getEdgeMidpoint method

Offset getEdgeMidpoint(
  1. int edgeIndex
)

获取指定边的中点（0-5）

Implementation

Offset getEdgeMidpoint(int edgeIndex) {
  final corners = getCorners();
  final corner1 = corners[edgeIndex % 6];
  final corner2 = corners[(edgeIndex + 1) % 6];
  return Offset((corner1.dx + corner2.dx) / 2, (corner1.dy + corner2.dy) / 2);
}