ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.Geometry Namespace / IGeometryEngine Interface / ExportToWKT Method
A combination of WktExportFlags which determines how the geometry is exported.
The input geometry to write to a string.
Example

In This Topic
    ExportToWKT Method (IGeometryEngine)
    In This Topic
    Writes an OGC well-known text formatted version of the input geometry to a string.
    Syntax

    Parameters

    exportFlags
    A combination of WktExportFlags which determines how the geometry is exported.
    geometry
    The input geometry to write to a string.

    Return Value

    An OCG well-known text format of the input geometry.
    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. Also, note that if the geometry contains ID information, this property will not be preserved in the export operation. The WKT OGC standard does not contain the ID property.
    Example
    Import and Export Geometries to well-known Text
    // create a point with z, m
    MapPoint point = MapPointBuilderEx.CreateMapPoint(
             100, 200, 300, 400, SpatialReferences.WebMercator);
    
    // set the flags
    WktExportFlags wktExportFlags = WktExportFlags.WktExportDefaults;
    WktImportFlags wktImportFlags = WktImportFlags.WktImportDefaults;
    
    // export and import
    string wktString = GeometryEngine.Instance.ExportToWKT(wktExportFlags, point);
    MapPoint importPoint = GeometryEngine.Instance.ImportFromWKT(
          wktImportFlags, wktString, SpatialReferences.WebMercator) as MapPoint;
    
    double x = importPoint.X;       // x = 100
    double y = importPoint.Y;       // y = 200
    bool hasZ = importPoint.HasZ;   // hasZ = true
    double z = importPoint.Z;       // z = 300
    bool hasM = importPoint.HasM;   // hasM = true
    double m = importPoint.M;       // m = 400
    
    // export without z
    WktExportFlags exportFlagsNoZ = WktExportFlags.WktExportStripZs;
    wktString = GeometryEngine.Instance.ExportToWKT(exportFlagsNoZ, point);
    importPoint = GeometryEngine.Instance.ImportFromWKT(
      wktImportFlags, wktString, SpatialReferences.WebMercator) as MapPoint;
    
    x = importPoint.X;        // x = 100
    y = importPoint.Y;        // y = 200
    hasZ = importPoint.HasZ;  // hasZ = false
    z = importPoint.Z;        // z = 0
    hasM = importPoint.HasM;  // hasM = true
    m = importPoint.M;        // m = 400
    
    // export without m
    WktExportFlags exportFlagsNoM = WktExportFlags.WktExportStripMs;
    wktString = GeometryEngine.Instance.ExportToWKT(exportFlagsNoM, point);
    importPoint = GeometryEngine.Instance.ImportFromWKT(
      wktImportFlags, wktString, SpatialReferences.WebMercator) as MapPoint;
    
    x = importPoint.X;        // x = 100
    y = importPoint.Y;        // y = 200
    hasZ = importPoint.HasZ;  // hasZ = true
    z = importPoint.Z;        // z = 300
    hasM = importPoint.HasM;  // hasM = false
    m = importPoint.M;        // m = Nan
    
    // export without z, m
    wktString = GeometryEngine.Instance.ExportToWKT(
      exportFlagsNoZ | exportFlagsNoM, point);
    importPoint = GeometryEngine.Instance.ImportFromWKT(
      wktImportFlags, wktString, SpatialReferences.WebMercator) as MapPoint;
    
    x = importPoint.X;        // x = 100
    y = importPoint.Y;        // y = 200
    hasZ = importPoint.HasZ;  // hasZ = false
    z = importPoint.Z;        // z = 0
    hasM = importPoint.HasM;  // hasM = false
    m = importPoint.M;        // m = Nan
    
    Requirements

    Target Platforms: Windows 11, Windows 10, Windows 8.1

    See Also