added a note to the basemap.pcolor and basmap.pcolormesh methods, about dimension sizes of x, y, and data

Author: guziy

lib/mpl_toolkits/basemap/__init__.py

@@ -3336,6 +3336,10 @@ def pcolor(self,x,y,data,**kwargs):
 
         Other \**kwargs passed on to matplotlib.pyplot.pcolor (or tricolor if
         ``tri=True``).
+        
+        Note: (taken from matplotlib.pyplot.pcolor documentation)
+        Ideally the dimensions of x and y should be one greater than those of data; 
+        if the dimensions are the same, then the last row and column of data will be ignored.
         """
         ax, plt = self._ax_plt_from_kw(kwargs)
         # allow callers to override the hold state by passing hold=True|False
@@ -3396,7 +3400,7 @@ def pcolormesh(self,x,y,data,**kwargs):
         """
         Make a pseudo-color plot over the map
         (see matplotlib.pyplot.pcolormesh documentation).
-
+               
         If ``latlon`` keyword is set to True, x,y are intrepreted as
         longitude and latitude in degrees.  Data and longitudes are
         automatically shifted to match map projection region for cylindrical
@@ -3407,6 +3411,10 @@ def pcolormesh(self,x,y,data,**kwargs):
         Extra keyword ``ax`` can be used to override the default axis instance.
 
         Other \**kwargs passed on to matplotlib.pyplot.pcolormesh.
+        
+        Note: (taken from matplotlib.pyplot.pcolor documentation)
+        Ideally the dimensions of x and y should be one greater than those of data; 
+        if the dimensions are the same, then the last row and column of data will be ignored.
         """
         ax, plt = self._ax_plt_from_kw(kwargs)
         # allow callers to override the hold state by passing hold=True|False