diff -u -r1.3 -r1.4
--- Tiler.java	28 Jul 2010 22:22:34 -0000	1.3
+++ Tiler.java	30 Jul 2010 00:08:00 -0000	1.4
@@ -26,9 +26,27 @@

 public class Tiler {
     public static void main(String[] args) throws IOException {
     	Date startDate = new Date();

-	    String path = "/Users/chriswilen/Documents/Work/Summer_2010/IZipG18M_TB_75x3/tiles/gmapviewer/";
-	    int numXimgs = 7;
-	    int numYimgs = 10;

+    	
+	    String path = "/nfs/farm/g/ee/u15/cdms/CDMS_ImageNavigatorII/wilenc/IZipG47_Side1_Al/";
+	    int numXimgs = 27;
+	    int numYimgs = 37;
+	    
+	    int numThreads = 1;
+	    int thread = 0;
+	    int lowestZoom = 0;
+	    if(args.length>0) {
+	    	try {
+	    		numThreads = Integer.parseInt(args[0]);
+	    		if (Integer.parseInt(args[1])<=numThreads) thread = Integer.parseInt(args[1]);
+	    		else System.out.println("The thread number is larger than the number of threads.");
+	    	} catch (Exception e) {System.out.println("Arguements given were not integers: "+e );}
+	    	System.out.println("Running thread " + args[1]+" of "+args[0]);
+	    }
+	    try {
+	    	lowestZoom = Integer.parseInt(args[2]);
+	    } catch (Exception e) { System.out.println("No zoom limit specified or not an int: will assume z=0."); }
+	    System.out.println("Starting at zoom level " + lowestZoom);
+	    

 	    int tileSize = 256;
 	    
 	    //get info on imgs

@@ -64,13 +82,15 @@

 	    } catch (Exception e) { System.out.println("out file could not be created: " + e); }
 	    
 	    //loop through all zoom levels

-	    for (int zoom=0; zoom<=maxZoom; zoom++) {

+	    for (int zoom=lowestZoom; zoom<=maxZoom; zoom++) {

 	    	double totalW = imgW*numXimgs/Math.pow(2, maxZoom-zoom);
 	    	double totalH = imgH*numYimgs/Math.pow(2, maxZoom-zoom);
 	    	int numXtiles = (int)Math.ceil(totalW/tileSize);
 	    	int numYtiles = (int)Math.ceil(totalH/tileSize);

-	    	//loop through all the tiles for specified zoom level
-	    	for (int row=0; row<numYtiles; row++) {

+	    	//loop through all the tiles for specified zoom level, continuing for only ones in the specified thread
+	    	int lowerThreadLimit = (int)Math.ceil(thread*numYtiles/numThreads);
+	    	int upperThreadLimit = (int)Math.floor((thread+1)*numYtiles/numThreads);
+	    	for (int row=lowerThreadLimit; row<upperThreadLimit; row++) {

 	    		for (int col=0; col<numXtiles; col++) {
         	    	BufferedImage toStore = new BufferedImage(tileSize,tileSize,img.getType());
         	    	Graphics2D g2 = toStore.createGraphics();