If current happens to be N E then this line is drawn S W and so forth, because to arrive at the destination point, your steering correction has to be opposite to the current.
Ukuba esetyenziswayo kuyenzeka ukuba ibengu NE ngoku lomgca uzotywa ubengu SW njalo-njalo kuba ukufika endaweni yokufikela ukulungisa kokuqhuba kwakho kofuneka kuhambelane nokusetyenziswa