/GRAPHICS_ATTRIBUTES
Change HIGZ attributes.
- ICOL
I ' Color Index ' D=1
- RED
R ' Weight of red ' D=0. R=0.:1.
- GREEN
R ' Weight of green ' D=0. R=0.:1.
- BLUE
R ' Weight of blue ' D=0. R=0.:1.
Define the color ICOL.
- PALNB
I ' Palette number ' D=0 R=0:9
- NEL
I ' Number of elements in the palette ' D=0 R=0:50
- LIST
I ' List of the palette elements ' D=0
Define a palette of attributes. The palette number is used in the command
SET. The command SET HCOL 0.1 defines the palette number 1 as colour
indices used by the command LEGO in case of stacked lego plots and plotting
of SURFACE with options 1 or 2, LEGO with option 2 and CONTOUR with option
3.
By default the palettes are initialized with 6 elements: 2,3,4,5,6,7.
If the number of elements (NEL) is equal to 0 (default), the palette is
filled automatically according to the number of colours defined with the
command SET NCOL:
a) If NCOL is smaller or equal to 8, the palette is filled with a
subset of the 8 basic colours.
Examples:
PAW > SET NCOL 8 | Define the number of colours
PAW > PALETTE 1 | The palette 1 is filled with
| 8 elements: 0,5,7,3,6,2,4,1
PAW > SET NCOL 4 | Define the number of colours
PAW > PALETTE 1 | The palette 1 is filled with
| 4 elements: 0,5,7,3
b) If NCOL is greater than 8, the palette is filled
with colours varying continuously from blue to red. This is
called a 'geographical palette'.
Examples:
PAW > SET NCOL 16 | Define the number of colours
PAW > PALETTE 1 | Fill palette 1 with 8 elements
| (8,9,10,11,12,13,14,15) varying
| continuously from blue to red
Note that after the command SET NCOL, the color indices from
8 to NCOL are set with gray levels. The command PALETTE 1
reset the same indices with a 'geographical palette' varying
continuously from blue to red.