ArcGIS Pro 3.2 API Reference Guide
ArcGIS.Core.Geometry Namespace / GeometryEngine Class / GetWKBSize Method
A combination of WkbExportFlags which determines how the geometry is exported.
The geometry to export.
Example

In This Topic
    GetWKBSize Method (GeometryEngine)
    In This Topic
    Returns the size of the buffer in bytes that will be required to hold the OGC well-known binary version of the input geometry.
    Syntax
    Public Function GetWKBSize( _
       ByVal exportFlags As WkbExportFlags, _
       ByVal geometry As Geometry _
    ) As Integer

    Parameters

    exportFlags
    A combination of WkbExportFlags which determines how the geometry is exported.
    geometry
    The geometry to export.

    Return Value

    The size of the buffer.
    Exceptions
    ExceptionDescription
    Geometry is null or empty.
    The method is not implemented for GeometryBag or Multipatch.
    The method is not implemented for geometry with curves.
    Remarks
    Does not support curves.
    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 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 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, Windows 10

    ArcGIS Pro version: 3 or higher.
    See Also