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Hi John, > Please excuse my ignorance in VisAD. Suppose I want to generate a shape with > say a circular base, is it still possible to use gridded3DSet with a manifold > dimension of 2? Since a circular base has less points in a rectangular grid > system than a rectangular base with lengthX * lengthY number of points, is it > pretty much impossible to generate shapes with non-ractangular base with > gridded3dset? I guess didn't understand the documentation very well when it > stated that GriddedSets are N-dimensional sets with rectangular topologies > but not necessarily rectangular geometries. Thanks in advance. A Gridded3DSet with manifold dimension = 2 is a rectangular grid of points (like a checkerboard), arbitrarily twisted and warped in 3-D. For radar data it could be a set of radial distances crossed with a set of angles (i.e., the checkerboard would be formed by a set of radial lines and a set of concentric circles). In 3-D circular grid may lie on a cone shape. Good luck, Bill
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