directionProportionWeight method

Map<Direction, int> directionProportionWeight()

统计左上，右上，右下，左下 4个方向的权重占比

Implementation

Map<Direction, int> directionProportionWeight() {
  final list = <Direction, int>{};
  longestStretchWithRotateX()?.go(
    (it) {
      it.forEach((element) {
        list[element] ??= 0;
        list[element] = list[element]! + 1;
      });
    },
  );
  longestStretchWithRotateY()?.go((it) {
    it.forEach((element) {
      list[element] ??= 0;
      list[element] = list[element]! + 1;
    });
  });
  return list;
}