The squares are graduated with a compass rose and by placing the first square against a longitude line, or the compass rose printed on the chart, then placing the second against the lower edge, the bearing or course can be drawn on the chart.
Izikweri ziphumelele ngeziciko zesalatha mbombo nangokubeka isikwere sokuqala chaseneyo nomgca wobude, okanye isiciko salatha mbombo sibhalwe etshatini, wandula ukubeka esesibini chaseneyo nencam esezantsi, indlela okanye impawu zingazotywa etshatini.