public static void DoTest(string[] inputWKT, string[] expectedOutputWKT, bool compareDirections)
{
var lineMerger = new LineMerger();
lineMerger.Add(ToGeometries(inputWKT));
Compare(ToGeometries(expectedOutputWKT), lineMerger.GetMergedLineStrings(), compareDirections);
}
public static IList <IGeometry> MergeLines(IGeometry geometry)
{
var lineMerger = new LineMerger();
lineMerger.Add(geometry);
return(lineMerger.GetMergedLineStrings());
}
public Draw(IConsole console, LineThickNess thickness = LineThickNess.Single, MergeOrOverlap mergeOrOverlap = MergeOrOverlap.Merge)
{
_console = console;
_mergeOrOverlap = mergeOrOverlap;
_lineMerger = new LineMerger();
Thickness = thickness;
}
public static Geometry MergeLines(Geometry g)
{
var merger = new LineMerger();
merger.Add(g);
var lines = merger.GetMergedLineStrings();
return(g.Factory.BuildGeometry(lines));
}
public static IGeometry MergeLines(IGeometry g)
{
LineMerger merger = new LineMerger();
merger.Add(g);
IList <IGeometry> lines = merger.GetMergedLineStrings();
return(g.Factory.BuildGeometry(lines));
}
private static IGeometry DissolveLines(IGeometry lines)
{
var dissolved = lines.Union();
var merger = new LineMerger();
merger.Add(dissolved);
var mergedColl = merger.GetMergedLineStrings();
var merged = lines.Factory.BuildGeometry(mergedColl);
return(merged);
}
internal virtual void Run()
{
IList <IGeometry> lineStrings = Data;
LineMerger lineMerger = new LineMerger();
lineMerger.Add(lineStrings);
var mergedLineStrings = lineMerger.GetMergedLineStrings();
Console.WriteLine("Lines formed (" + mergedLineStrings.Count + "):");
foreach (var obj in mergedLineStrings)
{
Console.WriteLine(obj);
}
}
internal virtual void Run()
{
IList lineStrings = Data;
LineMerger lineMerger = new LineMerger();
lineMerger.Add(lineStrings);
ICollection mergedLineStrings = lineMerger.GetMergedLineStrings();
Console.WriteLine("Lines formed (" + mergedLineStrings.Count + "):");
foreach (object obj in mergedLineStrings)
{
Console.WriteLine(obj);
}
}
/** erzeugt aus einer Collection von LineString's eine Collection von LineStrings,
* wo die zusammengehörende Teile zu einem LineString zusammengefasst werden
* @param geometry
* @return
*/
public static List <ILineString> mergeLines(IGeometryFactory gf, List <ILineString> lines)
{
LineMerger lineMerger = new LineMerger();
List <ILineString> .Enumerator iterator = lines.GetEnumerator();
while (iterator.MoveNext())
{
lineMerger.Add(iterator.Current);
}
List <ILineString> mergedLineStrings = lineMerger.GetMergedLineStrings().Select(g => (ILineString)g).ToList();
foreach (LineString line in mergedLineStrings)
{
line.SRID = gf.SRID;
}
return(mergedLineStrings);
}
/**
* Nodes a LineString and returns a List of Noded LineString's. Used to
* repare auto-intersecting LineString and Polygons. This method cannot
* process CoordinateSequence. The noding process is limited to 3d
* geometries.<br/>
* Preserves duplicate coordinates.
*
* @param coords coordinate array to be noded
* @param gf geometryFactory to use
* @return a list of noded LineStrings
*/
private ISet <LineString> nodeLineString(Coordinate[] coords, GeometryFactory gf)
{
MCIndexNoder noder = new MCIndexNoder();
noder.SegmentIntersector = new IntersectionAdder(new RobustLineIntersector());
List <ISegmentString> list = new ();
list.Add(new NodedSegmentString(coords, null));
noder.ComputeNodes(list);
List <LineString> lineStringList = new ();
foreach (NetTopologySuite.Geometries.Geometry segmentString in noder.GetNodedSubstrings())
{
lineStringList.Add(gf.CreateLineString(
segmentString.Coordinates
));
}
// WARNING : merger loose original linestrings
// It is useful for LinearRings but should not be used for (Multi)LineStrings
LineMerger merger = new LineMerger();
merger.Add(lineStringList);
lineStringList = (List <LineString>)merger.GetMergedLineStrings();
// Remove duplicate linestrings preserving main orientation
ISet <LineString> lineStringSet = new HashSet <LineString>();
foreach (LineString line in lineStringList)
{
// TODO as equals makes a topological comparison, comparison with line.reverse maybe useless
if (!lineStringSet.Contains(line) && !lineStringSet.Contains((LineString)line.Reverse()))
{
lineStringSet.Add(line);
}
}
return(lineStringSet);
}
/// <summary>
/// Gets the contours from the raster.
/// </summary>
/// <param name="rst">Raster to get the contours from.</param>
/// <param name="x">The x values.</param>
/// <param name="y">The y values.</param>
/// <param name="zlev">Level to get the contours for.</param>
/// <returns>The contours that were found.</returns>
public static IList <IGeometry> GetContours(ref Raster rst, double[] x, double[] y, double zlev)
{
List <LineString> lsList = new List <LineString>();
double[] xx = new double[3];
double[] yy = new double[3];
double[] zz = new double[3];
for (int j = 0; j < rst.NumColumns - 1; j++)
{
bool jpari = (int)(j / 2.0) * 2 == j;
for (int i = 0; i < rst.NumRows - 1; i++)
{
bool ipari = (int)(i / 2.0) * 2 == i;
if (jpari == ipari)
{
xx[0] = x[j];
yy[0] = y[i];
zz[0] = rst.Value[i, j];
xx[1] = x[j];
yy[1] = y[i + 1];
zz[1] = rst.Value[i + 1, j];
xx[2] = x[j + 1];
yy[2] = y[i];
zz[2] = rst.Value[i, j + 1];
Coordinate[] c = Intersect(xx, yy, zz, zlev);
if (c != null)
{
lsList.Add(new LineString(c));
}
xx[0] = x[j + 1];
yy[0] = y[i];
zz[0] = rst.Value[i, j + 1];
xx[1] = x[j];
yy[1] = y[i + 1];
zz[1] = rst.Value[i + 1, j];
xx[2] = x[j + 1];
yy[2] = y[i + 1];
zz[2] = rst.Value[i + 1, j + 1];
Coordinate[] c1 = Intersect(xx, yy, zz, zlev);
if (c1 != null)
{
lsList.Add(new LineString(c1));
}
}
else
{
xx[0] = x[j];
yy[0] = y[i];
zz[0] = rst.Value[i, j];
xx[1] = x[j];
yy[1] = y[i + 1];
zz[1] = rst.Value[i + 1, j];
xx[2] = x[j + 1];
yy[2] = y[i + 1];
zz[2] = rst.Value[i + 1, j + 1];
Coordinate[] c = Intersect(xx, yy, zz, zlev);
if (c != null)
{
lsList.Add(new LineString(c));
}
xx[0] = x[j];
yy[0] = y[i];
zz[0] = rst.Value[i, j];
xx[1] = x[j + 1];
yy[1] = y[i + 1];
zz[1] = rst.Value[i + 1, j + 1];
xx[2] = x[j + 1];
yy[2] = y[i];
zz[2] = rst.Value[i, j + 1];
Coordinate[] c1 = Intersect(xx, yy, zz, zlev);
if (c1 != null)
{
lsList.Add(new LineString(c1));
}
}
}
}
LineMerger lm = new LineMerger();
lm.Add(lsList);
IList <IGeometry> merged = lm.GetMergedLineStrings();
return(merged);
}
public IEnumerable <IdentifiedObject> Transform(CimContext context, IEnumerable <IdentifiedObject> input)
{
HashSet <PhysicalNetworkModel.IdentifiedObject> dropList = new HashSet <IdentifiedObject>();
List <PhysicalNetworkModel.IdentifiedObject> addList = new List <IdentifiedObject>();
foreach (var inputCimObject in input)
{
// Find connectivity nodes outside substations
if (inputCimObject is ConnectivityNode && !dropList.Contains(inputCimObject) && !inputCimObject.IsInsideSubstation(context))
{
ConnectivityNode cn = inputCimObject as ConnectivityNode;
// Handle that acls cn relationship might have changed
var cnNeighborsx = cn.GetNeighborConductingEquipments(context);
// If two acls and we are above low voltage, merge them
if (cnNeighborsx.Count(o => o.BaseVoltage > 5000) > 0)
{
// acls <-> acls
if (cnNeighborsx.Count(o => o is ACLineSegmentExt) == 2)
{
var acls = cnNeighborsx.Where(o => o is ACLineSegmentExt).ToList();
var acls1 = acls[0] as ACLineSegment;
var acls2 = acls[1] as ACLineSegment;
// NEVER MERGE
bool theSame = false;
// Compate bch
if (acls1.bch != null && acls2.bch != null && !CompareAclsValue(acls1.length.Value, acls1.bch.Value, acls2.length.Value, acls2.bch.Value))
{
theSame = false;
}
// Compate b0ch
if (acls1.b0ch != null && acls2.b0ch != null && !CompareAclsValue(acls1.length.Value, acls1.b0ch.Value, acls2.length.Value, acls2.b0ch.Value))
{
theSame = false;
}
// Compare gch
if (acls1.gch != null && acls2.gch != null && !CompareAclsValue(acls1.length.Value, acls1.gch.Value, acls2.length.Value, acls2.gch.Value))
{
theSame = false;
}
// Compare g0ch
if (acls1.g0ch != null && acls2.g0ch != null && !CompareAclsValue(acls1.length.Value, acls1.g0ch.Value, acls2.length.Value, acls2.g0ch.Value))
{
theSame = false;
}
// Compare r
if (acls1.r != null && acls2.r != null && !CompareAclsValue(acls1.length.Value, acls1.r.Value, acls2.length.Value, acls2.r.Value))
{
theSame = false;
}
// Compare r0
if (acls1.r0 != null && acls2.r0 != null && !CompareAclsValue(acls1.length.Value, acls1.r0.Value, acls2.length.Value, acls2.r0.Value))
{
theSame = false;
}
// Compare x
if (acls1.x != null && acls2.x != null && !CompareAclsValue(acls1.length.Value, acls1.x.Value, acls2.length.Value, acls2.x.Value))
{
theSame = false;
}
// Compare x0
if (acls1.x0 != null && acls2.x0 != null && !CompareAclsValue(acls1.length.Value, acls1.x0.Value, acls2.length.Value, acls2.x0.Value))
{
theSame = false;
}
// If the cables have the same eletrical charastica, merge them
if (theSame)
{
// ACLS 1 will survive, ACLS 2 and the CN will die
dropList.Add(cn);
dropList.Add(acls2);
// drop acls 2 terminals
foreach (var tc in context.GetConnections(acls2))
{
dropList.Add(tc.Terminal);
}
var loc1 = context.GetObject <LocationExt>(acls1.Location.@ref);
var loc2 = context.GetObject <LocationExt>(acls2.Location.@ref);
LineMerger lm = new LineMerger();
// Convert to NTS geometries
lm.Add(GetGeometry(loc1));
lm.Add(GetGeometry(loc2));
// Merge the two line strings
var mergedLineList = lm.GetMergedLineStrings();
if (mergedLineList.Count != 1)
{
throw new Exception("Cannot merge ACLS: " + acls1.mRID + " and " + acls2.mRID);
}
// Overwrite loc 1 coordinated with merged strings
loc1.coordinates = GetPoints((ILineString)mergedLineList[0]).ToArray();
// Sum length
acls1.length.Value += acls2.length.Value;
// Sum bch
if (acls1.bch != null && acls2.bch != null)
{
acls1.bch.Value += acls2.bch.Value;
}
// Sum b0ch
if (acls1.b0ch != null && acls2.b0ch != null)
{
acls1.b0ch.Value += acls2.b0ch.Value;
}
// Sum gch
if (acls1.gch != null && acls2.gch != null)
{
acls1.gch.Value += acls2.gch.Value;
}
// Sum g0ch
if (acls1.g0ch != null && acls2.g0ch != null)
{
acls1.g0ch.Value += acls2.g0ch.Value;
}
// Sum r
if (acls1.r != null && acls2.r != null)
{
acls1.r.Value += acls2.r.Value;
}
// Sum r0
if (acls1.r0 != null && acls2.r0 != null)
{
acls1.r0.Value += acls2.r0.Value;
}
// Sum x
if (acls1.x != null && acls2.x != null)
{
acls1.x.Value += acls2.x.Value;
}
// Sum x0
if (acls1.x0 != null && acls2.x0 != null)
{
acls1.x0.Value += acls2.x0.Value;
}
// Find cn in the other end of ACLS 2
var acls2otherEndCn = context.GetConnections(acls2).Find(o => o.ConnectivityNode != cn);
// Get terminal of ACLS 1 that point to ACLS 2
var acls1Terminal = acls1.GetTerminal(acls2, true, context);
// Disconnect ACLS 2 terminals
var acls2connections = context.GetConnections(acls2);
List <Terminal> terminalsToDisconnect = new List <Terminal>();
foreach (var acls2con in acls2connections)
{
terminalsToDisconnect.Add(acls2con.Terminal);
}
foreach (var t2d in terminalsToDisconnect)
{
context.DisconnectTerminalFromConnectitityNode(t2d);
}
// Change terminal of ACLS 1 to point to ACLS 2 other end CN
context.ConnectTerminalToAnotherConnectitityNode(acls1Terminal, acls2otherEndCn.ConnectivityNode);
}
else
{
// Cable are not the same, we need to add a susbstation to act as a junction
// Create muffe station
var st = new PhysicalNetworkModel.Substation();
st.mRID = Guid.NewGuid().ToString();
st.name = "Junction";
st.PSRType = "Junction";
addList.Add(st);
// Create voltage level
var vl = new PhysicalNetworkModel.VoltageLevel();
vl.mRID = Guid.NewGuid().ToString();
vl.BaseVoltage = acls1.BaseVoltage;
vl.name = "VL";
vl.EquipmentContainer1 = new VoltageLevelEquipmentContainer()
{
@ref = st.mRID
};
addList.Add(vl);
// Relate cn to voltage level
if (_mappingContext.ConnectivityNodeToVoltageLevel.ContainsKey(cn))
{
_mappingContext.ConnectivityNodeToVoltageLevel.Remove(cn);
}
_mappingContext.ConnectivityNodeToVoltageLevel.Add(cn, vl);
}
}
// <> 2 kabler
else
{
// Create muffe station
var st = new PhysicalNetworkModel.Substation();
st.mRID = Guid.NewGuid().ToString();
st.name = "MUFFE";
st.PSRType = "Junction";
addList.Add(st);
// Create voltage level
var vl = new PhysicalNetworkModel.VoltageLevel();
vl.mRID = Guid.NewGuid().ToString();
vl.BaseVoltage = cnNeighborsx[0].BaseVoltage;
vl.name = "VL";
vl.EquipmentContainer1 = new VoltageLevelEquipmentContainer()
{
@ref = st.mRID
};
addList.Add(vl);
// Relate cn to voltage level
if (_mappingContext.ConnectivityNodeToVoltageLevel.ContainsKey(cn))
{
_mappingContext.ConnectivityNodeToVoltageLevel.Remove(cn);
}
_mappingContext.ConnectivityNodeToVoltageLevel.Add(cn, vl);
}
}
}
}
// return objects, except the one dropped
foreach (var inputObj in input)
{
if (!dropList.Contains(inputObj))
{
yield return(inputObj);
}
}
// yield added objects,
foreach (var inputObj in addList)
{
yield return(inputObj);
}
}
public static IList <IGeometry> GetContours(ref DotSpatial.Data.Raster rst, double[] x, double[] y, double zlev)
{
List <LineString> lsList = new List <LineString>();
bool ipari, jpari;
double[] xx = new double[3];
double[] yy = new double[3];
double[] zz = new double[3];
for (int j = 0; j < rst.NumColumns - 1; j++)
{
if (((int)((double)j / 2.0)) * 2 == j)
{
jpari = true;
}
else
{
jpari = false;
}
for (int i = 0; i < rst.NumRows - 1; i++)
{
if (((int)((double)i / 2.0)) * 2 == i)
{
ipari = true;
}
else
{
ipari = false;
}
if (!jpari && !ipari || jpari && ipari)
{
xx[0] = x[j];
yy[0] = y[i];
zz[0] = rst.Value[i, j];
xx[1] = x[j];
yy[1] = y[i + 1];
zz[1] = rst.Value[i + 1, j];
xx[2] = x[j + 1];
yy[2] = y[i];
zz[2] = rst.Value[i, j + 1];
{
Coordinate[] c = Intersect(xx, yy, zz, zlev);
if (c != null)
{
lsList.Add(new LineString(c));
}
}
xx[0] = x[j + 1];
yy[0] = y[i];
zz[0] = rst.Value[i, j + 1];
xx[1] = x[j];
yy[1] = y[i + 1];
zz[1] = rst.Value[i + 1, j];
xx[2] = x[j + 1];
yy[2] = y[i + 1];
zz[2] = rst.Value[i + 1, j + 1];
{
Coordinate[] c = Intersect(xx, yy, zz, zlev);
if (c != null)
{
lsList.Add(new LineString(c));
}
}
}
if (jpari && !ipari || !jpari && ipari)
{
xx[0] = x[j];
yy[0] = y[i];
zz[0] = rst.Value[i, j];
xx[1] = x[j];
yy[1] = y[i + 1];
zz[1] = rst.Value[i + 1, j];
xx[2] = x[j + 1];
yy[2] = y[i + 1];
zz[2] = rst.Value[i + 1, j + 1];
{
Coordinate[] c = Intersect(xx, yy, zz, zlev);
if (c != null)
{
lsList.Add(new LineString(c));
}
}
xx[0] = x[j];
yy[0] = y[i];
zz[0] = rst.Value[i, j];
xx[1] = x[j + 1];
yy[1] = y[i + 1];
zz[1] = rst.Value[i + 1, j + 1];
xx[2] = x[j + 1];
yy[2] = y[i];
zz[2] = rst.Value[i, j + 1];
{
Coordinate[] c = Intersect(xx, yy, zz, zlev);
if (c != null)
{
lsList.Add(new LineString(c));
}
}
}
}
}
LineMerger lm = new LineMerger();
lm.Add(lsList);
IList <IGeometry> merged = (IList <IGeometry>)lm.GetMergedLineStrings();
return(merged);
}
private Geometry ComputeHull(IList <QuadEdgeTriangle> tris)
{
var quadEdgeTriangleList = new SortedList <QuadEdge, QuadEdgeTriangle>(new QuadEdgeComparer());
foreach (var triangle in tris)
{
CheckMaxEdgeAndListBorderTriangles(quadEdgeTriangleList, triangle);
}
while (quadEdgeTriangleList.Count != 0)
{
var triangle = quadEdgeTriangleList.Last();
var edge = triangle.Key;
Debug.WriteLine(triangle.Value);
quadEdgeTriangleList.Remove(edge);
if (edge.Length < _tolerance)
{
break;
}
if (!RemovalGivesRegularPolygon(triangle.Value))
{
continue;
}
var neighbours = triangle.Value.GetNeighbours();
triangle.Value.Kill();
foreach (var neighbour in from n in neighbours
where n != null && n.IsLive()
select n)
{
Debug.WriteLine(neighbour);
CheckMaxEdgeAndListBorderTriangles(quadEdgeTriangleList, neighbour);
}
}
var lineMerger = new LineMerger();
var fact = _geom.Factory;
foreach (var triangle in tris)
{
if (!triangle.IsLive())
{
continue;
}
for (int i = 0; i < 3; i++)
{
if (triangle.GetAdjacentTriangleAcrossEdge(i)?.IsLive() != true)
{
lineMerger.Add(triangle.GetEdge(i).ToLineSegment().ToGeometry(fact));
}
}
}
var mergedLine = (LineString)lineMerger.GetMergedLineStrings().FirstOrDefault();
if (mergedLine?.IsRing ?? false)
{
var concaveHull = fact.CreatePolygon(mergedLine.CoordinateSequence);
return(concaveHull);
}
else
{
throw new TopologyException("Can't generate a hull.");
}
}