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SAP Sybase SQL Anywhere 16.0 » SQL Anywhere Server - Spatial Data Support » Spatial data » Advanced spatial topics


How interpolation impacts spatial calculations

Interpolation is the process of using known points in a geometry to approximate unknown points. Several spatial methods and predicates use interpolation when the calculations involve circular arcs. Interpolation turns a circular arc into a sequence of straight lines. For example, a circularstring representing a quarter arc might be interpolated as a linestring with 11 control points.

 Interpolation example
 See also