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Merge pull request #1464 from srcejon/spectrum_alignment

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Align spectrum with frequency scale
This commit is contained in:
Edouard Griffiths 2022-10-03 14:09:54 +02:00 committed by GitHub
commit 8843a8cfbb
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 42 additions and 23 deletions
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65
sdrgui/gui/glspectrumview.cpp
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@ -1140,19 +1140,6 @@ void GLSpectrumView::paintGL()
}
}
}
// draw rect around
{
GLfloat q3[] {
1, 1,
0, 1,
0, 0,
1, 0
};
QVector4D color(1.0f, 1.0f, 1.0f, 0.5f);
m_glShaderSimple.drawContour(m_glHistogramBoxMatrix, color, q3, 4);
}
}
// paint left scales (time and power)
@ -1342,9 +1329,14 @@ void GLSpectrumView::paintGL()
q3[4*i+2] = (GLfloat)i;
q3[4*i+3] = v;
}
// Replicate Nyquist sample to end of positive side
q3[4*m_nbBins] = (GLfloat) m_nbBins;
q3[4*m_nbBins+1] = q3[1];
q3[4*m_nbBins+2] = (GLfloat) m_nbBins;
q3[4*m_nbBins+3] = q3[3];
QVector4D color(0.5f, 0.0f, 0.0f, (float) m_displayTraceIntensity / 100.0f);
m_glShaderSimple.drawSurfaceStrip(m_glHistogramSpectrumMatrix, color, q3, 2*m_nbBins);
m_glShaderSimple.drawSurfaceStrip(m_glHistogramSpectrumMatrix, color, q3, 2*(m_nbBins+1));
}
// Max hold line
{
@ -1363,9 +1355,12 @@ void GLSpectrumView::paintGL()
q3[2*i] = (Real) i;
q3[2*i+1] = v;
}
// Replicate Nyquist sample to end of positive side
q3[2*m_nbBins] = (GLfloat) m_nbBins;
q3[2*m_nbBins+1] = q3[1];
QVector4D color(1.0f, 0.0f, 0.0f, (float) m_displayTraceIntensity / 100.0f);
m_glShaderSimple.drawPolyline(m_glHistogramSpectrumMatrix, color, q3, m_nbBins);
m_glShaderSimple.drawPolyline(m_glHistogramSpectrumMatrix, color, q3, m_nbBins+1);
}
}
@ -1394,12 +1389,17 @@ void GLSpectrumView::paintGL()
q3[4*i+2] = (GLfloat)i;
q3[4*i+3] = v;
}
// Replicate Nyquist sample to end of positive side
q3[4*m_nbBins] = (GLfloat) m_nbBins;
q3[4*m_nbBins+1] = q3[1];
q3[4*m_nbBins+2] = (GLfloat) m_nbBins;
q3[4*m_nbBins+3] = q3[3];
QVector4D color(1.0f, 1.0f, 0.25f, (float) m_displayTraceIntensity / 100.0f);
if (m_spectrumStyle == SpectrumSettings::Gradient) {
m_glShaderColorMap.drawSurfaceStrip(m_glHistogramSpectrumMatrix, q3, 2*m_nbBins, bottom, 0.75f);
m_glShaderColorMap.drawSurfaceStrip(m_glHistogramSpectrumMatrix, q3, 2*(m_nbBins+1), bottom, 0.75f);
} else {
m_glShaderSimple.drawSurfaceStrip(m_glHistogramSpectrumMatrix, color, q3, 2*m_nbBins);
m_glShaderSimple.drawSurfaceStrip(m_glHistogramSpectrumMatrix, color, q3, 2*(m_nbBins+1));
}
}
@ -1427,6 +1427,9 @@ void GLSpectrumView::paintGL()
m_peakFinder.push(m_currentSpectrum[i], i == m_nbBins - 1);
}
}
// Replicate Nyquist sample to end of positive side
q3[2*m_nbBins] = (GLfloat) m_nbBins;
q3[2*m_nbBins+1] = q3[1];
QVector4D color;
if (m_spectrumStyle == SpectrumSettings::Gradient) {
@ -1434,7 +1437,7 @@ void GLSpectrumView::paintGL()
} else {
color = QVector4D(1.0f, 1.0f, 0.25f, (float) m_displayTraceIntensity / 100.0f);
}
m_glShaderSimple.drawPolyline(m_glHistogramSpectrumMatrix, color, q3, m_nbBins);
m_glShaderSimple.drawPolyline(m_glHistogramSpectrumMatrix, color, q3, m_nbBins+1);
if (m_histogramFindPeaks) {
m_peakFinder.sortPeaks();
@ -1701,6 +1704,22 @@ void GLSpectrumView::paintGL()
}
}
// paint rect around histogram (do last, so on top of filled spectrum)
if (m_displayHistogram || m_displayMaxHold || m_displayCurrent)
{
{
GLfloat q3[] {
1, 1,
0, 1,
0, 0,
1, 0
};
QVector4D color(1.0f, 1.0f, 1.0f, 0.5f);
m_glShaderSimple.drawContour(m_glHistogramBoxMatrix, color, q3, 4);
}
}
// Paint info line
{
GLfloat vtx1[] = {
@ -2597,7 +2616,7 @@ void GLSpectrumView::applyChanges()
1.0f - ((float)(2*histogramTop) / (float) height())
);
m_glHistogramSpectrumMatrix.scale(
((float) 2 * (width() - m_leftMargin - m_rightMargin)) / ((float) width() * (float)(m_nbBins - 1)),
((float) 2 * (width() - m_leftMargin - m_rightMargin)) / ((float) width() * (float)(m_nbBins)),
((float) 2*m_histogramHeight / height()) / m_powerRange
);
@ -2726,7 +2745,7 @@ void GLSpectrumView::applyChanges()
1.0f - ((float)(2*histogramTop) / (float) height())
);
m_glHistogramSpectrumMatrix.scale(
((float) 2 * (width() - m_leftMargin - m_rightMargin)) / ((float) width() * (float)(m_nbBins - 1)),
((float) 2 * (width() - m_leftMargin - m_rightMargin)) / ((float) width() * (float)(m_nbBins)),
((float) 2*(height() - m_topMargin - m_frequencyScaleHeight)) / (height()*m_powerRange)
);
@ -3243,10 +3262,10 @@ void GLSpectrumView::applyChanges()
m_histogram = new quint8[100 * m_nbBins];
memset(m_histogram, 0x00, 100 * m_nbBins);
m_q3FFT.allocate(2*m_nbBins);
m_q3FFT.allocate(2*(m_nbBins+1));
m_q3ColorMap.allocate(4*m_nbBins);
std::fill(m_q3ColorMap.m_array, m_q3ColorMap.m_array+4*m_nbBins, 0.0f);
m_q3ColorMap.allocate(4*(m_nbBins+1));
std::fill(m_q3ColorMap.m_array, m_q3ColorMap.m_array+4*(m_nbBins+1), 0.0f);
}
if (fftSizeChanged || windowSizeChanged)