UDF IDL Users Manual

The UDF IDL Interface is built around a small number of IDL registered routines together with a number of KEYWORDS. This section provides descriptions of the UDF interface routines presented in much the same manner as would be routines in an programmers manual. Routine input parameters which are encased in {} are optional inputs. A detailed description of both the available KEYWORDS and the returned IDL data structure are given in later sections.

The current UDF IDL interface routines are:

Routine Definition
UDF_CLOSE Frees all memory associated with a UDF source
UDF_JUMPTIME Jump to a specified time in a UDF file.
UDF_EOF Returns flag indicating if requested end time of data exceeded.
UDF_KEY Returns a UDF key for UDF source.
UDF_OPEN Opens a UDF data set and returns a pointer to the internal structure associated with it.
UDF_READ Returns a pointer to an IDL structure containing the UDF data acquired from the current read operation.
UDF_TIMES Returns a pointer to an IDL structure containing the start and stop times of all UDF files online for a specified source.
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Installation UDF_CLOSE