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The command line for LEDG is as follows:
ledg input_ledg_file output_evolver_file Bodies are given indices from the set of positive integers. In the event that body 1 is not specified, it becomes the implicit body, in which case all of the lattice cells not explicitly assigned to a body will be assigned to it.
The constraint specifiers determine which external faces, edges, and vertices (those lying on the outside of the lattice cube), are constrained to the unit cube. There are 6 possible constraint selectors: x0,x1,y0,y1,z0,z1. The x0 and x1 selectors dictate that the objects lying on the x = 0.0 and x = 1.0 faces of the cube, respectively, will be constrained to that plane. Although constraint specifiers may be interspersed with body specifiers, their effect is global and not not influenced by order in the file.