STYLE: Prefer itk::Math::abs for consistency.

Author: hjmjohnson

include/itkSiddonJacobsRayCastInterpolateImageFunction.hxx

@@ -264,23 +264,23 @@ SiddonJacobsRayCastInterpolateImageFunction<TInputImage, TCoordRep>::Evaluate(co
   /* Calculate alpha incremental values when the ray intercepts with x, y, and z-planes */
   if (rayVector[0] != 0)
   {
-    alphaUx = ctPixelSpacing[0] / fabs(rayVector[0]);
+    alphaUx = ctPixelSpacing[0] / itk::Math::abs(rayVector[0]);
   }
   else
   {
     alphaUx = 999;
   }
   if (rayVector[1] != 0)
   {
-    alphaUy = ctPixelSpacing[1] / fabs(rayVector[1]);
+    alphaUy = ctPixelSpacing[1] / itk::Math::abs(rayVector[1]);
   }
   else
   {
     alphaUy = 999;
   }
   if (rayVector[2] != 0)
   {
-    alphaUz = ctPixelSpacing[2] / fabs(rayVector[2]);
+    alphaUz = ctPixelSpacing[2] / itk::Math::abs(rayVector[2]);
   }
   else
   {