Validate a Plot3D header: lower bound (>= 2 nodes per axis) and upper sanity caps (per-axis and total node count). Returns is_ok=.false. with a descriptive message on violation.
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| integer, | intent(in) | :: | ni | |||
| integer, | intent(in) | :: | nj | |||
| logical, | intent(out) | :: | is_ok | |||
| character(len=*), | intent(out) | :: | message |