determines if a polygon is a "hole"

Namespace:  EGIS.ShapeFileLib
Assembly:  EGIS.ShapeFileLib (in EGIS.ShapeFileLib.dll)

Syntax

Visual Basic
Public Shared Function IsPolygonHole ( _
	points As IList(Of PointD), _
	numPoints As Integer _
) As Boolean
C#
public static bool IsPolygonHole(
	IList<PointD> points,
	int numPoints
)
Visual C++
public:
static bool IsPolygonHole(
	IList<PointD>^ points, 
	int numPoints
)
JavaScript
EGIS.ShapeFileLib.GeometryAlgorithms.isPolygonHole = function(points, numPoints);

Parameters

points
Type: System.Collections.Generic..::..IList<(Of <(<'PointD>)>)>
numPoints
Type: System..::..Int32

Return Value

Remarks

Vertices of a rings defining holes in polygons are in a counterclockwise direction.

See Also