setting the axis location

[vidisha]

Hello...i am new to QT ..i want to plot a graph with x axis and y axis to be at origin so plz can one suggest how to do it...

[mrjj]

@vidisha
Hi and welcome
A simple line could be drawn like this.

#include <QApplication>
#include <QLabel>
#include <QPicture>
#include <QPainter>

int main(int argc, char *argv[])
{
   QApplication a(argc, argv);
   QLabel l;
   QPicture pi;
   QPainter p(&pi);

   p.setRenderHint(QPainter::Antialiasing);
   p.setPen(QPen(Qt::black, 12, Qt::DashDotLine, Qt::RoundCap));
   p.drawLine(0, 0, 200, 200);
   p.end(); // Don't forget this line!
   l.setPicture(pi);
   l.show();
   return a.exec();
}