User`s guide

Table B-7. SDF_SCAN_STRUCT (Scan Structure record)
Field
Index
Binary
Index*
Field Name/Description
Data
Type
Range/
Units
1 1:2 recordType short 15
2 3:6 recordSize long variable
3 7:8 num_of_scan — number of times the instrument collected a
complete set of x- and y-axis vectors for all scan-based
data types.
short
1:(2
15
)−1
4 9:10 last_scan_index — index of the last valid scan short 0:(num_of_
scan)−1
5 11:12 scan_type — tells you how the vectors from different scans
are organized in the Y-axis Data record.
0=depth — all scans for the first data type’s vectors
followed by all scans for the second data type’s vectors,
and so on.
1=scan — all data type’s vectors for the first scan
followed by all data type’s vectors for the second scan,
and so on.
short 0:1
6 13:14 scanVar_type — tells you the size and format of each scan
variable value.
1=short (two-byte, binary-encoded integer)
2=long (four-byte, binary-encoded integer)
3=float (four-byte, binary floating-point number)
4=double (eight-byte, binary floating-point number)
short 1:4
7 15:36 scanUnit — engineering unit used for scan variables struct see
SDF_UNIT
Scan variable values start here.
*Bytes i.d. = instrument-dependent
Standard Data Format (SDF)
B-21