Class GeometryFromWKB
Converts Well-known Binary representations to a Geometry instance.
Inheritance
Inherited Members
Namespace: Mapsui.Geometries.WellKnownBinary
Assembly: Mapsui.Geometries.dll
Syntax
public static class GeometryFromWKB
Remarks
The Well-known Binary Representation for Geometry (WKBGeometry) provides a portable representation of a Geometry value as a contiguous stream of bytes. It permits Geometry values to be exchanged between an ODBC client and an SQL database in binary form.
The Well-known Binary Representation for Geometry is obtained by serializing a Geometry instance as a sequence of numeric types drawn from the set {Unsigned Integer, Double} and then serializing each numeric type as a sequence of bytes using one of two well defined, standard, binary representations for numeric types (NDR, XDR). The specific binary encoding (NDR or XDR) used for a geometry byte stream is described by a one byte tag that precedes the serialized bytes. The only difference between the two encodings of geometry is one of byte order, the XDR encoding is Big Endian, the NDR encoding is Little Endian.
Methods
| Improve this Doc View SourceParse(Byte[])
Creates a Geometry from the supplied byte[] containing the Well-known Binary representation.
Declaration
public static Geometry Parse(byte[] bytes)
Parameters
Type | Name | Description |
---|---|---|
System.Byte[] | bytes | byte[] containing the Well-known Binary representation. |
Returns
Type | Description |
---|---|
Geometry | A Geometry bases on the supplied Well-known Binary representation. |
Parse(BinaryReader)
Creates a Geometry based on the Well-known binary representation.
Declaration
public static Geometry Parse(BinaryReader reader)
Parameters
Type | Name | Description |
---|---|---|
System.IO.BinaryReader | reader | A System.IO.BinaryReader used to read the Well-known binary representation. |
Returns
Type | Description |
---|---|
Geometry | A Geometry based on the Well-known binary representation. |