table for hexahedron decomposition is buggy. Not fixed but indicated

[[Imported from SVN: r7873]]

graphics/uggraph/iso.c

@@ -58,12 +58,12 @@ typedef struct {
 /*																			*/
 /****************************************************************************/
 
-static int Pyr[ 2][ 8] = {
+static int Pyr[2][8] = {
   {0, 1, 2, 4, 0, 2, 3, 4},
   {0, 1, 3, 4, 1, 2, 3, 4}
 };
 
-static int Pri[ 8][12] = {
+static int Pri[8][12] = {              /* manual labour, triple check Pri!! */
   {0, 4, 5, 3, 1, 4, 2, 0, 2, 4, 5, 0},
   {3, 4, 2, 5, 3, 4, 0, 2, 0, 4, 1, 2},
   {0, 1, 2, 5, 3, 4, 0, 5, 0, 4, 1, 5},
@@ -74,7 +74,7 @@ static int Pri[ 8][12] = {
   {3, 4, 1, 5, 5, 3, 2, 1, 3, 0, 2, 1}
 };
 
-static int Hex[64][24] = {
+static int Hex[64][24] = {  /* computed with AH's procedural implementation */
   {7, 0, 3, 6, 0, 3, 2, 6, 0, 2, 1, 6, 7, 0, 4, 6, 0, 4, 5, 6, 0, 5, 1, 6},
   {7, 0, 3, 6, 3, 2, 1, 6, 0, 3, 1, 6, 7, 0, 4, 6, 0, 4, 5, 6, 0, 5, 1, 6},
   {7, 0, 3, 6, 0, 3, 2, 6, 0, 2, 1, 6, 7, 0, 4, 6, 4, 5, 1, 6, 0, 4, 1, 6},
@@ -115,12 +115,12 @@ static int Hex[64][24] = {
   {6, 3, 2, 5, 1, 2, 3, 5, 0, 1, 3, 5, 6, 3, 7, 5, 0, 4, 7, 5, 0, 7, 3, 5},
   {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
   {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
-  {0, 2, 3, 7, 0, 1, 2, 5, 0, 4, 5, 7, 2, 5, 6, 7, 0, 2, 5, 7,-1,-1,-1,-1},
+  {0, 2, 3, 7, 0, 1, 2, 5, 0, 4, 5, 7, 2, 5, 6, 7, 0, 2, 5, 7,-1,-1,-1,-1},       /* BUG!? 101000 */
   {3, 0, 1, 7, 0, 1, 5, 7, 0, 5, 4, 7, 3, 1, 2, 7, 1, 2, 6, 7, 1, 6, 5, 7},
   {4, 1, 5, 7, 1, 5, 6, 7, 1, 6, 2, 7, 4, 1, 0, 7, 0, 3, 2, 7, 1, 0, 2, 7},
   {2, 7, 6, 1, 7, 6, 5, 1, 4, 7, 5, 1, 2, 3, 7, 1, 0, 3, 7, 1, 0, 7, 4, 1},
-  {0, 2, 3, 7, 0, 1, 2, 5, 0, 4, 5, 7, 2, 5, 6, 7, 0, 2, 5, 7,-1,-1,-1,-1},
-  {0, 2, 3, 7, 0, 1, 2, 5, 0, 4, 5, 7, 2, 5, 6, 7, 0, 2, 5, 7,-1,-1,-1,-1},
+  {0, 2, 3, 7, 0, 1, 2, 5, 0, 4, 5, 7, 2, 5, 6, 7, 0, 2, 5, 7,-1,-1,-1,-1},       /* BUG!? 101100 */
+  {0, 2, 3, 7, 0, 1, 2, 5, 0, 4, 5, 7, 2, 5, 6, 7, 0, 2, 5, 7,-1,-1,-1,-1},       /* BUG!? 101101 */
   {1, 4, 5, 2, 7, 6, 5, 2, 4, 7, 5, 2, 1, 0, 4, 2, 0, 3, 7, 2, 0, 7, 4, 2},
   {4, 1, 5, 7, 5, 6, 2, 7, 1, 5, 2, 7, 4, 1, 0, 7, 1, 0, 3, 7, 1, 3, 2, 7},
   {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},