sketch-a-day/s323/arcs.py

19 wiersze
751 B
Python

ROTATION = {0 : 0, BOTTOM : 0, DOWN : 0,
1 : HALF_PI, LEFT : HALF_PI,
2 : PI, TOP : PI, UP : PI,
3 : PI + HALF_PI, RIGHT: PI + HALF_PI,
BOTTOM + RIGHT : 0, DOWN + RIGHT : 0,
BOTTOM + LEFT : HALF_PI, DOWN + LEFT : HALF_PI,
TOP + LEFT : PI, UP + LEFT : PI,
TOP + RIGHT: PI + HALF_PI, UP + RIGHT: PI + HALF_PI,
}
def quarter_circle(x, y, radius, quadrant):
circle_arc(x, y, radius, ROTATION[quadrant], HALF_PI)
def half_circle(x, y, radius, quadrant):
circle_arc(x, y, radius, ROTATION[quadrant], PI)
def circle_arc(x, y, radius, start_ang, sweep_ang):
arc(x, y, radius * 2, radius * 2, start_ang, start_ang + sweep_ang)