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Chapter 6 8-Bit Raster Images (DFR8 API)

6.1 Chapter Overview

6.2 The 8-Bit Raster Data Model

6.2.1 Required 8-Bit Raster Image Data Set Objects

6.2.1.1 8-Bit Raster Image Data Representation

6.2.1.2 8-Bit Raster Image Dimension

6.2.2 Optional 8-Bit Raster Image Data Set Objects

6.2.2.1 Palettes

6.2.3 Compression Method

6.3 The 8-Bit Raster Image Interface

6.3.1 8-Bit Raster Image Library Routines

6.4 Writing 8-Bit Raster Images

6.4.1 Storing a Raster Image: DFR8putimage and DFR8addimage

6.4.2 Adding a Palette to an RIS8 Object: DFR8setpalette

6.4.3 Compressing 8-Bit Raster Image Data: DFR8setcompress

6.4.4 Specifying the Reference Number of an RIS8: DFR8writeref

6.5 Reading 8-Bit Raster Images

6.5.1 Reading a Raster Image: DFR8getimage

6.5.2 Querying the Dimensions of an 8-Bit Raster Image: DFR8getdims

6.5.3 Reading an Image with a Given Reference Number: DFR8readref

6.5.4 Specifying the Next 8-Bit Raster Image to be Read: DFR8restart

6.6 8-Bit Raster Image Information Retrieval Routines

6.6.1 Querying the Total Number of 8-Bit Raster Images: DFR8nimages

6.6.2 Determining the Reference Number of the Most-Recently-Accessed 8-Bit Raster Image: DFR8lastref

6.6.3 Determining the Reference Number of the Palette of the Most-Recently-Accessed 8-Bit Raster Image: DFR8getpalref

6.7 RIS8 Backward Compatibility Issues

6.7.1 Attribute "long_name" Included in HDF for netCDF Compatibility

6.7.2 Raster Image Group Implementation with New RIS8 Tags

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HDF User's Guide - 07/21/98, NCSA HDF Development Group.