NAME:			matrix
 
 CELL CONTENTS:
 	Each cell consists of two cell components.  There are a total
 	of 8 possible cell components stored as BIF objects.  Each cell 
 	component is scaled, rotated, and/or translated into place to 
 	form the cell.  Each cell is then transformed to create the 
 	layout.  In this process All the BIF matrix primitives are 
 	exercised.
 
 	The cell components are shown below:
 
         x= -1    x = +1
 	|        |
 	_________   __ y= +2
 	|        |                x= -1              x= +2
 	|        |                |                  |
 	|        |                ___________________   __ y= +1
 	|        |                |                  |
 	|        | object 1       |                  |  object 2
 	|        |                |                  |
 	|        |                |                  |
 	|________|  __ y= -1      |__________________|  __ y= -1
 
 
 
 
         x= -1    x=  0     x= +1             x= 0   x= +1
 	|        |         |                 |      |
 	         .           __ y= +1                 __ y= +1
 	        / \                          |\
 	      /     \                        | \
 	    /         \ object 3             |  \  object 4
 	  /             \                    |   \
 	/_________________\  __ y= 0         |    >   -- y= 0
  	                                     |   /
 	                                     |  /
 	                                     | /
 	                                     |/        __ y= -1
 
 
         y= -1    y = +1
 	|        |
 	_________   __ z= +2
 	|        |                y= -1              y= +2
 	|        |                |                  |
 	|        |                ___________________   __ z= +1
 	|        |                |                  |
 	|        | object 5       |                  |  object 6
 	|        |                |                  |
 	|        |                |                  |
 	|________|  __ z= -1      |__________________|  __ z= -1
 
 
 
 
         y= -1    y=  0     y= +1             y= 0   y= +1
 	|        |         |                 |      |
 	         .           __ z= +1                 __ z= +1
 	        / \                          |\
 	      /     \                        | \
 	    /         \ object 7             |  \  object 8
 	  /             \                    |   \
 	/_________________\  __ z= 0         |    >   -- z= 0
  	                                     |   /
 	                                     |  /
 	                                     | /
 	                                     |/        __ z= -1
 
 	Objects 1,2,3,and 4 are constructed with the "Polygon" primitive.
 	Objects 5,6,7,and 8 are constructed with the "Polygon3" primitive.
 
 
 CELL LAYOUT:
 	Cells are arranged in 4 rows and 4 columns and should look
 	like 16 identical white arrows pointing up.
 
 
 CONSTANTS:
     HLHS_Removal 		hlhs_enable 
     Background_color   		.1 .1 .3 
     Backface_interior_color 	1.0 1.0 1.0 
     Interior_shading 		1 
     Interior_lighting 		1 
     Backface_processing 	0 0 
     Interior_style 		solid 
     Interior_color  		.8 .8 .8 
     Edge_flag 			disabled 
 
     Text_prec 			Stroke 
     Char_exp 			1 
     Text_color 			1 1 1 
     char_height 		30 
 	
 PER FILE VARIABLES:
 	NONE
 
 RANDOM VARIABLES:
 	NONE
 
 COLUMN VARIABLES:
 	NONE
 	
 ROW VARIABLES:
 	NONE
 
 ROW/COLUMN VARYING VARIABLES:
 
 	   /\            /\            /\            /\
 	  /  \          /  \          /  \          /  \
 	 / 17 \        / 14 \        / 13 \        / 14 \
 	/______\      /______\      /______\      /______\
          ____          ____          ____          ____
 	  |  |          |  |          |  |          |  |
 	  |  |          |  |          |  |          |  |
 	  |11|          |12|          |11|          |12|
 	  |  |          |  |          |  |          |  |
 	  |__|          |__|          |__|          |__|
 
 
 	   /\            /\            /\            /\
 	  /  \          /  \          /  \          /  \
 	 / 18 \        / 13 \        / 17 \        / 18 \
 	/______\      /______\      /______\      /______\
          ____          ____          ____          ____
 	  |  |          |  |          |  |          |  |
 	  |  |          |  |          |  |          |  |
 	  |15|          |16|          |15|          |16|
 	  |  |          |  |          |  |          |  |
 	  |__|          |__|          |__|          |__|
 
 
 	   /\            /\            /\            /\
 	  /  \          /  \          /  \          /  \
 	 / 17 \        / 14 \        / 13 \        / 14 \
 	/______\      /______\      /______\      /______\
          ____          ____          ____          ____
 	  |  |          |  |          |  |          |  |
 	  |  |          |  |          |  |          |  |
 	  |11|          |12|          |11|          |12|
 	  |  |          |  |          |  |          |  |
 	  |__|          |__|          |__|          |__|
 
 
 	   /\            /\            /\            /\
 	  /  \          /  \          /  \          /  \
 	 / 18 \        / 13 \        / 17 \        / 18 \
 	/______\      /______\      /______\      /______\
          ____          ____          ____          ____
 	  |  |          |  |          |  |          |  |
 	  |  |          |  |          |  |          |  |
 	  |15|          |16|          |15|          |16|
 	  |  |          |  |          |  |          |  |
 	  |__|          |__|          |__|          |__|
 
 
 				| 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 
 	------------------------+----+----+----+----+----+----+----+----+
 	Identity3		| X  | X  | X  | X  | X  | X  | X  | X  | 
 	Concat_matrix3		| X  | X  | X  | X  | X  | X  | X  | X  | 
 	Invert_matrix3		|    |    |    |    | X  |    |    |    | 
 	------------------------+----+----+----+----+----+----+----+----+
 	Rotate3			|    | X  |    | X  | X  | X  | X  | X  | 
 	Rotate_xyz3		|    |    |    |    | X  | X  |    |    | 
 	Translate3		| X  | X  |    |    | X  | X  |    |    | 
 	------------------------+----+----+----+----+----+----+----+----+
 	Scale3			| X  | X  |    | X  | X  | X  | X  | X  | 
 	Matrix3			|    |    | X  |    |    |    |    |    | 
 	Get_matrix3		|    |    | X  | X  |    |    |    |    | 
 	------------------------+----+----+----+----+----+----+----+----+
 	Push_matrix3		| X  | X  | X  | X  | X  | X  | X  | X  | 
 	Pop_matrix3		| X  | X  | X  | X  | X  | X  | X  | X  | 
 	Global_Transformation3	|    |    |    |    |    |    |    | X  | 
 	------------------------+----+----+----+----+----+----+----+----+
 	Local_transformation3	|    |    |    |    |    |    |    | X  | 
 	Apply_to_global3	| X  | X  | X  | X  | X  | X  | X  | X  | 
 	Apply_to_local3		| X  | X  | X  | X  | X  | X  | X  | X  | 
 	------------------------+----+----+----+----+----+----+----+----+
 
 COMMENTS ON PHOTOGRAPHS:
 
 	*  Looks just right.
 
 	*  The text size (for the text at toe bottom of the screen )
 		was reduced from the size on the photograph.  Additional
 		information has been added to that text.

.