Normalise a double in a range and scale to a dimension (with optional invert). Useful for chart scaling.

gistfile1.java

public static double normalise(double value, double min, double max, double size, boolean invert)
{
	double range = max - min;
	double result = 0;

	if (range != 0)
	{
		result = (value - min) / range;
	}

	result *= size;

	if (invert)
	{
		result = size - result;
	}

	return result;
}