> What is the recommended way of determining whether or not a point is within
> the dimensions of a circle?
> I'm currently at home and don't have access to the usual texts on matters such
> as this!!!
is serious, I'm wondering if you bothered to think about it for a few
minutes. If you have the circle center and radius, you just need to
determine if the distance from the center to the point is greater than
the radius. I would expect most *age children could figure this out
in a few minutes (I'm going to ask my children to solve this later this
evening to find out for sure). In any case, here is pseudo-code to do
Given a circle definition (center and radius):
circle_x, circle_y, circle_radius
And a point definition:
Determine if the point is outside the circle:
x_length = circle_x - point_x
y_length = circle_y - point_y
point_distance = square_root(x_length * x_length + y_length * y_length)
if point_distance > radius
"Proofread carefully to see if you any words out."