核数据处理课程设计报告(3)

for(i=0;i<2048;i++) {

fprintf(fp,\

printf(\

}

if((fp=fopen(\{ }

for(i=0;i<2048;i++) {

b[i][0]=a[i][0];

b[i][1]=a[i][1];

fprintf(fp,\printf(\

printf(\ } 2.3 任务效果

} fclose(fp);

3、按钮实现数据的读写

3.1 任务要求

编辑程序。实现数据的读写。

3.2 任务步骤 3.2.1新建C++文档。 3.2.2输入程序并运行。 void CShiyanDlg::OnDushuju()

{

// TODO: Add your control notification handler code here FILE *fp;

int datanum=0,data[2048]; float data_ph[2048]; int i;

int data1,data2;

if((fp=fopen(\{

printf(\

exit(0); }

while(!feof(fp))

{

}

fscanf(fp,\data[datanum++]=data2; fscanf(fp,\

for(i=0;i<2048;i++) 0;

}

printf(\{

if(i<2||i>2045)

data_ph[i]=data[i];

else

data_ph[i]=(data[i-2]+4*data[i-1]+6*data[i]+4*data[i+1]+data[i+2])*1.0/16.

fclose(fp);

if((fp=fopen(\

{ } 3.3 任务效果

}

for(i=0;i<2048;i++) { } fclose(fp);

fprintf(fp,\printf(\exit(0);

4、显示图谱

4.1 任务要求

设计一个对话框，编辑程序。实现图谱的显示。 4.2 任务步骤

4.2.1编辑一个对话框并在对话框内编辑按钮。 4.2.2分别对每个按钮进行编程。 void CShiyanDlg::OnYuantu()

{

double xViewport,yViewport;

int max;

CWnd *pWnd=GetDlgItem(IDC_P1);

CDC *pDC =pWnd->GetDC();

pDC->SetMapMode(MM_ANISOTROPIC);

CRect rect;

double scale;

GetDlgItem(IDC_P1)->GetWindowRect(&rect);

scale=25.4*10/pDC->GetDeviceCaps(LOGPIXELSX); CDC MemDC;

CBitmap MemBitmap;

MemDC.CreateCompatibleDC(NULL);

MemBitmap.CreateCompatibleBitmap(pDC,rect.Width(),rect.Height()); MemDC.FillSolidRect(0,0,rect.Width(),rect.Height(),RGB(255,255,255)); max=data[0];

for(int i=1;i<2048;i++)

{if (data[i]>max ) max=data[i]; }

for ( i = 0;i<2048;i++) {

xViewport = (i+1)*rect.Width()/2048;

yViewport = (0.67*data[i]*rect.Height())/max+10;

pDC->SetPixel(xViewport,rect.Height()-yViewport-1,RGB(255,0,0)); pDC->BitBlt(0,0,rect.Width(),rect.Height(),&MemDC,0,0,SRCCOPY);

}

MemBitmap.DeleteObject(); MemDC.DeleteDC(); }

void CShiyanDlg::OnWudianpinghua()

pDC->DeleteDC();

{

double xViewport,yViewport; float max;

CWnd *pWnd=GetDlgItem(IDC_P2);

CDC *pDC =pWnd->GetDC();

pDC->SetMapMode(MM_ANISOTROPIC);

CRect rect;

double scale;

GetDlgItem(IDC_P2)->GetWindowRect(&rect);

scale=25.4*10/pDC->GetDeviceCaps(LOGPIXELSX); CDC MemDC;

CBitmap MemBitmap;

MemDC.CreateCompatibleDC(NULL);

MemBitmap.CreateCompatibleBitmap(pDC,rect.Width(),rect.Height()); MemDC.FillSolidRect(0,0,rect.Width(),rect.Height(),RGB(255,255,255)); max=data_ph[0];

for(int i=1;i<2048;i++)

{if (data_ph[i]>max ) max=data_ph[i]; }

for ( i = 0;i<2048;i++) {

xViewport = (i+1)*rect.Width()/2048;

yViewport = (0.67*data_ph[i]*rect.Height())/max+10;

pDC->SetPixel(xViewport,rect.Height()-yViewport-1,RGB(255,0,0))； }

pDC->BitBlt(0,0,rect.Width(),rect.Height(),&MemDC,0,0,SRCCOPY); MemBitmap.DeleteObject(); MemDC.DeleteDC(); }

pDC->DeleteDC();