A HDF Utilities

FreeForm ND includes three utilities for use with HDF (hierarchical data format) files: makehdf, splitdat, and pntshow. These programs were built using both the FreeForm library and the HDF library, which was developed at the National Center for Supercomputer Applications (NCSA).

The makehdf program converts binary and ASCII data files to HDF files and converts multiplexed band interleaved by pixel image files into a series of single parameter files. The splitdat program is used to separate and reformat data files containing headers and data into separate header and data files, or to translate them into HDF files. The pntshow program extracts point data from HDF files into binary or ASCII format.

It is assumed in this chapter that you have a working familiarity with HDF terminology and conventions. See the HDF user documentation for detailed information.

NOTE: Do not try the examples in this chapter. The example file set is

incomplete.

• A.1 makehdf
• A.1.1 Example
• A.2 splitdat
• A.2.1 Index Creation
• A.2.2 HDF Translation
• A.3 pntshow
• A.3.1 Extracting Headers and Data
• A.3.2 Extracting Data Only