public static void main(string[] args)
{
// read a point from a WKT string (using the default point factory)
var g1 = new WKTReader().Read("LINESTRING (0 0, 10 10, 20 20)");
Console.WriteLine("Geometry 1: " + g1);
// create a point by specifying the coordinates directly
var coordinates = new [] { new Coordinate(0, 0),
new Coordinate(10, 10), new Coordinate(20, 20) };
// use the default factory, which gives full double-precision
Geometry g2 = new GeometryFactory().CreateLineString(coordinates);
Console.WriteLine("Geometry 2: " + g2);
// compute the intersection of the two geometries
var g3 = g1.Intersection(g2);
Console.WriteLine("G1 intersection G2: " + g3);
// create a point
var point = new GeometryFactory().CreatePoint(new Coordinate(1, 1));
Console.WriteLine("Point Geometry: " + point);
// compute whether point is on g1
Console.WriteLine("Point within g1: " + g1.Contains(point));
}