use zeros() instead of explicitly zeroing

Sketch.py

@@ -28,12 +28,8 @@ class Sketch(object):
                     shape_vars[shape_var] = varid
                     varid += 1
                     varid_to_shape_var.append(shape_var)
-        C = empty((len(equations), len(shape_vars)))
-        d = empty(len(equations))
-        for row in range(len(equations)):
-            for col in range(len(shape_vars)):
-                C[row][col] = 0.0
-            d[row] = 0.0
+        C = zeros((len(equations), len(shape_vars)))
+        d = zeros(len(equations))
         for i in range(len(equations)):
             e = equations[i]
             coeffs = e[0]
@@ -41,9 +37,16 @@ class Sketch(object):
                 var_index = shape_vars[c[1]]
                 C[i][var_index] = c[0]
             d[i] = e[1]
+#        for row in range(len(equations)):
+#            print '[',
+#            for col in range(len(shape_vars)):
+#                print C[row][col],
+#                print ',',
+#            print '] [%f]' % d[row]
         s = SLE(C, d)
         r = s.solve()
         solved_vars = r.xf
+        print "SOLVED: ", solved_vars
         for i in range(len(solved_vars)):
             varid_to_shape_var[i][0].setVar(varid_to_shape_var[i][1],
                     solved_vars[i])