public MultiPolycurve ReadMultiPolycurve(Stream stream)
{
using (BinaryReader reader = InitializeReader(stream))
{
ReadWkbType(reader, true,
out WkbGeometryType geometryType, out Ordinates ordinates);
bool reverseOrder = geometryType == WkbGeometryType.Polygon ||
geometryType == WkbGeometryType.MultiPolygon &&
!AssumeWkbPolygonsClockwise;
GeomBuilder geometryBuilder = new GeomBuilder(reverseOrder);
IEnumerable <Linestring> linestrings =
ReadLinestrings(reader, geometryType, ordinates, geometryBuilder);
return(new MultiPolycurve(linestrings));
}
}
private RingGroup ReadPolygonCore(BinaryReader reader, Ordinates ordinates)
{
int ringCount = checked ((int)reader.ReadUInt32());
if (ringCount > 0)
{
bool reverseOrder = !AssumeWkbPolygonsClockwise;
GeomBuilder geometryBuilder = new GeomBuilder(reverseOrder);
List <Linestring> rings =
ReadLinestringsCore(reader, ordinates, ringCount, geometryBuilder).ToList();
RingGroup result = new RingGroup(rings.First(), rings.Skip(1));
return(result);
}
// Allow empty?
return(null);
}
public Multipoint <IPnt> ReadMultiPoint(Stream stream)
{
using (BinaryReader reader = InitializeReader(stream))
{
ReadWkbType(reader, true,
out WkbGeometryType geometryType, out Ordinates ordinates);
if (geometryType != WkbGeometryType.MultiPoint)
{
throw new NotSupportedException(
$"Cannot read {geometryType} as point.");
}
int pointCount = checked ((int)reader.ReadUInt32());
var geometryBuilder = new GeomBuilder(false);
Multipoint <IPnt> multipoint =
ReadMultipointCore(reader, ordinates, pointCount, geometryBuilder);
return(multipoint);
}
}
