public int computeStroke(int i, int j, double maxPhero) {
		double phero = graph[j][i][2]; 
		//double pherRatio = phero/maxPhero;
		if (phero < threshold)
			phero = 0;
		int weight = (int)(phero*10);
		//double exaggeratedWeight = Math.pow(pherRatio+.5, 4);
		//int weight;
		//if (exaggeratedWeight < 0.1)
		//	weight = 0;
		//weight = (int) Math.ceil(exaggeratedWeight);
		return weight;
	}