Index: /issm/trunk/src/m/utils/LatLong/mapll.m
===================================================================
--- /issm/trunk/src/m/utils/LatLong/mapll.m	(revision 2733)
+++ /issm/trunk/src/m/utils/LatLong/mapll.m	(revision 2734)
@@ -4,7 +4,14 @@
 %   latitude and longitude are in degrees.
 %   Hemisphere must be 'n' for north and 's' for south
+%   One can specify the standard parallel and centre meridians.
+%   Default values are (70,45) for northern hemisphere and (71,0) for southerm hemisphere.
 %
 %   Usage:
 %      [x,y]=mapll(latitude,longitude,hemisphere)
+%      [x,y]=mapll(latitude,longitude,hemisphere,parallel,meridien)
+%
+%   Example:
+%      [x,y]=mapll(lat,lon,'s')
+%      [x,y]=mapll(lat,lon,'n',71,39)
 %
 %   See also MAPXY, LL2XY
Index: /issm/trunk/src/m/utils/LatLong/mapxy.m
===================================================================
--- /issm/trunk/src/m/utils/LatLong/mapxy.m	(revision 2733)
+++ /issm/trunk/src/m/utils/LatLong/mapxy.m	(revision 2734)
@@ -2,8 +2,15 @@
 %MAPXY - compute latitude and longitude from x and y
 %
-%   hemisphere must be 1 for north and 0 for south
+%   hemisphere must be 'n' for north and 's' for south
+%   One can specify the standard parallel and center meridien.
+%   Default values are (70,45) for northern hemisphere and (71,0) for southerm hemisphere.
 %
 %   Usage:
 %      [latitude,longitude]=mapxy(x,y,hemisphere)
+%      [latitude,longitude]=mapxy(x,y,hemisphere,parallel,meridien)
+%
+%   Example:
+%      [lat,long]=mapxy(x,y,'s')
+%      [lat,long]=mapxy(x,y,'n',71,39)
 %
 %   See also MAPLL, LL2XY