--- trunk/test/tracto.diderot	2010/05/27 15:16:36	91
+++ trunk/test/tracto.diderot	2010/05/27 15:16:48	92
@@ -20,7 +20,7 @@
     vec3        pos = seedPoint;
     //// principleEvec : tensor[3,3] -> vec3
     //// * : real x vec3 -> vec3
-    vec3        guide = seedSign * principleEvec(F@seedPoint);
+    vec3        guide = real(seedSign) * principleEvec(F@seedPoint);
     real        aniso = 0.0;
 
     update
@@ -31,7 +31,7 @@
            //// CL : tensor[3,3] -> real
            aniso = CL(ten);  // "CL" is a linear anisotropy measure
            //// < : real x real -> bool
-           if (aniso < clmin) {
+           if (aniso < CLmin) {
               // terminate because anisotropy went too low
               stabilize;
            }
@@ -39,12 +39,12 @@
            vec3 evec = principleEvec(ten);
            //// dot : vec3 x vec3 -> real
            //// - : vec3 -> vec3
-           if (dot(evec, guide) < 0) { evec = -evec; } // fix eigenvector sign
+           if (dot(evec, guide) < 0.0) { evec = -evec; } // fix eigenvector sign
            //// * : real x real -> real
            //// * : real x vec3 -> vec3
            //// + : vec3 x vec3 -> vec3
            evec = principleEvec(F @ (pos + 0.5*stepSz*evec));
-           if (dot(evec, guide) < 0) { evec = -evec; } // fix eigenvector sign
+           if (dot(evec, guide) < 0.0) { evec = -evec; } // fix eigenvector sign
            guide = evec;
            pos = pos + stepSz*evec;
            //// + : int x int -> int

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	<div class="info">The output has ended thus:             guide = evec;
            pos = pos + stepSz*evec;
            //// + : int x int -&gt; int</div>
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