Index: /issm/trunk-jpl/src/m/classes/mask.js
===================================================================
--- /issm/trunk-jpl/src/m/classes/mask.js	(revision 21154)
+++ /issm/trunk-jpl/src/m/classes/mask.js	(revision 21155)
@@ -19,9 +19,9 @@
 			fielddisplay(this,"ice_levelset","presence of ice if < 0, icefront position if = 0, no ice if > 0");
 		} //}}}
-        this.extrude = function(md) {//{{{
-            this.groundedice_levelset=project3d(md,'vector',this.groundedice_levelset,'type','node');
-            this.ice_levelset=project3d(md,'vector',this.ice_levelset,'type','node');
-            return this;
-        }//}}}
+		this.extrude = function(md) {//{{{
+			this.groundedice_levelset=project3d(md,'vector',this.groundedice_levelset,'type','node');
+			this.ice_levelset=project3d(md,'vector',this.ice_levelset,'type','node');
+			return this;
+		}//}}}
 		this.classname = function () { //{{{
 			return "mask";
@@ -39,20 +39,4 @@
 				console.log('no ice front provided');
 			}
-				
-			var icefront=NewArrayFill(md.mesh.numberofelements,0);
-			for(var i=0;i<md.mesh.numberofelements;i++){
-				for(var j=0;j<md.mesh.elements[0].length;j++){
-					icefront[i]+=(md.mask.ice_levelset[md.mesh.elements[i][j]-1]==0);
-				}
-			}
-			if ((ArrayMax(icefront)==3 & (md.mesh.elementtype() == 'Tria')) | (ArrayMax(icefront)==6 & md.mesh.elementtype() == 'Penta')){
-				if (md.mesh.elementtype()=='Tria'){
-					var pos=ArrayFindEqual(icefront,3); numberemptyelements=pos.length;
-				}
-				else if (md.mesh.elementtype() == 'Penta'){
-					var pos=ArrayFindEqual(icefront,6); numberemptyelements=pos.length;
-				}
-				throw Error(sprintf(" %i have all nodes on ice front, change md.mask.ice_levelset to fix it",numberemptyelements));
-			}
 		} // }}}
 		this.marshall=function(md,prefix,fid) { //{{{
Index: /issm/trunk-jpl/src/m/classes/mask.m
===================================================================
--- /issm/trunk-jpl/src/m/classes/mask.m	(revision 21154)
+++ /issm/trunk-jpl/src/m/classes/mask.m	(revision 21155)
@@ -48,8 +48,4 @@
 				disp('WARNING: no ice front provided');
 			end
-			icefront=sum(md.mask.ice_levelset(md.mesh.elements)==0,2);
-			if (max(icefront)==3 & strcmp(elementtype(md.mesh),'Tria')) | (max(icefront==6) & strcmp(elementtype(md.mesh),'Penta')),
-				error('At least one element has all nodes on ice front, change md.mask.ice_levelset to fix it')
-			end
 		end % }}}
 		function disp(self) % {{{
Index: /issm/trunk-jpl/src/m/classes/mask.py
===================================================================
--- /issm/trunk-jpl/src/m/classes/mask.py	(revision 21154)
+++ /issm/trunk-jpl/src/m/classes/mask.py	(revision 21155)
@@ -44,8 +44,4 @@
 			raise TypeError("no ice present in the domain")
 
-		icefront=numpy.sum(md.mask.ice_levelset[md.mesh.elements-1]==0,axis=1)
-		if (max(icefront)==3 and m.strcmp(md.mesh.elementtype(),'Tria')) or (max(icefront==6) and m.strcmp(md.mesh.elementtype(),'Penta')):
-			raise TypeError("At least one element has all nodes on ice front, change md.mask.ice_levelset to fix it")
-
 		return md
 	# }}}