<<ea.getYnormalized()<<std::endl;
+                        osg::notify(osg::ALWAYS)<<"ea.getX()="<<ea.getX()<<std::endl;
+                        osg::notify(osg::ALWAYS)<<"ea.getXin()="<<ea.getXmin()<<std::endl;
+                        osg::notify(osg::ALWAYS)<<"ea.getXmax()="<<ea.getXmax()<<std::endl;
+                        osg::notify(osg::ALWAYS)<<"ea.getY()="<<ea.getY()<<std::endl;
+                        osg::notify(osg::ALWAYS)<<"ea.getYin()="<<ea.getYmin()<<std::endl;
+                        osg::notify(osg::ALWAYS)<<"ea.getYmax()="<<ea.getYmax()<<std::endl;
+
+                        return true;    // true means event handled: not forwarded to the camera manipulator;
+
                 }
         case(osgGA::GUIEventAdapter::PUSH):
                 {
-                        if(ea.getButton() == osgGA::GUIEventAdapter::LEFT_MOUSE_BUTTON)
-                        {
-                                OSG_ALWAYS<<"mouse click left!"<<std::endl;
+                        OSG_ALWAYS<<"mouse click!"<<std::endl;
+                        if ( activeSetupMode == MANUAL && ea.getModKeyMask()&osgGA::GUIEventAdapter::MODKEY_CTRL && ea.getButton() == osgGA::GUIEventAdapter::LEFT_MOUSE_BUTTON )
+                        {
+                                osgViewer::View* viewer = dynamic_cast<osgViewer::View*>(&aa);
+                                if ( viewer )
+                                {
+                                        osg::notify(osg::ALWAYS)<<std::endl<<"Intersection:"<<std::endl<<"ea.getX()="<<ea.getX()<<std::endl;
+                                        osg::notify(osg::ALWAYS)<<"ea.getY()="<<ea.getY()<<std::endl;
+                                        osg::ref_ptr<osgUtil::LineSegmentIntersector> intersector = new osgUtil::LineSegmentIntersector(osgUtil::Intersector::PROJECTION, ea.getX(), ea.getY());
+                                        osgUtil::IntersectionVisitor iv( intersector.get() );
+                                        _distortionSet->getDistortionCamera()->accept( iv );
+                                
+                                        if ( intersector->containsIntersections() )
+                                        {
+                                                osgUtil::LineSegmentIntersector::Intersection& result = *(intersector->getIntersections().begin());
+                                                computeSelectedVertex( result );
+                                        }
+                                }
                         }
                         break;
@@ -92 +117 @@
                                 switch(activeSetupMode)
                                 {
-                                        case DISABLED : activeSetupMode = MANUAL; break;
-                                        case MANUAL : activeSetupMode = DELEGATED; break;
-                                        case DELEGATED : activeSetupMode = DISABLED; break;
+                                        case DISABLED : 
+                                        {
+                                                activeSetupMode = MANUAL;
+                                                OSG_ALWAYS<<"SetupMode MANUAL activated"<<std::endl;
+                                                _distortionSet->getDistortionInternals()->setValue(1, true); // per definition #0 = mesh, #1 = highlighter
+                                                break;
+                                        }
+                                        case MANUAL :
+                                        {
+                                                activeSetupMode = DELEGATED;
+                                                _distortionSet->getDistortionInternals()->setValue(1, false); // per definition #0 = mesh, #1 = highlighter
+                                                OSG_ALWAYS<<"SetupMode DELEGATED activated"<<std::endl;
+                                                break;
+                                        }
+                                        case DELEGATED :
+                                        {
+                                                activeSetupMode = DISABLED;
+                                                _distortionSet->getDistortionInternals()->setValue(1, false); // per definition #0 = mesh, #1 = highlighter
+                                                OSG_ALWAYS<<"SetupMode DISABLED activated"<<std::endl;
+                                                break;
+                                        }
                                 }
 
-                                OSG_ALWAYS<<"KEY_KP_4 : Setup Mode now "<<activeSetupMode<<std::endl;
                                 return(true);
                         }
@@ -229 +271 @@
                         _distortionSet->setShowIntensityMapOnly(show);
 }
+
+void DistortionManipulator::createVertexHighlighter()
+{
+        osg::ref_ptr<osg::Vec4Array> colors = new osg::Vec4Array(1);
+        (*colors)[0] = _highlightColor;
+
+        _highlighter = new osg::Geometry;
+        _highlighter->setDataVariance( osg::Object::DYNAMIC );
+        _highlighter->setUseDisplayList( false );
+        _highlighter->setUseVertexBufferObjects( true );
+        _highlighter->setVertexArray( new osg::Vec3Array(1) );  // The highlighter vertex is updated by computeSelectedVertex(..)
+        _highlighter->setColorArray( colors.get() );
+        _highlighter->setColorBinding( osg::Geometry::BIND_OVERALL );
+        _highlighter->addPrimitiveSet( new osg::DrawArrays(GL_POINTS, 0, 1) );
+
+        
+        osg::ref_ptr<osg::Geode> geode = new osg::Geode;
+        geode->addDrawable( _highlighter.get() );
+        geode->getOrCreateStateSet()->setAttributeAndModes( new osg::Point(8.0f) );
+        geode->getOrCreateStateSet()->setMode( GL_LIGHTING, osg::StateAttribute::OFF );
+        geode->setCullingActive(false); // disable the culling for the selector, otherwise the selector is culled away on the edge.
+
+        _distortionSet->getDistortionInternals()->addChild(geode, false);
+}
+
+void DistortionManipulator::computeSelectedVertex( osgUtil::LineSegmentIntersector::Intersection& result )
+{
+        osg::Geometry* geom = dynamic_cast<osg::Geometry*>( result.drawable.get() );
+        if ( !geom || geom==_highlighter )
+                return;
+
+        osg::Vec3Array* vertices = dynamic_cast<osg::Vec3Array*>( geom->getVertexArray() );
+        osg::Vec3Array* selVertices = dynamic_cast<osg::Vec3Array*>( _highlighter->getVertexArray() );
+        if ( !vertices || !selVertices )
+                return;
+        
+        OSG_NOTIFY(osg::ALWAYS)<<"size of vertices="<<vertices->size()<<std::endl;
+        OSG_NOTIFY(osg::ALWAYS)<<"size of selVertices="<<selVertices->size()<<std::endl;
+
+        osg::Vec3 point = result.getWorldIntersectPoint();
+        osg::Matrix matrix = osg::computeLocalToWorld( result.nodePath );       // To compute the intersection vertices in world coordinates not in model coordinates
+        OSG_NOTIFY(osg::ALWAYS) << "Intersection-indices: Size=" << result.indexList.size() << std::endl;
+        const std::vector<unsigned int>& selIndices = result.indexList;
+        {
+                double maxRatio = 0.0;
+                int closestVertexIndex = 0;
+                for ( unsigned int i=0; i<3 && i<result.ratioList.size(); i++ ) //iterate through rations and search for maxRation=nearestVertex
+                {
+                        if(result.ratioList[i] > maxRatio)
+                        {
+                                maxRatio = result.ratioList[i];
+                                closestVertexIndex = result.indexList[i];
+                        }
+                        OSG_NOTIFY(osg::ALWAYS)<<"maxRatio="<<maxRatio<<std::endl;
+                        OSG_NOTIFY(osg::ALWAYS)<<"closestVertexIndex="<<closestVertexIndex<<std::endl;
+                }
+                OSG_NOTIFY(osg::ALWAYS)<<"nearest vertex: X="<<(*vertices)[closestVertexIndex].x()<<" Y="<<(*vertices)[closestVertexIndex].y()<<" Z="<<(*vertices)[closestVertexIndex].z()<<std::endl;
+                osg::Vec3 vertex = (*vertices)[closestVertexIndex] * matrix;
+
+                selVertices->front() = vertex;          
+                OSG_NOTIFY(osg::ALWAYS)<<"selected vertice: X="<<vertex.x()<<" Y="<<vertex.y()<<" Z="<<vertex.z()<<std::endl;
+        }
+        selVertices->dirty();
+        _highlighter->dirtyBound(); 
+}

experimental/distortionNG/DistortionManipulator.h

@@ -21 +21 @@
 
 #include <osgGA/GUIEventHandler>
-#include<osg/Referenced>
+#include <osg/Referenced>
+#include <osg/Switch>
+#include <osg/Geometry>
+#include <osgUtil/IntersectionVisitor>
+#include <osgUtil/LineSegmentIntersector>
+
 #include "DistortionSet.h"
 
 
 namespace osgViewer {
+
 
 class DistortionManipulator : public osgGA::GUIEventHandler
@@ -50 +56 @@
 
 
-        DistortionManipulator();
+        DistortionManipulator(DistortionSet* ds);
         virtual ~DistortionManipulator();
 
@@ -58 +64 @@
         void setDistortionSet(DistortionSet* ds) {_distortionSet = ds;}
 
+        
+
 private:
         void resetIntensityMap();
@@ -63 +71 @@
         void showDistortionMesh(bool show);
         void showIntensityMap(bool show);
+
+        void computeSelectedVertex( osgUtil::LineSegmentIntersector::Intersection& result );
+        void createVertexHighlighter();
 
         SetupMode activeSetupMode;
@@ -70 +81 @@
 
         osg::ref_ptr<DistortionSet> _distortionSet;
+
+
+        osg::ref_ptr<osg::Geometry> _highlighter;
+    osg::observer_ptr<osg::Camera> _camera;
+        osg::Geometry* _distortionMesh;
+        const osg::Vec4 _highlightColor;
 };
 

experimental/distortionNG/DistortionSet.cpp

@@ -36 +36 @@
 
         _showIntesityMapMapOnly = false;
+
+        _camera = NULL;
+        _distortionInternals = NULL;
+
+        _distortionInternals = new osg::Switch();
 }
 
@@ -41 +46 @@
 {
 }
-
 
 REGISTER_OBJECT_WRAPPER( osgViewer_DistortionSet,                  // The unique wrapper name

experimental/distortionNG/DistortionSet.h

@@ -21 +21 @@
 #include <osg/Image>
 #include <osg/Matrixd>
+#include <osg/Camera>
+#include <osg/Switch>
 
 namespace osgViewer {
@@ -46 +48 @@
         osg::Image* getIntensityMap()  { return _intensityMap; }        // Also for manipulating the intensity map
         bool& getShowIntensityMapOnlyAsRef()    { return _showIntesityMapMapOnly;}
+
+        void setDistortionCamera(osg::Camera* camera)   { _camera = camera;}
+        osg::Camera* getDistortionCamera()      { return _camera.get(); }
+
+        osg::Switch* getDistortionInternals()   { return _distortionInternals; }
 
 
@@ -92 +99 @@
 
         bool _showIntesityMapMapOnly;   // Intensity Blending is done by a frag shader. To control it on runtime, the uniform must be bound to a central variable.
+
+        // Interconnect-Pointer to allow acces between distortion elements (osgViewer) and the distortion manipulator.
+        // These variable are therefor not saved/restored by the serializer but populated on runtime.
+        osg::observer_ptr<osg::Camera> _camera; // is used to pass the distortion cam from osgViewers setupDistortion() method to the manipulator.
+        osg::ref_ptr<osg::Switch> _distortionInternals;
 };
 

experimental/distortionNG/distortionNG.cpp

@@ -5 +5 @@
 
 #include<osgViewer/Viewer>
-
-
-
-distortionNG::distortionNG()
-{
-}
-
-distortionNG::~distortionNG()
-{
-}
 
 
@@ -79 +69 @@
         osg::notify(osg::ALWAYS)<<"ea.getYmax()="<<ea.getYmax()<<std::endl;
 
-                return true;    // true means event handeld: not forwarded to the camera manipulator;
+                return true;    // true means event handled: not forwarded to the camera manipulator;
         }
 

experimental/distortionNG/distortionNG.h

@@ -30 +30 @@
         const osg::Vec4 _highlightColor;
 };
-
-
-
-class distortionNG : public osg::Referenced
-{
-
-public:
-        distortionNG();
-        virtual ~distortionNG();
-};

experimental/distortionNG/extViewer.cpp

@@ -20 +20 @@
 #include "distortionNG.h"
 
+#include <osg/Switch>
 #include <osg/PolygonOffset>
 #include <osg/Texture2D>
@@ -273 +274 @@
         camera->setViewMatrix(osg::Matrix::identity());
 
-                osg::ref_ptr<osg::Group> root = new osg::Group;
-                root->addChild(geode);  // add mesh to root so camera renders mesh (and  thus render the scene)
+                osg::ref_ptr<osg::Switch> root = _distortionSet->getDistortionInternals();
+                root->addChild(geode, true);    // adds mesh,shader,.. so camera renders mesh (and  thus render the scene)
                 camera->addChild(root);
 
-                // selector
-                //geode->getOrCreateStateSet()->setMode( GL_LIGHTING, osg::StateAttribute::OFF );
-                //geode->getOrCreateStateSet()->setAttributeAndModes( new osg::PolygonOffset(1.0f, 1.0f) );
-                //osg::ref_ptr<distortionHandler> selectorHandler = new distortionHandler( camera, distortionMesh );
-                //osg::Geode* selectorHighlighter = selectorHandler->createVertexHighlighter();
-                //selectorHighlighter->setCullingActive(false); // disable the culling for the selector, otherwise the selector is culled away on the edge.
-                //root->addChild(selectorHighlighter);
-                //addEventHandler( selectorHandler.get() );// should be in main.cpp
+                _distortionSet->setDistortionCamera( camera );
+
+                // Ensure selector is visible:
+                geode->getOrCreateStateSet()->setMode( GL_LIGHTING, osg::StateAttribute::OFF );
+                geode->getOrCreateStateSet()->setAttributeAndModes( new osg::PolygonOffset(1.0f, 1.0f) );
                 
-                //// Avoid that the highlighter is culled away
-                //osg::CullSettings::CullingMode mode = camera->getCullingMode();
-                //camera->setCullingMode( mode & (~osg::CullSettings::SMALL_FEATURE_CULLING) );
-
         camera->setName("Dist Cam");
 

experimental/distortionNG/main.cpp

@@ -47 +47 @@
         osg::Image* intMap = osgDB::readImageFile("intensitymap.png");
         if (!intMap)
-        {
-                osg::notify(osg::WARN) << "Couldn't find intensity map, quiting." << std::endl;
-                return -1;
-        } 
+                osg::notify(osg::WARN) << "Couldn't find intensity map, skip intensityMap setup." << std::endl;
+
         // Create DistortionSet
         osg::ref_ptr<osgViewer::DistortionSet> _distortionSet = new osgViewer::DistortionSet();
@@ -62 +60 @@
 
         // set up the camera manipulators.
+    osg::ref_ptr<osgGA::KeySwitchMatrixManipulator> keyswitchManipulator = new osgGA::KeySwitchMatrixManipulator;
+
+    keyswitchManipulator->addMatrixManipulator( '1', "Trackball", new osgGA::TrackballManipulator() );
+    keyswitchManipulator->addMatrixManipulator( '2', "Flight", new osgGA::FlightManipulator() );
+    keyswitchManipulator->addMatrixManipulator( '3', "Drive", new osgGA::DriveManipulator() );
+    keyswitchManipulator->addMatrixManipulator( '4', "Terrain", new osgGA::TerrainManipulator() );
+
+    std::string pathfile;
+    char keyForAnimationPath = '5';
+    while (arguments.read("-p",pathfile))
     {
-        osg::ref_ptr<osgGA::KeySwitchMatrixManipulator> keyswitchManipulator = new osgGA::KeySwitchMatrixManipulator;
-
-        keyswitchManipulator->addMatrixManipulator( '1', "Trackball", new osgGA::TrackballManipulator() );
-        keyswitchManipulator->addMatrixManipulator( '2', "Flight", new osgGA::FlightManipulator() );
-        keyswitchManipulator->addMatrixManipulator( '3', "Drive", new osgGA::DriveManipulator() );
-        keyswitchManipulator->addMatrixManipulator( '4', "Terrain", new osgGA::TerrainManipulator() );
-
-        std::string pathfile;
-        char keyForAnimationPath = '5';
-        while (arguments.read("-p",pathfile))
+        osgGA::AnimationPathManipulator* apm = new osgGA::AnimationPathManipulator(pathfile);
+        if (apm || !apm->valid()) 
         {
-            osgGA::AnimationPathManipulator* apm = new osgGA::AnimationPathManipulator(pathfile);
-            if (apm || !apm->valid()) 
-            {
-                unsigned int num = keyswitchManipulator->getNumMatrixManipulators();
-                keyswitchManipulator->addMatrixManipulator( keyForAnimationPath, "Path", apm );
-                keyswitchManipulator->selectMatrixManipulator(num);
-                ++keyForAnimationPath;
-            }
+            unsigned int num = keyswitchManipulator->getNumMatrixManipulators();
+            keyswitchManipulator->addMatrixManipulator( keyForAnimationPath, "Path", apm );
+            keyswitchManipulator->selectMatrixManipulator(num);
+            ++keyForAnimationPath;
         }
-
-        viewer.setCameraManipulator( keyswitchManipulator.get() );
     }
 
+        // Add keyswitch manipulator for multiple scene controls-
+    viewer.setCameraManipulator( keyswitchManipulator.get() );
+
         // Add the distortion manipulator
-        osgViewer::DistortionManipulator* distManip = new osgViewer::DistortionManipulator();
-        distManip->setDistortionSet(_distortionSet);
-        viewer.addEventHandler(distManip);
+        viewer.addEventHandler(new osgViewer::DistortionManipulator(_distortionSet));
 
     // add the state manipulator