| Section 3, Octet 72 - for grid templates 0-3, 40-43 and 204 Section 3, Octet 60 - for grid templates 10 Section 3, Octet 65 - for grid template 20, 30 and 31 Section 3, Octet 66 - for grid template 90 Section 3, Octet 57 - for grid template 110 Section 3, Octet 39 - for grid template 120 Section 3, Octet 51 - for grid templates 1000 and 1100 (Does not apply to grid templates 50-53, 100, and 1200) |
| Bit Number | Value |
Meaning |
|---|---|---|
| 1 |
0 |
Points in the first row or
column scan in the +i (+x) direction |
| 1 |
Points in the first row or column scan in the -i (-x) direction | |
| 2 |
0 |
Points in the first row or column scan in the -j (-y) direction |
| 1 |
Points in the first row or column scan in the +j (+y) direction | |
| 3 |
0 |
Adjacent points in the i (x)
direction are consecutive |
| 1 |
Adjacent points in the j (y) direction are consecutive | |
| 4 |
0 |
All rows scan in the same
direction |
| 1 |
Adjacent rows scan in the
opposite direction |
|
| 5-8 |
Reserved |
| Notes: 1. i direction - west to east along a parallel or left to right along an x-axis. 2. j direction - south to north along a meridian, or bottom to top along a y-axis. 3. If bit number 4 is set, the first row scan is defined by previous flags. |