private void CheckValid(string[] inputWKT, bool isValidExpected)
{
var input = ReadList(inputWKT);
var segStrings = ToSegmentStrings(input);
var fnv = new FastNodingValidator(segStrings);
bool isValid = fnv.IsValid;
Assert.IsTrue(isValidExpected == isValid);
}
public static Geometry FindOneNode(Geometry geom)
{
var nv = new FastNodingValidator(SegmentStringUtil.ExtractNodedSegmentStrings(geom));
bool temp = nv.IsValid;
var intPts = nv.Intersections;
if (intPts.Count == 0)
{
return(null);
}
return(FunctionsUtil.GetFactoryOrDefault((Geometry)null).CreatePoint((Coordinate)intPts[0]));
}
private void CheckIntersection(string[] inputWKT, string expectedWKT)
{
var input = ReadList(inputWKT);
var expected = Read(expectedWKT);
var pts = expected.Coordinates;
var intPtsExpected = new CoordinateList(pts);
var segStrings = ToSegmentStrings(input);
var intPtsActual = FastNodingValidator.ComputeIntersections(segStrings);
bool isSameNumberOfIntersections = intPtsExpected.Count == intPtsActual.Count;
Assert.True(isSameNumberOfIntersections);
CheckIntersections(intPtsActual, intPtsExpected);
}
public static IGeometry CheckNoding(Geometry geom)
{
var segs = CreateSegmentStrings(geom);
var nv = new FastNodingValidator(segs);
nv.FindAllIntersections = true;
var res = nv.IsValid;
var intPts = nv.Intersections;
var pts = new IPoint[intPts.Count];
for (var i = 0; i < intPts.Count; i++)
{
var coord = intPts[i];
// use default factory in case intersections are not fixed
pts[i] = FunctionsUtil.GetFactoryOrDefault(null).CreatePoint(coord);
}
return(FunctionsUtil.GetFactoryOrDefault(null).CreateMultiPoint(
pts));
}
/// <summary>
/// Creates a new validator for the given collection of <see cref="Edge"/>s.
/// </summary>
public EdgeNodingValidator(IEnumerable <Edge> edges)
{
_nv = new FastNodingValidator(ToSegmentStrings(edges));
}
public static Geometry FindNodes(Geometry geom)
{
var intPts = FastNodingValidator.ComputeIntersections(SegmentStringUtil.ExtractNodedSegmentStrings(geom));
return(FunctionsUtil.GetFactoryOrDefault((Geometry)null).CreateMultiPointFromCoords(CoordinateArrays.ToCoordinateArray(intPts)));
}
public static bool IsNodingValid(Geometry geom)
{
var nv = new FastNodingValidator(SegmentStringUtil.ExtractNodedSegmentStrings(geom));
return(nv.IsValid);
}
private static void PerformTest(ICoordinateSequence sequence)
{
if (sequence == null)
throw new ArgumentNullException("sequence");
Coordinate[] coordinates = sequence.ToCoordinateArray();
NodedSegmentString segmentString = new NodedSegmentString(coordinates, null);
Stopwatch watch = new Stopwatch();
NodingValidator validator = new NodingValidator(new[] { segmentString });
validator.CheckValid();
watch.Start();
validator.CheckValid();
watch.Stop();
Console.WriteLine("NodingValidator.CheckValid => ElapsedMilliseconds: {0}", watch.ElapsedMilliseconds);
BasicSegmentString segmentStringBasic = new BasicSegmentString(coordinates, null);
FastNodingValidator fastValidator = new FastNodingValidator(new[] { segmentStringBasic });
watch.Reset(); watch.Start();
fastValidator.CheckValid();
watch.Stop();
Console.WriteLine("FastNodingValidator.CheckValid => ElapsedMilliseconds: {0}", watch.ElapsedMilliseconds);
}
public static IGeometry FindNodePoints(IGeometry geom)
{
IList <Coordinate> intPts = FastNodingValidator.ComputeIntersections(SegmentStringUtil.ExtractNodedSegmentStrings(geom));
return(FunctionsUtil.GetFactoryOrDefault(null).CreateMultiPoint(CoordinateArrays.ToCoordinateArray(intPts)));
}
