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IRasterGeometryProc.ProjectFast Method (ArcObjects .NET 10.7 SDK)
ArcObjects Help for .NET developers > ArcObjects Help for .NET developers > ArcObjects namespaces > DataSourcesRaster > ESRI.ArcGIS.DataSourcesRaster > Interfaces > IR > IRasterGeometryProc Interface > IRasterGeometryProc.ProjectFast Method
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IRasterGeometryProc.ProjectFast Method

Projects the input raster using a single polynomial fit to compute the adjustment between coordinate systems.

[Visual Basic .NET]
Public Sub ProjectFast ( _
    ByVal pNewSR As ISpatialReference, _
    ByVal resampleType As rstResamplingTypes, _
    [ByRef pCellsize As Object], _
    [ByVal pRaster As IRaster] _
public void ProjectFast (
    ISpatialReference pNewSR,
    rstResamplingTypes resampleType,
    ref object pCellsize,
    ref IRaster pRaster
HRESULT ProjectFast(
  ISpatialReference* pNewSR,
  rstResamplingTypes resampleType,
  Variant* pCellsize,
  IRaster* pRaster
pNewSR [in]

pNewSR is a parameter of type ISpatialReference* resampleType [in]
resampleType is a parameter of type rstResamplingTypes pCellsize [in, optional]
pCellsize is a parameter of type VARIANT* pRaster [in, optional]
pRaster is a parameter of type IRaster*

Product Availability

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


The ProjectFast method projects a raster to a new spatial reference with a specified cell size. ProjectFast method does not project a raster cell by cell, instead, this method divides the whole raster into 64 x 64 pixel blocks and projects a raster based on a piecewise polynomial transformation algorithm, whereby each block is transformed using a polynomial warp. Altough this method is not as accurate as the cell by cell projection (PROJECT command in ArcGrid´┐Ż), it is faster and accurate enough for most application and analysis.

See Also

IRasterGeometryProc Interface