ArcObjects Library Reference (GeoAnalyst)

ISurfaceOp.Contour Method

Creates contours or isolines based off of a constant interval from a base contour.

[Visual Basic .NET]
Public Function Contour ( _
    ByVal GeoDataset As IGeoDataset, _
    ByVal interval As Double, _
    [ByRef base As Object] _
) As IGeoDataset

[C#]
public IGeoDataset Contour (
    IGeoDataset GeoDataset,
    double interval,
    ref object base
);

[C#]

Optional Values

base To indicate that this parameter is undefined, first define a variable object Missing=Type.Missing; then pass this in as ref Missing.

[C++]
HRESULT Contour(
  IGeoDataset* GeoDataset,
  double interval,
  VARIANT* base,
  IGeoDataset** outGeoDataset
);

[C++]

Parameters
GeoDataset [in]

  GeoDataset is a parameter of type IGeoDataset
interval [in]
  interval is a parameter of type double
base [optional]
  base is a parameter of type VARIANT

  To indicate this parameter is undefined pass a reference to a VARIANT with type VT_ERROR and scode value of DISP_E_PARAMNOTFOUND.
outGeoDataset [out, retval]

  outGeoDataset is a parameter of type IGeoDataset

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Remarks

geoDataset	an input Raster, RasterDataset, RasterBand, or RasterDescriptor to be contoured
interval	the contour interval to be used. This can be any positive number
[base]	the value from which to begin generation of contours. Contours are generated above and below this value as needed to cover the entire value range of the geoData. If none is specified, then the contouring will begin at 0

The method returns a reference to a FeatureClass object.
Read the Working with ArcGIS Spatial Analyst objects technical document for general information on implementing Spatial Analyst operations.

ISurfaceOp.Contour Method

Product Availability

Remarks

See Also