头文件：
#pragma once
#include <iostream>
//一个假的点类型
struct Vector3
{
float x;
float y;
float z;
}; class AABB
{
public:
AABB();
AABB(const AABB &aabb);
~AABB();
void add(const Vector3 &v);
void clear();
void makeAABB(Vector3 V[], int n); Vector3 min, max, center;
}; void aabbPrint(AABB &ab);
cpp文件
#include "AABB.h" AABB::AABB()
{
} AABB::AABB(const AABB &aabb)
{
min = aabb.min;
max = aabb.max;
center = aabb.center;
} void AABB::clear()
{
min.x = min.y = min.z = FLT_MAX;
//careful: This is not FLT_MIN, 'cause FLT_MIN is a little larger than 0,
//hence not a minus value.
max.x = max.y = max.z = -FLT_MAX;
} void AABB::add(const Vector3 &v)
{
if (v.x < min.x) min.x = v.x;
if (v.y < min.y) min.y = v.y;
if (v.z < min.z) min.z = v.z;
if (v.x > max.x) max.x = v.x;
if (v.y > max.y) max.y = v.y;
if (v.z > max.z) max.z = v.z;
} //make AABB out of Vector3 points
void AABB::makeAABB(Vector3 V[], int n)
{
if (!V) return; for (int i = ; i < n; i++)
add(V[i]); center.x = (min.x + max.x) * 0.5f;
center.y = (min.y + max.y) * 0.5f;
center.z = (min.z + max.z) * 0.5f;
} AABB::~AABB()
{
} void aabbPrint(AABB &ab)
{
std::cout<<"AABB min is: ";
ab.min.x;
ab.min.y;
ab.min.z;
std::cout<<"AABB max is: ";
ab.max.x;
ab.max.y;
ab.max.z;
std::cout<<std::endl;
}
打印什么的自己看着办，没时间搞