Changeset 340 for experimental/distortionNG

Timestamp:

Mar 24, 2012, 10:00:11 AM (13 years ago)

Author:

Torben Dannhauer

Message:

The intersection works and the selector highlighter is set and displayed correctly.
Next steps:

• use a variable to control whether distortion setup is active or not. temporarily track the Ctrl Key to enably(push or disable(release) the edit mode.
• Hide the highlighter and disable the intersection/drag tracking on diabled edit mode.
• catch up dragging values and translate them in the correct coordinate frame.
• apply dragging values:
• a) either on the texture coordinate while the grid is constant,
• b) or apply them on the grid node coordinates while the texture coordinates are constant (check/compare solutions!)

Location:

experimental/distortionNG

Files:

• distortionNG.cpp (modified) (3 diffs)
• extViewer.cpp (modified) (3 diffs)
• main.cpp (modified) (1 diff)

experimental/distortionNG/distortionNG.cpp

@@ -52 +52 @@
                 if ( viewer )
                 {
-                        osg::ref_ptr<osgUtil::LineSegmentIntersector> intersector = new osgUtil::LineSegmentIntersector(osgUtil::Intersector::WINDOW, ea.getX(), ea.getY());
+                        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() );
                         //viewer->getCamera()->accept( iv );
@@ -67 +69 @@
         if ( ea.getEventType() == osgGA::GUIEventAdapter::DRAG  )
         {
-        osg::notify(osg::ALWAYS)<<std::endl<<"ea.getGraphicsContext()="<<ea.getGraphicsContext()<<std::endl;
+                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;
@@ -112 +114 @@
                                 closestVertexIndex = result.indexList[i];
                         }
-                //      OSG_NOTIFY(osg::ALWAYS)<<"maxRatio="<<maxRatio<<std::endl;
-                //      OSG_NOTIFY(osg::ALWAYS)<<"closestVertexIndex="<<closestVertexIndex<<std::endl;
+                        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;

experimental/distortionNG/extViewer.cpp

@@ -148 +148 @@
                 geom->setTexCoordArray(1,texcoords1);
 
-        //// Quads grid
+        // Quads grid
+        for ( unsigned int row=0; row<rows-1; row++ )   // each strip consists of two affected vertex rows, so we need only row-1 strips.
+        {
+                osg::ref_ptr<osg::DrawElementsUInt> de = new osg::DrawElementsUInt(GL_QUAD_STRIP, columns*2);   // columns*2 = number of involved vertices for this strip.
+                for ( unsigned int col=0; col<columns; col++ )
+                {
+                        (*de)[col*2 + 0] = row*columns + col;
+                        (*de)[col*2 + 1] = (row+1)*columns + col;
+                }
+                geom->addPrimitiveSet( de.get() );
+        }
+
+        //// Triangle grid
         //for ( unsigned int row=0; row<rows-1; row++ ) // each strip consists of two affected vertex rows, so we need only row-1 strips.
         //{
-        //      osg::ref_ptr<osg::DrawElementsUInt> de = new osg::DrawElementsUInt(GL_QUAD_STRIP, columns*2);   // columns*2 = number of involved vertices for this strip.
+        //      osg::ref_ptr<osg::DrawElementsUInt> de = new osg::DrawElementsUInt(osg::PrimitiveSet::TRIANGLE_STRIP, columns * 2 );    
         //      for ( unsigned int col=0; col<columns; col++ )
         //      {
@@ -159 +171 @@
         //      geom->addPrimitiveSet( de.get() );
         //}
-
-        // Triangle grid
-        for ( unsigned int row=0; row<rows-1; row++ )   // each strip consists of two affected vertex rows, so we need only row-1 strips.
-        {
-                osg::ref_ptr<osg::DrawElementsUInt> de = new osg::DrawElementsUInt(osg::PrimitiveSet::TRIANGLE_STRIP, columns * 2 );    
-                for ( unsigned int col=0; col<columns; col++ )
-                {
-                        (*de)[col*2 + 0] = row*columns + col;
-                        (*de)[col*2 + 1] = (row+1)*columns + col;
-                }
-                geom->addPrimitiveSet( de.get() );
-        }
 
         return geom.release();
@@ -340 +340 @@
                 geode->getOrCreateStateSet()->setMode( GL_LIGHTING, osg::StateAttribute::OFF );
                 geode->getOrCreateStateSet()->setAttributeAndModes( new osg::PolygonOffset(1.0f, 1.0f) );
-                osg::ref_ptr<distortionHandler> selector = new distortionHandler( camera, distortionMesh );
+                osg::ref_ptr<distortionHandler> selectorHandler = new distortionHandler( camera, distortionMesh );
                 osg::ref_ptr<osg::Group> root = new osg::Group;
                 root->addChild(geode);
-                root->addChild(selector->createVertexHighlighter());
-                addEventHandler( selector.get() );
+                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() );
                 camera->addChild(root);
                 // Avoid that the highlighter is culled away

experimental/distortionNG/main.cpp

@@ -140 +140 @@
 /*
 ToDo: 
+
+The intersection works and the selector highlighter is set and displayed correctly.
+Next steps:
+ * use a variable to control whether distortion setup is active or not. temporarily track the Ctrl Key to enably(push or disable(release) the edit mode.
+ * Hide the highlighter and disable the intersection/drag tracking on diabled edit mode.
+ * catch up dragging values and translate them in the correct coordinate frame.
+ * apply dragging values:
+ *      a) either on the texture coordinate while the grid is constant,
+ *  b) or apply them on the grid node coordinates while the texture coordinates are constant (check/compare solutions!)
  * 
- * distortionHandler::handle startet Intersections. Da jedoch das distortion Mesh keine Geometry der Scene mehr ist, gibt es keine Intersection
- *  -> es muss die intersektion umgestellt werden, um das Distortion Mesh zu intersecten.
- * Es muss geprüft werdne, ob bei dne Mausverschiebungen die texturecoordinaten verschoben, oder das Distortion Mesh verschoben wird.
-
-
-
-
+ 
 
 */