PRISAD: A Partitioned Rendering Infrastructure for Scalable Accordion Drawing

We present PRISAD, the first generic rendering infrastructure for information visualization applications that use the accordion drawing technique: rubber-sheet navigation with guaranteed visibility for marked areas of interest. Our new rendering algorithms are based on the partitioning of screen-space, which allows us to handle dense dataset regions correctly. The algorithms in previous work led to incorrect visual representations because of overculling, and to inefficiencies due to overdrawing multiple items in the same region. Our pixel-based drawing infrastructure guarantees correctness by eliminating overculling, and improves rendering performance with tight bounds on overdrawing. PRITree and PRISeq are applications built on PRISAD, with the feature sets of TreeJuxtaposer and SequenceJuxtaposer, respectively. We describe our PRITree and PRISeq dataset traversal algorithms, which are used for efficient rendering, culling, and layout of datasets within the PRISAD framework. We al...

• Type: Conference
• Year: 2005
• Where: INFOVIS
• Authors: James Slack, Kristian Hildebrand, Tamara Munzner
• Keywords: Dataset Traversal Algorithms, Dense Dataset Regions, INFOVIS 2005, Visualization, first Generic Rendering