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Javascript implementation of Bilinear Interpolation
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| Math.blerp = function (values, x1, y1, x2, y2, x, y) { | |
| let q11 = (((x2 - x) * (y2 - y)) / ((x2 - x1) * (y2 - y1))) * values[x1][y1] | |
| let q21 = (((x - x1) * (y2 - y)) / ((x2 - x1) * (y2 - y1))) * values[x2][y1] | |
| let q12 = (((x2 - x) * (y - y1)) / ((x2 - x1) * (y2 - y1))) * values[x1][y2] | |
| let q22 = (((x - x1) * (y - y1)) / ((x2 - x1) * (y2 - y1))) * values[x2][y2] | |
| return q11 + q21 + q12 + q22 | |
| } |
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