void Graph::setYAxisScale(double min, double max, bool keepRatio)
{
setAxisScale(yLeft,min,max);
setAxisScale(yRight,min,max);
if (keepRatio)
{
double dx = getXEnd() - getXStart();
double dy = getYEnd() - getYStart();
double ratio = dy / dx;
dy = max - min;
dx = dy / ratio / 2;
double x = (getXEnd() + getXStart()) / 2;
setXAxisScale(x - dx, x + dx, false);
}
}
void Graph::setXAxisScale(double min, double max, bool keepRatio)
{
setAxisScale(xBottom,min,max);
setAxisScale(xTop,min,max);
if (keepRatio)
{
double dx = getXEnd() - getXStart();
double dy = getYEnd() - getYStart();
double ratio = dy / dx;
dx = max - min;
dy = dx * ratio / 2;
double y = (getYEnd() + getYStart()) / 2;
setXAxisScale(y - dy, y + dy, false);
}
}
double AlnusPhyolgeticBranch::getXChild() const
{
return getXEnd();
}
