int u1, v1, u2, v2;
	for (int j = 0; j < n; j++) {
		double sommeDenominateur = 0;
		double sommeNumerateur = 0;
		for (int k = 0; k < listeMS.size(); k++) {
					double a = p.getContourTPX(listeMS.get(k)[0]);
					double b = p.getContourTPY(listeMS.get(k)[0]);
					double thetaMS = Math.atan2(a,b);
					String segmentMax = new String(""+Integer.toString(listeMS.get(k)[0])+":"+Integer.toString(listeMS.get(k)[1]));
					sommeDenominateur += eMS.get(j).get(segmentMax);
					sommeNumerateur += thetaMS * eMS.get(j).get(segmentMax);
		}
		double thetaI = (double)((double)sommeNumerateur/(double)sommeDenominateur);

		int x = p.getContourX(j);
		int y = p.getContourY(j);
		double a = Math.cos(thetaI);
		double b = Math.sin(thetaI);
		double norme = Math.sqrt(a*a+b*b);
		u1 = getIVisu(x);
	    v1 = getJVisu(y);
	    u2 = getIVisu((int)(x-(NSIZE*a)/norme+0.5));
	    v2 = getJVisu((int)(y+(NSIZE*b)/norme+0.5));
	    ipzc.setColor(Color.blue);
	    ipzc.drawLine(u1, v1, u2, v2);
	}