mesh.Mesh.offset

Mesh.offset(distance=1.0)

Offset a tri3 Mesh with a certain distance.

Parameters

distance: float

Distance over which the points should be moved.

Returns

Mesh

A Mesh (eltype = “tri3”) obtained by moving each node of the input Mesh along the averaged normal vector at that node, by the specified distance. The averaged normal at a node is computed from the normals of all elements that node belongs to.

Examples

>>> coords = Coords([[0.0, 0.0, 0.0],
...                  [1.0, 0.0, 0.1],
...                  [1.0, 1.0, 0.0],
...                  [0.0, 1.0, 0.1]])
>>> M = Mesh(coords,[[0,1,2],[2,3,0]],eltype='tri3')
>>> M1 = M.offset(distance=1.0)
>>> print(M1.coords)
[[0.    0.    1.    ]
 [0.901 0.099 1.0901]
 [1.    1.    1.    ]
 [0.099 0.901 1.0901]]