Talk:Trilinear interpolation
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The equations for i1, i2, j1, j2 in the example are all the same. This seems like an error. Am I missing something? Skorkmaz 19:53, 4 December 2007 (UTC)
- They're not quite the same. For instance, the equation for i1 uses
(y rounded downwards to the nearest integer) while the equation for i2 uses 
(y rounded upwards to the nearest integer).
- Thanks for the pictures you added. However, I don't understand the second picture. Shouldn't the blue lines be parallel to the edges of the cube? -- Jitse Niesen (talk) 20:56, 4 December 2007 (UTC)
- The blue lines don't need to be paralel because the end points of the blue lines (C00, C10, C01, C11) are found by interpolation of the cubes lower and upper planes. May be I should make them look less parallel, especially the lower one. Skorkmaz (talk) 11:17, 5 December 2007 (UTC)
- Then I don't understand the picture at all. What are the points C00 etc. and the lines supposed to mean? -- Jitse Niesen (talk) 12:52, 5 December 2007 (UTC)
- The blue lines don't need to be paralel because the end points of the blue lines (C00, C10, C01, C11) are found by interpolation of the cubes lower and upper planes. May be I should make them look less parallel, especially the lower one. Skorkmaz (talk) 11:17, 5 December 2007 (UTC)
