Index: /issm/trunk/src/m/model/plot/plot_overlay.m
===================================================================
--- /issm/trunk/src/m/model/plot/plot_overlay.m	(revision 7984)
+++ /issm/trunk/src/m/model/plot/plot_overlay.m	(revision 7985)
@@ -128,6 +128,7 @@
 %last step: mesh overlay?
 if exist(options,'edgecolor'),
+	hold on
 	A=elements(:,1); B=elements(:,2); C=elements(:,3); 
-	patch( 'Faces', [A B C], 'Vertices', [x y z],'FaceVertexCData', [1 1 1],'FaceColor','none','EdgeColor',getfieldvalue(options,'edgecolor'));
+	trisurf([A B C],x,y,z,'EdgeColor',getfieldvalue(options,'edgecolor'),'FaceColor','none')
 end