NAME: 		interior
  
  CELL CONTENTS:
  	Each cell contains a single facet.  The facet contains no
  	per-vertex or per-facet attributes.  Of the 28 variations
  	of this test the output primitive used to create the facet is:
  
  	(interior.v01 - interior.v04) use "Polygon" as the facet.
  	(interior.v05 - interior.v04) use "Polygon3" as the facet.
  	(interior.v09 - interior.v10) use "Fill_area_set" as the facet.
  	(interior.v13 - interior.v16) use "Fill_area_set3" as the facet.
  	(interior.v17 - interior.v20) use "Triangle3" as the facet.
  	(interior.v21 - interior.v24) use "Quad_mesh3" as the facet.
  	(interior.v25 - interior.v28) use "Index_polygon3" as the facet.
 | 	(interior.v29 - interior.v32) use "Non_uniform_bspline_surface" as the facet.
  
  CELL LAYOUT:
  	Cells are arranged on the screen in a matrix of 5 rows and
  	8 columns.
  
  CONSTANTS:
  	Background_color		.3 .3 .8
  	Background_color_index		16
  	Interior_shading		1
  	Interior_lighting 		1
  	Backface_processing 		0 0
  	Define_color %  i	 red	green	blue	         %
      	 		8	 1	0	0	% Red	 %
      	 		9	 0	1	0	% Green  %
      	 		10	 0	0	1	% Blue	 %
      	 		11	 1	1	0	% Yellow %
      	 		12	 0	1	1	% Cyan	 %
      	 		13	 1	0	1	% Magenta%
      	 		14	 1	1	1	% White	 %
      	 		15	 0	0	0	% Black	 %
      	 		16	 0.3	0.3	0.8
  			20	0.000000	0.000000	1.000000
  			21	0.000000	0.142857	1.000000
  			22	0.000000	0.285714	1.000000
  			23	0.000000	0.428571	1.000000
  			24	0.000000	0.571429	1.000000
  			25	0.000000	0.714286	1.000000
  			26	0.000000	0.857143	1.000000
  			27	0.000000	1.000000	1.000000
  			28	0.250000	0.000000	0.750000
  			29	0.250000	0.142857	0.750000
  			30	0.250000	0.285714	0.750000
  			31	0.250000	0.428571	0.750000
  			32	0.250000	0.571429	0.750000
  			33	0.250000	0.714286	0.750000
  			34	0.250000	0.857143	0.750000
  			35	0.250000	1.000000	0.750000
  			36	0.500000	0.000000	0.500000
  			37	0.500000	0.142857	0.500000
  			38	0.500000	0.285714	0.500000
  			39	0.500000	0.428571	0.500000
  			40	0.500000	0.571429	0.500000
  			41	0.500000	0.714286	0.500000
  			42	0.500000	0.857143	0.500000
  			43	0.500000	1.000000	0.500000
  			44	0.750000	0.000000	0.250000
  			45	0.750000	0.142857	0.250000
  			46	0.750000	0.285714	0.250000
  			47	0.750000	0.428571	0.250000
  			48	0.750000	0.571429	0.250000
  			49	0.750000	0.714286	0.250000
  			50	0.750000	0.857143	0.250000
  			51	0.750000	1.000000	0.250000
  			52	1.000000	0.000000	0.000000
  			53	1.000000	0.142857	0.000000
  			54	1.000000	0.285714	0.000000
  			55	1.000000	0.428571	0.000000
  			56	1.000000	0.571429	0.000000
  			57	1.000000	0.714286	0.000000
  			58	1.000000	0.857143	0.000000
  			59	1.000000	1.000000	0.000000
  	Text_prec			Stroke
  	Char_exp			1
  	Char_height			30
  	Text_color			1 1 1
  	Text_color_index		14
  
  PER FILE VARIABLES:	( See also Appendix B )
  	Default_view_specification	parallel/perspective
  	Configuration			true_color/pseudo_color
  
  COLUMN VARIABLES:
  					Collumn
  		1	2	3	4	5	6	7	8
    Variable: 	____	____	____	____	____	____	____	____ 
    Interior_st hollow	solid	pattern	empty	hollow	solid	pattern	empty
    Edge_type	0	1	2	3	0	1	2	3
    HLHS_Remov  disable enable	disable	enable	disable	enable	disable	enable
    Call/Execu  Exec	Call	Exec	Call	Exec	Call	Exec	Call
  	
  ROW VARIABLES:
  
    Row	Interior_pattern_index	Edge_flag	Edge_width
  
    1	0			disabled	1
    2	1			enabled		1
    3	2			enabled		2
    4	3			enabled		3
    5	4			enabled		4
  
  
  ROW/COLUMN VARYING VARIABLES:
    Interior_color:	A gouraud shaded styled ramp between:
  		   (row 1, col 1) = 0 0 1	(row 1, col 8) = 0 1 1
  		   (row 5, col 1) = 1 0 0	(row 5, col 8) = 1 1 0
  
    Interior_color_index: Increment by 1 from left to right, top to bottom,
  		   starting at (row 1, col 1) = 20 and 
  		   ending   at (row 5, col 8) = 59.
  		   The colors the indices reference should be identical 
  		   to those used in true_color mode by Interior_color.
  
     Edge_color:		A gouraud shaded styled ramp between:
  		   (row 1, col 1) = 1 1 0	(row 1, col 8) = 1 0 0
  		   (row 5, col 1) = 0 1 1	(row 5, col 8) = 0 0 1
  
     Edge_color_index: 	Decrement by 1 from left to right, top to bottom,
  		   starting at (row 1, col 1) = 59 and 
  		   ending   at (row 5, col 8) = 20.
  		   The colors the indices reference should be identical to
  		   those used in true_color mode by Edge_color.
  
  COMMENTS ON PHOTOGRAPHS:
  
  	*  Edge color and interior color ARE exactly correct on the
  		photographs.  Note that in the top row in columns 1 and 5
  		the edge color is the same as the polygon color.  This IS
  		correct because those polygons are "Interior_style hollow"
  		and "Edge_flag disable"(d).
  
  
  	*  Edge type had no effect in the photographs.  They should be:
  		Column 1:	_____	(solid  )
  		Column 2:	_ _ _ 	(dash   )
  		Column 3:	.....	(doted  )
  		Column 4:	_._._	(dashdot)
  		Column 5:	_____	(solid  )
  		Column 6:	_ _ _ 	(dash   )
  		Column 7:	.....	(doted  )
  		Column 8:	_._._	(dashdot)
  
  	*  Interior_pattern_index type had no effect in the photographs.  
  		They should be:
  		Row 1:		|||||	(vertical lines                )
    		Row 2:		-----	(horizontal lines              )
    		Row 3:		/////	(diagonal lines, wide   spacing)
    		Row 4:		/ / /	(diagonal lines, medium spacing)
    		Row 5:		\\\\\	(diagonal lines, wide   spacing)
  
  		(NOTE:  The default patterns were not defined in the BIF
  			manual, and are not defined in PHIGs.  These are
  			therefor proposals only ).
  
  	*  Edge_width type had no effect in the photographs.
  
  	*  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.

.