ImportFromWKB Method (GeometryEngine)

In This Topic

Creates a geometry based on the contents of the input well-known binary buffer.

Syntax

Visual Basic (Declaration)
C#

Public Function ImportFromWKB( _
   ByVal importFlags As WkbImportFlags, _
   ByVal buffer() As Byte, _
   ByVal spatialReference As SpatialReference _
) As Geometry

public Geometry ImportFromWKB( 
   WkbImportFlags importFlags,
   byte[] buffer,
   SpatialReference spatialReference
)

Parameters

importFlags: A combination of WkbImportFlags which determines how the geometry is imported.
buffer: The well-known binary buffer. The buffer must be OGC compliant.
spatialReference: The spatial reference of the output geometry.

Return Value

A Geometry that corresponds to the buffer.

Example

Import and Export Geometries to well-known Binary

{
  // create a polyline
  List<Coordinate2D> coords = new List<Coordinate2D>
  {
    new Coordinate2D(0, 0),
    new Coordinate2D(0, 1),
    new Coordinate2D(1, 1),
    new Coordinate2D(1, 0)
  };

  polyline = PolylineBuilderEx.CreatePolyline(
              coords, SpatialReferences.WGS84);

  WkbExportFlags wkbExportFlags = WkbExportFlags.WkbExportDefaults;
  WkbImportFlags wkbImportFlags = WkbImportFlags.WkbImportDefaults;

  // export and import
  byte[] buffer = GeometryEngine.Instance.ExportToWKB(wkbExportFlags, polyline);
  geometry = GeometryEngine.Instance.ImportFromWKB(
                 wkbImportFlags, buffer, SpatialReferences.WGS84);
  Polyline importPolyline = geometry as Polyline;


  // alternatively, determine the size for the buffer
  int bufferSize = GeometryEngine.Instance.GetWKBSize(wkbExportFlags, polyline);
  buffer = new byte[bufferSize];
  // export
  bufferSize = GeometryEngine.Instance.ExportToWKB(
                  wkbExportFlags, polyline, ref buffer);
  // import
  importPolyline = GeometryEngine.Instance.ImportFromWKB(
           wkbImportFlags, buffer, SpatialReferences.WGS84) as Polyline;
}

Requirements

Target Platforms: Windows 11 Home, Pro, Enterprise (64 bit)

ArcGIS Pro version: 3.0 or higher.

Reference

GeometryEngine Class
GeometryEngine Members

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