Technique for generating from point data geometric data that continuously describe a course of a geographic object

DRIVE October 23, 2013
Source
A technique for generating from a point set geometric data that continuously describe a course of a geographic object is presented. The technique may be used in the context of generating data for a navigation device or driver assistend system. A method implementation of this technique comprises determining, from sub-sets of two or more road points, a sequence of primary base elements. For adjacent primary base elements, an interconnecting secondary base element is determined that continuously connects to and at a connection point has the same gradient as each of the interconnected primary base elements. Further, for adjacent primary and secondary base elements, an interconnecting transition curve is determined that continuously connects to and at a connection point has the same gradient and the same curvature as each of the interconnected primary and secondary base elements. Geometric data that continuously describe a course of the geographic object is determined from the primary base elements, the one or more secondary base elements and the one or more transition curves.

Discussion in the ATmosphere

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