Main Help → All Commands → MPM Grid and Material Points → Region Command → Transform
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
(angZ)
, (angY)
, and (angZ)
define a ZYZ rotation scheme. Only the first angle is used in 2D, while all three can be used in 3D.(Ox),(Oy),(Oz)
) defines and origin. The rotations of particles are done about the point defined by the origin.(Tx),(Ty),(Tz)
) defines a translations
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.