字符模拟正弦图形问题

[Dreamz]

有个题目要求是用字符模拟输出正弦图形,正弦函数我知道如何用,但是我不知道如何定位每一个字符的输出位置,搜了一下也没搜到解决方法,还请大家给个思路,谢谢先^^

[张赐]

什么叫用字符模拟输出？？

什么意思？？

[zy1691]

挺变态的玩法

[Dreamz]

就是像下面这样:)
###
# #
# #
# #
# #

# # #

# #
# #
# #
# #
###

[Dreamz]

呃...这出来的效果和我发帖时编辑的不一样啊...大家知道意思就行了,嘿嘿

[wuyu637]

#include <iostream>
#include <string>
#include <math.h>
#include <fstream>
int main()
{
for(int i=0;i<100;i++)
{
int temp = 20*sin((double)i/(2*3.1415))+20;
while(temp>0)
{
cout << " ";
temp --;

}
cout << "a" << endl;
}
}

[wuyu637]

int main()
{
for(int i=0;i<10000;i++)
{
int temp = 20*sin((double)i/(2*3.1415))+20;
while(temp>0)
{
cout << " ";
temp --;

}
cout << "a" << endl;
}
}

[Dreamz]

wu637朋友的代码是纵向输出的,我要的是横向输出的,不过也要谢谢^^

[jia_xiaoxin]

#include <math.h>
#include <iostream>
#include <iomanip>
using namespace std;

#define PI 3.1415926f

int main()
{
	for(float x = 0.0; x < 2 * PI; x += PI / 10.0f)
	{
		cout << std::setw(int(sin(x) * 10) + 10) << '*' << endl;
    }
    return 0;
}

[zhyinty]

#include <math.h>
#include <iostream>
#include <iomanip>
using namespace std;

#define PI 3.1415926f

int line  = 0;
char a[20][20] = {' '};
int main()
{
    for(float x = 0.0; x < 2 * PI; x += PI / 10.0f)
    {
		a[line][int(sin(x) * 10) + 10] = '*';
		line ++ ;
    }
	for (int i = 0; i< 20;i++)
	{
		for (int j = 0; j< 20;j++)
		{
			cout << a[j][i];
		}
		cout << endl;
	}
    return 0;
}

[星羽]

#include "iostream"
#include "cmath"
using namespace std;

const float Pi = 3.14159265358979323846f;
const int Width = 40;
const int Step = 5;

int main()
{
    for (int i = Step; i >= -Step; i -= 1)
    {
        int a = 0;
        int b = 0;

        if (i >= 0)
        {
            a = (int)(asinf(i / (float)Step) / (2.f * Pi) * Width);
            b = Width / 2 - a;
        }
        else
        {
            a = -(int)(asinf(i / (float)Step) / (2.f * Pi) * Width) + Width / 2;
            b = Width - (a - Width / 2);
        }

        for (int j = 0; j < Width; ++j)
        {
            if (j == a || j == b)
                cout<<"*";
            else
                cout<<" ";
        }
        cout<<endl;
    }

    return 0;
}

-------------

          *
     *         *
    *           *
  *               *
 *                 *
*                   *
                     *                 *
                      *               *
                        *           *
                         *         *
                              *

[idaretobe]

#include<iostream>
#include<fstream>
#include<cmath> // for sin()
#include<algorithm> // for stable_sort()
#include<vector>
#include<string>
#include<math.h>


using namespace std;
//-------------------------------------
struct Point{ int x,y; } zero={0,0};
bool operator<(const Point& a, const Point& b){ return a.y>b.y; }
void display(const vector<Point>& p, char ch){
for(int k=0,i=p[0].y; i>=-p[0].y; --i){
for(int n=0; k<p.size() && p[k].y==i; n=p[k++].x+1)
cout<<string(p[k].x-n,' ')<<ch;
cout<<"\n";
}
}//------------------------------------
int main(){
ifstream cin("sin.in");
char ch;
for(int period,amplitude; cin>>period>>amplitude>>ch; ){
vector<Point> p(4*period+1,zero);
for(int i=1; i<=period*2; ++i){
p[i].x = i;
p[i].y = amplitude*sin(i*asin(-1)/(2*period))+0.5;
p[period*2+i].x = period*2+i;
p[period*2+i].y = -p[i].y;
}
stable_sort(p.begin(), p.end());
display(p, ch);
}
}//====================================
在BCB中运行通过