Index: /issm/trunk/src/m/classes/public/plot/plot_unit.m
===================================================================
--- /issm/trunk/src/m/classes/public/plot/plot_unit.m	(revision 1260)
+++ /issm/trunk/src/m/classes/public/plot/plot_unit.m	(revision 1261)
@@ -16,14 +16,15 @@
 %element data
 if ~isongrid
+	pos=find(~isnan(data)); %needed fpr element on water
 	if is2d
-		A=elements(:,1); B=elements(:,2); C=elements(:,3); 
-		patch( 'Faces', [A B C], 'Vertices', [x y z],'CData', data(:),'FaceColor','flat','EdgeColor',edgecolor);
+		A=elements(pos,1); B=elements(pos,2); C=elements(pos,3); 
+		patch( 'Faces', [A B C], 'Vertices', [x y z],'CData', data(pos),'FaceColor','flat','EdgeColor',edgecolor);
 	else
-		A=elements(:,1); B=elements(:,2); C=elements(:,3); D=elements(:,4); E=elements(:,5); F=elements(:,6);
-		patch( 'Faces', [A B C], 'Vertices', [x y z],'CData', data(:),'FaceColor','flat','EdgeColor',edgecolor);
-		patch( 'Faces', [D E F], 'Vertices', [x y z],'CData', data(:),'FaceColor','flat','EdgeColor',edgecolor);
-		patch( 'Faces', [A B E D], 'Vertices', [x y z],'CData', data(:),'FaceColor','flat','EdgeColor',edgecolor);
-		patch( 'Faces', [B E F C ], 'Vertices', [x y z],'CData', data(:),'FaceColor','flat','EdgeColor',edgecolor);
-		patch( 'Faces', [C A D F ], 'Vertices', [x y z],'CData', data(:),'FaceColor','flat','EdgeColor',edgecolor);
+		A=elements(pos,1); B=elements(pos,2); C=elements(pos,3); D=elements(pos,4); E=elements(pos,5); F=elements(pos,6);
+		patch( 'Faces', [A B C], 'Vertices', [x y z],'CData', data(pos),'FaceColor','flat','EdgeColor',edgecolor);
+		patch( 'Faces', [D E F], 'Vertices', [x y z],'CData', data(pos),'FaceColor','flat','EdgeColor',edgecolor);
+		patch( 'Faces', [A B E D], 'Vertices', [x y z],'CData', data(pos),'FaceColor','flat','EdgeColor',edgecolor);
+		patch( 'Faces', [B E F C ], 'Vertices', [x y z],'CData', data(pos),'FaceColor','flat','EdgeColor',edgecolor);
+		patch( 'Faces', [C A D F ], 'Vertices', [x y z],'CData', data(pos),'FaceColor','flat','EdgeColor',edgecolor);
 	end
 %grid data