确定蜂巢上两点之间的最短距离。给定两点的编号，确定两点之间的距离。-Determine the honeycomb on the shortest distance between two points. Given two numbers, determine the distance between two points.

在2维和3维的空间里求出两点之间的距离。-In the 2-D and 3-dimensional space, find the distance between two points.

图片的拖拉和放大缩小，运用的是手势识别检测两点之间的距离-Image drag and zoom using gesture recognition and detection distance between two points