public static IGeometry FindSingleNodePoint(IGeometry geom)
{
FastNodingValidator nv = new FastNodingValidator(SegmentStringUtil.ExtractNodedSegmentStrings(geom));
bool temp = nv.IsValid;
var intPts = nv.Intersections;
if (intPts.Count == 0) return null;
return FunctionsUtil.GetFactoryOrDefault((IGeometry)null).CreatePoint((Coordinate)intPts[0]);
}
/// <summary>
/// Gets a list of all intersections found.
/// Intersections are represented as <see cref="Coordinate"/>s.
/// List is empty if none were found.
/// <param name="segStrings">A collection of SegmentStrings</param>
/// <returns>a list of <see cref="Coordinate"/></returns>
/// </summary>
public static IList <Coordinate> ComputeIntersections(IEnumerable <ISegmentString> segStrings)
{
var nv = new FastNodingValidator(segStrings);
nv.FindAllIntersections = true;
bool temp = nv.IsValid;
return(nv.Intersections);
}
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));
}
private void Validate()
{
var nv = new FastNodingValidator(_nodedSs);
nv.CheckValid();
}
public static IList<Coordinate> ComputeIntersections(IEnumerable<ISegmentString> segStrings)
{
FastNodingValidator nv = new FastNodingValidator(segStrings);
nv.FindAllIntersections = true;
bool temp = nv.IsValid;
return nv.Intersections;
}
public static bool IsNodingValid(IGeometry geom)
{
FastNodingValidator nv = new FastNodingValidator(SegmentStringUtil.ExtractNodedSegmentStrings(geom));
return nv.IsValid;
}