Method QCPItemCurve

3rdparty/qcustomplot/qcustomplot.cpp:29294–29308

! Creates a curve item and sets default values. The created item is automatically registered with \a parentPlot. This QCustomPlot instance takes ownership of the item, so do not delete it manually but use QCustomPlot::removeItem() instead. */

  ownership of the item, so do not delete it manually but use QCustomPlot::removeItem() instead.
*/
QCPItemCurve::QCPItemCurve(QCustomPlot *parentPlot) :
  QCPAbstractItem(parentPlot),
  start(createPosition(QLatin1String("start"))),
  startDir(createPosition(QLatin1String("startDir"))),
  endDir(createPosition(QLatin1String("endDir"))),
  end(createPosition(QLatin1String("end")))
{
  start->setCoords(0, 0);
  startDir->setCoords(0.5, 0);
  endDir->setCoords(0, 0.5);
  end->setCoords(1, 1);
  
  setPen(QPen(Qt::black));
  setSelectedPen(QPen(Qt::blue,2));
}

QCPItemCurve::~QCPItemCurve()
{