pgsplit

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

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