CAD designers often a method for creating 3D models with a mathematical function. Using math expressions you can easily generate surprisingly good looking "organic" surfaces and 3D shapes.
A new free add-on utility - "CADStudio 3DPlot" is an AutoLISP tool for AutoCAD - it generates parametric 3D surfaces (polyline meshes) from mathematical expressions. It is possible to define any XYZ expression - just by coding it in AutoLISP. You can use 3DPlot not only for educational purposes but also in the design workflows - e.g. for creation of attractive architectural features, interior design, product design, sconces, for art design, etc.
More information and download on CADstudio 3DPlot
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