1. But

Make changes to an existing mesh. The possibilities for modifications are:

• reorienting edge meshes used to apply pressure,

• check the orientation of the normals on the shell elements,

• reorienting the meshes of a monolayer of joint elements,

• update the mesh based on a deformation calculated previously,

• in a mesh with a crack background, move the middle nodes of the edges touching the crack bottom to a quarter of these edges,

• translate a mesh,

• impose one or more rotations of any axes on a mesh,

• generate a symmetric mesh with respect to a plane in 3D or a line in 2D.

• calculate the curvilinear abscissa along a line made up of line elements (SEG)

• change the coordinates of the nodes randomly

Produces a mesh-like data structure or changes the data structure (re-entering operator).