The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 27, 2016

Filed:

May. 12, 2011
Applicant:

Mathieu St-pierre, Ste-Brigitte de Laval, CA;

Inventor:

Mathieu St-Pierre, Ste-Brigitte de Laval, CA;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 17/00 (2006.01); G06F 17/30 (2006.01); G06F 3/0481 (2013.01); G06T 15/00 (2011.01); G09G 5/391 (2006.01); G06T 9/20 (2006.01);
U.S. Cl.
CPC ...
G06F 17/30327 (2013.01); G06F 3/04815 (2013.01); G06T 9/20 (2013.01); G06T 15/00 (2013.01); G09G 5/391 (2013.01);
Abstract

In one embodiment, data of a data set that describes the topography of a three-dimensional surface (e.g., a DTM) is obtained at a resolution appropriate for visualization on a display screen. The data is organized into a number of resolutions by spatial indexing. A lowest resolution cluster of data is selected. For any visible data in the selected cluster of data for a type of visualization to be shown on the display screen, a point density in a coordinate system of the display screen resulting from data is compared to a configured threshold. If the point density in the display screen's coordinate system is below the configured threshold, visible data in the selected cluster of data is returned for display. If the point density in the display screen's coordinate system is above the configured threshold, one or more next-higher resolution clusters of data are selected, and the technique repeated.


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