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Scientific Data Formats: Hierarchical Data Format |
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This function returns the index of the HDF GR raster image specified by the parameter gr_ref.
Result = HDF_GR_REFTOINDEX(gr_id, gr_ref)
Returns the index of the image if successful or FAIL (-1) otherwise.
HDF GR interface identifier returned by HDF_GR_START.
Reference number of the raster image.
None
IDL Online Help (March 06, 2007)