Index: /issm/trunk/src/m/model/plot/plot_gridded.m
===================================================================
--- /issm/trunk/src/m/model/plot/plot_gridded.m	(revision 10412)
+++ /issm/trunk/src/m/model/plot/plot_gridded.m	(revision 10413)
@@ -25,4 +25,7 @@
 %Interpolating data on grid
 [x_m y_m data_grid]=InterpFromMeshToGrid(elements,x,y,data,xlim(1),ylim(2),post,post,round(diff(ylim)/post),round(diff(xlim)/post),NaN);
+if size(data_grid,1)<3 | size(data_grid,2)<3,
+	error('data_grid size too small in plot_gridded, check posting and uni');
+end
 
 %Process data_grid: add white in NaN and correct caxis accordingly