compute()

vec2f fl::CirclePath::compute ( float alpha )

overridevirtual

Implements fl::XYPathGenerator.

Definition at line 41 of file xypath_impls.cpp.

                                     {
    // α in [0,1] → (x,y) on the unit circle [-1, 1]
    float t = alpha * 2.0f * PI;
    float x = cosf(t);
    float y = sinf(t);
    return vec2f(x, y);
}

References PI, t, x, and y.