public static void TestDifferenceAndSymmetricDifference()
{
com.epl.geometry.OperatorFactoryLocal engine = com.epl.geometry.OperatorFactoryLocal.GetInstance();
com.epl.geometry.OperatorDifference differenceOp = (com.epl.geometry.OperatorDifference)engine.GetOperator(com.epl.geometry.Operator.Type.Difference);
com.epl.geometry.SpatialReference spatialRef = com.epl.geometry.SpatialReference.Create(102113);
com.epl.geometry.Polygon polygon1 = MakePolygon1();
com.epl.geometry.Polygon polygon2 = MakePolygon2();
com.epl.geometry.Polyline polyline1 = MakePolyline1();
com.epl.geometry.MultiPoint multipoint1 = MakeMultiPoint1();
com.epl.geometry.MultiPoint multipoint2 = MakeMultiPoint2();
com.epl.geometry.MultiPoint multipoint3 = MakeMultiPoint3();
com.epl.geometry.Point point1 = MakePoint1();
com.epl.geometry.Point point2 = MakePoint2();
com.epl.geometry.Envelope envelope1 = MakeEnvelope1();
com.epl.geometry.Envelope envelope2 = MakeEnvelope2();
com.epl.geometry.Envelope envelope3 = MakeEnvelope3();
com.epl.geometry.Polygon outputPolygon = (com.epl.geometry.Polygon)differenceOp.Execute(polygon1, polygon2, spatialRef, null);
double area = outputPolygon.CalculateArea2D();
NUnit.Framework.Assert.IsTrue(System.Math.Abs(area - 75) <= 0.001);
{
com.epl.geometry.Point point_1 = new com.epl.geometry.Point(-130, 10);
com.epl.geometry.Point point_2 = new com.epl.geometry.Point(-130, 10);
com.epl.geometry.Geometry baseGeom = new com.epl.geometry.Point(point_1.GetX(), point_1.GetY());
com.epl.geometry.Geometry comparisonGeom = new com.epl.geometry.Point(point_2.GetX(), point2.GetY());
com.epl.geometry.SpatialReference sr = com.epl.geometry.SpatialReference.Create(4326);
com.epl.geometry.Geometry geom = differenceOp.Execute(baseGeom, comparisonGeom, sr, null);
}
com.epl.geometry.OperatorSymmetricDifference symDifferenceOp = (com.epl.geometry.OperatorSymmetricDifference)engine.GetOperator(com.epl.geometry.Operator.Type.SymmetricDifference);
outputPolygon = (com.epl.geometry.Polygon)symDifferenceOp.Execute(polygon1, polygon2, spatialRef, null);
area = outputPolygon.CalculateArea2D();
NUnit.Framework.Assert.IsTrue(System.Math.Abs(area - 150) <= 0.001);
com.epl.geometry.Polyline outputPolyline = (com.epl.geometry.Polyline)differenceOp.Execute(polyline1, polygon1, spatialRef, null);
double length = outputPolyline.CalculateLength2D();
NUnit.Framework.Assert.IsTrue(System.Math.Abs(length * length - 50) < 0.001);
com.epl.geometry.MultiPoint outputMultiPoint = (com.epl.geometry.MultiPoint)differenceOp.Execute(multipoint1, polygon1, spatialRef, null);
int pointCount = outputMultiPoint.GetPointCount();
NUnit.Framework.Assert.IsTrue(pointCount == 1);
outputMultiPoint = (com.epl.geometry.MultiPoint)(symDifferenceOp.Execute(multipoint1, point1, spatialRef, null));
pointCount = outputMultiPoint.GetPointCount();
NUnit.Framework.Assert.IsTrue(pointCount == 2);
outputMultiPoint = (com.epl.geometry.MultiPoint)(symDifferenceOp.Execute(multipoint1, point2, spatialRef, null));
pointCount = outputMultiPoint.GetPointCount();
NUnit.Framework.Assert.IsTrue(pointCount == 4);
outputMultiPoint = (com.epl.geometry.MultiPoint)(differenceOp.Execute(multipoint1, point1, spatialRef, null));
pointCount = outputMultiPoint.GetPointCount();
NUnit.Framework.Assert.IsTrue(pointCount == 2);
outputMultiPoint = (com.epl.geometry.MultiPoint)(differenceOp.Execute(multipoint1, point2, spatialRef, null));
pointCount = outputMultiPoint.GetPointCount();
NUnit.Framework.Assert.IsTrue(pointCount == 3);
outputPolygon = (com.epl.geometry.Polygon)(differenceOp.Execute(polygon1, envelope1, spatialRef, null));
area = outputPolygon.CalculateArea2D();
NUnit.Framework.Assert.IsTrue(System.Math.Abs(area - 75) <= 0.001);
outputPolygon = (com.epl.geometry.Polygon)(differenceOp.Execute(polygon2, envelope2, spatialRef, null));
area = outputPolygon.CalculateArea2D();
NUnit.Framework.Assert.IsTrue(System.Math.Abs(area - 75) <= 0.001);
outputPolyline = (com.epl.geometry.Polyline)(differenceOp.Execute(polyline1, envelope2, spatialRef, null));
length = outputPolyline.CalculateLength2D();
NUnit.Framework.Assert.IsTrue(System.Math.Abs(length * length - 50) <= 0.001);
outputMultiPoint = (com.epl.geometry.MultiPoint)(differenceOp.Execute(multipoint1, envelope2, spatialRef, null));
pointCount = outputMultiPoint.GetPointCount();
NUnit.Framework.Assert.IsTrue(pointCount == 1);
outputMultiPoint = (com.epl.geometry.MultiPoint)(differenceOp.Execute(multipoint2, envelope2, spatialRef, null));
pointCount = outputMultiPoint.GetPointCount();
NUnit.Framework.Assert.IsTrue(pointCount == 6);
outputMultiPoint = (com.epl.geometry.MultiPoint)(differenceOp.Execute(multipoint3, envelope2, spatialRef, null));
pointCount = outputMultiPoint.GetPointCount();
NUnit.Framework.Assert.IsTrue(pointCount == 0);
com.epl.geometry.Point outputPoint = (com.epl.geometry.Point)(differenceOp.Execute(point1, envelope2, spatialRef, null));
NUnit.Framework.Assert.IsTrue(!outputPoint.IsEmpty());
outputPoint = (com.epl.geometry.Point)(differenceOp.Execute(point2, envelope2, spatialRef, null));
NUnit.Framework.Assert.IsTrue(outputPoint.IsEmpty());
outputPolygon = (com.epl.geometry.Polygon)(differenceOp.Execute(envelope3, envelope2, spatialRef, null));
NUnit.Framework.Assert.IsTrue(outputPolygon != null && outputPolygon.IsEmpty());
outputPolygon = (com.epl.geometry.Polygon)(symDifferenceOp.Execute(envelope3, envelope3, spatialRef, null));
NUnit.Framework.Assert.IsTrue(outputPolygon != null && outputPolygon.IsEmpty());
outputPoint = (com.epl.geometry.Point)(differenceOp.Execute(point1, polygon1, spatialRef, null));
NUnit.Framework.Assert.IsTrue(outputPoint != null);
}
/// <summary>Creates the symmetric difference of two geometries.</summary>
/// <remarks>
/// Creates the symmetric difference of two geometries.
/// See OperatorSymmetricDifference.
/// </remarks>
/// <param name="leftGeometry">is one of the Geometry instances in the XOR operation.</param>
/// <param name="rightGeometry">is one of the Geometry instances in the XOR operation.</param>
/// <param name="spatialReference">The spatial reference of the geometries.</param>
/// <returns>Returns the result of the symmetric difference.</returns>
public static com.epl.geometry.Geometry SymmetricDifference(com.epl.geometry.Geometry leftGeometry, com.epl.geometry.Geometry rightGeometry, com.epl.geometry.SpatialReference spatialReference)
{
com.epl.geometry.OperatorSymmetricDifference op = (com.epl.geometry.OperatorSymmetricDifference)factory.GetOperator(com.epl.geometry.Operator.Type.SymmetricDifference);
com.epl.geometry.Geometry result = op.Execute(leftGeometry, rightGeometry, spatialReference, null);
return(result);
}
public static void TestPointTypes()
{
com.epl.geometry.OperatorFactoryLocal engine = com.epl.geometry.OperatorFactoryLocal.GetInstance();
com.epl.geometry.OperatorDifference difference = (com.epl.geometry.OperatorDifference)engine.GetOperator(com.epl.geometry.Operator.Type.Difference);
com.epl.geometry.OperatorSymmetricDifference sym_difference = (com.epl.geometry.OperatorSymmetricDifference)engine.GetOperator(com.epl.geometry.Operator.Type.SymmetricDifference);
{
// point/point
com.epl.geometry.Point point_1 = new com.epl.geometry.Point();
com.epl.geometry.Point point_2 = new com.epl.geometry.Point();
point_1.SetXY(0, 0);
point_2.SetXY(0.000000009, 0.000000009);
com.epl.geometry.Point differenced = (com.epl.geometry.Point)(difference.Execute(point_1, point_2, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(differenced.IsEmpty());
com.epl.geometry.MultiPoint sym_differenced = (com.epl.geometry.MultiPoint)(sym_difference.Execute(point_1, point_2, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(sym_differenced.IsEmpty());
}
{
// point/point
com.epl.geometry.Point point_1 = new com.epl.geometry.Point();
com.epl.geometry.Point point_2 = new com.epl.geometry.Point();
point_1.SetXY(0, 0);
point_2.SetXY(0.000000009, 0.0);
com.epl.geometry.Point differenced = (com.epl.geometry.Point)(difference.Execute(point_1, point_2, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(differenced.IsEmpty());
com.epl.geometry.MultiPoint sym_differenced = (com.epl.geometry.MultiPoint)(sym_difference.Execute(point_1, point_2, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(sym_differenced.IsEmpty());
}
{
// point/point
com.epl.geometry.Point point_1 = new com.epl.geometry.Point();
com.epl.geometry.Point point_2 = new com.epl.geometry.Point();
point_1.SetXY(0, 0);
point_2.SetXY(0.00000002, 0.00000002);
com.epl.geometry.Point differenced_1 = (com.epl.geometry.Point)(difference.Execute(point_1, point_2, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(!differenced_1.IsEmpty());
com.epl.geometry.Point differenced_2 = (com.epl.geometry.Point)(difference.Execute(point_2, point_1, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(!differenced_2.IsEmpty());
com.epl.geometry.MultiPoint sym_differenced = (com.epl.geometry.MultiPoint)(sym_difference.Execute(point_1, point_2, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(!sym_differenced.IsEmpty());
NUnit.Framework.Assert.IsTrue(sym_differenced.GetXY(0).x == 0 && sym_differenced.GetXY(0).y == 0);
NUnit.Framework.Assert.IsTrue(sym_differenced.GetXY(1).x == 0.00000002 && sym_differenced.GetXY(1).y == 0.00000002);
}
{
// multi_point/point
com.epl.geometry.MultiPoint multi_point_1 = new com.epl.geometry.MultiPoint();
com.epl.geometry.Point point_2 = new com.epl.geometry.Point();
multi_point_1.Add(0, 0);
multi_point_1.Add(1, 1);
point_2.SetXY(0.000000009, 0.000000009);
com.epl.geometry.MultiPoint differenced_1 = (com.epl.geometry.MultiPoint)(difference.Execute(multi_point_1, point_2, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(!differenced_1.IsEmpty());
NUnit.Framework.Assert.IsTrue(differenced_1.GetPointCount() == 1);
NUnit.Framework.Assert.IsTrue(differenced_1.GetXY(0).x == 1 && differenced_1.GetXY(0).y == 1);
com.epl.geometry.Point differenced_2 = (com.epl.geometry.Point)(difference.Execute(point_2, multi_point_1, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(differenced_2.IsEmpty());
}
{
// multi_point/point
com.epl.geometry.MultiPoint multi_point_1 = new com.epl.geometry.MultiPoint();
com.epl.geometry.Point point_2 = new com.epl.geometry.Point();
multi_point_1.Add(0, 0);
multi_point_1.Add(1, 1);
point_2.SetXY(0.000000009, 0.0);
com.epl.geometry.MultiPoint differenced_1 = (com.epl.geometry.MultiPoint)(difference.Execute(multi_point_1, point_2, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(!differenced_1.IsEmpty());
NUnit.Framework.Assert.IsTrue(differenced_1.GetXY(0).x == 1.0 && differenced_1.GetXY(0).y == 1.0);
com.epl.geometry.Point differenced_2 = (com.epl.geometry.Point)(difference.Execute(point_2, multi_point_1, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(differenced_2.IsEmpty());
com.epl.geometry.MultiPoint sym_differenced = (com.epl.geometry.MultiPoint)(sym_difference.Execute(multi_point_1, point_2, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(!sym_differenced.IsEmpty());
NUnit.Framework.Assert.IsTrue(sym_differenced.GetPointCount() == 1);
NUnit.Framework.Assert.IsTrue(sym_differenced.GetXY(0).x == 1 && sym_differenced.GetXY(0).y == 1);
}
{
// multi_point/point
com.epl.geometry.MultiPoint multi_point_1 = new com.epl.geometry.MultiPoint();
com.epl.geometry.Point point_2 = new com.epl.geometry.Point();
multi_point_1.Add(0, 0);
multi_point_1.Add(0, 0);
point_2.SetXY(0.000000009, 0.0);
com.epl.geometry.MultiPoint differenced_1 = (com.epl.geometry.MultiPoint)(difference.Execute(multi_point_1, point_2, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(differenced_1.IsEmpty());
com.epl.geometry.MultiPoint sym_differenced = (com.epl.geometry.MultiPoint)(sym_difference.Execute(multi_point_1, point_2, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(sym_differenced.IsEmpty());
}
{
// multi_point/polygon
com.epl.geometry.MultiPoint multi_point_1 = new com.epl.geometry.MultiPoint();
com.epl.geometry.Polygon polygon_2 = new com.epl.geometry.Polygon();
multi_point_1.Add(0, 0);
multi_point_1.Add(0, 0);
multi_point_1.Add(2, 2);
polygon_2.StartPath(-1, -1);
polygon_2.LineTo(-1, 1);
polygon_2.LineTo(1, 1);
polygon_2.LineTo(1, -1);
com.epl.geometry.MultiPoint differenced_1 = (com.epl.geometry.MultiPoint)(difference.Execute(multi_point_1, polygon_2, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(!differenced_1.IsEmpty());
NUnit.Framework.Assert.IsTrue(differenced_1.GetPointCount() == 1);
NUnit.Framework.Assert.IsTrue(differenced_1.GetXY(0).x == 2 && differenced_1.GetXY(0).y == 2);
}
{
// multi_point/polygon
com.epl.geometry.MultiPoint multi_point_1 = new com.epl.geometry.MultiPoint();
com.epl.geometry.Polygon polygon_2 = new com.epl.geometry.Polygon();
multi_point_1.Add(0, 0);
multi_point_1.Add(0, 0);
multi_point_1.Add(1, 1);
polygon_2.StartPath(-1, -1);
polygon_2.LineTo(-1, 1);
polygon_2.LineTo(1, 1);
polygon_2.LineTo(1, -1);
com.epl.geometry.MultiPoint differenced_1 = (com.epl.geometry.MultiPoint)(difference.Execute(multi_point_1, polygon_2, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(differenced_1.IsEmpty());
}
{
// multi_point/envelope
com.epl.geometry.MultiPoint multi_point_1 = new com.epl.geometry.MultiPoint();
com.epl.geometry.Envelope envelope_2 = new com.epl.geometry.Envelope();
multi_point_1.Add(-2, 0);
multi_point_1.Add(0, 2);
multi_point_1.Add(2, 0);
multi_point_1.Add(0, -2);
envelope_2.SetCoords(-1, -1, 1, 1);
com.epl.geometry.MultiPoint differenced_1 = (com.epl.geometry.MultiPoint)(difference.Execute(multi_point_1, envelope_2, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(!differenced_1.IsEmpty() && differenced_1 == multi_point_1);
}
{
// multi_point/polygon
com.epl.geometry.MultiPoint multi_point_1 = new com.epl.geometry.MultiPoint();
com.epl.geometry.Polygon polygon_2 = new com.epl.geometry.Polygon();
multi_point_1.Add(2, 2);
multi_point_1.Add(2, 2);
multi_point_1.Add(-2, -2);
polygon_2.StartPath(-1, -1);
polygon_2.LineTo(-1, 1);
polygon_2.LineTo(1, 1);
polygon_2.LineTo(1, -1);
com.epl.geometry.MultiPoint differenced_1 = (com.epl.geometry.MultiPoint)(difference.Execute(multi_point_1, polygon_2, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(!differenced_1.IsEmpty() && differenced_1 == multi_point_1);
}
{
// point/polygon
com.epl.geometry.Point point_1 = new com.epl.geometry.Point();
com.epl.geometry.Polygon polygon_2 = new com.epl.geometry.Polygon();
point_1.SetXY(0, 0);
polygon_2.StartPath(-1, -1);
polygon_2.LineTo(-1, 1);
polygon_2.LineTo(1, 1);
polygon_2.LineTo(1, -1);
com.epl.geometry.Point differenced_1 = (com.epl.geometry.Point)(difference.Execute(point_1, polygon_2, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(differenced_1.IsEmpty());
polygon_2.SetEmpty();
polygon_2.StartPath(1, 1);
polygon_2.LineTo(1, 2);
polygon_2.LineTo(2, 2);
polygon_2.LineTo(2, 1);
differenced_1 = (com.epl.geometry.Point)(difference.Execute(point_1, polygon_2, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(!differenced_1.IsEmpty());
NUnit.Framework.Assert.IsTrue(differenced_1 == point_1);
}
{
// point/polygon
com.epl.geometry.Point point_1 = new com.epl.geometry.Point();
com.epl.geometry.Polygon polygon_2 = new com.epl.geometry.Polygon();
point_1.SetXY(0, 0);
polygon_2.StartPath(1, 0);
polygon_2.LineTo(0, 1);
polygon_2.LineTo(1, 1);
com.epl.geometry.Point differenced_1 = (com.epl.geometry.Point)(difference.Execute(point_1, polygon_2, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(!differenced_1.IsEmpty());
NUnit.Framework.Assert.IsTrue(differenced_1 == point_1);
point_1.SetEmpty();
point_1.SetXY(0.5, 0.5);
polygon_2.SetEmpty();
polygon_2.StartPath(1, 0);
polygon_2.LineTo(0, 1);
polygon_2.LineTo(1, 1);
differenced_1 = (com.epl.geometry.Point)(difference.Execute(point_1, polygon_2, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(differenced_1.IsEmpty());
}
{
// point/envelope
com.epl.geometry.Point point_1 = new com.epl.geometry.Point();
com.epl.geometry.Envelope envelope_2 = new com.epl.geometry.Envelope();
point_1.SetXY(0, 0);
envelope_2.SetCoords(-1, -1, 1, 1);
com.epl.geometry.Point differenced_1 = (com.epl.geometry.Point)(difference.Execute(point_1, envelope_2, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(differenced_1.IsEmpty());
envelope_2.SetEmpty();
envelope_2.SetCoords(1, 1, 2, 2);
differenced_1 = (com.epl.geometry.Point)(difference.Execute(point_1, envelope_2, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(!differenced_1.IsEmpty());
NUnit.Framework.Assert.IsTrue(differenced_1 == point_1);
}
{
// point/polyline
com.epl.geometry.Point point_1 = new com.epl.geometry.Point();
com.epl.geometry.Polyline polyline_2 = new com.epl.geometry.Polyline();
point_1.SetXY(0, 0);
polyline_2.StartPath(-1, 0);
polyline_2.LineTo(1, 0);
com.epl.geometry.Point differenced_1 = (com.epl.geometry.Point)(difference.Execute(point_1, polyline_2, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(differenced_1.IsEmpty());
polyline_2.SetEmpty();
polyline_2.StartPath(1, 0);
polyline_2.LineTo(2, 0);
differenced_1 = (com.epl.geometry.Point)(difference.Execute(point_1, polyline_2, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(!differenced_1.IsEmpty());
NUnit.Framework.Assert.IsTrue(differenced_1 == point_1);
polyline_2.SetEmpty();
polyline_2.StartPath(-1, -1);
polyline_2.LineTo(-1, 1);
polyline_2.LineTo(1, 1);
polyline_2.LineTo(1, -1);
differenced_1 = (com.epl.geometry.Point)(difference.Execute(point_1, polyline_2, com.epl.geometry.SpatialReference.Create(4326), null));
NUnit.Framework.Assert.IsTrue(!differenced_1.IsEmpty());
NUnit.Framework.Assert.IsTrue(differenced_1 == point_1);
}
}
