pub fn two_point_conical_gradient_t(
focal: Offset,
focal_radius: f32,
center: Offset,
radius: f32,
point: Offset,
) -> Option<f32>Expand description
The raw parameter of Flutter’s focal radial gradient (Skia’s two-point
conical gradient from the circle (focal, focal_radius) at 0.0 to
(center, radius) at 1.0): the largest t whose interpolated circle,
with a non-negative radius, passes through point. None where no such
circle exists, which paints nothing.