Index: /issm/trunk-jpl/src/m/plot/plot_unit.py
===================================================================
--- /issm/trunk-jpl/src/m/plot/plot_unit.py	(revision 22344)
+++ /issm/trunk-jpl/src/m/plot/plot_unit.py	(revision 22345)
@@ -150,6 +150,9 @@
 			else:
 				triangles=mpl.tri.Triangulation(x,y,elements)
-			#tri=ax.tricontourf(triangles,data,colorlevels,cmap=cmap,norm=norm,alpha=alpha)
-			tri=ax.tricontourf(triangles,data,colorlevels,cmap=cmap,norm=norm,alpha=alpha,extend='both')
+				#tri=ax.tricontourf(triangles,data,colorlevels,cmap=cmap,norm=norm,alpha=alpha)
+			if options.exist('log'):
+				tri=ax.tricontourf(triangles,data,colorlevels,cmap=cmap,norm=norm,alpha=alpha)
+			else:
+				tri=ax.tricontourf(triangles,data,colorlevels,cmap=cmap,norm=norm,alpha=alpha,extend='both')
 			if edgecolor != 'None':
 				ax.triplot(x,y,elements,color=edgecolor)