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Approx code for AutoZero control.

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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@2618 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
Joe Taylor 2012-09-29 19:04:35 +00:00
parent 482f160b23
commit e028d06257
3 changed files with 11 additions and 27 deletions
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2
mainwindow.cpp
View File

@ -1,4 +1,4 @@
//--------------------------------------------------------------- MainWindow
//---------------------------------------------------------------- MainWindow
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include "devsetup.h"

35
plotter.cpp
View File

@ -99,7 +99,6 @@ void CPlotter::draw(float swide[], int i0, float splot[]) //draw()
for(i=0; i<256; i++) { //Zero the histograms
m_hist1[i]=0;
m_hist2[i]=0;
}
painter2D.setPen(Qt::green);
@ -117,14 +116,14 @@ void CPlotter::draw(float swide[], int i0, float splot[]) //draw()
swide[i]=-swide[i];
}
y = 10.0*log10(swide[i]);
int y1 = 5.0*gain*(y + 29 -m_plotZero);
int y1 = 5.0*gain*(y + 37 - m_plotZero);
if (y1<0) y1=0;
if (y1>254) y1=254;
if (swide[i]>1.e29) y1=255;
m_hist1[y1]++;
painter1.setPen(m_ColorTbl[y1]);
painter1.drawPoint(i,0);
int y2 = gain*(y + 34 -m_plotZero);
int y2 = 0.7*gain*(y + 54 - m_plotZero);
if (y2<0) y2=0;
if (y2>254) y2=254;
if (swide[i]>1.e29) y2=255;
@ -140,15 +139,6 @@ void CPlotter::draw(float swide[], int i0, float splot[]) //draw()
j++;
}
for(i=0; i<NSMAX; i++) {
y = 10.0*log10(splot[i]);
int y1 = 5.0*gain*(y + 29 -m_plotZero);
if (y1<0) y1=0;
if (y1>254) y1=254;
if (splot[i]>1.e29) y1=255;
m_hist2[y1]++;
}
if(swide[0]>1.0e29) m_line=0;
m_line++;
if(m_line == 13) {
@ -413,28 +403,23 @@ void CPlotter::mouseDoubleClickEvent(QMouseEvent *event) //mouse2click
int CPlotter::autoZero() //autoZero()
{
int w = m_Size.width();
m_z1=0;
m_z2=0;
int sum1=0;
for(int i=0; i<256; i++) {
sum1 += m_hist1[i];
if(sum1 > m_Size.width()/2) {
if(sum1 > int(0.7*w)) {
m_z1=i;
break;
}
}
int sum2=0;
for(int i=0; i<256; i++) {
sum2 += m_hist2[i];
if(sum2 > 16384) {
m_z2=i;
break;
}
}
double gain = pow(10.0,0.05*(m_plotGain+7));
// double dz1 = (m_z1-38)/(5.0*gain);
double dz2 = (m_z2-28)/(5.0*gain);
if(m_z2 < 255) m_plotZero = int(m_plotZero + dz2 + 0.5);
if(m_z1 < 255) {
double dz1 = m_z1/(5.0*gain);
m_plotZero = int(m_plotZero + dz1 + 0.5);
if(m_z1==0) m_plotZero = m_plotZero - 5;
}
return m_plotZero;
}

1
plotter.h
View File

@ -98,7 +98,6 @@ private:
char m_sutc[5];
qint32 m_line;
qint32 m_hist1[256];
qint32 m_hist2[256];
qint32 m_z1;
qint32 m_z2;
qint32 m_fSample;