CDF_OPEN
========

The CDF_OPEN function opens an existing Common Data Format file.

Examples

id = CDF_OPEN('open_close.cdf')   ; Open a file.

; ... other CDF_ commands ...

CDF_CLOSE, id ; Close the cdf file.

Syntax

Result = CDF_OPEN(Filename [, /READONLY] )

Return Value

If successful, the CDF ID for the file is returned.

Arguments

Filename

A scalar string containing the name of the file to be created. Note that if 
the desired filename has a .cdf ending, you can omit the extension and specify 
just the first part of the filename. For example, specifying “mydata” would 
open the file mydata.cdf.

Keywords

READONLY

Set this keyword to open the specified CDF file in readonly mode. Opening a 
file in readonly mode will result in significant performance improvement if 
there is a large amount of metadata and a large portion of the metadata is read.

Version History

Pre 4.0

Introduced

7.0.3

READONLY keyword added

© 2015 Exelis Visual Information Solutions, Inc., a subsidiary of Harris 
Corporation. All Rights Reserved. This information is not subject to the 
controls of the International Traffic in Arms Regulations (ITAR) or the Export 
Administration Regulations (EAR). However, this information may be restricted 
from transfer to various embargoed countries under U.S. laws and regulations.