本文整理汇总了C++中TCanvas::Polygon方法的典型用法代码示例。如果您正苦于以下问题：C++ TCanvas::Polygon方法的具体用法？C++ TCanvas::Polygon怎么用？C++ TCanvas::Polygon使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类TCanvas的用法示例。
在下文中一共展示了TCanvas::Polygon方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: DrawWaterCursor
//---------------------------------------------------------------------------
void __fastcall TRxViewDlg::DrawWaterCursor(void)
{
if( !m_pRxSet ) return;
int fo = m_pRxSet->m_pDem->m_CarrierFreq;
int xx = m_rcBar[sbWATER].Left + 0.5 + (fo - m_WaterLowFQ) * m_fftXW / m_WaterWidth;
if( xx < m_rcBar[sbWATER].Left + 4 ) return;
if( xx > m_rcBar[sbWATER].Right - 4 ) return;
TCanvas *pCanvas = StatusBar->Canvas;
int fb = m_rcBar[sbWATER].Bottom - 1;
#if 0
if( (m_pRxSet->m_Mode == MODE_RTTY) || (m_pRxSet->m_Mode == MODE_U_RTTY) ){
pCanvas->Pen->Width = 3;
pCanvas->Pen->Color = MainVARI->m_tWaterColset[4].c;
int x = m_rcBar[sbWATER].Left + 0.5 + (fo - m_WaterLowFQ - 85.5) * m_fftXW / m_WaterWidth;
pCanvas->MoveTo(x, fb-4);
pCanvas->LineTo(x, fb-1);
x = m_rcBar[sbWATER].Left + 0.5 + (fo - m_WaterLowFQ + 85.5) * m_fftXW / m_WaterWidth;
pCanvas->LineTo(x, fb-1);
pCanvas->LineTo(x, fb-5);
pCanvas->Pen->Width = 1;
}
#endif
POINT pt[3];
pt[0].x = xx - 4; pt[0].y = fb;
pt[1].x = xx + 4; pt[1].y = fb;
pt[2].x = xx; pt[2].y = fb - 6;
pCanvas->Pen->Color = MainVARI->m_tWaterColset[3].c;
pCanvas->Brush->Color = MainVARI->m_tWaterColset[4].c;
pCanvas->Polygon(pt, 2);
}示例2: DrawFFT
//---------------------------------------------------------------------------
void __fastcall TClockAdjDlg::DrawFFT(BOOL fClear)
{
if( !m_pBitmapFFT ) return;
TCanvas *pCanvas = m_pBitmapFFT->Canvas;
TRect rc;
rc.Left = 0; rc.Top = 0;
rc.Right = m_fftXW; rc.Bottom = m_fftYW;
pCanvas->Brush->Color = MainVARI->m_tFFTColset[0].c;
pCanvas->Pen->Color = MainVARI->m_tFFTColset[0].c;
pCanvas->FillRect(rc);
pCanvas->Pen->Style = psDot;
int xx, y;
int fh = pCanvas->TextHeight("A");
switch(MainVARI->m_FFTVType){
case 0:
pCanvas->Pen->Color = MainVARI->m_tFFTColset[3].c;
for( y = 6; y <= 86; y += 20 ){
xx = y * m_fftYW / 100;
pCanvas->MoveTo(0, xx); pCanvas->LineTo(m_fftXW, xx);
}
break;
case 1:
pCanvas->Pen->Color = MainVARI->m_tFFTColset[3].c;
for( y = 6; y <= 66; y += 20 ){
xx = y * m_fftYW / 60;
pCanvas->MoveTo(0, xx); pCanvas->LineTo(m_fftXW, xx);
}
break;
}
#if 1
pCanvas->Font->Height = -12;
pCanvas->Font->Color = MainVARI->m_tFFTColset[2].c;
pCanvas->Pen->Color = MainVARI->m_tFFTColset[3].c;
MainVARI->DrawFreqScale(pCanvas, m_fftXW, m_fftYW, 0, 3000, fh, FALSE);
#else
int A, L;
A = 500; L = 500;
f = 0;
int f, fw;
char bf[128];
pCanvas->Font->Height = -12;
pCanvas->Font->Color = MainVARI->m_tFFTColset[2].c;
pCanvas->Pen->Color = MainVARI->m_tFFTColset[3].c;
y = 0;
for( ; f < 3000; f += A ){
xx = f * m_fftXW / 3000;
if( xx >= m_fftXW ) break;
if( !(f % 1000) || !(f % L) ){
sprintf(bf, "%u", f);
fw = pCanvas->TextWidth(bf)/2;
if( (xx - fw) > 0 ) pCanvas->TextOut(xx - fw, y, bf);
// pCanvas->MoveTo(xx, y ? 0 : fh); pCanvas->LineTo(xx, y ? m_fftYW-fh : m_fftYW);
pCanvas->MoveTo(xx, fh); pCanvas->LineTo(xx, m_fftYW);
}
else {
pCanvas->MoveTo(xx, 0); pCanvas->LineTo(xx, m_fftYW);
}
}
#endif
pCanvas->Pen->Color = clGreen;
xx = (DEMSAMPFREQ*0.5) * m_fftXW / 3000;
pCanvas->MoveTo(xx, fh); pCanvas->LineTo(xx, m_fftYW);
int rfo = m_ToneFreq;
pCanvas->Pen->Style = psSolid;
pCanvas->Pen->Color = MainVARI->m_tFFTColset[4].c;
xx = 0.5 + rfo * m_fftXW / 3000;
pCanvas->MoveTo(xx, fh); pCanvas->LineTo(xx, m_fftYW);
POINT pt[4];
pt[0].x = xx; pt[0].y = fh;
pt[1].x = xx - 3; pt[1].y = fh+3;
pt[2].x = xx; pt[2].y = fh + 6;
pt[3].x = xx + 3; pt[3].y = fh+3;
pCanvas->Brush->Color = MainVARI->m_tFFTColset[4].c;
pCanvas->Polygon(pt, 3);
if( !fClear ){
pCanvas->Pen->Style = psSolid;
pCanvas->Pen->Color = MainVARI->m_tFFTColset[1].c;
double k = double(PBoxFFT->Height)/double(MainVARI->PBoxFFT->Height);
int *pFFT = MainVARI->m_fftout;
int xo = 0;
int x, y;
if( MainVARI->m_FFTVType == 1 ){
int yo = m_fftYW * 40;
for( x = 0; x < m_fftXW; x++ ){
xx = xo + (x * m_FFTWindow / m_fftXW);
y = pFFT[xx] * k;
y = m_fftYW - ((y-yo)/60);
if( x ){
pCanvas->LineTo(x, y);
}
else {
pCanvas->MoveTo(x, y);
}
//.........这里部分代码省略.........