92 	float w1pos = 0;  in Draw()  local
95 	while (w1pos <= update.left) {  in Draw()
96 		w1pos += waves[1].step;  in Draw()
100 	while (w1pos <= update.right) {  in Draw()
105 		BPoint p1(w1pos, INT16_MIN);  in Draw()
106 		BPoint p2(w1pos, waves[1].ValueAt(i) * zoom);  in Draw()
109 		w1pos += waves[1].step;  in Draw()
114 	w1pos = 0;  in Draw()
117 	while (w1pos <= update.left) {  in Draw()
118 		w1pos += waves[2].step;  in Draw()
122 	while (w1pos <= update.right) {  in Draw()
127 		BPoint p1(w1pos, INT16_MAX);  in Draw()
128 		BPoint p2(w1pos, waves[2].ValueAt(i) * zoom);  in Draw()
131 		w1pos += waves[2].step;  in Draw()