public static double[][] readOtherData(Kattio io){
		String tmp;
		double[][] points=null;
		int N=0;
		
		//read until reached the EOF line
		while(!(tmp=io.readLine()).equals("EOF")){
			String sarr[]=tmp.split(" ");
			
			//try to read the dimension
			if(points==null && sarr[0].equals("DIMENSION")){
				N = Integer.parseInt(sarr[2]);
				points = new double[2][N];
			}
			
			//try to read
			if(points!=null){
				try{
					int a=Integer.parseInt(sarr[0]);
					int b=Integer.parseInt(sarr[1]);
					int c=Integer.parseInt(sarr[2]);
					points[0][a-1]=b;
					points[1][a-1]=c;
				} catch(Exception e){
					//ignore
				}
			}
		}
		return points;
	}