Talk:Tricubic interpolation

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Grid ___location Subscripts

Latest comment: 8 years ago3 comments3 people in discussion

For clarity the subscripts of the cartisean grid ___location, here marked x and y, used to denote the ___location on the grid where the original data is being taken from should be labeled something else. This is to avoid confusion with the actual values of x,y and z that would be used in the interpolation factors. Also it should be noted that the data at the discreet points is denoted with an r.

Also the diagram of a cube is note very helpful and has no relevant notation. —Preceding unsigned comment added by Citizenthom (talk • contribs) 17:10, 11 February 2008 (UTC)Reply

I don't agree. The cube, although not used in the article, helps give intuition for the problem area. Limited Atonement (talk) 20:37, 16 April 2012 (UTC)Reply

I am also in favour of returning the graphic based on the above however, perhaps it would be best to replace it with a graphic that better describes how Tricubic interpolation works visually. EvilxFish (talk) 15:17, 26 June 2017 (UTC)Reply

Definitions

Latest comment: 13 years ago2 comments1 person in discussion

the line ${\displaystyle t(x,y)=\mathrm {CINT} _{z}\left(r(x,y,-1),\ldots \right)}$  contains the undefined function ${\displaystyle r(a,b,c)}$ . How should this function be defined? Does it matter?

Limited Atonement (talk) 20:33, 16 April 2012 (UTC)Reply

Based on the above comment, I suppose that ${\displaystyle r(a,b,c)}$  returns the sampled value at that point and is defined at ${\displaystyle -1,0,1,2}$ . But, as stated above, that's not entirely clear from the article.

Limited Atonement (talk) 20:36, 16 April 2012 (UTC)Reply