wgrib2: -set_int2
Introduction
The -set_int2 option sets 2 octets to a
signed integer value which is commonly used by grib.
The integer must range from -32767 to 32767.
-set_int2 I J K
I = 1..7
J = 1..(section length-1)
K = -(2**15-1) .. (2**15-1)
would set
Section I, Octet J+0: if (K >= 0) (K >> 8) & 255
Section I, Octet J+0: if (K < 0) ((abs(K) >> 8 ) && 255) | 128
Section I, Octet J+3: abs(K) & 255;
The above is using C syntax.
Multiple integers can be set by making the third argument a colon seperated list.
Usage
-set_int2 SECTION STARTING_OCTET_LOCATION I-1:I-2:..:I-N
SECTION=0 .. 7
OCTET_LOCATION = 1..N
I-M = Mth integer
Example
See also:
-get_int
-set_byte
-set_hex
-set_ieee
-set_int
|