From 5ee333a0e9dfaec3a65290d484ceeaa81e0e4edf Mon Sep 17 00:00:00 2001
From: Joe Taylor <k1jt@arrl.org>
Date: Wed, 26 Sep 2012 17:39:43 +0000
Subject: [PATCH] Upper waterfall's frequency scale now (more or less) correct.

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@2600 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
---
 plotter.cpp   | 72 +++++++++++++--------------------------------------
 plotter.h     |  1 +
 widegraph.cpp |  5 ++--
 wsjtx.pro     |  2 +-
 4 files changed, 23 insertions(+), 57 deletions(-)

diff --git a/plotter.cpp b/plotter.cpp
index 1b62894a6..120de668d 100644
--- a/plotter.cpp
+++ b/plotter.cpp
@@ -15,8 +15,9 @@ CPlotter::CPlotter(QWidget *parent) :                  //CPlotter Constructor
   setAttribute(Qt::WA_OpaquePaintEvent, false);
   setAttribute(Qt::WA_NoSystemBackground, true);
 
-  m_StartFreq = 100;
-  m_nSpan=65;                    //Units: kHz
+  m_CenterFreq = 1500;
+  m_StartFreq = 1000;
+  m_nSpan=1000;                    //Units: Hz
   m_fSpan=(float)m_nSpan;
   m_hdivs = HORZ_DIVS;
   m_FreqUnits = 1;
@@ -30,7 +31,8 @@ CPlotter::CPlotter(QWidget *parent) :                  //CPlotter Constructor
   m_Size = QSize(0,0);
   m_fQSO = 125;
   m_line = 0;
-  m_fSample = 96000;
+  m_fSample = 12000;
+  m_nsps=7168;
   m_paintAllZoom = false;
 }
 
@@ -256,9 +258,13 @@ void CPlotter::DrawOverlay()                                 //DrawOverlay()
   painter0.setFont(Font);
   painter0.setPen(Qt::black);
 
-  m_binsPerPixel = m_nSpan * 32768.0/(w*0.001*m_fSample) + 0.5;
-  double FreqPerDiv=5.0;
-  double df = m_binsPerPixel*0.001*m_fSample/32768.0;
+  double fftBinWidth=12000.0/m_nsps;
+//  m_binsPerPixel = m_nSpan * 32768.0/(w*0.001*m_fSample) + 0.5;
+  m_binsPerPixel = (m_nSpan/fftBinWidth)/w + 0.5;
+  if(m_binsPerPixel < 1) m_binsPerPixel=1;
+  double FreqPerDiv=50.0;
+  double df = m_binsPerPixel*fftBinWidth;
+
   m_hdivs = w*df/FreqPerDiv + 0.9999;
   m_fSpan = w*df;
   m_ScalePixmap.fill(Qt::white);
@@ -371,58 +377,14 @@ void CPlotter::DrawOverlay()                                 //DrawOverlay()
 
 void CPlotter::MakeFrequencyStrs()                       //MakeFrequencyStrs
 {
-  float StartFreq = m_StartFreq;
   float freq;
   int i,j;
-  int FreqPerDiv=5;
+  int FreqPerDiv=50;
 
-  if(m_hdivs > 100) {
-    m_FreqUnits = 1;
-    FreqPerDiv = 200;
-    int w = m_WaterfallPixmap.width();
-    float df=m_fSample/32768.0;
-    StartFreq = -w*df/2;
-    int n=StartFreq/FreqPerDiv;
-    StartFreq=n*200;
-    m_ZoomStartFreq = (int)StartFreq;
-  }
-  int numfractdigits = (int)log10((double)m_FreqUnits);
-
-  if(1 == m_FreqUnits) {
-    //if units is Hz then just output integer freq
-    for(int i=0; i<=m_hdivs; i++) {
-      freq = StartFreq/(float)m_FreqUnits;
-      m_HDivText[i].setNum((int)freq);
-      StartFreq += FreqPerDiv;
-    }
-    return;
-  }
-  //here if is fractional frequency values
-  //so create max sized text based on frequency units
   for(int i=0; i<=m_hdivs; i++) {
-    freq = StartFreq/(float)m_FreqUnits;
-    m_HDivText[i].setNum(freq,'f', numfractdigits);
-    StartFreq += FreqPerDiv;
-  }
-  //now find the division text with the longest non-zero digit
-  //to the right of the decimal point.
-  int max = 0;
-  for(i=0; i<=m_hdivs; i++) {
-    int dp = m_HDivText[i].indexOf('.');
-    int l = m_HDivText[i].length()-1;
-    for(j=l; j>dp; j--) {
-      if(m_HDivText[i][j] != '0')
-        break;
-    }
-    if( (j-dp) > max)
-      max = j-dp;
-  }
-  //truncate all strings to maximum fractional length
-  StartFreq = m_CenterFreq - 0.5*m_fSpan;
-  for( i=0; i<=m_hdivs; i++) {
-    freq = (float)StartFreq/(float)m_FreqUnits;
-    m_HDivText[i].setNum(freq,'f', max);
-    StartFreq += FreqPerDiv;
+    freq = m_StartFreq + i*FreqPerDiv;
+    m_HDivText[i].setNum((int)freq);
+    //      StartFreq += FreqPerDiv;
   }
 }
 
@@ -469,11 +431,13 @@ int CPlotter::getPlotGain()                               //getPlotGain()
 
 void CPlotter::SetCenterFreq(int f)                   //setCenterFreq()
 {
+  /*
 // f is the integer kHz portion of cfreq, from Linrad packets
   if(f<0) f=m_nkhz;
   int ns = (f+m_FreqOffset-0.5*m_fSpan)/5.0 + 0.5;
   double fs = 5*ns;
   m_CenterFreq = fs + 0.5*m_fSpan;
+  */
 }
 
 qint64 CPlotter::centerFreq()                             //centerFreq()
diff --git a/plotter.h b/plotter.h
index 4e3763a32..609975507 100644
--- a/plotter.h
+++ b/plotter.h
@@ -35,6 +35,7 @@ public:
   qint32  m_DF;
   qint32  m_tol;
   qint32  m_fCal;
+  qint32  m_nsps;
 
   void draw(float sw[], int i0, float splot[]);		//Update the waterfalls
   void SetRunningState(bool running);
diff --git a/widegraph.cpp b/widegraph.cpp
index a3bb5cbd9..70059cfb3 100644
--- a/widegraph.cpp
+++ b/widegraph.cpp
@@ -104,8 +104,8 @@ void WideGraph::dataSink2(float s[], int nkhz, int ihsym, int ndiskdata,
     n=0;
 
     int w=ui->widePlot->plotWidth();
-    qint64 sf = nkhz + ui->widePlot->freqOffset() - 0.5*w*nbpp*df/1000.0;
-    if(sf != ui->widePlot->startFreq()) ui->widePlot->SetStartFreq(sf);
+//    qint64 sf = nkhz + ui->widePlot->freqOffset() - 0.5*w*nbpp*df/1000.0;
+//    if(sf != ui->widePlot->startFreq()) ui->widePlot->SetStartFreq(sf);
     int i0=16384.0+(ui->widePlot->startFreq()-nkhz+1.27046+0.001*m_fCal) *
         1000.0/df + 0.5;
     i0=0;                            //###
@@ -286,4 +286,5 @@ void WideGraph::setPeriod(int ntrperiod, int nsps)
 {
   m_TRperiod=ntrperiod;
   m_nsps=nsps;
+  ui->widePlot->m_nsps=nsps;
 }
diff --git a/wsjtx.pro b/wsjtx.pro
index d6648486d..c88a54c89 100644
--- a/wsjtx.pro
+++ b/wsjtx.pro
@@ -6,7 +6,7 @@
 
 QT       += core gui network
 CONFIG   += qwt thread
-CONFIG   += console
+#CONFIG   += console
 
 TARGET = wsjtx
 VERSION = 0.2