EsriShapeExportFlags Enumeration

In This Topic

Specifies the flags that control the behavior of the GeometryEngine.ExportToEsriShape and GeometryEngine.ExportToEsriShape methods.

Syntax

C#
Visual Basic (Declaration)

public enum EsriShapeExportFlags : System.Enum, System.IComparable, System.IConvertible, System.IFormattable, System.ISpanFormattable

Public Enum EsriShapeExportFlags 
   Inherits System.Enum
   Implements System.IComparable, System.IConvertible, System.IFormattable, System.ISpanFormattable

Members

Member	Description
EsriShapeExportAngularDensify	Exports densified versions of non-linear segments. Generates new vertices at constant angles along those segments.
EsriShapeExportDefaults	Exports curves, Z-values, and M-values. Performs byte swapping if the current platform architecture is big-endian.
EsriShapeExportDistanceDensify	Exports densified versions of non-linear segments. Generates new vertices using a Douglas-Peucker style algorithm.
EsriShapeExportNoCompress	Does not compress the output shapefile buffer.
EsriShapeExportNoSwap	Does not perform byte swapping on the output shapefile buffer.
EsriShapeExportStripMaterials	Removes materials attributes from exported multipatch.
EsriShapeExportStripMs	Removes M values from exported shape.
EsriShapeExportStripNormals	Removes normals from exported multipatch.
EsriShapeExportStripTextures	Removes textures from exported multipatch.
EsriShapeExportStripZs	Removes Z values from exported shape.
EsriShapeExportTrueNaNs	Exports undefined double precision values as true NaNs (IEEE Non-A-Number). The default is to use large, negative values.

Example

Import and Export Geometries to EsriShape

// create an envelope
List<MapPoint> coordsZM = new List<MapPoint>
{
  MapPointBuilderEx.CreateMapPoint(1001, 1002, 1003, 1004),
  MapPointBuilderEx.CreateMapPoint(2001, 2002, Double.NaN, 2004),
  MapPointBuilderEx.CreateMapPoint(3001, -3002, 3003, 3004),
  MapPointBuilderEx.CreateMapPoint(1001, -4002, 4003, 4004)
};

Envelope envelope = EnvelopeBuilderEx.CreateEnvelope(
           coordsZM[0], coordsZM[2], SpatialReferences.WGS84);

// export and import
EsriShapeExportFlags exportFlags = EsriShapeExportFlags.EsriShapeExportDefaults;
EsriShapeImportFlags importFlags = EsriShapeImportFlags.EsriShapeImportDefaults;
byte[] buffer = GeometryEngine.Instance.ExportToEsriShape(exportFlags, envelope);
Polygon importedPolygon = GeometryEngine.Instance.ImportFromEsriShape(
               importFlags, buffer, envelope.SpatialReference) as Polygon;
Envelope importedEnvelope = importedPolygon.Extent;

// export without z,m
buffer = GeometryEngine.Instance.ExportToEsriShape(
        EsriShapeExportFlags.EsriShapeExportStripZs | 
        EsriShapeExportFlags.EsriShapeExportStripMs, envelope);
importedPolygon = GeometryEngine.Instance.ImportFromEsriShape(
        importFlags, buffer, SpatialReferences.WGS84) as Polygon;
importedEnvelope = importedPolygon.Extent;

bool hasZ = importedEnvelope.HasZ;      // hasZ = false
bool hasM = importedEnvelope.HasM;      // hasM = false

// export with shapeSize
int bufferSize = GeometryEngine.Instance.GetEsriShapeSize(
                                       exportFlags, envelope);
buffer = new byte[bufferSize];

bufferSize = GeometryEngine.Instance.ExportToEsriShape(
                             exportFlags, envelope, ref buffer);
importedPolygon = GeometryEngine.Instance.ImportFromEsriShape(
                    importFlags, buffer, envelope.SpatialReference) as Polygon;
importedEnvelope = importedPolygon.Extent;


// or use the envelope and envelopeBuilderEx classes
buffer = envelope.ToEsriShape();
// buffer represents a polygon as there is not an envelope Esri shape buffer
// EnvelopeBuilderEx.FromEsriShape takes a polygon Esri shape buffer and returns the extent of the polygon.
importedEnvelope = EnvelopeBuilderEx.FromEsriShape(buffer);

Inheritance Hierarchy

System.Object
   System.ValueType
      System.Enum
         ArcGIS.Core.Geometry.EsriShapeExportFlags

Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.

Reference

ArcGIS.Core.Geometry Namespace

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