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Project Description

polygon is a set of PHP classes that can be used
to perform different types of geometric operations
with arbitary polygons. It provides generic
polygon and vertex classes that support mixing
lines and arc segments between vertices. Polygons
may be self-intersecting, convex, or concave. It
provides means to perform intersection and union
operations with the shapes and to compute shape
clipping.

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Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.

2006-04-17 09:37 Back to release list
1.3

A divide-by-zero error when an attempt is made to
find an intersection between two arcs with the
same center point was fixed. An undefined variable
warning for $last in the boolean() method was
fixed. Protection against a divide-by-zero warning
in the angle() method was added. A bug in the
ints() function was fixed. The perturb() function
was being called with uninitialized parameters.
This caused incorrect clipping in cases where a
vertex on one polygon exactly fell on a line
segment of the other polygon.
Tags: Minor bugfixes

Project Resources

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