private void calculateBoundaryBox() {
double x = 0, y = 0;
double xl = 0, xr = 0;
double yu = 0, yl = 0;
for (TrackSection section : sections) {
x = section.getInitialAnchor().getPosX();
y = section.getInitialAnchor().getPosY();
xl = Math.min(x, xl);
yu = Math.min(y, yu);
xr = Math.max(x, xr);
yl = Math.max(y, yl);
}
initialAnchor = new Anchor(0, -xl, -yu);
boundarywidth = xr - xl;
boudaryHeight = yl - yu;
}
