Generates polygon WKT from an array of latitude/longitude coordinates

polygonwkt.java

     /*
       Any copyright to this file is released to the Public Domain.
        http://creativecommons.org/publicdomain/zero/1.0/
       If you like this, you should donate
        to Peter O. at:
        http://peteroupc.github.io/
      */
     public static String polygonWkt(double[] latlon){
	     if(latlon.length%2 != 0)
		     throw new IllegalArgumentException("latlon length is not even");
	     StringBuilder builder=new StringBuilder();
	     builder.append("POLYGON((");
	     for(int i=0;i<latlon.length;i+=2){
		     if(i>0){
			     builder.append(",");
		     }
		     builder.append(latlon[i]+" "+latlon[i+1]);
	     }
	     builder.append("))");
	     return builder.toString();
     }