/*      PolylineExample
 * 
 *      A simple example of the use of the PolyLineSimplification class
 * 
 *      Author:     Michael Thomas Flanagan
 *      Date:       6 December 2011
*/

import flanagan.interpolation.*;
import flanagan.math.*;
import flanagan.io.*;

public class PolylineExample{
    
    public static void main(String[] arg){
         
        // x-coordinate dat
        double[] linex = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18};
        // y-coordinate data
        double[] liney = {0, 2, 3, 6, 7, 8, 15, -5, 4, 1, -2, -3, -3, -1, 2, 4, 6, 7, 9};
        
        // Combine above data as an array of Point
        Point[] curve = Point.oneDarray(linex, liney);
       
        // Enter thwe required tolerance
        double tolerance = Db.readDouble("Enter the tolerance ",8.0);
        
        // Create an instanceof PolylineSimplification
        PolylineSimplification dp = new PolylineSimplification(curve);
        
        // Perform Douglas-Peucker simplification
        Point[] pline = dp.douglasPeucker(tolerance);
        
        // Plot the original and simplified curves
        dp.plot();
        
    }
}