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GeoFenceIsPointInPolygon Method

Determine if the coordinate is inside the polygon.

Namespace:  CoordinateSharp
Assembly:  CoordinateSharp (in CoordinateSharp.dll) Version: 2.9.4.2
Syntax
C#
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public bool IsPointInPolygon(
	Coordinate point
)

Parameters

point
Type: CoordinateSharpCoordinate
Point to test

Return Value

Type: Boolean
bool
Remarks
Points sitting on the edge of a polygon may return true or false.
Examples
The following example shows how to determine if a coordinate is inside of a specified polygon.
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List<GeoFence.Point> points = new List<GeoFence.Point>();

//Points specified manually to create a square in the USA.
//First and last points should be identical if creating a polygon boundary.
points.Add(new GeoFence.Point(31.65, -106.52));
points.Add(new GeoFence.Point(31.65, -84.02));
points.Add(new GeoFence.Point(42.03, -84.02));
points.Add(new GeoFence.Point(42.03, -106.52));
points.Add(new GeoFence.Point(31.65, -106.52));

GeoFence gf = new GeoFence(points);

Coordinate c = new Coordinate(36.67, -101.51);

//Determine if Coordinate is within polygon
Console.WriteLine(gf.IsPointInPolygon(c)); //True (coordinate is within the polygon)
See Also