Patent ID: 7535475
Filing Date: 2009-05-19
Classification: G06F,G06T

Abstract:
1. A computer-implemented method of using a virtual view tree to facilitate rendering of a document, the method comprising: (a) identifying the document to be rendered; (b) instructing a renderer to display the document; (c) receiving from the renderer a request for a node of a virtual view tree representing the document; (d) creating the requested node if the node does not already exist; (e) caching the requested node in cache memory if the node is not already cached; (f) providing one or more attributes of the requested node to the renderer; and (g) repeating (c)-(f) for all nodes to be rendered; wherein nodes of the virtual view tree are not created until requested by the Renderer; and wherein said (a) through (g) are performed by an application separate from the renderer.