# get number of the edges not belonging to the group with the given color
filter = smesh.GetFilter(SMESH.EDGE, SMESH.FT_GroupColor, c, SMESH.FT_LogicalNOT)
ids = mesh.GetIdsFromFilter(filter)
# get number of the edges not belonging to the group with the given color
filter = smesh.GetFilter(SMESH.EDGE, SMESH.FT_GroupColor, c, SMESH.FT_LogicalNOT)
ids = mesh.GetIdsFromFilter(filter)