Create initial class placeholders for main volume rendering classes

2008-09-21 11:05:03 +00:00
parent ae08a5b261
commit 00f6622ac8
7 changed files with 668 additions and 0 deletions
--- a/src/osgVolume/VolumeTechnique.cpp
+++ b/src/osgVolume/VolumeTechnique.cpp
@@ -0,0 +1,88 @@
+/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2008 Robert Osfield 
+ *
+ * This library is open source and may be redistributed and/or modified under  
+ * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or 
+ * (at your option) any later version.  The full license is in LICENSE file
+ * included with this distribution, and on the openscenegraph.org website.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * OpenSceneGraph Public License for more details.
+*/
+
+#include <osgVolume/VolumeTechnique>
+#include <osgVolume/Brick>
+
+using namespace osgVolume;
+
+VolumeTechnique::VolumeTechnique():
+    _brick(0)
+{
+    setThreadSafeRefUnref(true);
+}
+
+VolumeTechnique::VolumeTechnique(const VolumeTechnique& rhs,const osg::CopyOp& copyop):
+    osg::Object(rhs,copyop),
+    _brick(0)
+{
+}
+
+VolumeTechnique::~VolumeTechnique()
+{
+}
+
+void VolumeTechnique::init()
+{
+    osg::notify(osg::NOTICE)<<className()<<"::initialize(..) not implementated yet"<<std::endl;
+}
+
+void VolumeTechnique::update(osgUtil::UpdateVisitor* uv)
+{
+    osg::notify(osg::NOTICE)<<className()<<"::update(..) not implementated yet"<<std::endl;
+    if (_brick) _brick->osg::Group::traverse(*uv);
+}
+
+void VolumeTechnique::cull(osgUtil::CullVisitor* cv)
+{
+    osg::notify(osg::NOTICE)<<className()<<"::cull(..) not implementated yet"<<std::endl;
+    if (_brick) _brick->osg::Group::traverse(*cv);
+}
+
+void VolumeTechnique::cleanSceneGraph()
+{
+    osg::notify(osg::NOTICE)<<className()<<"::cleanSceneGraph(..) not implementated yet"<<std::endl;
+}
+
+void VolumeTechnique::traverse(osg::NodeVisitor& nv)
+{
+    if (!_brick) return;
+
+    // if app traversal update the frame count.
+    if (nv.getVisitorType()==osg::NodeVisitor::UPDATE_VISITOR)
+    {
+        if (_brick->getDirty()) _brick->init();
+
+        osgUtil::UpdateVisitor* uv = dynamic_cast<osgUtil::UpdateVisitor*>(&nv);
+        if (uv)
+        {
+            update(uv);
+            return;
+        }        
+        
+    }
+    else if (nv.getVisitorType()==osg::NodeVisitor::CULL_VISITOR)
+    {
+        osgUtil::CullVisitor* cv = dynamic_cast<osgUtil::CullVisitor*>(&nv);
+        if (cv)
+        {
+            cull(cv);
+            return;
+        }
+    }
+
+    if (_brick->getDirty()) _brick->init();
+
+    // otherwise fallback to the Group::traverse()
+    _brick->osg::Group::traverse(nv);
+}