Free structured grid generator: MegaCads
Since this month MegaCads is freely available on the Web:
MegaCads is an interactive grid generation system, which enables the user to build block boundaries, distribute points on them, create surface grids and fill volume blocks with grids, based on simple representations of shapes through the use of basic objects like polygons and splines in 2D and 3D. The resulting algebraic grids can be smoothed using elliptic or biharmonic techniques. The whole design is done in a parametric fashion and each design step is stored in a script file. Using the built in restart capability, it is possible to change parameters and replay the script file.
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