public static void TestClipOfCoinciding()
{
com.epl.geometry.OperatorFactoryLocal engine = com.epl.geometry.OperatorFactoryLocal.GetInstance();
com.epl.geometry.OperatorClip clipOp = (com.epl.geometry.OperatorClip)engine.GetOperator(com.epl.geometry.Operator.Type.Clip);
com.epl.geometry.Polygon polygon = new com.epl.geometry.Polygon();
com.epl.geometry.Envelope2D envelopeCR = new com.epl.geometry.Envelope2D();
envelopeCR.xmin = -180;
envelopeCR.xmax = 180;
envelopeCR.ymin = -90;
envelopeCR.ymax = 90;
polygon.AddEnvelope(envelopeCR, false);
com.epl.geometry.SpatialReference gcsWGS84 = com.epl.geometry.SpatialReference.Create(4326);
// CR
com.epl.geometry.Polygon clippedPolygon = (com.epl.geometry.Polygon)clipOp.Execute(polygon, envelopeCR, gcsWGS84, null);
NUnit.Framework.Assert.IsTrue(clippedPolygon.GetPathCount() == 1);
NUnit.Framework.Assert.IsTrue(clippedPolygon.GetPointCount() == 4);
com.epl.geometry.OperatorDensifyByLength densifyOp = (com.epl.geometry.OperatorDensifyByLength)engine.GetOperator(com.epl.geometry.Operator.Type.DensifyByLength);
polygon.SetEmpty();
polygon.AddEnvelope(envelopeCR, false);
polygon = (com.epl.geometry.Polygon)densifyOp.Execute(polygon, 1, null);
int pc = polygon.GetPointCount();
int pathc = polygon.GetPathCount();
NUnit.Framework.Assert.IsTrue(pc == 1080);
NUnit.Framework.Assert.IsTrue(pathc == 1);
clippedPolygon = (com.epl.geometry.Polygon)clipOp.Execute(polygon, envelopeCR, gcsWGS84, null);
int _pathc = clippedPolygon.GetPathCount();
int _pc = clippedPolygon.GetPointCount();
NUnit.Framework.Assert.IsTrue(_pathc == 1);
NUnit.Framework.Assert.IsTrue(_pc == pc);
}
public static void TestGetXCorrectCR185697()
{
com.epl.geometry.OperatorFactoryLocal engine = com.epl.geometry.OperatorFactoryLocal.GetInstance();
com.epl.geometry.OperatorClip clipOp = (com.epl.geometry.OperatorClip)engine.GetOperator(com.epl.geometry.Operator.Type.Clip);
com.epl.geometry.Polyline polylineCR = MakePolylineCR();
com.epl.geometry.SimpleGeometryCursor polylineCursCR = new com.epl.geometry.SimpleGeometryCursor(polylineCR);
com.epl.geometry.SpatialReference gcsWGS84 = com.epl.geometry.SpatialReference.Create(4326);
com.epl.geometry.Envelope2D envelopeCR = new com.epl.geometry.Envelope2D();
envelopeCR.xmin = -180;
envelopeCR.xmax = 180;
envelopeCR.ymin = -90;
envelopeCR.ymax = 90;
// CR
com.epl.geometry.Polyline clippedPolylineCR = (com.epl.geometry.Polyline)clipOp.Execute(polylineCR, envelopeCR, gcsWGS84, null);
com.epl.geometry.Point pointResult = new com.epl.geometry.Point();
clippedPolylineCR.GetPointByVal(0, pointResult);
NUnit.Framework.Assert.IsTrue(pointResult.GetX() == -180);
clippedPolylineCR.GetPointByVal(1, pointResult);
NUnit.Framework.Assert.IsTrue(pointResult.GetX() == -90);
clippedPolylineCR.GetPointByVal(2, pointResult);
NUnit.Framework.Assert.IsTrue(pointResult.GetX() == 0);
clippedPolylineCR.GetPointByVal(3, pointResult);
NUnit.Framework.Assert.IsTrue(pointResult.GetX() == 100);
clippedPolylineCR.GetPointByVal(4, pointResult);
NUnit.Framework.Assert.IsTrue(pointResult.GetX() == 170);
clippedPolylineCR.GetPointByVal(5, pointResult);
NUnit.Framework.Assert.IsTrue(pointResult.GetX() == 180);
}
public static void TestArcObjectsFailureCR196492()
{
com.epl.geometry.OperatorFactoryLocal engine = com.epl.geometry.OperatorFactoryLocal.GetInstance();
com.epl.geometry.OperatorClip clipOp = (com.epl.geometry.OperatorClip)engine.GetOperator(com.epl.geometry.Operator.Type.Clip);
com.epl.geometry.Polygon polygon = new com.epl.geometry.Polygon();
polygon.AddEnvelope(new com.epl.geometry.Envelope2D(0, 0, 600, 600), false);
polygon.StartPath(30, 300);
polygon.LineTo(20, 310);
polygon.LineTo(10, 300);
com.epl.geometry.SpatialReference gcsWGS84 = com.epl.geometry.SpatialReference.Create(4326);
com.epl.geometry.Envelope2D envelopeCR = new com.epl.geometry.Envelope2D(10, 10, 500, 500);
com.epl.geometry.Polygon clippedPolygon = (com.epl.geometry.Polygon)clipOp.Execute(polygon, envelopeCR, gcsWGS84, null);
NUnit.Framework.Assert.IsTrue(clippedPolygon.GetPointCount() == 7);
}
public static void TestClipAttributes()
{
com.epl.geometry.OperatorFactoryLocal engine = com.epl.geometry.OperatorFactoryLocal.GetInstance();
com.epl.geometry.OperatorClip clipOp = (com.epl.geometry.OperatorClip)engine.GetOperator(com.epl.geometry.Operator.Type.Clip);
{
com.epl.geometry.Polygon polygon = new com.epl.geometry.Polygon();
polygon.AddAttribute(com.epl.geometry.VertexDescription.Semantics.M);
polygon.StartPath(0, 0);
polygon.LineTo(30, 30);
polygon.LineTo(60, 0);
polygon.SetAttribute(com.epl.geometry.VertexDescription.Semantics.M, 0, 0, 0);
polygon.SetAttribute(com.epl.geometry.VertexDescription.Semantics.M, 1, 0, 60);
polygon.SetAttribute(com.epl.geometry.VertexDescription.Semantics.M, 2, 0, 120);
com.epl.geometry.Envelope2D clipper = new com.epl.geometry.Envelope2D();
clipper.SetCoords(10, 0, 50, 20);
com.epl.geometry.Polygon clippedPolygon = (com.epl.geometry.Polygon)clipOp.Execute(polygon, clipper, com.epl.geometry.SpatialReference.Create(4326), null);
NUnit.Framework.Assert.IsTrue(clippedPolygon.GetAttributeAsDbl(com.epl.geometry.VertexDescription.Semantics.M, 0, 0) == 100);
NUnit.Framework.Assert.IsTrue(clippedPolygon.GetAttributeAsDbl(com.epl.geometry.VertexDescription.Semantics.M, 1, 0) == 19.999999999999996);
// 20.0
NUnit.Framework.Assert.IsTrue(clippedPolygon.GetAttributeAsDbl(com.epl.geometry.VertexDescription.Semantics.M, 2, 0) == 20);
NUnit.Framework.Assert.IsTrue(clippedPolygon.GetAttributeAsDbl(com.epl.geometry.VertexDescription.Semantics.M, 3, 0) == 40);
NUnit.Framework.Assert.IsTrue(clippedPolygon.GetAttributeAsDbl(com.epl.geometry.VertexDescription.Semantics.M, 4, 0) == 80);
NUnit.Framework.Assert.IsTrue(clippedPolygon.GetAttributeAsDbl(com.epl.geometry.VertexDescription.Semantics.M, 5, 0) == 100);
}
{
com.epl.geometry.Polygon polygon = new com.epl.geometry.Polygon();
polygon.AddAttribute(com.epl.geometry.VertexDescription.Semantics.M);
polygon.StartPath(0, 0);
polygon.LineTo(0, 40);
polygon.LineTo(20, 40);
polygon.LineTo(20, 0);
polygon.SetAttribute(com.epl.geometry.VertexDescription.Semantics.M, 0, 0, 0);
polygon.SetAttribute(com.epl.geometry.VertexDescription.Semantics.M, 1, 0, 60);
polygon.SetAttribute(com.epl.geometry.VertexDescription.Semantics.M, 2, 0, 120);
polygon.SetAttribute(com.epl.geometry.VertexDescription.Semantics.M, 3, 0, 180);
com.epl.geometry.Envelope2D clipper = new com.epl.geometry.Envelope2D();
clipper.SetCoords(0, 10, 20, 20);
com.epl.geometry.Polygon clippedPolygon = (com.epl.geometry.Polygon)clipOp.Execute(polygon, clipper, com.epl.geometry.SpatialReference.Create(4326), null);
NUnit.Framework.Assert.IsTrue(clippedPolygon.GetAttributeAsDbl(com.epl.geometry.VertexDescription.Semantics.M, 0, 0) == 15);
NUnit.Framework.Assert.IsTrue(clippedPolygon.GetAttributeAsDbl(com.epl.geometry.VertexDescription.Semantics.M, 1, 0) == 30);
NUnit.Framework.Assert.IsTrue(clippedPolygon.GetAttributeAsDbl(com.epl.geometry.VertexDescription.Semantics.M, 2, 0) == 150);
NUnit.Framework.Assert.IsTrue(clippedPolygon.GetAttributeAsDbl(com.epl.geometry.VertexDescription.Semantics.M, 3, 0) == 165);
}
}
/// <summary>Calculates the clipped geometry from a target geometry using an envelope.</summary>
/// <remarks>
/// Calculates the clipped geometry from a target geometry using an envelope.
/// See OperatorClip.
/// </remarks>
/// <param name="geometry">The geometry to be clipped.</param>
/// <param name="envelope">The envelope used to clip.</param>
/// <param name="spatialReference">The spatial reference of the geometries.</param>
/// <returns>The geometry created by clipping.</returns>
public static com.epl.geometry.Geometry Clip(com.epl.geometry.Geometry geometry, com.epl.geometry.Envelope envelope, com.epl.geometry.SpatialReference spatialReference)
{
com.epl.geometry.OperatorClip op = (com.epl.geometry.OperatorClip)factory.GetOperator(com.epl.geometry.Operator.Type.Clip);
com.epl.geometry.Geometry result = op.Execute(geometry, com.epl.geometry.Envelope2D.Construct(envelope.GetXMin(), envelope.GetYMin(), envelope.GetXMax(), envelope.GetYMax()), spatialReference, null);
return(result);
}
public static void TestClipGeometries()
{
// RandomTest();
com.epl.geometry.OperatorFactoryLocal engine = com.epl.geometry.OperatorFactoryLocal.GetInstance();
com.epl.geometry.OperatorClip clipOp = (com.epl.geometry.OperatorClip)engine.GetOperator(com.epl.geometry.Operator.Type.Clip);
com.epl.geometry.Polygon polygon = MakePolygon();
com.epl.geometry.SimpleGeometryCursor polygonCurs = new com.epl.geometry.SimpleGeometryCursor(polygon);
com.epl.geometry.Polyline polyline = MakePolyline();
com.epl.geometry.SimpleGeometryCursor polylineCurs = new com.epl.geometry.SimpleGeometryCursor(polyline);
com.epl.geometry.MultiPoint multipoint = MakeMultiPoint();
com.epl.geometry.SimpleGeometryCursor multipointCurs = new com.epl.geometry.SimpleGeometryCursor(multipoint);
com.epl.geometry.Point point = MakePoint();
com.epl.geometry.SimpleGeometryCursor pointCurs = new com.epl.geometry.SimpleGeometryCursor(point);
com.epl.geometry.SpatialReference spatialRef = com.epl.geometry.SpatialReference.Create(3857);
com.epl.geometry.Envelope2D envelope = new com.epl.geometry.Envelope2D();
envelope.xmin = 0;
envelope.xmax = 20;
envelope.ymin = 5;
envelope.ymax = 15;
// Cursor implementation
com.epl.geometry.GeometryCursor clipPolygonCurs = clipOp.Execute(polygonCurs, envelope, spatialRef, null);
com.epl.geometry.Polygon clippedPolygon = (com.epl.geometry.Polygon)clipPolygonCurs.Next();
double area = clippedPolygon.CalculateArea2D();
NUnit.Framework.Assert.IsTrue(System.Math.Abs(area - 25) < 0.00001);
// Single Geometry implementation
clippedPolygon = (com.epl.geometry.Polygon)clipOp.Execute(polygon, envelope, spatialRef, null);
area = clippedPolygon.CalculateArea2D();
NUnit.Framework.Assert.IsTrue(System.Math.Abs(area - 25) < 0.00001);
// Cursor implementation
com.epl.geometry.GeometryCursor clipPolylineCurs = clipOp.Execute(polylineCurs, envelope, spatialRef, null);
com.epl.geometry.Polyline clippedPolyline = (com.epl.geometry.Polyline)clipPolylineCurs.Next();
double length = clippedPolyline.CalculateLength2D();
NUnit.Framework.Assert.IsTrue(System.Math.Abs(length - 10 * System.Math.Sqrt(2.0)) < 1e-10);
// Single Geometry implementation
clippedPolyline = (com.epl.geometry.Polyline)clipOp.Execute(polyline, envelope, spatialRef, null);
length = clippedPolyline.CalculateLength2D();
NUnit.Framework.Assert.IsTrue(System.Math.Abs(length - 10 * System.Math.Sqrt(2.0)) < 1e-10);
// Cursor implementation
com.epl.geometry.GeometryCursor clipMulti_pointCurs = clipOp.Execute(multipointCurs, envelope, spatialRef, null);
com.epl.geometry.MultiPoint clipped_multi_point = (com.epl.geometry.MultiPoint)clipMulti_pointCurs.Next();
int pointCount = clipped_multi_point.GetPointCount();
NUnit.Framework.Assert.IsTrue(pointCount == 2);
// Cursor implementation
com.epl.geometry.GeometryCursor clipPointCurs = clipOp.Execute(pointCurs, envelope, spatialRef, null);
com.epl.geometry.Point clippedPoint = (com.epl.geometry.Point)clipPointCurs.Next();
NUnit.Framework.Assert.IsTrue(clippedPoint != null);
// RandomTest();
com.epl.geometry.Polyline _poly = new com.epl.geometry.Polyline();
_poly.StartPath(2, 2);
_poly.LineTo(0, 0);
com.epl.geometry.Envelope2D _env = new com.epl.geometry.Envelope2D();
_env.SetCoords(2, 1, 5, 3);
com.epl.geometry.Polyline _clippedPolyline = (com.epl.geometry.Polyline)clipOp.Execute(_poly, _env, spatialRef, null);
NUnit.Framework.Assert.IsTrue(_clippedPolyline.IsEmpty());
{
com.epl.geometry.Polygon poly = new com.epl.geometry.Polygon();
poly.AddEnvelope(new com.epl.geometry.Envelope2D(0, 0, 100, 100), false);
poly.AddEnvelope(new com.epl.geometry.Envelope2D(5, 5, 95, 95), true);
com.epl.geometry.Polygon clippedPoly = (com.epl.geometry.Polygon)clipOp.Execute(poly, new com.epl.geometry.Envelope2D(-10, -10, 110, 50), spatialRef, null);
NUnit.Framework.Assert.IsTrue(clippedPoly.GetPathCount() == 1);
NUnit.Framework.Assert.IsTrue(clippedPoly.GetPointCount() == 8);
}
}
