double a = (double) (control.getGlobalMinimum()-b)/(double) rangeGraphics; return (int) (a*y+b);
double a =  (c-b)/ (double) rangeGraphics;  int r = (int) (a*y+b); if (r < c) r = c; if (r > b) r = b; return r;
	int convertGraphicsIntoReal(int x)	{		int b = control.getGlobalMaximum(); 		int y = x-tW;		double a =  			(double) (control.getGlobalMinimum()-b)/(double) rangeGraphics;		return (int) (a*y+b);	}