The following sketch is supposed to load a series of new traffic camera images (they are updated approximately every five minutes) and then display each image for 4 seconds one at a time with a caption.  For some reason, it's displaying the first image without a caption, and then displays the last image with a caption, and doesn't loop through or cycle through the images.  Help would be appreciated.  I think the problem is with lines 37 through 56 of the TrafficCams class.

Main Sketch (just calls the class with some setup variables, xpos,ypos,width,height,color,alpha,displaytime): 

1. TrafficCams myTrafficCams;
2. void setup() {
3.   size(400,400);
4.   smooth();
5.   background(0);
6.  
7.   myTrafficCams = new TrafficCams(50,100,170,125,255,255,4);  //
   
8. }
9. void draw() {
10.   myTrafficCams.DrawTrafficCams();
11. }

TrafficCams Class

1. public class TrafficCams {
2.   int x,y,wx,hy;
3.   color c_back;
4.   int trafficalpha;
5.   int cyclerate;
6.   PImage ImageSource;  // not used
   
7.   PImage[] LoadedCams;
8.   PImage NoImage;
9.   String URL;
10.   String[] cams = new String[4];
11.   String Caption;
12.  
13.   int UpdateInterval;
14.   int LastUpdate;
15.      
16.   public TrafficCams (int xtop, int ytop, int w_x, int h_y, color color_c, int t_alpha, int c_rate) {
17.     x = xtop;
18.     y = ytop;
19.     wx = w_x;
20.     hy = h_y;
21.     c_back = color_c;
22.     cyclerate = c_rate * 1000;
23.     trafficalpha = t_alpha;
24.     NoImage = loadImage("socket_1.png");
25.     LoadedCams = new PImage[cams.length];
26.     cams[0] = "http://www.dot.ca.gov/dist1/d1tmc/hwypix/h101p89.jpg#101 North of Route 299, South";
27.     cams[1] = "http://www.dot.ca.gov/dist1/d1tmc/hwypix/h101p89n.jpg#101 North of Route 299, North";
28.     cams[2] = "http://www.dot.ca.gov/dist1/d1tmc/hwypix/h101p80n.jpg#101 at R Street, Eureka, North";
29.     cams[3] = "http://www.dot.ca.gov/dist1/d1tmc/hwypix/h101p80s.jpg#101 at R Street, Eureka, South";
30.    
31.     GetTrafficCams();
32.     delay(1000);
33.    
34.     UpdateInterval = 5*60*1000;  // update every five minutes
35.   }
36.  
37.   public void DrawTrafficCams() {
38.       fill(c_back,trafficalpha);
39.       for (int i = 0; i < cams.length; i++) {
40.       //try {
41.         image(LoadedCams[i],x,y,wx,hy);
42.         String[] p = splitTokens(cams[i],"#");
43.         Caption = p[1];
44.         text(Caption,x+4,y+hy-8);
45.       //} catch (NullPointerException e) {
46.       //  image(NoImage,x,y);
47.       //}
48.       delay(cyclerate);
49.       println("cyclevalue: " + str(i) + " caption: " + Caption);
50.     }
51.    
52.     if (millis()-LastUpdate >= UpdateInterval) {
53.       myTrafficCams.GetTrafficCams();
54.       println("Updating Traffic Cams . . . ");
55.     }
56.   }
57.  
58.   public void GetTrafficCams() {
59.     for (int i = 0; i < cams.length; i++) {
60.       String[] p = splitTokens(cams[i],"#");
61.       URL = p[0];
62.       println("Loading Traffic Cam: " + URL);
63.       try {
64.         LoadedCams[i] = loadImage(URL,"JPG");
65.       } catch (NullPointerException e) {
66.         LoadedCams[i] = NoImage;
67.       }
68.       delay(2000);
69.       println("LoadedCams size: " + str(LoadedCams.length));
70.     }
71.     LastUpdate = millis();
72.   }
73.  
74. }