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.
Patent No.:
Date of Patent:
Dec. 29, 2015
Filed:
Sep. 11, 2012
Aroon Pahwa, Palo Alto, CA (US);
Christopher Blumenberg, San Francisco, CA (US);
James A. Howard, Mountain View, CA (US);
Jeffrey P. Hultquist, Cupertino, CA (US);
Michael D. Schuster, Woodside, CA (US);
Aroon Pahwa, Palo Alto, CA (US);
Christopher Blumenberg, San Francisco, CA (US);
James A. Howard, Mountain View, CA (US);
Jeffrey P. Hultquist, Cupertino, CA (US);
Michael D. Schuster, Woodside, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Embodiments of a system and method for loading and rendering curved features in a map are described. Embodiments may include a map tool of a mapping or navigation application configured to generate a display for a map that includes one or more curved features (e.g., curved roads or curved polygons). The map tool may be executed in a client/server environment in which a server portion receives digitized map data in the form of polylines, detects a curved feature in the map data by fitting it to a parametric curve, and transmits data representing the parametric curve to a client device for subsequent rendering. The client device may render the curved feature using the received parametric curve data or, dependent on characteristics of the client device, extract data corresponding to points on the parametric curve to generate a triangle mesh for rendering the curved feature at a suitable resolution.