G - Physics – 09 – G
Patent
G - Physics
09
G
G09G 5/37 (2006.01) H04W 88/02 (2009.01) G06F 15/02 (2006.01) G09G 5/34 (2006.01)
Patent
CA 2732395
A method for rendering static graphics in a mobile device in applications such as map applications. Panning increments are received for panning a previously rendered frame to a panned frame. A rendering region is defined based on the panning increments and the rendering region is expanded to provide an expanded region. At least one of a candidate polygon, candidate line segment, and polyline is clipped to the expanded region to obtain one or more clipped portions of the at least one of the candidate polygon, candidate line segment and candidate polyline contained within the expanded region. The one or more clipped portions of the candidate polygon, candidate line segment and candidate polyline, are rendered and portion of the previously rendered frame is copied to provide the panned frame.
L'invention concerne un procédé de rendu de graphiques statiques sur un dispositif mobile dans des applications telles que des applications de cartographie. On reçoit des incréments de translation panoramique afin d'assurer la translation panoramique d'une trame restituée précédemment de manière à obtenir une trame panoramique. On détermine une zone de rendu sur la base des incréments de translation et on agrandit la zone de rendu pour obtenir une zone agrandie. Un polygone candidat et/ou un segment de droite candidat et/ou une polyligne candidate est/sont clippé(e)(s) sur la zone agrandie pour obtenir une ou plusieurs parties clippées dudit ou desdits éléments candidats contenu(s) dans la zone agrandie. Ladite ou lesdites parties clippées dudit ou desdits éléments candidats est/sont rendue(s) et la partie de la trame restituée précédemment est copiée pour obtenir la trame panoramique.
Borden Ladner Gervais Llp
Research In Motion Limited
LandOfFree
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