Automatic Meshing

Helpers to derive mesh lines from geometric primitives, see Mesh.

Created on Sun Feb 19 20:29:25 2017

@author: thorsten

openEMS.automesh.mesh_hint_from_point(point, dirs)

Get a grid hint for the coordinates of the point.

Parameters:

  • dirs – str – ‘x’,’y’,’z’ or ‘xy’, ‘yz’ or ‘xyz’ or ‘all’

  • mesh – combine mesh hint to existing mesh

Returns:

(3,) list of mesh hints

openEMS.automesh.mesh_hint_from_box(box, dirs, metal_edge_res=None, **kw)

Get a grid hint for the edges of the given box with an an optional 2D metal edge resolution.

Parameters:

  • dirs – str – ‘x’,’y’,’z’ or ‘xy’, ‘yz’ or ‘xyz’ or ‘all’

  • metal_edge_res – float – 2D flat edge resolution

  • up_dir – bool – Enable upper edge

  • down_dir – bool – Enable lower edge

  • mesh – combine mesh hint to existing mesh

Returns:

(3,) list of mesh hints

openEMS.automesh.mesh_estimate_cfl_timestep(mesh)

Estimate the maximum CFL time step of the given mesh needed to ensure numerical stability, assuming propagation in pure vacuum.

Returns:

the maximum CFL time step, in seconds