将一维数组转化成曲线图 - C语言论坛

#include <Windows.h> #include <ctime> #include <conio.h> const int MaxValue(100); const RECT Border = { 10, 10, 620, 350 }; const POINT Origin = { 20, 170 }; void CreateData(int* pData, const size_t Count); void wmain(void) { int Data[50]; CreateData(Data, _countof(Data)); // 你修改Data[]的数据就可以了 HDC hDC(GetDC(GetConsoleWindow())); HPEN hPen(CreatePen(PS_SOLID, 1, RGB(0, 255, 0))); HBRUSH hBrush(CreateSolidBrush(RGB(0, 0, 0))); SelectObject(hDC, hPen); SelectObject(hDC, hBrush); Rectangle(hDC, Border.left, Border.top, Border.right, Border.bottom); hPen = CreatePen(PS_SOLID, 1, RGB(0, 255, 255)); SelectObject(hDC, hPen); MoveToEx(hDC, Origin.x, Origin.y, NULL); LineTo(hDC, Border.right - 10, Origin.y); hPen = CreatePen(PS_SOLID, 1, RGB(255, 255, 0)); SelectObject(hDC, hPen); MoveToEx(hDC, Origin.x, Origin.y - Data[0], NULL); for (size_t i = 1; i != _countof(Data); ++i) { LineTo(hDC, Origin.x + i * 10, Origin.y - Data[i]); } _getwch(); DeleteObject(hBrush); DeleteObject(hPen); ReleaseDC(NULL, hDC); } void CreateData(int* pData, const size_t Count) { srand(static_cast<unsigned int>(_time32(NULL))); rand(); for (size_t i = 0; i < Count; ++i) { *pData++ = static_cast<int>(MaxValue * static_cast<double>(rand()) / (RAND_MAX + 1)); } }

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得分:0

程序代码：

程序基本看懂了，得到了我想要的曲线
主程序（作图）：

#include <Windows.h>
#include <ctime>
#include <conio.h>
const int MaxValue(100);
const RECT Border = { 20, 20, 620, 350 };//const RECT Border = { 10, 10, 620, 350 };
const POINT Origin = { 20, 170 };
const POINT Sp = { 20, 70 };
#define N 500
struct arrar stepmain();
struct arrar
{
    float y[N];
};
void wmain(void)
{
    float Data[N];
    struct arrar p;
    p=stepmain();
    int i;
    for(i=0;i<N;i++)
    {
       
        Data[i]=p.y[i];
       
    }

    HDC hDC(GetDC(GetConsoleWindow()));
    HPEN hPen(CreatePen(PS_SOLID, 1, RGB(233, 19, 7)));
    HBRUSH hBrush(CreateSolidBrush(RGB(52, 184, 72)));
    SelectObject(hDC, hPen);
    SelectObject(hDC, hBrush);
    Rectangle(hDC, Border.left, Border.top, Border.right, Border.bottom);
    hPen = CreatePen(PS_SOLID, 1, RGB(54, 54, 182));
    SelectObject(hDC, hPen);
    MoveToEx(hDC, Origin.x, Origin.y, NULL);
    LineTo(hDC, Border.right, Origin.y);
    hPen = CreatePen(PS_SOLID, 1, RGB(98, 24, 102));
    SelectObject(hDC, hPen);
    MoveToEx(hDC, Sp.x, Sp.y, NULL);
    LineTo(hDC, Border.right, Sp.y);
    hPen = CreatePen(PS_SOLID, 1, RGB(255, 255, 0));
    SelectObject(hDC, hPen);
    MoveToEx(hDC, Origin.x, Origin.y - Data[0], NULL);
    for (size_t i = 1; i != _countof(Data); ++i)
    {
        LineTo(hDC, Origin.x + i * 0.7, Origin.y - Data[i]);
    }

    _getwch();

    DeleteObject(hBrush);
    DeleteObject(hPen);
    ReleaseDC(NULL, hDC);
} 



 子程序（提供Data[]数据）：
#include<stdio.h>
#include<conio.h>
#include<math.h>
#include<stdlib.h>
#define ts 0.001
#define N 500
#define pi 3.14
float yd(int i,int s);
typedef struct arrar
{
    float y[N];
};
struct arrar stepmain()
{
    arrar data;
    float den[4]={1.0000,-2.9063,2.8227,-0.9164};
    float num[4]={ 0,0.0853*1.0e-003,0.3338*1.0e-003,0.0817*1.0e-003};
    float kp,ki,kd;
    float cu[3]={0,0,0};
    float cy[3]={0,0,0};
    float x[3]={0,0,0};
    float error_1=0;
    float u[N],error[N];
    int s,i;
    printf("输入数字1为step signal、2为square wave signal\n");
    scanf("%d",&s);
    if((s<1)||(s>3))
        {
            printf("请按要求输入1-2的整数，选择跟踪信号类型\n");
    return data;
    }
    if(s==1)
        {
            kp=0.5;ki=0.001;kd=0.001;
    }
       else
       {
           kp=0.5;ki=0.001;kd=0.001;
    }
        for(i=0;i<N;i++)
    {
        u[i]=kp*x[0]+kd*x[1]+ki*x[2];
        u[i]=(u[i]>10?10:u[i]);
        u[i]=(u[i]<-10?-10:u[i]);
        data.y[i]=-den[1]*cy[0]-den[2]*cy[1]-den[3]*cy[2]+num[1]*cu[0]+num[2]*cu[1]+num[3]*cu[2];
        //printf("y[%d]=%f  u[%d]=%f\n",i,y[i],i,u[i]);
        error[i]=yd(i,s)-data.y[i];
        cu[2]=cu[1];cu[1]=cu[0];cu[0]=u[i];
        cy[2]=cy[1];cy[1]=cy[0];cy[0]=data.y[i];
        x[0]=error[i];
        x[1]=(error[i]-error_1)/ts;
        x[2]+=error[i]*ts;
        error_1=error[i];
    }
        return data;
}
    float yd(int i,int s)
  {
      float y;
        if(s==1)
        {
            y=100;
            return y;
        }
        else
            {
                y=100*sin(8*pi*i*ts);
                return y;
            }
    }

运行效果图，不知道怎么上传不了了，大家可以自己试试
谢谢斑竹

[ 本帖最后由 kyauto 于 2012-3-28 20:50 编辑 ]