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- i NCSA HDF Specifications
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- Table of Contents i
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- National Center for Supercomputing Applications
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- March 1989
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- Table of Contents
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- Introduction
- Overview vii
- What Is HDF vii
- Use of This Manual ix
- Chapter 1 The Basic Structure of HDF Files
- Chapter Overview 1.1
- File Header 1.1
- Data Object 1.1
- Physical Organization of HDF Files 1.4
- Sample HDF File 1.4
- Chapter 2 The NCSA HDF General Purpose Interface
- Chapter Overview 2.1
- Introduction 2.1
- Opening and Closing Files 2.1
- Finding Tags, Refs, and Element Lengths 2.1
- Reading and Writing Entire Data Elements 2.2
- Reading and Writing Part of a Data Element 2.2
- Manipulating Data Descriptors (DDs) 2.2
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- Chapter 3 Sets and Groups
- Chapter Overview 3.1
- Sets 3.1
- Groups 3.2
- Raster Image Sets 3.4
- Scientific Datasets 3.6
- Chapter 4 HDF Conventions
- Chapter Overview 4.1
- Byte Order 4.1
- Naming and Assigning Tags 4.1
- Using Reference Numbers to Organize Data
- Objects 4.2
- Multiple References and File Compaction 4.3
- Chapter 5 Other Formats
- Chapter Overview 5.1
- File Formats 5.1
- Appendix A NCSA HDF Tags
- Appendix B Header Files
- Glossary
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- Figures and Tables
- Figure 1 Raster Image Sets in an HDF File viii
- Figure 1.1 Three Data Objects 1.1
- Figure 1.2 A Data Descriptor 1.2
- Figure 1.3 Model of a Data Descriptor Block 1.3
- Figure 1.4 Sample Data Descriptor Block 1.4
- Figure 1.5 Physical Representation of Data
- Objects╩╩1.5
- Figure 3.1 Physical Organization of Sample RIG
- Groupings 3.3
- Figure B.1 Fortran Header File: dfF.h B.2╨B.3
- Figure B.2 C Header File: df.h B.4╨B.8
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- Table 1.1 Parts of a Data Descriptor 1.2
- Table 1.2 Summary of the Relationships among
- Parts of an HDF File 1.4
- Table 1.3 Sample Data Objects in an HDF File 1.5
- Table 3.1 Tags for Raster-8 Sets 3.4
- Table 3.2 Tags for Raster Image Sets 3.5
- Table 3.3 Additional Tags for Raster Image Sets 3.6
- Table 3.4 Required Tags for Scientific Datasets 3.6
- Table 3.5 Optional Tags for Scientific Datasets 3.7
- Table 4.1 Sample Grouping of Data Objects in an
- HDF File 4.2
- Table A.1 Number Type Fields A.4
- Table A.2 Number Type Values A.4
- Table A.3 Possible Machine Types A.5
- Table A.4 Possible Tag Types in an RIG A.7
- Table A.5 Dimension Record Fields A.8
- Table A.6 Color Correction Field Types A.9
- Table A.7 Color Format String Values A.9
- Table A.8 Possible Tag Types in an SDG A.12
- Table A.9 Scientific Data Dimension Record
- Fields╩╩A.12
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