Allegro 5 api
#include <allegro5/allegro_primitives.h> void al_draw_elliptical_arc(float cx, float cy, float rx, float ry, float start_theta, float delta_theta, ALLEGRO_COLOR color, float thickness)
Draws an elliptical arc.
Parameters:
cx, cy - Center of the arc
rx, ry - Radii of the arc
color - Color of the arc
start_theta - The initial angle from which the arc is calculated
delta_theta - Angular span of the arc (pass a negative number to switch direction)
thickness - Thickness of the arc, pass <= 0 to draw hairline arc
5.0.6, 5.1.0
al_calculate_arc(3alleg5), al_draw_arc(3alleg5)