Additive manufacturing 
3.2 Model produced by laser scanning
A structure that has been scanned using a laser scanner will have an array of measurement points taken from its surface. The location of these discrete points is known, but any location in between them will not be known. However, digitisation will ensure that points between measurements are interpolated. With the measured points and the interpolated points, layers can be defined for input into the AM apparatus.
OpenLearn - Additive manufacturing 
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