Douglas-Peucker polyline simplification algorithm 1.0

Version: 1.0

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Description

This is an implementation of an algorithm with which polylines consisting of many points can be reduced to a simplified form. This can be useful in situations where your graphical application must draw many polylines and time becomes an issue, like cartographic applications.

This well-known algorithm is called the classical Douglas-Peucker algorithm [Douglas & Peucker, 1973].

Two versions of the algorithm are supplied; one version for polylines consisting of floating point 3D vertices, and one version for polylines consisting of integer 2D vertices. The latter is ideal for Windows GDI style "TPoint" implementations.

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