User`s guide

Record and Structure Descriptions
The following tables describes the individual records and structures from which the SDF files are built.
Each table includes:
• A field index.
• A binary index.
• A description of each field.
• A description of the data type used in each field.
• The range of values for data in the field.
The fields in SDF records and structures use the following data types:
Char[n]: This data type consists of a series of ASCII-encoded bytes. [n] specifies the
number of bytes in the field.
Short:
This data type is used for integers (maximum range is −32768 to +32767).
Values are transferred as two-byte, binary encoded integers.
Long: This data type is also used for integers (but the maximum range is
−2,147,483,648 to +2,147,483,647). Values are stored as four-byte,
binary-encoded integers.
Float: This data type is used for single-precision fixed-point and floating-point
numbers. Values are stored in the 32-bit binary floating-point format.
Double:
This data type is used for double-precision fixed-point and floating-point
numbers. Values are stored using the 64-bit binary floating-point format.
Standard Data Format (SDF)
B-6