mymesh.utils.Face2NodeNormal

mymesh.utils.Face2NodeNormal(NodeCoords, NodeConn, ElemConn, ElemNormals, method='Angle')

Calculate node normal vectors based on the element face normals.

Parameters:

• NodeCoords (list) – List of nodal coordinates.

• NodeConn (list) – Nodal connectivity list.

• ElemConn (list) – List of elements connected to each node.

• ElemNormals (list) – List of element normal vectors.

• method (str, optional) –

  Method used to determine node normals. The default is ‘Angle’.

  • Angle - performs an angle weighted average of connected element normals [ThurrnerWuthrich98]

  • Average - performs a simple averaging of connected element normals

  • MostVisible - determines the most visible normal [ALohner08]

  • MostVisible_Loop - non-vectorized version of MostVisible, slower but more readable

  • MostVisible_Iter - iterative method for determining the most visible normal [ALohner08]

  MostVisible_Loop and MostVisible_Iter are included for completeness, but in general, MostVisible should be used instead.

Returns:

NodeNormals – Unit normal vectors for each node.

Return type:

list