三维空间中两点间的距离

admin1

设两点为 P1(x1,y1,z1), P2(x2,y2,z2), 则两点间的距离为：

float distance=CalTwoPointDistance(x1,y1,z1,x2,y2,z2);
float CalTwoPointDistance(float x1,float y1,float z1,float x2,float y2,float z2)
{
        float distance=0.0f;
        distance=sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2)+(z1-z2)*(z1-z2));
        return distance;
}