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HDF User’s GuideVersion 4.2.7 |
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Chapter 1 - Introduction to HDFFIGURE 1a HDF Data Structures 2FIGURE 1b Three Levels of Interaction with the HDF File 3Chapter 2 - HDF FundamentalsFIGURE 2a The Physical Layout of an HDF File Containing One Data Object 7FIGURE 2b Two Data Objects 8FIGURE 2c The Contents of a Data Descriptor 8FIGURE 2d Data Descriptor Block 10FIGURE 2e Use of a Function Call Converter to Route FORTRAN-77 HDF Calls to the C Library 16Chapter 3 - Scientific Data Sets (SD API)FIGURE 3a The Contents of a Scientific Data Set 19FIGURE 3b An Example of Access Pattern ("Strides") 32FIGURE 3c Dimension Records and Attributes Shared Between Related Data Sets 92FIGURE 3d Chunk Indexing as an Offset in Chunks 119FIGURE 3e Array Locations Created Beyond the Defined Dimensions of an SDS 132Chapter 4 - Vdatas (VS API)FIGURE 4a Vdata Table Structure 137FIGURE 4b Three Different Vdata Structures for Data of the Same Number Type 138FIGURE 4c Single- and Multi-component Vdatas 150FIGURE 4d Interlaced and Non-Interlaced Vdata Contents 158FIGURE 4e Setting the Record Pointer to the End of a Vdata 161FIGURE 4f Writing Interlaced or Non-interlaced Buffers into Interlaced or Non-interlaced Vdatas 162FIGURE 4g Removing Alignment Bytes When Writing Data From a C Structure to a Vdata 168Chapter 5 - Vgroups (V API)FIGURE 5a Similarity of the HDF Vgroup Structure and the UNIX File System 209FIGURE 5b Sharing Data Objects among Vgroups 210FIGURE 5c A Vgroup Containing Two 8-Bit Raster Images, or RIS8 Objects, and a Vdata 210FIGURE 5d Vgroup Structure Describing a Heated Mesh 211Chapter 6 - 8-Bit Raster Images (DFR8 API)FIGURE 6a 8-Bit Raster Image Set Contents 259FIGURE 6b The Data Representation of an 8-Bit Raster Image 260Chapter 7 - 24-bit Raster Images (DF24 API)FIGURE 7a 24-Bit Raster Image Set Contents 277FIGURE 7b The Numerical Representation of a 24-Bit Raster Image 278FIGURE 7c RGB Interlace Format for 24-Bit Raster Images 279Chapter 8 - General Raster Images (GR API)FIGURE 8a GR Data Set Contents 293FIGURE 8b Chunks in a GR raster image dataset 348FIGURE 8c Chunked GR image as written by C example 351FIGURE 8d Chunked GR image as written by FORTRAN example 352Chapter 9 - Palettes (DFP API)FIGURE 9a Color Mapping Using a Palette 359Chapter 10 - Annotations (AN API)FIGURE 10a File and Object Annotations 368FIGURE 10b Object Annotations with Tag/Reference Number Pairs 368Chapter 11 - Single-file Annotations (DFAN API)Chapter 12 - Single-File Scientific Data Sets (DFSD API)FIGURE 12a The Contents of a Three-Dimensional DFSD Scientific Data Set 409Chapter 13 - Error ReportingChapter 14 - HDF Performance IssuesFIGURE 14a 1,000 1 x 1 x 1 Element Scientific Data Sets 438FIGURE 14b One 10 x 10 x 10 Element Scientific Data Set 439FIGURE 14c 1,000 1 x 1 x 1 Element Scientific Data Sets 440FIGURE 14d 1,000 1 x 1 x 1 Element Scientific Data Sets Sharing Dimensions 440FIGURE 14e 50 10 x 10 x 10 Element Scientific Data Sets 441FIGURE 14f Writing to the 50 10 x 10 x 10 Element Scientific Data Sets 442FIGURE 14g One 10,000 Element Scientific Data Set with Old- and New-Style Dimension Scales 443FIGURE 14h One 10,000 Element Scientific Data Set with the Old-Style Dimension Scale Disabled 443FIGURE 14i Comparison between Chunked and Non-chunked Scientific Data Sets 444FIGURE 14j Filling a Two-dimensional Array with Data Using Row-major Ordering 445FIGURE 14k Number of Seeks Needed to Access a Row of Data in a Non-chunked SDS 446FIGURE 14l Number of Seeks Needed to Access a Column of Data in a Non-chunked SDS 446FIGURE 14m Number of Seeks Needed to Access a Row of Data in a Chunked SDS 447FIGURE 14n Number of Seeks Needed to Access a Column of Data in a Chunked SDS 447FIGURE 14o Compressing and Writing Chunks of Data to a Compressed and Tiled SDS 448FIGURE 14p Extracting a Subset from a Compressed and Tiled SDS 448FIGURE 14q Extracting a Subset from a Compressed Non-tiled SDS 449FIGURE 14r Example 4 x 12 Element Scientific Data Set 450FIGURE 14s 2 x 8 Element Subset of the 4 x 12 Scientific Data Set 450FIGURE 14t 4 x 12 Element Data Set with 2 x 2 Element Tiles 451FIGURE 14u 5 200 x 300 Element Tiles Labelled A, B, C, D and E 452Chapter 15 - HDF Command-line UtilitiesFIGURE 15a The hdfimport Utility 464FIGURE 15b Structure of the GIF and HDF files 489Chapter 16 - Raw Data Information
HDF 4.2.7 - February 2012 Copyright |
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