Geometry.FromWellKnownBinary Methods
Initializes a new Geometry instance from a WKB representation.
Thread safety: This method is not thread-safe.
Overload List
| Name | Description | |
|---|---|---|
 Public method | FromWellKnownBinary(System.IO.Stream stream) | Initializes a new Geometry instance from a WKB representation. |
| Public method | FromWellKnownBinary(System.IO.Stream stream, System.Boolean switchXY) | Initializes a new Geometry instance from a WKB representation with the ability to swap the X and Y properties. |
FromWellKnownBinary(System.IO.Stream stream)
Initializes a new Geometry instance from a WKB representation.Syntax
public static Geometry FromWellKnownBinary (
System.IO.Stream stream
)Parameters
data
Pointer to the first byte of WKB data.
length
The number of bytes to read.
stream
Type: Byte sequence
The WKB data.
The WKB data.
Return Value
Type: Geometry
A new geometry instance initialized from the specified data or a null reference if the data contains an unsupported WKB geometry.
A new geometry instance initialized from the specified data or a null reference if the data contains an unsupported WKB geometry.
FromWellKnownBinary(System.IO.Stream stream, System.Boolean switchXY)
Initializes a new Geometry instance from a WKB representation with the ability to swap the X and Y properties.Syntax
public static Geometry FromWellKnownBinary (
System.IO.Stream stream,
System.Boolean switchXY
)Parameters
data
Pointer to the first byte of WKB data.
length
The number of bytes to read.
switchXY
Type: System.Boolean
If set to true, the created feature will have swapped the values of the properties X and Y.
If set to true, the created feature will have swapped the values of the properties X and Y.
stream
Type: Byte sequence
The WKB data.
The WKB data.
Return Value
Type: Geometry
A new geometry instance initialized from the specified data or a null reference if the data contains an unsupported WKB geometry.
A new geometry instance initialized from the specified data or a null reference if the data contains an unsupported WKB geometry.
Remarks
This method can be used to re-create a Geometry from a WKB (Well Known Binary) representation.
Carmenta Engine can only parse WKB points, line strings, polygons, multi points, multi- line strings, multi polygons and multi geometries. FromWellKnownBinary will return a null reference if the data contains an unsupported WKB geometry type, for example a TIN or a curve.
Trying to parse an incorrectly formatted WKB representation will result in an exception.
Note
Carmenta Engine can parse WKB representations that include m-coordinates but the m-coordinates will be ignored.
Platforms
Windows, Linux, Android