Changeset 252 for experimental/TerrainTest/ReaderWriterTerrainMod.cpp

Timestamp:

Feb 21, 2011, 6:35:43 PM (13 years ago)

Author:

Torben Dannhauer

Message:

Pseudoloader works!

Next step: learn how to perform mdifications in the pseudoloader.

File:

• experimental/TerrainTest/ReaderWriterTerrainMod.cpp (modified) (1 diff)

experimental/TerrainTest/ReaderWriterTerrainMod.cpp

@@ -4 +4 @@
 {
         supportsExtension( "terrainmod", "Terrain modification pseudo loader");
+
+        std::string extensionToAdd = ".terrainmod";
 }
-
-//ReaderWriterTerrainMod::~ReaderWriterTerrainMod()
-//{
-//}
 
 ReaderWriterTerrainMod::ReadResult ReaderWriterTerrainMod::readNode( const std::string& file, const osgDB::ReaderWriter::Options* options) const
 {
+        // Check if its a valid file for this pseudo loader
         std::string ext = osgDB::getLowerCaseFileExtension( file );
         if( !acceptsExtension(ext) )
                 return ReadResult::FILE_NOT_HANDLED;
 
-        std::string fileName = osgDB::findDataFile( file, options );
+        // Strip the pseudo-loader extension
+    std::string realName = osgDB::getNameLessExtension( file );
+
+        // check if stripped file exists
+        std::string fileName = osgDB::findDataFile( realName, options );
         if( fileName.empty() )
                 return ReadResult::FILE_NOT_FOUND;
 
-        // Strip the pseudo-loader extension
-    std::string realName = osgDB::getNameLessExtension( fileName );
-
         // Load real file
-        osg::Node *node = osgDB::readNodeFile( realName, options );
+        osg::Node *node = osgDB::readNodeFile( fileName, options );
     if( !node )
     {
         // propagate the read failure upwards
-        OSG_WARN << "Subfile \"" << realName << "\" could not be loaded" << std::endl;
+        OSG_WARN << "Subfile \"" << fileName << "\" could not be loaded" << std::endl;
         return ReadResult::FILE_NOT_HANDLED;
     }
 
-        // Modify Node
-        OSG_NOTIFY( osg::ALWAYS ) << "Doing modification in pseudoloader!" << std::endl;
-
         // Traverse through loaded graph, check for PagedLOD and modify all filenames of external references
-        ModificationVisitor modVisitor;
+        ModificationVisitor modVisitor(extensionToAdd);
         node->accept( modVisitor );
-
-        std::string extensionToAdd = ".terrainmod";
-
 
         return node;
 }
 
-
 // Add ourself to the Registry to instantiate the reader/writer.
 REGISTER_OSGPLUGIN(terrainmod, ReaderWriterTerrainMod)