[SOLVED] QPainterPath resize graph

Anonymous

Hello, I am drawing a graph with QPainterPath... Below is an image of what I want to achieve and have no idea how...

!http://i.gyazo.com/80606a19aa1ec4530ddeeb3f8184995c.png(i)!

@
double step = 0.01
QPainterPath groupPath;

groupPath.moveTo(10, height() - 10);

while(t <= 5){
    x = (35 * qCos(3.14/4) * t);
    y = ((35 * qSin(3.14/4) * t) - (9.81 * qPow(t, 2)) / 2);
    groupPath.lineTo(x + 10, (height() - y) - 10);
    groupPath.moveTo(x + 10, (height() - y) - 10);

    t += step;
}

groupPath.closeSubpath();

QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing);

painter.drawPath(groupPath);@

SGaist

Hi,

You are using fixed values to determine your points (35 and 9.81) you need to take into account the width and height of your widget.

Hope it helps