//

// 程序名称：实验4-1

// 功    能：实现预设图像的三视图显示

// 编译环境：VS2019，EasyX_20220116

// 最后修改：2022-4-8

#include

#include

#include

#include

using namespace std;

//和分割线之间的距离

const int gap = 50;

//预设三维体的点坐标

int X[33] = { 0,0,0,0,0,0,0,0,100,100,0,100,100,100,100,100,100,100,100,0,0,0,0,100,100,100,100,0,0,0,0,100,100 };

int Y[33] = { 0,0,250,250,200,150,0,0,0,0,0,0,150,200,250,250,0,0,150,150,0,150,200,200,150,200,250,250,200,250,250,250,250 };

int Z[33]= { 100,0,0,50,50,100,100,0,0,100,100,100,100,50,50,0,0,100,100,100,100,100,50,50,100,50,50,50,50,50,0,0,50 };

//顶点总数

const int num = 33;

//三视图实现函数

void fun() {

    //正视图

    POINT* front = new POINT[num];

    for (int i = 0; i < num; i++) {

         front[i].x = X[i] + 500 + gap;

         front[i].y = 350 - Z[i] - gap;

    }

    //侧视图

    POINT* side = new POINT[num];

    for (int i = 0; i < num; i++) {

         side[i].x = Y[i] + 250 - gap;

         side[i].y = 350 - Z[i] - gap;

    }

    //俯视图

    POINT* up = new POINT[num];

    for (int i = 0; i < num; i++) {

         up[i].x = X[i] + 500 + gap;

         up[i].y = 600 - Y[i] + gap;

    }

    setcolor(YELLOW);

    for (int i = 0; i < num - 1; i++) {

         line(front[i].x, front[i].y, front[i + 1].x, front[i + 1].y);

         line(side[i].x, side[i].y, side[i + 1].x, side[i + 1].y);

         line(up[i].x, up[i].y, up[i + 1].x, up[i + 1].y);

    }

    free(front);

    free(side);

    free(up);

}

int main() {

    initgraph(1000, 700);

    line(0, 350, 1000, 350);

    line(500, 0, 500, 700);

    fun();

    _getch();

    closegraph();

    return 0;

}