--- a/scripts/plot/draw/tetramesh.m	Tue Jan 20 09:55:41 2015 -0500
+++ b/scripts/plot/draw/tetramesh.m	Tue Jan 20 10:24:46 2015 -0500
@@ -26,19 +26,19 @@
 ## @var{T} is typically the output of a Delaunay triangulation
 ## of a 3-D set of points.  Every row of @var{T} contains four indices into
 ## the n-by-3 matrix @var{X} of the vertices of a tetrahedron.  Every row in
-## @var{X} represents one point in 3-D space. 
+## @var{X} represents one point in 3-D space.
 ##
 ## The vector @var{C} specifies the color of each tetrahedron as an index
 ## into the current colormap.  The default value is 1:m where m is the number
 ## of tetrahedrons; the indices are scaled to map to the full range of the
 ## colormap.  If there are more tetrahedrons than colors in the colormap then
 ## the values in @var{C} are cyclically repeated.
-## 
+##
 ## Calling @code{tetramesh (@dots{}, "property", "value", @dots{})} passes all
 ## property/value pairs directly to the patch function as additional arguments.
 ##
 ## The optional return value @var{h} is a vector of patch handles where each
-## handle represents one tetrahedron in the order given by @var{T}. 
+## handle represents one tetrahedron in the order given by @var{T}.
 ## A typical use case for @var{h} is to turn the respective patch
 ## @qcode{"visible"} property @qcode{"on"} or @qcode{"off"}.
 ##
@@ -67,11 +67,11 @@
 
   size_T = rows (T);
   cmap = colormap ();
-  
+
   if (length (reg) < 3)
     size_cmap = rows (cmap);
     C = mod ((1:size_T)' - 1, size_cmap) + 1;
-    if (size_T < size_cmap && size_T > 1) 
+    if (size_T < size_cmap && size_T > 1)
       ## expand to the available range of colors
       C = floor ((C - 1) * (size_cmap - 1) / (size_T - 1)) + 1;
     endif
@@ -90,7 +90,7 @@
     ## avoiding identical faces with different colors
     for i = 1:size_T
       [th, p] = __shrink__ ([1 2 3 4], X(T(i, :), :), 1 - 1e-7);
-      hvec(i) = patch ("Faces", th, "Vertices", p, 
+      hvec(i) = patch ("Faces", th, "Vertices", p,
                        "FaceColor", cmap(C(i), :), "FaceAlpha", 0.9,
                        prop{:});
     endfor
@@ -98,7 +98,7 @@
     ## FLTK does not support FaceAlpha.
     for i = 1:size_T
       th = [1 2 3; 2 3 4; 3 4 1; 4 1 2];
-      hvec(i) = patch ("Faces", th, "Vertices", X(T(i, :), :), 
+      hvec(i) = patch ("Faces", th, "Vertices", X(T(i, :), :),
                        "FaceColor", cmap(C(i), :), "FaceAlpha", 1.0,
                        prop{:});
     endfor