squaredDistanceTo method Null safety

T squaredDistanceTo(
  1. Point<T> other
)

Returns the squared distance between this and other.

Squared distances can be used for comparisons when the actual value is not required.

Example:

var squaredDistance =
    const Point(0, 0).squaredDistanceTo(const Point(0, 0)); // 0.0
squaredDistance =
    const Point(0, 0).squaredDistanceTo(const Point(10, 0)); // 100
squaredDistance =
    const Point(0, 0).squaredDistanceTo(const Point(0, -10)); // 100
squaredDistance =
    const Point(-10, 0).squaredDistanceTo(const Point(100, 0)); // 12100

Implementation

T squaredDistanceTo(Point<T> other) {
  var dx = x - other.x;
  var dy = y - other.y;
  return (dx * dx + dy * dy) as T;
}