/**
* Get y-value from epsilon
*
* @param epsilon epsilon
* @return y-Value
*/
protected double getYFromEpsilon(double epsilon) {
OPTICSPlot opticsplot = optics.getOPTICSPlot(context);
int h = opticsplot.getHeight();
double y = opticsplot.getScale().getScaled(epsilon, h - .5, .5) / (double) h * plotheight;
return (y < 0.) ? 0. : (y > plotheight) ? plotheight : y;
}
/**
* Get epsilon from y-value
*
* @param y y-Value
* @return epsilon
*/
protected double getEpsilonFromY(double y) {
OPTICSPlot opticsplot = optics.getOPTICSPlot(context);
y = (y < 0) ? 0 : (y > plotheight) ? 1. : y / plotheight;
return optics.getOPTICSPlot(context).scaleFromPixel(y * opticsplot.getHeight());
}