Grid/
numbisland.pro
recursive function.
for one given point on an island, check if its neighbors are on the same island
given a 2D land-sea mask, give a number to each island
numbisland
Grid
result = numbisland(mskin)
Return value
A 2d array with 0 on the ocean and a different number for each island
Parameters
mskin
in
required
type: 2D array of 0 and 1
land-sea mask with 0 on the land and 1 on the ocean
Examples
IDL> a = numbisland(tmask[*,*,0])
Version history
Version
$Id: numbisland.pro 325 2007-12-06 10:04:53Z pinsard $
History
Jan 2006: sebastien masson (smasson@locean-ipsl.upmc.fr)
Known issues
Restrictions
- mask must be periodic along the x direction.
- Periodicity along y direction is not taken into account
- must have less than ~32700 islands;
Produced by IDLdoc 2.0.
