double a = (double) rangeGraphics/(double) (b-c);
double a = (double) rangeGraphics/(b-c);
	int convertRealIntoGraphics(int x) 	{		int b = control.getGlobalMinimum();		int c = control.getGlobalMaximum();		double a = (double) rangeGraphics/(double) (b-c);		return (int) (a*(x-c)+tW);	}