A method and system for combining nodes in a file used for loading a node graph. The method includes defining a first node in the file as a mega-node of the file. The XML file includes a plurality of nodes arranged in parent/child relationships. The method proceeds by identifying a base node type for...http://www.google.com.hk/patents/US7428542?utm_source=gb-gplus-share專利 US7428542 - Method and system for combining nodes into a mega-node
