shift half a grid point for climatology on map when using m_pcolor

ReleaseNotes

@@ -10,6 +10,7 @@ v1.48.5rc4 (2018-09-12)
 + add print preview and print menu command on map
 + add hypertext link in Command Window to download climatology file when is missing
 + add print/saveas menu on map with jpeg, png and epsc format
++ shift half a grid point for climatology on map when using m_pcolor
 
 v1.48.5rc2 (2018-09-06)
 + regression on labview read file: the use of lat_dec and lon_dec by default 

tsg_util/plot_map.m

@@ -129,7 +129,11 @@ if ~isempty( ind )
     
     % plot 2D climatogogy on map
     if strcmp(tsg.preference.map_climatology, 'on')
-      m_pcolor(lon, lat, climato(indLat, indLon));
+      % We shift half a grid point
+      dx = mean(diff(lon));
+      dy = mean(diff(lat)); 
+      m_pcolor(lon-dx/2,lat-dy/2, climato(indLat, indLon))
+      %m_pcolor(lon, lat, climato(indLat, indLon));
       shading flat;
       %colormap(m_colmap('jet','step',10));
       colorbar;