The HDF_SD_REFTOINDEX function returns a scientific dataset’s index given its reference number and SD interface ID.

Examples

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; Initialize the SD interface:

SDinterface_id = HDF_SDSTART('demo.hdf')

; Define the reference number for which we want to search:

Reference_number = 66

; Return the index number:

index = HDF_SD_REFTOINDEX(SDinterface_id, Reference_number)

; Now the dataset can be accessed:

SDdataset_id = HDF_SD_SELECT(SDinterface_id, index)

; End access:

HDF_SD_ENDACCESS,SDdataset_id

HDF_SD_END, SDinterface_id

Syntax

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Result = HDF_SD_REFTOINDEX(SDinterface_id, Reference_number)

Return Value

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Returns the index number associated with the specified SD dataset.

Arguments

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SDinterface_id

An SD interface ID as returned by HDF_SD_START.

Reference_number

The SD reference number for the desired dataset.

Keywords

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None

Version History

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4.0	Introduced

See Also

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HDF_SD_IDTOREF, HDF_SD_NAMETOINDEX