public void ChangeInDefinitionUpdatesGeometry()
{
//v-shaped cs 100 wide
var crossSectionDefinitionYZ = new CrossSectionDefinitionYZ("");
crossSectionDefinitionYZ.YZDataTable.AddCrossSectionYZRow(0, 100, 0);
crossSectionDefinitionYZ.YZDataTable.AddCrossSectionYZRow(50, 0, 0);
crossSectionDefinitionYZ.YZDataTable.AddCrossSectionYZRow(100, 100, 0);
crossSectionDefinitionYZ.Thalweg = 50;
//horizontal line
var network = HydroNetworkHelper.GetSnakeHydroNetwork(new Point(0, 0), new Point(100, 0));
var branch = network.Channels.First();
ICrossSection crossSection = HydroNetworkHelper.AddCrossSectionDefinitionToBranch(branch, crossSectionDefinitionYZ, 50);
var expectedGeometry = new LineString(new[] { new Coordinate(50, 50), new Coordinate(50, -50) });
//use equals exact because rounding errors occur
Assert.IsTrue(expectedGeometry.EqualsExact(crossSection.Geometry, 0.0001));
//action : change the profile
crossSectionDefinitionYZ.YZDataTable[0].Yq = -20;
expectedGeometry = new LineString(new[] { new Coordinate(50, 70), new Coordinate(50, -50) });
Assert.IsTrue(expectedGeometry.EqualsExact(crossSection.Geometry, 0.0001));
//action: change the thalweg
crossSectionDefinitionYZ.Thalweg = 40;
expectedGeometry = new LineString(new[] { new Coordinate(50, 60), new Coordinate(50, -60) });
Assert.IsTrue(expectedGeometry.EqualsExact(crossSection.Geometry, 0.0001));
}
public void Test5()
{
WKTReader reader = new WKTReader(new GeometryFactory(new PrecisionModel(1), 0));
IGeometry geometry = reader.Read("MULTIPOINT (0 0, 5 0, 10 0)");
LineString convexHull = (LineString)reader.Read("LINESTRING (0 0, 10 0)");
Assert.IsTrue(convexHull.EqualsExact(geometry.ConvexHull()));
}
public void Test1()
{
WKTReader reader = new WKTReader(new GeometryFactory(new PrecisionModel(1), 0));
LineString lineString = (LineString)reader.Read("LINESTRING (30 220, 240 220, 240 220)");
LineString convexHull = (LineString)reader.Read("LINESTRING (30 220, 240 220)");
Assert.IsTrue(convexHull.EqualsExact(lineString.ConvexHull()));
}
public void CreatePerpendicularGeometry()
{
var branchGeometry = new LineString(new[] { new Coordinate(0, 0), new Coordinate(100, 0) });
var minY = -40.0d;
var maxY = 60.0d;
var offsetAlongBranch = 25.0d;
var perpendicularGeometry = CrossSectionHelper.CreatePerpendicularGeometry(branchGeometry, offsetAlongBranch, minY, maxY, 0.0);
//compare the calculated geometry with a small tolerance. Rounding errors occur due to Sin/Cos
LineString expected = new LineString(new[] { new Coordinate(25, 40), new Coordinate(25, -60) });
Assert.IsTrue(expected.EqualsExact(perpendicularGeometry, 0.00001));
}
/// <summary>
///
/// </summary>
public void Start()
{
var pointInLine = Factory.CreatePoint(new Coordinate(20, 10));
var pointOutLine = Factory.CreatePoint(new Coordinate(20, 31));
var aLine = Factory.CreateLineString(new Coordinate[] { new Coordinate(23, 32.2), new Coordinate(922, 11) });
var 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, new BufferParameters {
EndCapStyle = EndCapStyle.Flat
}));
Write(line.Buffer(10, new BufferParameters {
EndCapStyle = EndCapStyle.Square
}));
Write(line.Buffer(10, 20));
Write(line.Buffer(10, new BufferParameters(20)
{
EndCapStyle = EndCapStyle.Flat
}));
Write(line.Buffer(10, new BufferParameters(20)
{
EndCapStyle = EndCapStyle.Square
}));
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.EqualsTopologically(line.Copy() as LineString));
Write(line.EqualsExact(line.Copy() 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)";
var geom1 = Reader.Read(linestring);
Write(geom1.AsText());
var geom2 = Reader.Read(anotherlinestringg);
Write(geom2.AsText());
byte[] bytes = line.AsBinary();
var 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;
}
}