Function gmsh_sys::gmshModelGetBoundary

pub unsafe extern "C" fn gmshModelGetBoundary(
    dimTags: *mut c_int, 
    dimTags_n: usize, 
    outDimTags: *mut *mut c_int, 
    outDimTags_n: *mut usize, 
    combined: c_int, 
    oriented: c_int, 
    recursive: c_int, 
    ierr: *mut c_int
)

Get the boundary of the model entities dimTags. Return in outDimTags the boundary of the individual entities (if combined is false) or the boundary of the combined geometrical shape formed by all input entities (if combined is true). Return tags multiplied by the sign of the boundary entity if oriented is true. Apply the boundary operator recursively down to dimension 0 (i.e. to points) if recursive is true.