hdf (MATLAB Functions)

HDF interface

Syntax

```
hdf*(functstr,param1,param2,...)
```

Description

MATLAB provides a set of low-level functions that enable you to access the HDF4 library developed and supported by the National Center for Supercomputing Applications (NCSA). For information about HDF, see the NCSA HDF Web page at http://hdf.ncsa.uiuc.edu.

The following table lists all the HDF4 application programming interfaces (APIs) supported by MATLAB with the name of the MATLAB function used to access the API. To use these functions, you must be familiar with the HDF library.

Application Programming Interface
Description
MATLAB Function

Annotations

Stores, manages, and retrieves text used to describe an HDF file or any of the data structures contained in the file.
hdfan

General Raster Images

Stores, manages, and retrieves raster images, their dimensions and palettes. It can also manipulate unattached palettes.

Note: Use the MATLAB functions imread and imwrite with HDF raster image formats.
hdfdf24
hdfdfr8

HDF-EOS

Provides functions to read HDF-EOS grid (GD), point (PT), and swath (SW) data.
hdfgd
hdfpt
hdfsw

HDF Utilities

Provides functions to open and close HDF files and handle errors.
hdfh
hdfhd
hdfhe

MATLAB HDF Utilities

Provides utility functions that help you work with HDF files in the MATLAB environment.
hdfml

Scientific Data
Stores, manages, and retrieves multidimensional arrays of character or numeric data, along with their dimensions and attributes.
hdfsd

V Groups
Creates and retrieves groups of other HDF data objects, such as raster images or V data.
hdfv

V Data
Stores, manages, and retrieves multivariate data stored as records in a table.
hdfvf
hdfvh
hdfvs

Application Programming Interface	Description	MATLAB Function
Annotations	Stores, manages, and retrieves text used to describe an HDF file or any of the data structures contained in the file.	hdfan
General Raster Images	Stores, manages, and retrieves raster images, their dimensions and palettes. It can also manipulate unattached palettes. Note: Use the MATLAB functions `imread` and `imwrite` with HDF raster image formats.	hdfdf24 hdfdfr8
HDF-EOS	Provides functions to read HDF-EOS grid (GD), point (PT), and swath (SW) data.	hdfgd hdfpt hdfsw
HDF Utilities	Provides functions to open and close HDF files and handle errors.	`hdfh` `hdfhd` `hdfhe`
MATLAB HDF Utilities	Provides utility functions that help you work with HDF files in the MATLAB environment.	`hdfml`
Scientific Data	Stores, manages, and retrieves multidimensional arrays of character or numeric data, along with their dimensions and attributes.	hdfsd
V Groups	Creates and retrieves groups of other HDF data objects, such as raster images or V data.	hdfv
V Data	Stores, manages, and retrieves multivariate data stored as records in a table.	`hdfvf` `hdfvh` hdfvs

See Also

hdf5read, hdfread, hdfinfo, imread

hankel hdf5