def generate_grid(center, density, radius):
"""
Generate a list of x, y coordinates confined to the inside of a circle with
specified center point and radius. The density is how many points per
single coordinate unit
:param center: The (x, y) center of the circle
:param density: How many points per x/y unit
:param radius: The radius of the circle
:return: List of (x, y) point grid inside the circle
"""
# Boundaries
top = center[1] + radius
bottom = center[1] - radius
left = center[0] - radius
right = center[0] + radius
# Get Points
for y in number.drange(bottom, top, 1 / density):
for x in number.drange(left, right, 1 / density):
if point_in_circle(center, radius, (x, y)):
yield (x, y)
def test_drange_greater_than_one():
eq_(list(number.drange(0, 6, 2)), [0, 2, 4, 6])
def test_drange_less_than_one():
eq_(list(number.drange(0, 2, 0.5)), [0, 0.5, 1, 1.5, 2])
