本文整理汇总了C++中PlotLine::setData方法的典型用法代码示例。如果您正苦于以下问题：C++ PlotLine::setData方法的具体用法？C++ PlotLine::setData怎么用？C++ PlotLine::setData使用的例子？那么, 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PlotLine的用法示例。
在下文中一共展示了PlotLine::setData方法的1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: detrend
PlotLine * LOWPASS::getLowpass (PlotLine *in, double fre, double wid)
{
PlotLine *out = new PlotLine;
if (in->getSize() == 0)
return out;
// ----------------------------------------------------------------------
double slope = 0; // will be modified on call to detrend
double intercept = 0;
int length = 0; // original caller size
int n = 0; // size raised to next power of 2 for fft
int i = 0;
length = in->getSize();
// Detrend input series
PlotLine *series = detrend(in, slope, intercept, true);
// Raise length to next power of 2, pad with zero
PlotLine *series2 = raise2Power(series, 0);
n = series2->getSize();
//qtsFFT fft(n); // construct fft object
fft = new qtsFFT(n);
// do fft
PlotLine * fftFreq = fft->do_FFTqts(series2);
//PlotLine * fftFreq = fft.do_FFTqts(series2);
// apply low pass filter
double f = 0;
double dist = 0;
double wt = 0;
int halfn = n/2;
double freqSave = fftFreq->getData(halfn);
for (i = 0 ; i < halfn ; i++)
{
f = (double) i / (double) n ; // Frequency
if (f <= fre) // Flat response
wt = 1.0 ;
else
{
dist = (f - fre) / wid;
wt = exp ( -dist * dist ) ;
}
fftFreq->setData(i, fftFreq->getData(i) * wt) ;
fftFreq->setData(halfn + i, fftFreq->getData(halfn + i) * wt) ;
}
dist = (0.5 - fre) / wid; // Do Nyquist in fftFreq[0]
fftFreq->setData(halfn, freqSave * exp ( -dist * dist )) ;
// Do inverse FFT to recover real domain
PlotLine *fftReal = fft->do_iFFTqts(fftFreq);
//PlotLine *fftReal = fft.do_iFFTqts(fftFreq);
// Retrend input series, n.b. original length
PlotLine *series3 = detrend(fftReal, slope, intercept, false);
for (i = 0; i < length; i++)
out->append(series3->getData(i));
delete series;
delete series2;
delete series3;
delete fftReal;
delete fftFreq;
delete fft;
return out;
}