Abstract
A procedural method for scattered data interpolation is presented. The interpolating surface represents terrain surfaces used in Digital Terrain Modeling (DTM). The construction provides visually continuous surfaces whose shape can be locally or globally controlled, can interpolate disconnected domains, and can maintain break lines or break triangles, i.e. they can be forced locally to interpolate edges and triangles. Shape control and local interpolation properties are achieved through swung surfaces as basis functions defined for each data point over a small triangulated region.
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