Java Draw Polyline drawPolyLine(final Graphics g, final Collection points)

Description

draw the points on the Graphics Context.

License

Open Source License

Parameter

Parameter	Description
g	the graphics context
points	a collection of points, anything other than a point in this vector is simply skipped

Declaration

public static void drawPolyLine(final Graphics g, final Collection<?> points) 

Method Source Code

//package com.java2s;

import java.awt.Graphics;
import java.awt.Point;

import java.util.Collection;
import java.util.Iterator;

public class Main {
    /**//from www  .  j av  a 2  s.c o  m
     * draw the points on the Graphics Context. Uses Graphics.drawPolyLine.
     * 
     * @param g the graphics context
     * @param points a collection of points, anything other than a point in this
     *          vector is simply skipped
     **/
    public static void drawPolyLine(final Graphics g, final Collection<?> points) {
        final int[] xpoints = new int[points.size()];
        final int[] ypoints = new int[points.size()];
        int npoints = 0;
        final Iterator<?> iter = points.iterator();
        while (iter.hasNext()) {
            Object obj = iter.next();
            if (obj instanceof Point) {
                final Point p = (Point) obj;
                xpoints[npoints] = p.x;
                ypoints[npoints] = p.y;
                npoints++;
            }
        }

        g.drawPolyline(xpoints, ypoints, npoints);
    }
}

Related

1. drawPolyLine(Graphics g, int[] xs, int[] ys)