private static IMultiLineString ReadMultiLineString(JsonTextReader jreader)
{
if (jreader == null)
{
throw new ArgumentNullException("reader", "A valid JSON reader object is required.");
}
IMultiLineString lines = null;
if (jreader.TokenClass == JsonTokenClass.Array)
{
jreader.ReadToken(JsonTokenClass.Array);
List <ILineString> list = new List <ILineString>();
while (jreader.TokenClass == JsonTokenClass.Array)
{
list.Add(ReadLineString(jreader));
}
jreader.ReadToken(JsonTokenClass.EndArray);
lines = new NetTopologySuite.Geometries.MultiLineString(list.ToArray());
}
return(lines);
}
public static PolyLineM FromGeometryMultiLineString(NetTopologySuite.Geometries.MultiLineString multiLineString)
{
if (multiLineString == null)
{
throw new ArgumentNullException(nameof(multiLineString));
}
var boundingBox = new BoundingBox2D(
multiLineString.EnvelopeInternal.MinX,
multiLineString.EnvelopeInternal.MinY,
multiLineString.EnvelopeInternal.MaxX,
multiLineString.EnvelopeInternal.MaxY
);
var lineStrings = multiLineString
.Geometries
.Cast <NetTopologySuite.Geometries.LineString>()
.ToArray();
var offset = 0;
var parts = new int[lineStrings.Length];
for (var index = 0; index < lineStrings.Length; index++)
{
parts[index] = offset;
var line = lineStrings[index];
offset += line.NumPoints;
}
var points = lineStrings
.SelectMany(line => line.Coordinates)
.Select(coordinate => new Point(coordinate.X, coordinate.Y))
.ToArray();
var measures = multiLineString.GetOrdinates(NetTopologySuite.Geometries.Ordinate.M).ToArray();
return(new PolyLineM(boundingBox, parts, points, measures));
}
public static Messages.RoadSegmentGeometry Translate(NetTopologySuite.Geometries.MultiLineString geometry)
{
if (geometry == null)
{
throw new ArgumentNullException(nameof(geometry));
}
var toMultiLineString = new Messages.LineString[geometry.NumGeometries];
var lineIndex = 0;
foreach (var fromLineString in geometry.Geometries.OfType <NetTopologySuite.Geometries.LineString>())
{
var toLineString = new Messages.LineString
{
Points = new Messages.Point[fromLineString.NumPoints],
Measures = fromLineString.GetOrdinates(NetTopologySuite.Geometries.Ordinate.M)
};
for (var pointIndex = 0; pointIndex < fromLineString.NumPoints; pointIndex++)
{
toLineString.Points[pointIndex] = new Messages.Point
{
X = fromLineString.CoordinateSequence.GetOrdinate(pointIndex, NetTopologySuite.Geometries.Ordinate.X),
Y = fromLineString.CoordinateSequence.GetOrdinate(pointIndex, NetTopologySuite.Geometries.Ordinate.Y)
};
}
toMultiLineString[lineIndex] = toLineString;
lineIndex++;
}
return(new Messages.RoadSegmentGeometry
{
SpatialReferenceSystemIdentifier = geometry.SRID,
MultiLineString = toMultiLineString
});
}