算法用于计算2的3维点之间的距离是多少？ [英] Algorithm for calculating a distance between 2 3-dimensional points?

问题描述

我有两个3-D分结果
例如：

I have two 3-D points.
Example:

float[] point1 = new float[3] {1.3919023, 6.12837912, 10.391283};
float[] point2 = new float[3] {48.3818, 38.38182, 318.381823};

任何一种算法来计算点之间浮动的距离的想法？

Anyone an idea for an algorithm to calculate the distance in float between the points?

推荐答案

两个3D点之间的欧氏距离为：

The Euclidean distance between two 3D points is:

float deltaX = x1 - x0;
float deltaY = y1 - y0;
float deltaZ = z1 - z0;

float distance = (float) Math.Sqrt(deltaX * deltaX + deltaY * deltaY + deltaZ * deltaZ);

和n维（未经测试和脆弱溢出）：

And in N dimensions (untested and vulnerable to overflow):

float DistanceN(float[] first, float[] second) {
  var sum = first.Select((x, i) => (x - second[i]) * (x - second[i])).Sum();
  return Math.Sqrt(sum);
}

编辑：我更喜欢邮编解决方案发表如下dasblinkenlight！

I much prefer the Zip solution posted by dasblinkenlight below!

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