You can replace Y with Y4 and B with Y4 in those two expressions:
Y4=: 3%~+/"2 (0 0 0,0 1 1,1 1 2,:2 2 2){Y
B4=: 3%~+/"2 (0 0 0,0 1 1,1 1 2,:2 2 2){B
In other words, viewmat is interpolating linearly. (Pretend that the three
colors in Y are on a line segment and then pick four points equal spaced
apart with the two endpoints on the edges of that line segment. For the
other two colors use a weighted average of the two surrounding colors with
the weights being how close each point is to the corresponding color.)
Thanks,
--
Raul
On Mon, Jan 25, 2016 at 2:26 AM, Linda A Alvord <[email protected]>
wrote:
> This code makes 8 images. What are the two middle colors in 'Y Four' and
> the
> two colors in 'B Four'?
>
>
>
> load 'viewmat'
>
> ]Y=:3 3$255 255 255 255 255 0 0 0 0
>
> Y viewmat 0;'Y One'
>
> Y viewmat 0 1;'Y Two'
>
> Y viewmat 0 1 2;'Y Three'
>
> Y viewmat 0 1 2 3;'Y Four'
>
> ]B=:3 3$255 255 255 0 0 255 0 0 0
>
> B viewmat 0;'B One'
>
> B viewmat 0 1;'B Two'
>
> B viewmat 0 1 2;'B Three'
>
> B viewmat 0 1 2 3;'B Four'
>
>
>
> Linda
>
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