Index: /issm/trunk-jpl/src/m/classes/model.m
===================================================================
--- /issm/trunk-jpl/src/m/classes/model.m	(revision 17810)
+++ /issm/trunk-jpl/src/m/classes/model.m	(revision 17811)
@@ -247,23 +247,8 @@
 			mesh.x=md.mesh.x2d;
 			mesh.y=md.mesh.y2d;
-			mesh.z=zeros(size(md.mesh.x2d));
 			mesh.numberofvertices=md.mesh.numberofvertices2d;
 			mesh.numberofelements=md.mesh.numberofelements2d;
 			mesh.elements=md.mesh.elements2d;
 			md.mesh=mesh;
-
-			%Keep a trace of lower and upper nodes
-			md.mesh.lowervertex=NaN;
-			md.mesh.uppervertex=NaN;
-			md.mesh.lowerelements=NaN;
-			md.mesh.upperelements=NaN;
-
-			%Remove old mesh 
-			md.mesh.x2d=NaN;
-			md.mesh.y2d=NaN;
-			md.mesh.elements2d=NaN;
-			md.mesh.numberofelements2d=md.mesh.numberofelements;
-			md.mesh.numberofvertices2d=md.mesh.numberofvertices;
-			md.mesh.numberoflayers=0;
 
 		end % }}}
Index: /issm/trunk-jpl/src/m/classes/model.py
===================================================================
--- /issm/trunk-jpl/src/m/classes/model.py	(revision 17810)
+++ /issm/trunk-jpl/src/m/classes/model.py	(revision 17811)
@@ -803,5 +803,4 @@
 		mesh.x=md.mesh.x2d
 		mesh.y=md.mesh.y2d
-		mesh.z=numpy.zeros_like(md.mesh.x2d)
 		mesh.numberofvertices=md.mesh.numberofvertices2d
 		mesh.numberofelements=md.mesh.numberofelements2d
@@ -809,18 +808,4 @@
 		md.mesh=mesh
 
-		#Keep a trace of lower and upper nodes
-		md.mesh.lowervertex=numpy.nan
-		md.mesh.uppervertex=numpy.nan
-		md.mesh.lowerelements=numpy.nan
-		md.mesh.upperelements=numpy.nan
-
-		#Remove old mesh 
-		md.mesh.x2d=numpy.nan
-		md.mesh.y2d=numpy.nan
-		md.mesh.elements2d=numpy.nan
-		md.mesh.numberofelements2d=md.mesh.numberofelements
-		md.mesh.numberofvertices2d=md.mesh.numberofvertices
-		md.mesh.numberoflayers=0
-
 		return md