pgsplit

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Revision as of 09:33, 20 April 2011 by 193.171.195.48 (talk) (Created page with '{{DISPLAYTITLE:{{SUBPAGENAME}}}} Use a line to split a polygon into two parts. ;Usage: :<code>pgsplit(<var>X</var>, <var>IX</var>, <var>PX1<sub>scalar</sub></var>, <var>PY1<sub>s…')
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Use a line to split a polygon into two parts.

Usage
pgsplit(X, IX, PX1scalar, PY1scalar), PX2scalar, PY2scalar)
X
a closed point-list or a polygon-stream defining one or more polygons.
IX
The index of the polygon of X to be splitted; 0 <= IX < pgget(X)
PX1, PY1, PX2, PY2
The points <PX1,PY1> and <PX2,PY2> defining the line to split the polygon. There must be exactly two intersections of the line with the polygon!
Result
The result r is a polygon-stream containing the two split parts of the polygon.
See also
pginit, pgget, pgitest, pgiline, pgxgrid, pgtrans, pghull


<function list>

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