public void TestInvertedItalicNTSConforming()
{
AffineTransformationBuilder atb = new AffineTransformationBuilder(
new Coordinate(0, 0), new Coordinate(50, 0), new Coordinate(0, 100),
new Coordinate(0, 0), new Coordinate(50, 0), new Coordinate(20, 100));
IGeometry geom = _wktReader.Read(NTS);
//Apply italic effect
geom = atb.GetTransformation().Transform(geom);
Console.WriteLine(geom.AsText());
IGeometry constraint = ((IPolygon)geom).GetInteriorRingN(0);
constraint = geom.Factory.CreatePolygon((ILinearRing)constraint, null);
constraint = ((IPolygon)constraint.Buffer(-1)).Shell;
Coordinate[] coordinates = constraint.Coordinates;
coordinates[coordinates.Length - 1].X -= 1e-7;
coordinates[coordinates.Length - 1].Y -= 1e-7;
constraint = geom.Factory.CreateLineString(coordinates);
Console.WriteLine(constraint.AsText());
//Setup
ConformingDelaunayTriangulationBuilder dtb = new ConformingDelaunayTriangulationBuilder {
Constraints = constraint
};
dtb.SetSites(geom);
IMultiLineString result = dtb.GetEdges(geom.Factory);
Console.WriteLine(result.AsText());
}
public void Test2()
{
IGeometry geom = _wktReader.Read("POLYGON ((0 0, 0 10, 4 10, 4 8, 6 8, 6 10, 10 10, 10 0, 0 0))");
ConformingDelaunayTriangulationBuilder dtb = new ConformingDelaunayTriangulationBuilder();
dtb.SetSites(geom);
IMultiLineString resultEdges = dtb.GetEdges(geom.Factory);
Console.WriteLine(resultEdges.AsText());
IGeometryCollection resultTriangles = dtb.GetTriangles(geom.Factory);
Console.WriteLine(resultTriangles.AsText());
}
public void TestInvertedItalicNTS()
{
AffineTransformationBuilder atb = new AffineTransformationBuilder(
new Coordinate(0, 0),
new Coordinate(50, 0),
new Coordinate(0, 100),
new Coordinate(0, 0),
new Coordinate(50, 0),
new Coordinate(20, 100));
IGeometry geom = _wktReader.Read(NTS);
//Apply italic effect
geom = atb.GetTransformation().Transform(geom);
Console.WriteLine(geom.AsText());
//Setup
DelaunayTriangulationBuilder dtb = new DelaunayTriangulationBuilder();
dtb.SetSites(geom);
IMultiLineString result = dtb.GetEdges(geom.Factory);
Console.WriteLine(result.AsText());
}
public void ParseMultiLineString()
{
string multiLinestring = "MULTILINESTRING((10 10,40 50),(20 20,30 20),(20 20,50 20,50 60,20 20))";
IMultiLineString geom = GeometryFromWKT.Parse(multiLinestring) as IMultiLineString;
Assert.IsNotNull(geom);
Assert.AreEqual(3, geom.NumGeometries);
Assert.AreEqual(180, geom.Length);
Assert.AreEqual(120, geom.Geometries[2].Length);
Assert.IsFalse((geom.Geometries[0] as ILineString).IsClosed, "[0].IsClosed");
Assert.IsFalse((geom.Geometries[1] as ILineString).IsClosed, "[1].IsClosed");
Assert.IsTrue((geom.Geometries[2] as ILineString).IsClosed, "[2].IsClosed");
Assert.IsTrue((geom.Geometries[0] as ILineString).IsSimple, "[0].IsSimple");
Assert.IsTrue((geom.Geometries[1] as ILineString).IsSimple, "[1].IsSimple");
Assert.IsTrue((geom.Geometries[2] as ILineString).IsSimple, "[2].IsSimple");
Assert.IsTrue((geom.Geometries[2] as ILineString).IsRing, "Third line is a ring");
Assert.AreEqual(multiLinestring, geom.AsText());
Assert.IsTrue(GeometryFromWKT.Parse("MULTILINESTRING EMPTY").IsEmpty);
geom = GeometryFromWKT.Parse("MULTILINESTRING((10 10,40 50),(20 20,30 20),EMPTY,(20 20,50 20,50 60,20 20))") as IMultiLineString;
Assert.IsNotNull(geom);
Assert.IsTrue(geom[2].IsEmpty);
Assert.AreEqual(4, geom.NumGeometries);
Assert.AreEqual("MULTILINESTRING EMPTY", GeometryFactory.CreateMultiLineString(null).AsText());
}