Surface Interrogation Algorithms
IEEE Computer Graphics and Applications
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For computer-aided design it is often necessary to identify regions of unwanted curvature in a surface. Isophotes can be used to detect first- and second-order discontinuities in a surface. This paper describes a method to visualize isophotes using existing hardware or software display and false colour capabilities. This method is faster and easier to implement than the traditional approach of explicitly computing isophotes.