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Transform Command

The Transform command in MPM analyses rotates and translates particles to define initial shapes that conform better to a modeled shape, especially when the desired shape is not aligned to the gid:

Rotate (angZ),<(Tx)>,<(Ty)>,<(Ox)>,<(Oy)>,<(angY)>,<(angZ2)>,<(Tz)>,<(Ozx)>

where

This command will rotate all particles in the shapes used in the current Region block by angles provided and then translate them by the provided translation. The rotation is rotating the initial particle shape and not the particle material property axes. Note that when regions are transformed, the particles are placed wherever they appear on the grid including on top other particles inserted in other commands. In other words, when using this option, the user is responsible for insuring that particles do not overlap.

Notes

  1. Transform commands can only used with Region blocks (in MPM only) and only one command can be used in each such block.
  2. All parameters are optional; those omitted are set to zero. The first five commands are for 2D simulations. The last four add more parameters needed for 3D simulations.