Function gmsh_sys::gmshModelMeshGetElementEdgeNodes

pub unsafe extern "C" fn gmshModelMeshGetElementEdgeNodes(
    elementType: c_int, 
    nodeTags: *mut *mut usize, 
    nodeTags_n: *mut usize, 
    tag: c_int, 
    primary: c_int, 
    task: usize, 
    numTasks: usize, 
    ierr: *mut c_int
)

Get the nodes on the edges of all elements of type elementType classified on the entity of tag tag. nodeTags contains the node tags of the edges for all the elements: [e1a1n1, e1a1n2, e1a2n1, ...]. Data is returned by element, with elements in the same order as in getElements and getElementsByType. If primary is set, only the primary (begin/end) nodes of the edges are returned. If tag < 0, get the edge nodes for all entities. If numTasks > 1, only compute and return the part of the data indexed by task.