Start scope at actual amplitude value (not at origin)

src/pulsescopewidget.cpp

@@ -58,7 +58,7 @@ PulseScopeWidget::PulseScopeWidget(QWidget *parent) : QGraphicsView(parent),
 
 	setScene(&m_scene);
 
-	m_data.fill(0.0, m_scopeSizeH);
+	m_data.fill(0.0, qRound(m_scopeSizeH));
 	drawCurve(m_data);
 }
 
@@ -78,8 +78,8 @@ void PulseScopeWidget::drawCurve(const QVector<double>& vector)
 {
 	m_data = vector;
 
-	QPainterPath pulsePath(QPoint(0.0, m_scopeSizeV));
-	for(int i = 0; i < m_scopeSizeH; ++i) {
+	QPainterPath pulsePath(QPointF(0.0, m_scopeSizeV - m_data.at(0)));
+	for(int i = 1; i < m_scopeSizeH; ++i) {
 		pulsePath.lineTo(i, m_scopeSizeV - m_data.at(i));
 	}
 	if(m_path == NULL) {