seems like a slip of pen in [READEME]:"FaultInfo{k}.SegEnds, (Nx4 matrix of N fault segment coordinates (Cartesian) of % format [x1 x2 y1 y2] where (x1,y1) is first endpoint and (x2,y2) % is the other endpoint % FaultInfo{k}."
indeed, it should be format [x1 y1 x2 y2]

seems like a slip of pen in [READEME]:"FaultInfo{k}.SegEnds, (Nx4 matrix of N fault segment coordinates (Cartesian) of % format [x1 x2 y1 y2] where (x1,y1) is first endpoint and (x2,y2) % is the other endpoint % FaultInfo{k}."

indeed, it should be format [x1 y1 x2 y2]