VE7UWU/sdrangel
1
0
Fork 0
mirror of https://github.com/f4exb/sdrangel.git synced 2026-07-29 13:34:13 -04:00
Code Issues Projects Releases Wiki Activity

Make the low cutoff frequency of the SSB filter variable. Change spectrum overlay accordingly.

Browse Source
This commit is contained in:
f4exb
2015-05-12 21:50:02 +02:00
parent e15f4f26f1
commit d395ba24c7
10 changed files with 253 additions and 128 deletions
Download Patch File Download Diff File Expand all files Collapse all files
sdrbase/gui/glspectrum.cpp
+48 -40
View File
@@ -551,20 +551,10 @@ void GLSpectrum::paintGL()
// paint channels
if(m_mouseInside) {
// Effective BW overlays
for(int i = 0; i < m_channelMarkerStates.size(); ++i) {
ChannelMarkerState* dv = m_channelMarkerStates[i];
if(dv->m_channelMarker->getVisible()) {
/*
ChannelMarker::sidebands_t sidebands = dv->m_channelMarker->getSidebands();
float fcLineRelativePos;
if (sidebands == ChannelMarker::usb) {
fcLineRelativePos = 0.0;
} else if (sidebands == ChannelMarker::lsb) {
fcLineRelativePos = 1.0;
} else {
fcLineRelativePos = 0.5;
}
*/
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glColor4f(dv->m_channelMarker->getColor().redF(), dv->m_channelMarker->getColor().greenF(), dv->m_channelMarker->getColor().blueF(), 0.3f);
@@ -577,11 +567,22 @@ void GLSpectrum::paintGL()
glVertex2f(1, 1);
glVertex2f(0, 1);
glEnd();
glPopMatrix();
}
}
// Center line overlays based on DSB enveloppe
for(int i = 0; i < m_channelMarkerStates.size(); ++i) {
ChannelMarkerState* dv = m_channelMarkerStates[i];
if(dv->m_channelMarker->getVisible()) {
glDisable(GL_BLEND);
glColor3f(0.8f, 0.8f, 0.6f);
glPushMatrix();
glTranslatef(dv->m_glRectDsb.x(), dv->m_glRectDsb.y(), 0);
glScalef(dv->m_glRectDsb.width(), dv->m_glRectDsb.height(), 1);
glBegin(GL_LINE_LOOP);
glVertex2f(getCenterFreqLineRelPos(dv->m_channelMarker), 0);
glVertex2f(getCenterFreqLineRelPos(dv->m_channelMarker), 1);
glVertex2f(0.5, 0);
glVertex2f(0.5, 1);
glEnd();
glPopMatrix();
}
@@ -662,6 +663,8 @@ void GLSpectrum::paintGL()
glPushMatrix();
glTranslatef(m_glWaterfallRect.x(), m_glFrequencyScaleRect.y(), 0);
glScalef(m_glWaterfallRect.width(), m_glFrequencyScaleRect.height(), 1);
// Effective bandwidth overlays
for(int i = 0; i < m_channelMarkerStates.size(); ++i) {
ChannelMarkerState* dv = m_channelMarkerStates[i];
if(dv->m_channelMarker->getVisible()) {
@@ -677,19 +680,29 @@ void GLSpectrum::paintGL()
glVertex2f(1, 0.5);
glVertex2f(0, 0.5);
glEnd();
if (dv->m_channelMarker->getHighlighted()) {
glColor3f(0.8f, 0.8f, 0.6f);
glBegin(GL_LINE_LOOP);
glVertex2f(getCenterFreqLineRelPos(dv->m_channelMarker), 0);
glVertex2f(getCenterFreqLineRelPos(dv->m_channelMarker), 1);
glEnd();
}
glDisable(GL_BLEND);
glPopMatrix();
}
}
// Center frequency mark on highlighted channels based on DSB enveloppe
for(int i = 0; i < m_channelMarkerStates.size(); ++i) {
ChannelMarkerState* dv = m_channelMarkerStates[i];
if(dv->m_channelMarker->getVisible()) {
if (dv->m_channelMarker->getHighlighted()) {
glColor3f(0.8f, 0.8f, 0.6f);
glPushMatrix();
glTranslatef(dv->m_glRectDsb.x(), dv->m_glRectDsb.y(), 0);
glScalef(dv->m_glRectDsb.width(), dv->m_glRectDsb.height(), 1);
glBegin(GL_LINE_LOOP);
glVertex2f(0.5, 0);
glVertex2f(0.5, 1);
glEnd();
glPopMatrix();
}
}
}
glPopMatrix();
}
@@ -1026,23 +1039,31 @@ void GLSpectrum::applyChanges()
for(int i = 0; i < m_channelMarkerStates.size(); ++i) {
ChannelMarkerState* dv = m_channelMarkerStates[i];
qreal xc, pw, nw;
qreal xc, pw, nw, dsbw;
ChannelMarker::sidebands_t sidebands = dv->m_channelMarker->getSidebands();
xc = m_centerFrequency + dv->m_channelMarker->getCenterFrequency(); // marker center frequency
dsbw = dv->m_channelMarker->getBandwidth();
if (sidebands == ChannelMarker::usb) {
nw = 0; // negative bandwidth
nw = dv->m_channelMarker->getLowCutoff(); // negative bandwidth
pw = dv->m_channelMarker->getBandwidth() / 2; // positive bandwidth
} else if (sidebands == ChannelMarker::lsb) {
pw = 0;
pw = dv->m_channelMarker->getLowCutoff();
nw = dv->m_channelMarker->getBandwidth() / 2;
} else {
pw = dv->m_channelMarker->getBandwidth() / 2;
pw = dsbw / 2;
nw = -pw;
}
//std::cerr << xc << "; " << nw << "; " << pw << std::endl;
// draw the DSB rectangle
dv->m_glRectDsb.setRect(
m_frequencyScale.getPosFromValue(xc - (dsbw/2)) / (float)(width() - leftMargin - rightMargin),
0,
dsbw / (float)m_sampleRate,
1);
// draw the effective BW rectangle
dv->m_glRect.setRect(
m_frequencyScale.getPosFromValue(xc + nw) / (float)(width() - leftMargin - rightMargin),
0,
@@ -1366,16 +1387,3 @@ void GLSpectrum::channelMarkerDestroyed(QObject* object)
{
removeChannelMarker((ChannelMarker*)object);
}
float GLSpectrum::getCenterFreqLineRelPos(ChannelMarker *channelMarker)
{
ChannelMarker::sidebands_t sidebands = channelMarker->getSidebands();
if (sidebands == ChannelMarker::usb) {
return 0.0;
} else if (sidebands == ChannelMarker::lsb) {
return 1.0;
} else {
return 0.5;
}
}