Index: /issm/trunk-jpl/src/m/classes/autodiff.py
===================================================================
--- /issm/trunk-jpl/src/m/classes/autodiff.py	(revision 13864)
+++ /issm/trunk-jpl/src/m/classes/autodiff.py	(revision 13865)
@@ -1,3 +1,4 @@
 #module imports
+import numpy
 from dependent import *
 from independent import *
@@ -111,5 +112,5 @@
 
 			for indep in self.independents:
-				if not isnan(indep.fos_forward_index):
+				if not numpy.isnan(indep.fos_forward_index):
 					index+=indep.fos_forward_index
 					break
@@ -129,5 +130,5 @@
 
 			for dep in self.dependents:
-				if not isnan(dep.fos_reverse_index):
+				if not numpy.isnan(dep.fos_reverse_index):
 					index+=dep.fos_reverse_index
 					break
Index: /issm/trunk-jpl/src/m/classes/dependent.py
===================================================================
--- /issm/trunk-jpl/src/m/classes/dependent.py	(revision 13864)
+++ /issm/trunk-jpl/src/m/classes/dependent.py	(revision 13865)
@@ -1,3 +1,4 @@
 import os.path
+import numpy
 from pairoptions import *
 from fielddisplay import *
@@ -5,5 +6,5 @@
 from EnumDefinitions import *
 from WriteData import *
-#from MeshProfileIntersection import *
+from MeshProfileIntersection import *
 
 class dependent(object):
@@ -44,5 +45,4 @@
 			#process the file and retrieve segments
 			mesh=options.getfieldvalue('mesh')
-			raise RuntimeError("MeshProfileIntersection is not complete.")
 			self.segments=MeshProfileIntersection(mesh.elements,mesh.x,mesh.y,self.exp)
 	# }}}
@@ -54,5 +54,5 @@
 		s+="%s\n" % fielddisplay(self,'type',"type of variable ('vertex' or 'scalar')")
 
-		if not isnan(self.fos_reverse_index):
+		if not numpy.isnan(self.fos_reverse_index):
 			s+="%s\n" % fielddisplay(self,'fos_reverse_index',"index for fos_reverse driver of ADOLC")
 		if self.exp:
@@ -75,5 +75,5 @@
 				raise RuntimeError("dependent checkconsistency error: index for segments should be >=0")
 
-		if not isnan(self.fos_reverse_index):
+		if not numpy.isnan(self.fos_reverse_index):
 			if not strcmpi(driver,'fos_reverse'):
 				raise TypeError("cannot declare a dependent with a fos_reverse_index when the driver is not fos_reverse!")
Index: /issm/trunk-jpl/src/m/classes/independent.py
===================================================================
--- /issm/trunk-jpl/src/m/classes/independent.py	(revision 13864)
+++ /issm/trunk-jpl/src/m/classes/independent.py	(revision 13865)
@@ -1,2 +1,3 @@
+import numpy
 from pairoptions import *
 from fielddisplay import *
@@ -35,5 +36,5 @@
 		s+="%s\n" % fielddisplay(self,'name',"variable name (must match corresponding Enum)")
 		s+="%s\n" % fielddisplay(self,'type',"type of variable ('vertex' or 'scalar')")
-		if not isnan(self.fos_forward_index):
+		if not numpy.isnan(self.fos_forward_index):
 			s+="%s\n" % fielddisplay(self,'fos_forward_index',"index for fos_foward driver of ADOLC")
 		if numpy.any(numpy.logical_not(numpy.isnan(self.fov_forward_indices))):
@@ -49,5 +50,5 @@
 
 	def checkconsistency(self,md,i,solution,analyses,driver):    # {{{
-		if not isnan(self.fos_forward_index):
+		if not numpy.isnan(self.fos_forward_index):
 			if not strcmpi(driver,'fos_forward'):
 				raise TypeError("cannot declare an independent with a fos_forward_index when the driver is not fos_forward!")