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added new help files for geometry functions

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astroidex 2013-09-15 16:18:02 +02:00
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<h3>convexHull function</h3>
Returns the convex hull of a geometry. It represents the minimum convex geometry that encloses all geometries within the set.
<h4>Syntax</h4>
<pre>convexHull( $geometry , $geometry)</pre>
<h4>Arguments</h4>
geometry &rarr; geometry
geometry &rarr; geometry
<h4>Example</h4>
<pre> &rarr; returns </pre>