public void ParseLineString()
{
string linestring = "LINESTRING(20 20,20 30,30 30,30 20,40 20)";
ILineString geom = GeometryFromWKT.Parse(linestring) as ILineString;
Assert.IsNotNull(geom);
Assert.AreEqual(40, geom.Length);
Assert.IsFalse(geom.IsRing);
Assert.AreEqual(linestring, geom.AsText());
Assert.IsTrue((GeometryFromWKT.Parse("LINESTRING EMPTY") as ILineString).IsEmpty);
Assert.AreEqual("LINESTRING EMPTY", GeometryFactory.CreateLineString(null).AsText());
}
public static void Run()
{
//ExStart: ConvertGeometryToEditable
ILineString readOnlyLine = (ILineString)Geometry.FromText("LINESTRING (1 1, 2 2)");
// Interfaces inherited from IGeometry represent read-only geometries, while
// concrete classes inherited from Geometry represent editable geometries.
// If you need to edit a geometry represented by an interface, 'ToEditable' method should be used to
// get an editable copy.
LineString editableLine = readOnlyLine.ToEditable();
// Line can be edited now
editableLine.AddPoint(3, 3);
Console.WriteLine(editableLine.AsText()); // LINESTRING (1 1, 2 2, 3 3)
// Initial geometry did not change
Console.WriteLine(readOnlyLine.AsText()); // LINESTRING (1 1, 2 2)
//ExEnd: ConvertGeometryToEditable
}
/// <summary>
///
/// </summary>
public override void Start()
{
IPoint pointInLine = Factory.CreatePoint(new Coordinate(20, 10));
IPoint pointOutLine = Factory.CreatePoint(new Coordinate(20, 31));
ILineString aLine = Factory.CreateLineString(new Coordinate[] { new Coordinate(23, 32.2), new Coordinate(922, 11) });
ILineString anotherLine = Factory.CreateLineString(new Coordinate[] { new Coordinate(0, 1), new Coordinate(30, 30) });
try
{
Write(line.Area);
Write(line.Boundary);
Write(line.BoundaryDimension);
Write(line.Centroid);
Write(line.Coordinate);
Write(line.Coordinates);
Write(line.CoordinateSequence);
Write(line.Dimension);
Write(line.EndPoint);
Write(line.Envelope);
Write(line.EnvelopeInternal);
Write(line.InteriorPoint);
Write(line.IsClosed);
Write(line.IsEmpty);
Write(line.IsRing);
Write(line.IsSimple);
Write(line.IsValid);
Write(line.Length);
Write(line.NumPoints);
Write(line.StartPoint);
if (line.UserData != null)
{
Write(line.UserData);
}
else
{
Write("UserData null");
}
Write(line.Buffer(10));
Write(line.Buffer(10, BufferStyle.CapButt));
Write(line.Buffer(10, BufferStyle.CapSquare));
Write(line.Buffer(10, 20));
Write(line.Buffer(10, 20, BufferStyle.CapButt));
Write(line.Buffer(10, 20, BufferStyle.CapSquare));
Write(line.Contains(pointInLine));
Write(line.Contains(pointOutLine));
Write(line.Crosses(pointInLine));
Write(line.Crosses(pointOutLine));
Write(line.Difference(pointInLine));
Write(line.Difference(pointOutLine));
Write(line.Disjoint(pointInLine));
Write(line.Disjoint(pointOutLine));
Write(line.Distance(pointInLine));
Write(line.Distance(pointOutLine));
Write(line.Equals(line.Clone() as LineString));
Write(line.EqualsExact(line.Clone() as LineString));
Write(line.ConvexHull());
Write(line.Intersection(pointInLine));
Write(line.Intersection(pointOutLine));
Write(line.Intersection(aLine));
Write(line.Intersects(pointInLine));
Write(line.Intersects(pointOutLine));
Write(line.Intersects(aLine));
Write(line.IsWithinDistance(pointOutLine, 2));
Write(line.IsWithinDistance(pointOutLine, 222));
Write(line.Overlaps(pointInLine));
Write(line.Overlaps(pointOutLine));
Write(line.Overlaps(aLine));
Write(line.Overlaps(anotherLine));
Write(line.Relate(pointInLine));
Write(line.Relate(pointOutLine));
Write(line.Relate(aLine));
Write(line.Relate(anotherLine));
Write(line.SymmetricDifference(pointInLine));
Write(line.SymmetricDifference(pointOutLine));
Write(line.SymmetricDifference(aLine));
Write(line.SymmetricDifference(anotherLine));
Write(line.ToString());
Write(line.AsText());
Write(line.Touches(pointInLine));
Write(line.Touches(pointOutLine));
Write(line.Touches(aLine));
Write(line.Touches(anotherLine));
Write(line.Union(pointInLine));
Write(line.Union(pointOutLine));
Write(line.Union(aLine));
Write(line.Union(anotherLine));
Write(line.Within(pointInLine));
Write(line.Within(pointOutLine));
Write(line.Within(aLine));
Write(line.Within(anotherLine));
string linestring = "LINESTRING (1.2 3.4, 5.6 7.8, 9.1 10.12)";
string anotherlinestringg = "LINESTRING (12345 3654321, 685 7777.945677, 782 111.1)";
IGeometry geom1 = Reader.Read(linestring);
Write(geom1.AsText());
IGeometry geom2 = Reader.Read(anotherlinestringg);
Write(geom2.AsText());
byte[] bytes = line.AsBinary();
IGeometry test1 = new WKBReader().Read(bytes);
Write(test1.ToString());
bytes = new GDBWriter().Write(line);
test1 = new GDBReader().Read(bytes);
Write(test1.ToString());
}
catch (Exception ex)
{
throw ex;
}
}