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Auto-align drawing of horizontal grids.

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This commit is contained in:
Uwe Risse 2022-10-13 19:00:53 +02:00
parent 98a67820c8
commit 5a0138fa02
1 changed files with 9 additions and 5 deletions
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14
widgets/plotter.cpp
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@ -402,7 +402,7 @@ void CPlotter::DrawOverlay() //DrawOverlay()
float xx0=float(m_startFreq)/float(m_freqPerDiv);
xx0=xx0-int(xx0);
int x0=xx0*pixperdiv+0.5;
for( int i=1; i<m_hdivs; i++) { //draw vertical grids
for( int i=1; i<m_hdivs; i++) { //draw vertical grids
x = (int)((float)i*pixperdiv ) - x0;
if(x >= 0 and x<=m_w) {
painter.setPen(QPen(Qt::white, 1,Qt::DotLine));
@ -413,14 +413,18 @@ void CPlotter::DrawOverlay() //DrawOverlay()
painter.setPen(QPen(Qt::white, 1,Qt::DotLine));
if(m_bTotalPower) painter.setPen(QPen(Qt::white, 1,Qt::DashLine));
for( int i=1; i<VERT_DIVS; i++) { //draw horizontal grids
for( int i=1; i<VERT_DIVS; i++) { //draw horizontal grids
y = int(i*m_vpixperdiv);
painter.drawLine(15, y, w, y);
if(m_bTotalPower) {
painter.drawLine(15, y, w, y);
} else {
painter.drawLine(0, y, w, y);
}
}
if(m_bTotalPower) {
painter.setPen(QPen(Qt::white));
for( int i=1; i<VERT_DIVS; i++) { //draw horizontal grids
for( int i=1; i<VERT_DIVS; i++) { //draw horizontal grids
y = int(i*m_vpixperdiv);
painter.drawText(0,y+5,QString::number(10*(VERT_DIVS-i) + 20));
}
@ -428,7 +432,7 @@ void CPlotter::DrawOverlay() //DrawOverlay()
if(m_bTotalPower and m_h2>100) {
painter.setPen(QPen(Qt::white, 1,Qt::DotLine));
for( int i=1; i<5*VERT_DIVS; i++) { //draw horizontal 2 dB grids
for( int i=1; i<5*VERT_DIVS; i++) { //draw horizontal 2 dB grids
if(i%5 > 0) {
y = int(0.2*i*m_vpixperdiv);
painter.drawLine(0, y, w, y);