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  • C/C++求一个矩形不规则切片的切片区域坐标

    5 5 5 5 2
    5 5 5 5 2
    5 5 5 5 2
    3 3 3 3  

    如上图区所示,长 23 ,宽18,每个格子长宽均为 5,那么第一个小方框的的区域坐标为(0,0)(5,0)(0,5)(5,5)

    第一行最后一个小方块的坐标为(20,0)(22,0)(20,5)(22,5)

    第一列最后一个小方块的坐标为(0,15)(5,15)(0,18)(5,18)

    最右小角的小方块坐标为(20,15)(22,15)(20,18)(22,18)

    已知给出该大方块的 min_x = 0, min_y = 0, max_x = 22, max_y = 18, size = 5 ,数值都是以 double 类型给出。

    算出每个小方框的坐标

    代码如下:

    #include<cstdio>
    #include<algorithm>
    using namespace std;
    
    struct Point
    {
        double x;
        double y;
    };
    
    void print(Point *point);
    
    int main()
    {
        double min_x = 0;
        double min_y = 0;
        double max_x = 22;
        double max_y = 18;
    
        double size = 5;
    
        Point point[4];
    
        for (double i = min_y; i < max_y; i = min(max_y, i+size))
        {
            for (double j = min_x; j < max_x; j = min(max_x, j+size))
            {
                point[0].x = j;
                point[0].y = i;
    
                point[1].x = min(max_x, j+size);
                point[1].y = i;
    
                point[2].x = j;
                point[2].y = min(max_y, i+size);
    
                point[3].x = min(max_x, j+size);
                point[3].y = min(max_y, i+size);
    
                print(point);
            }
        }
    
        return 0;
    }
    
    void print(Point *point)
    {
        for (int i = 0; i < 4; i++)
        {
            printf("%f %f ", point[i].x, point[i].y);
        }
        printf("
    ");
    }

    运行结果:

    0.000000 0.000000 5.000000 0.000000 0.000000 5.000000 5.000000 5.000000
    5.000000 0.000000 10.000000 0.000000 5.000000 5.000000 10.000000 5.000000
    10.000000 0.000000 15.000000 0.000000 10.000000 5.000000 15.000000 5.000000
    15.000000 0.000000 20.000000 0.000000 15.000000 5.000000 20.000000 5.000000
    20.000000 0.000000 22.000000 0.000000 20.000000 5.000000 22.000000 5.000000
    0.000000 5.000000 5.000000 5.000000 0.000000 10.000000 5.000000 10.000000
    5.000000 5.000000 10.000000 5.000000 5.000000 10.000000 10.000000 10.000000
    10.000000 5.000000 15.000000 5.000000 10.000000 10.000000 15.000000 10.000000
    15.000000 5.000000 20.000000 5.000000 15.000000 10.000000 20.000000 10.000000
    20.000000 5.000000 22.000000 5.000000 20.000000 10.000000 22.000000 10.000000
    0.000000 10.000000 5.000000 10.000000 0.000000 15.000000 5.000000 15.000000
    5.000000 10.000000 10.000000 10.000000 5.000000 15.000000 10.000000 15.000000
    10.000000 10.000000 15.000000 10.000000 10.000000 15.000000 15.000000 15.000000
    15.000000 10.000000 20.000000 10.000000 15.000000 15.000000 20.000000 15.000000
    20.000000 10.000000 22.000000 10.000000 20.000000 15.000000 22.000000 15.000000
    0.000000 15.000000 5.000000 15.000000 0.000000 18.000000 5.000000 18.000000
    5.000000 15.000000 10.000000 15.000000 5.000000 18.000000 10.000000 18.000000
    10.000000 15.000000 15.000000 15.000000 10.000000 18.000000 15.000000 18.000000
    15.000000 15.000000 20.000000 15.000000 15.000000 18.000000 20.000000 18.000000
    20.000000 15.000000 22.000000 15.000000 20.000000 18.000000 22.000000 18.000000

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  • 原文地址:https://www.cnblogs.com/wanghao-boke/p/13019611.html
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