hdfhx

Gateway to HDF external data (HX) interface

Syntax

[out1,...,outN] = hdfhx(funcstr,input1,...,inputN)


Description

hdfhx is the MATLAB^® gateway to the HDF interface for manipulating linked and external data elements.

[out1,...,outN] = hdfhx(funcstr,input1,...,inputN) returns one or more outputs corresponding to the HX function in the HDF library specified by functstr.

There is a one-to-one correspondence between HX functions in the HDF library and valid values for funcstr. For example, hdfhx('setdir',pathname); corresponds to the C library call HXsetdir(pathname).

Functions

Value of funcstr	Function Syntax	Description
'create'	access_id = hdfhx('create',file_id,tag,ref,extern_name,offset,length)	Creates a new external file special data element.
'setcreatedir'	status = hdfhx('setcreatedir',pathname);	Sets the directory location for writing external file.
'setdir'	status = hdfhx('setdir',pathname);	Sets the directory for locating external files. pathname can contain multiple directories separated by vertical bars.

Input/Output Arguments

A status or identifier output of -1 indicates that the operation failed.

In cases where the HDF C library accepts NULL for certain inputs, an empty matrix ([] or '') can be used.