The following MovieMaker code works in 0194.  I just installed 2.0a4 and tried MovieMaker but it says, "Cannot find anything named "MovieMaker.H263"  Is this a feature in development or has it been replaced with something else?  The MovieMaker reference for 2.0+ indicates that it should recognize 'MovieMaker.H263'.  I did not see anything in the release notes about MovieMaker. 

1. import processing.video.*;
2. MovieMaker mm;
3. void setup() {
4.       size(720, 480, OPENGL);
5.       mm = new MovieMaker(this, width, height, "drawing.mov",34, MovieMaker.H263, MovieMaker.LOSSLESS);
6. }
7. void draw() {
8.       translate(width/2,height/2,0);
9.       fill(255,150,10);
10.       sphere(50);
11.      
12.       mm.addFrame();
13. };

I'm wondering if processing can be used to develop facebook FBML content.  I know nearly nothing about FBML but its Facebook's version of a custom web page.  I don't know what it's capabilities are, but, I am curious if anyone in the processing community is aware of using processing in connection with content displayed on a facebook page.  Could/is processing being used for facebook application development?  Are there libraries in development for working with facebook?

I thought I've correctly declared fields and methods accessing the ani library but I get the following error:

java.security.AccessControlException: access denied (java.lang.reflect.ReflectPermission suppressAccessChecks)
### Ani Debug ->  Error @ AniCore. AccessControlException.
you are probably running in applet mode.
make sure fields and methods which you want to
access in your processing code are public.

java.security.AccessControlException: access denied (java.lang.reflect.ReflectPermission suppressAccessChecks)
### Ani Debug ->  Error @ AniCore. AccessControlException.
you are probably running in applet mode.
make sure fields and methods which you want to
access in your processing code are public.

This error occurs each time I call the following functions that have calls to the ani library:

1. public void thIn (){
2.   Ani.to(this, .5,"x",(width/2),Ani.BOUNCE_IN);
3.   Ani.to(this, .5,"y", 70,Ani.BOUNCE_IN);
4.   FadeTextAni.to(this,2.0,"TextAlpha",255,FadeTextAni.LINEAR);
5.   TextSizeAni.to(this,.5,"TextSize",TargetTextSize,TextSizeAni.LINEAR);
6. }
7. public void thout (){
8.   Ani.to(this, 1,"x",width/2,Ani.BOUNCE_OUT);
9.   Ani.to(this, 1,"y", height+200,Ani.BOUNCE_OUT);
10.   FadeTextAni.to(this,2.0,"TextAlpha",0,FadeTextAni.LINEAR);
11.   TextSizeAni.to(this,.5,"TextSize",TargetTextSize/3,TextSizeAni.LINEAR);
12. }

The error does not stop the sketch from executing, the above functions work for their intended purpose but I would like to use the debug console and would like to prevent these continuing Ani:AccessControlException.  It looks unprofessional.

The sketch is 8 files.  The error generating code is in the main sketch file, STD_Art:  http://pages.suddenlink.net/tls/std_applet_sm/STD_Art.pde    I think to resolve this issue would be to compare how the fields and methods are declared public in this sketch with how they should be declared correctly.  The running applet and all 8 sketch files are at http://pages.suddenlink.net/tls/std_applet_sm/

I have svg graphics consisting of a simple filled and stroked path with 10 - 30 bezier curve control points created with Inkscape (outlines of dolphins and octopus).  I want to use svg graphics because of their scalability (and control over color, stroke, and transparency).  I haven't learned how to use processing bezier's or to convert my svg's to beziers and it's a lot easy to create artwork as svg's.

I want to be able to rotate these svg's but not around their corner's or svg document center.  Whether I use shapeMode(CENTER); shapeMode(CORNER); or //shapeMode(CORNERS); my svg's don't rotate in place.  They also look kind of funky when rendered in P3D with smooth();

It would be nice to load them into processing as beziers ... is there a library or a processing sketch that outputs the bezier information from an svg into processing bezier() statements that could be cut and pasted into a sketch?

Sorry, codes kinda worthless w/o the svg's but couldn't figure how to add them to this post:

1. /**
2. *  wagon wheel (stroboscope) effect
3. *  see http://en.wikipedia.org/wiki/Wagon-wheel_effect
4. *  THIS IS FOR TESTING ROTATION OF SVG'S; NOT A PROJECT
   
5. */
6. // IMPORTED LIBRARIES
7. // GLOBAL VARIABLES
8. float rotoff;
9. float x,y;
10. // IMAGE, SOUND, FONT, MOVIE OBJECTS
11. PShape s;
12. PShape s2;
13. PShape s3;
14. //PShape TestRect;
15. PShape TestRect;
16. // CLASSES/OBJECTS
17. // SETUP
18. void setup(){
19. size(400,400);
20. //frameRate(12);
21. smooth();
22. //shapeMode(CENTER);
23. shapeMode(CORNER);
24. //shapeMode(CORNERS);
25. s = loadShape("dolphin.svg");
26. s2 = loadShape("outline_simple.svg");
27. s3 = loadShape("dolphin2.svg");
28. //TestRect = rect(200,200,20,60);
29. //s.rotate(180);
30. }
31. // DRAW
32. void draw() {
33.   background(0);
34.   s.enableStyle();
35.   //s.scale(.25,.25);
36.   rotoff = -PI/90;
37.   s.rotate(rotoff);
38.  
39.   x = x-1;
40.   y = sin(radians(x))*x/4 + height/2;  //  cos(2^x) +
41.  
42.   pushMatrix();
43.   //shape(s, width/2+(rotoff*(width)), height/2,s.width/8,s.height/8);
44.   //shapeMode(CORNER);
45.   shape(s, x, y,s.width/8,s.height/8);
46.   popMatrix();
47.  
48.  
49.   if (x <= 0) {
50.     x = width;
51.     //y = y * -1;
52.   }
53.  
54.   pushMatrix();
55.   //translate(x,-50);
56.   fill(#F51616);
57.   shape(s2, width/2+(rotoff*(width)+100), height/2+100,s2.width/8,s2.height/8);
58.   popMatrix();
59.   //translate(x,-50);
60.   shape(s3, width/2+(rotoff*(width)+100), height/2+100,s3.width/8,s3.height/8);
61.   //rotate(radians(1));
62.   //s.rotate(+.1);
63.   //if (random(30) <= 1) {s.rotate(-180);}
64.   //shape(TestRect,width/2,height/2);
65.   //TestRect.rotate(rotoff);
66.   //s.rotate(rotoff);
67.   s2.rotate(+1);
68.   s3.rotate(-rotoff);
69. }
70. void mousePressed() {
71.   s.rotate(rotoff);
72.  
73.   //s.rotate(PI/3.0);
74.   //rotate(radians(1));
75. }

It's really going to put a strain on my noggin if you have to translate x and y as a function of it's current rotation in order to get svg's to rotate in place.

With several projects I wish to display several images that have different width's and height's in the center of the sketch window.  Many of the images are larger than the screen resolution (at times in the sketch parts parts of may be displayed at higher resolutions though other functions.)  Sometimes the widths are wider than the screen resolution; sometimes the heights are; sometimes both are.

I need to center and scale different sized images in the sketch.  Since all we are dealing with is rescaling images according to what the sketch height and width height are, it MUST be possible to construct a forumula that would always display an image in the center of the sketch, scaled to fit inside the screen, when it wider or higher than the sketch window. Like it would scale by whatever the largest dimension is.

I've been picking my brain writing all sorts of different variations of ideas and haven't come up with a formula that scales the images correctly.  E.G.:

<snip>

1.     int srcratio = srcImg.height/srcImg.width;
2.     int screenratio = height/width;
3.     //if (srcImg.height >= height) {srcImg = srcImg.resize( ((width/srcImg.width)*width), ((height/srcImg.height)*height) );}
4.     //image(srcImg,width/2-srcImg.width/2,0,((width/srcImg.width)*width),((height/srcImg.height)*height));
5.     //image(srcImg,100,0,((width/srcImg.width)*srcImg.width), height );
6.     //if (wratio <= hratio) {
7.     image(srcImg,width/2-srcImg.width/2,0,srcImg.height*srcratio, srcImg.width );
8.     //} else {image(srcImg,width/2-srcImg.width/2,0,srcImg.width*hratio, srcImg.height*hratio );}

<snip>

It seems to me that this would be a fairly common project requirement and that someone could share their autoimage center solution.  Before spending another evennining trying to figure this one out, I thought it wouldn't hurt to ask.

I think by the time I come back to this question, I'll have worked out a solution but I'm still interested in how advanced coders would do it.

I can't seem to apply a tint to opaque grayscale images.  Am I doing something wrong here? I have transparent black and white images of left and right wings.  I want to be able to change the wing colors and I thought the simplest way would be to use neutral tone colors and apply tints to them.

<snip>

1.     tint(#E81313,255);
2.    
3.     image(rwing,eyeSize*4,0,sin(flap)*(eyeSize*4) +1,eyeSize*4);
4.     image(lwing,2,0,-sin(flap)*(eyeSize*4) +1,eyeSize*4);
5.     flap += flapStep; /// modifying the flapstep changes wingspeed
6.     noTint();

<snip>

Full project development code located in WeirdThings class at http://pages.suddenlink.net/tls/std_applet_sm/

Is there any obvious reason why I am getting this error (eventually) from my script:

Note:  I have three separate SoundSipher Melodies going on here and I am learning about how to control the start of play of each melody so the melodies start at the same time or could be offset from one another.I don't get the error when line 139 is uncommented and line 169 is commented.  This line marks the beginning and ending of a SoundSipher melody.  I think what is happening here is it's nesting part of a melody when I play the first melody when I put Melody.play(); on line 169 followed by Melody2.play();

I am having a hard time by listening whether the location of [sounsipherscore].play() in connection with other score's has any effect on the timing of when each score starts playing.

Do you have to use constraints to prevent changes to pitch, tempo, and instruments which in certain combinations cannot be handled by java?

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x6d5da37e, pid=5020, tid=4932
#
# JRE version: 6.0_20-b02
# Java VM: Java HotSpot(TM) Client VM (16.3-b01 mixed mode windows-x86 )
# Problematic frame:
# C  [jsound.dll+0xa37e]
#
# An error report file with more information is saved as:
# C:\Program Files (x86)\Processing\processing-1.2.1\hs_err_pid5020.log
#
# If you would like to submit a bug report, please visit:
#   http://java.sun.com/webapps/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#

1. /**
2. * UNTLS (BSD 2011)
3. Music Class for Java Applets and Applications
4. * Based on GeneratingBeats and Unlimited Art SoundCipher examples
5. * by Andrew R. Brown.
6. * A drum pattern generator that creates a 4 beat pattern,
7. * plays it then generates another 4 beat pattern, and so on.
8. * SoundCipher's callback facility is used to provide the loop
9. * regeneration notification at the end of the pattern.
10. * Simple drawing in time with the music is triggered by callbacks.
11. */
12. import arb.soundcipher.*;
13. import static arb.soundcipher.constants.ProgramChanges.*;
14. //MusicMaker myMusicMaker;
15. //
16. //void setup(){
17. //  size(200,200);
18. // 
19. //  myMusicMaker = new MusicMaker();
20. // 
21. //}
22. //
23. //void draw(){
24. // 
25. //}
26. //String[] SubInstruments = {"BIRD","BOTTLE_BLOW","CELESTA","CRYSTAL","ELECTRIC_GRAND","FRETS",
27. //                        "JAZZ_GUITAR","KALIMBA","KOTO","MARIMBA","MUSIC_BOX","ORCHESTRA_HIT",
28. //                       "PICKED_BASS","SEA","SHAMISEN","STAR_THEME","STEEL_GUITAR","STEELDRUMS", 
29. //                        "TAIKO","TOMS","VIBRAPHONE","WOODBLOCKS","THUMB_PIANO"};
30. //float[] SubInstruments = {123,76,8,98,2,120,26,108,107,12,10,55,
31. //                       34,122,106,103,25,114, 
32. //                        116,119,11,115,108};
33. float[] SubInstruments = {BIRD,BOTTLE_BLOW,CELESTA,CRYSTAL,ELECTRIC_GRAND,FRETS,
34.                         JAZZ_GUITAR,KALIMBA,KOTO,MARIMBA,MUSIC_BOX,ORCHESTRA_HIT,
35.                        PICKED_BASS,SEA,SHAMISEN,STAR_THEME,STEEL_GUITAR,STEELDRUMS, 
36.                         TAIKO,TOMS,VIBRAPHONE,WOODBLOCKS};                       
37. //public class MusicMaker {
38.   //SCScore score = new SCScore();
39.   SCScore myScore = new SCScore();
40.   SCScore Melody = new SCScore();
41.   SCScore Melody2 = new SCScore();
42.   float[] r = new float[4];
43.  
44.   //public int uTempo;
45.   int Instrument;
46.   int LastInstrument;
47.   int uTempo;
48.   int NotePitch;
49.  
50.   int SwapTime;
51.   int lastSwap;
52.  
53.   float[] pitchSet = {57, 60, 60, 60, 62, 64, 67, 67, 69, 72, 72, 72, 74, 76, 79};
54.   //float[] pitchSet = {57, 57, 57, 60, 62, 64, 67, 67, 69, 62, 72, 64, 74, 76, 79};
55.   //float[] pitchSet = {24, 24, 35, 32, 32, 32, 34, 31, 31, 30, 26, 26, 28, 28, 29};
56.   float setSize = pitchSet.length;
57.   float keyRoot = 0;
58.   float density = 0.8;
59. void setup(){ 
60.     size(400,278);
61. //  public MusicMaker() { 
62.     //noLoop();
63.     uTempo = 62;
64.     //score.tempo(uTempo);
65.     myScore.tempo(uTempo);
66.     //score.addCallbackListener(this);
67.     myScore.addCallbackListener(this);
68.     makeMusic();
69.     SwapTime = 32 * 1000;
70.     lastSwap = millis();
71.     Instrument = int(random(130));
72.     LastInstrument = int(random(130));
73.     shapeMode(CENTER);
74.    
75.  
76.   }
77.  
78.   synchronized void makeMusic() {   
79.     myScore.empty();
80.     for (float i=0; i<16; i++) {
81.       if (i%8 == 0 || i%16 == 14) {
82.         myScore.addNote(i/4, 9, 0, 36, 100, 0.25, 0.8, 64);  // original instrument 36
83.         myScore.addCallback(i/4, 1);
84.       } else if (random(10) < 1) myScore.addNote(i/4, 9, 0, 36, 70, 0.25, 0.8, 64);
85.       if (i%8 == 4) {
86.         myScore.addNote(i/4, 9, 0, 38, 100, 0.25, 0.8, 64);
87.         myScore.addCallback(i/4, 2);
88.       } else if (random(10) < 2) myScore.addNote(i/4, 9, 0, 38, 60, 0.25, 0.8, 64);
89.       if(random(10) < 8) {
90.         myScore.addNote(i/4, 9, 0, 42, random(40) + 70, 0.25, 0.8, 64);
91.         myScore.addNote(i/8, 9, 0, LastInstrument, pitchSet[(int)random(setSize)]+keyRoot, 0.25, 0.8, 64);
92.       } else {
93.         myScore.addNote(i/4, 9, 0, Instrument, random(40) + 70, 0.25, 0.8, 64); //original instrument = 38
94.         myScore.addNote(i/4, 9, 0, Instrument, 80, 0.25, 0.8, 64); //original instrument = 38
95.       }
96.     }
97.     myScore.addCallback(4, 0);
98.     myScore.play();
99.    
100.    
101.    
102.     Melody.empty();
103. //    if (random(10) >= 8) {Melody.instrument((SubInstruments[int(random(SubInstruments.length-1))]));} else {
104. //      int a = int(random(3));
105. //      if (a == 0) {Melody.instrument(Melody.ACOUSTIC_GRAND);}
106. //      if (a == 1) {Melody.instrument(Melody.VIBRAPHONE);}
107. //      if (a == 2) {Melody.instrument(Melody.CELESTA);}
108. //      if (a == 3) {Melody.instrument(Melody.MARIMBA);}
109. //    }
110.     int Itemp = int(random(126));
111.     for (float i =0;i<32;i++) {
112.      
113.       NotePitch = int(random(setSize));
114.      
115.       if (random(1) < density) {
116.       //sc.playNote(pitchSet[(int)random(setSize)]+keyRoot, random(90)+30, random(20)/10 + 0.2);
117.       Melody.addNote(i/4,pitchSet[NotePitch]+keyRoot, random(90)+30, random(20)/10 + 0.2);
118.       fill(color(random(256), random (256), random(256)));
119.       rect(random(width), random(height), random(40), random(40));
120.       }
121.       if (i%32 == 0) {
122.       keyRoot = (random(4)-2)*2;
123.       density = random(7) / 10 + 0.3;
124.       Melody.addNote(i/2,46+keyRoot, random(40) + 70, 0.8);
125.       }
126.       if (i%16 == 0) {
127.       //Melody.instrument(Instrument);
128.       //float[] pitches = {pitchSet[(int)random(setSize)]+keyRoot-12, pitchSet[(int)random(setSize)]+keyRoot-12};
129.       //Melody.addNote(i/4,pitchSet[(int)random(setSize)]+keyRoot-12, random(50)+30, 4.0);
130.       //Melody.addNote(i/4, 9, Instrument, pitchSet[(int)random(setSize)]+keyRoot-12, 90,2, .75, 64);
131.       Melody.addNote(i/2,9,76,pitchSet[(int)random(setSize)]+keyRoot-12,120,1,2.8,65);
132.       //Melody.instrument(Melody.SLAP_BASS  );
133.      
134.       rect(random(width), random(height), random(40), random(40));
135.      }
136.     }
137.     //Melody.instrument(49);
138.     //Melody.instrument(Instrument);
139.     //Melody.play();
140.    
141.     Melody2.empty();
142.     //Melody2.instrument((SubInstruments[int(random(SubInstruments.length-1))]));
143.     for (float i =0;i<32;i++) {
144.       if (random(1) < density) {
145.       //sc.playNote(pitchSet[(int)random(setSize)]+keyRoot, random(90)+30, random(20)/10 + 0.2);
146.       Melody2.addNote(i/4,pitchSet[NotePitch]+keyRoot, random(90)+10, random(20)/10 + 0.2);
147.       fill(color(random(256), random (256), random(256)));
148.       ellipse(random(width), random(height), random(40), random(40));
149.       }
150.       if (i%32 == 0) {
151.       keyRoot = (random(4)-2)*2;
152.       density = random(7) / 10 + 0.3;
153.       Melody2.addNote(i/2,46+keyRoot, random(40) + 20, 0.8);
154.       }
155.       if (i%16 == 0) {
156.       //Melody.instrument(Instrument);
157.       //float[] pitches = {pitchSet[(int)random(setSize)]+keyRoot-12, pitchSet[(int)random(setSize)]+keyRoot-12};
158.       //Melody.addNote(i/4,pitchSet[(int)random(setSize)]+keyRoot-12, random(50)+30, 4.0);
159.       //Melody.addNote(i/4, 9, Instrument, pitchSet[(int)random(setSize)]+keyRoot-12, 90,2, .75, 64);
160.       Melody2.addNote(i/2,9,76,pitchSet[NotePitch]+keyRoot-12,35,1,2.8,65);
161.       //Melody2.addNote(i/2,9,76,Melody2.BLUES,35,1,2.8,65);
162.       //Melody.instrument(Melody.SLAP_BASS  );
163.      
164.       ellipse(random(width), random(height), random(40), random(40));;
165.      }
166.     }
167.     //Melody.instrument(49);
168.     //Melody2.BLUES;
169.     Melody.play();
170.     Melody2.play();
171.    
172.   }
173.  
174.   public void handleCallbacks(int callbackID) {
175.     switch (callbackID) {
176.       case 0:
177.         //score.stop();
178.         myScore.stop();
179.         makeMusic();
180.         break;
181.       case 1:
182.         float w = random(20);
183.         r = new float[] {50-w, 50-w, w*2, w*2};
184.         redraw();
185.         break;
186.       case 2:
187.         r = new float[] {20, 20, 60, 60};
188.         redraw();
189.         break;
190.     }
191.   }
192.    
193.   void draw() {
194.     //background(120);
195.    
196.     rect(r[0], r[1], r[2], r[3]);
197.     if (millis()-lastSwap >= SwapTime) {
198.       ChangeUp();
199.       lastSwap = millis();
200.     }
201.   }
202.  
203.   void stop() {
204.     //score.stop();
205.     myScore.stop();
206.     Melody.stop();
207.     Melody2.stop();
208.   }
209. public void ChangeUp(){
210.    //score.stop(); //?
211.    myScore.stop();
212.    Melody2.stop();
213.    //Melody.stop();
214.    LastInstrument = Instrument;
215.    Instrument = int(random(126));
216.    println("Instrument: " + str(Instrument) + " " );  // good instruments: 65, 35,29,86,30,47,55, 69,58,54,83,92,81,62,75,123
217.    //score.tempo(uTempo);
218.    myScore.tempo(uTempo);
219.    Melody.tempo(uTempo);
220.    makeMusic();
221.   
222.    if (random(10) >= 8) {Melody.instrument((SubInstruments[int(random(SubInstruments.length-1))]));} else {
223.       int a = int(random(4));
224.       if (a == 0) {Melody.instrument(Melody.ACOUSTIC_GRAND);}
225.       if (a == 1) {Melody.instrument(Melody.VIBRAPHONE);}
226.       if (a == 2) {Melody.instrument(Melody.CELESTA);}
227.       if (a == 3) {Melody.instrument(Melody.MARIMBA);}
228.    }
229.   
230.    Melody2.instrument((SubInstruments[int(random(SubInstruments.length-1))]));
231.   
232.    if (random(10) >= 5) {float[] pitchSet = {57, 57, 57, 60, 62, 64, 67, 67, 69, 62, 72, 64, 74, 76, 79};} else
233.     {float[] pitchSet = {57, 60, 60, 60, 62, 64, 67, 67, 69, 72, 72, 72, 74, 76, 79};
234.   }
235. } 
236. void mousePressed(){
237.   ChangeUp();
238.   uTempo = mouseX*2;
239.   println(str(mouseX));
240. }
241. //void mouseDragged() {
242. //  //sc.sendMidi(sc.PITCH_BEND, 0, 0, 100 - mouseY + 14);
243. //  //myScore.sendMidi(myScore.CONTROL_CHANGE, 0, 7, mouseX);
244. //  Melody.sendMidi(176, 0, 7, mouseX);
245. //
246. //}
247. //void mousePressed(){
248. //  //MusicMaker.ChangeUp();
249. //  uTempo = mouseX*2;
250. //}
251. //public class handleCallbacks implements ActionListener {
252. //   
253. //  handleCallbacks (int callbackID) {
254. //  switch (callbackID) {
255. //      case 0:
256. //        //score.stop();
257. //        myScore.stop();
258. //        makeMusic();
259. //        break;
260. //      case 1:
261. //        float w = random(20);
262. //        r = new float[] {50-w, 50-w, w*2, w*2};
263. //        redraw();
264. //        break;
265. //      case 2:
266. //        r = new float[] {20, 20, 60, 60};
267. //        redraw();
268. //        break;
269. //    }
270. //  }
271. //}

I'd like to incorporate local police scanner radio into a news aggregator (designed to be run as an application).  Local scanners are available online for a variety of players (flash, java, real audio, winamp, windows media, etc.) at http://www.radioreference.com/apps/audio/?feedId=7047

Is ESS the only Processing library for playing streams?  The Ess example at http://www.tree-axis.com/Ess/_examples/mp3Stream/ requires an mp3 stream.  I've never gotten it to work and the example has never played sound for me.  If there's a simple way to do this with ESS by cutting and pasting the proper address for the stream from http://www.radioreference.com/apps/audio/?feedId=7047 please do so and post what that mp3 radio urls or any modifications to the above ESS example for working with a different stream.

A java player is available so I am reasonable certain there's a java library or two for playing streams.  What are the best ones for working with from within processing?  For working with the formats available at http://www.radioreference.com/apps/audio/?feedId=7047?

All I need are stream stop and play features; no pause or fast forward features.  Ideally, I'd like to merge the stream with ambient background generative sound created on the fly with soundsipher sota similar to this example:  http://youarelistening.to/ which merges LAPD scanner radio with ambient music.

_________________________________
RELATED POST:

http://forum.processing.org/topic/importing-audio-streams

Sorry about this post title .. I'm LOOKING for a generic two person fighting game script I can use to MAKE a Sheen/Norris fighting game.  I think it would go over well.  I've seen lots of 'Street Fighter' knock off's ... there's gotta be something like that for processing but though I look and look, I haven't seen anything here on or openprocessing.

I think many people would be interested in exploring a Sheen / Norris fighting simulation even if it were just very simple.

My apologies if you came here looking for a complete simulation.  Try collaborating.  How about any ragdoll physics engines for processing?

I'm having trouble creating a class out of a Soundsipher example code that uses callbacks.  When I try to setup callbacks the usual way, myScore.addCallbackListener(this); it says I can't create a callback.  I also have a question about assigning instruments using instrument names.  This question relates to the Soundsipher library, but, may be generally relevant to creating and using classes in general.

I've commented out the lines that would turn the script into a class so that the following script executes.  The string list is not being used; that's my second question.

It's line 62 that causes the error, and I suspect lines 77, 81, and 91 would too if it executed that far as these lines also add a callbacklistener.

I've done a little exploring and found there's things like 'ActionListeners' and something about needing to create callback classes.

Soundsipher requires callbacks in order to use the score mode.  (Lines 160-177.)  The callbacklistenerclass I created when I had things uncommented to run as a class, lines 218 to 238, wasn't available from inside the MusicMaker class.

1. /**
2. * UNTLS (BSD 2011)
3. Music Class for Java Applets and Applications
4. * Based on GeneratingBeats and Unlimited Art SoundCipher examples
5. * by Andrew R. Brown.
6. * A drum pattern generator that creates a 4 beat pattern,
7. * plays it then generates another 4 beat pattern, and so on.
8. * SoundCipher's callback facility is used to provide the loop
9. * regeneration notification at the end of the pattern.
10. * Simple drawing in time with the music is triggered by callbacks.
11. */
12. import arb.soundcipher.*;
13. //MusicMaker myMusicMaker;
14. //
15. //void setup(){
16. //  size(200,200);
17. // 
18. //  myMusicMaker = new MusicMaker();
19. // 
20. //}
21. //
22. //void draw(){
23. // 
24. //}
25. String[] SubInstruments = {"BIRD","BOTTLE_BLOW","CELESTA","CRYSTAL","ELECTRIC_GRAND","FRETS",
26.                         "JAZZ_GUITAR","KALIMBA","KOTO","MARIMBA","MUSIC_BOX","ORCHESTRA_HIT",
27.                        "PICKED_BASS","SEA","SHAMISEN","STAR_THEME","STEEL_GUITAR","STEELDRUMS", 
28.                         "TAIKO","TOMS","VIBRAPHONE","WOODBLOCKS","THUMB_PIANO"};
29. //Double[] SubInstruments = {BIRD,BOTTLE_BLOW,CELESTA,CRYSTAL,ELECTRIC_GRAND,FRETS,
30. //                        JAZZ_GUITAR,KALIMBA,KOTO,MARIMBA,MUSIC_BOX,ORCHESTRA_HIT,
31. //                       PICKED_BASS,SEA,SHAMISEN,STAR_THEME,STEEL_GUITAR,STEELDRUMS, 
32. //                        TAIKO,TOMS,VIBRAPHONE,WOODBLOCKS};                       
33. //public class MusicMaker {
34.   //SCScore score = new SCScore();
35.   SCScore myScore = new SCScore();
36.   SCScore Melody = new SCScore();
37.   SCScore Melody2 = new SCScore();
38.   float[] r = new float[4];
39.  
40.   //public int uTempo;
41.   int Instrument;
42.   int LastInstrument;
43.   int uTempo;
44.   int NotePitch;
45.  
46.   int SwapTime;
47.   int lastSwap;
48.  
49.   float[] pitchSet = {57, 60, 60, 60, 62, 64, 67, 67, 69, 72, 72, 72, 74, 76, 79};
50.   //float[] pitchSet = {57, 57, 57, 60, 62, 64, 67, 67, 69, 62, 72, 64, 74, 76, 79};
51.   //float[] pitchSet = {24, 24, 35, 32, 32, 32, 34, 31, 31, 30, 26, 26, 28, 28, 29};
52.   float setSize = pitchSet.length;
53.   float keyRoot = 0;
54.   float density = 0.8;
55. void setup(){ 
56. //  public MusicMaker() { 
57.     //noLoop();
58.     uTempo = 112;
59.     //score.tempo(uTempo);
60.     myScore.tempo(uTempo);
61.     //score.addCallbackListener(this);
62.     myScore.addCallbackListener(this);
63.     makeMusic();
64.     SwapTime = 32 * 1000;
65.     lastSwap = millis();
66.     Instrument = int(random(130));
67.     LastInstrument = int(random(130));
68.    
69.  
70.   }
71.  
72.   synchronized void makeMusic() {   
73.     myScore.empty();
74.     for (float i=0; i<16; i++) {
75.       if (i%8 == 0 || i == 14) {
76.         myScore.addNote(i/4, 9, 0, 36, 100, 0.25, 0.8, 64);  // original instrument 36
77.         myScore.addCallback(i/4, 1);
78.       } else if (random(10) < 1) myScore.addNote(i/4, 9, 0, 36, 70, 0.25, 0.8, 64);
79.       if (i%8 == 4) {
80.         myScore.addNote(i/4, 9, 0, 38, 100, 0.25, 0.8, 64);
81.         myScore.addCallback(i/4, 2);
82.       } else if (random(10) < 2) myScore.addNote(i/4, 9, 0, 38, 60, 0.25, 0.8, 64);
83.       if(random(10) < 8) {
84.         myScore.addNote(i/4, 9, 0, 42, random(40) + 70, 0.25, 0.8, 64);
85.         myScore.addNote(i/8, 9, 0, LastInstrument, pitchSet[(int)random(setSize)]+keyRoot, 0.25, 0.8, 64);
86.       } else {
87.         myScore.addNote(i/4, 9, 0, Instrument, random(40) + 70, 0.25, 0.8, 64); //original instrument = 38
88.         myScore.addNote(i/4, 9, 0, Instrument, 80, 0.25, 0.8, 64); //original instrument = 38
89.       }
90.     }
91.     myScore.addCallback(4, 0);
92.     myScore.play();
93.    
94.    
95.    
96.     Melody.empty();
97.     Melody.instrument(Melody.VIBRAPHONE);
98.     int Itemp = int(random(126));
99.     for (float i =0;i<32;i++) {
100.      
101.       NotePitch = int(random(setSize));
102.      
103.       if (random(1) < density) {
104.       //sc.playNote(pitchSet[(int)random(setSize)]+keyRoot, random(90)+30, random(20)/10 + 0.2);
105.       Melody.addNote(i/4,pitchSet[NotePitch]+keyRoot, random(90)+30, random(20)/10 + 0.2);
106.       fill(color(random(256), random (256), random(256)));
107.       rect(random(100), random(100), random(40), random(40));
108.       }
109.       if (i2 == 0) {
110.       keyRoot = (random(4)-2)*2;
111.       density = random(7) / 10 + 0.3;
112.       Melody.addNote(i/2,46+keyRoot, random(40) + 70, 0.8);
113.       }
114.       if (i == 0) {
115.       //Melody.instrument(Instrument);
116.       //float[] pitches = {pitchSet[(int)random(setSize)]+keyRoot-12, pitchSet[(int)random(setSize)]+keyRoot-12};
117.       //Melody.addNote(i/4,pitchSet[(int)random(setSize)]+keyRoot-12, random(50)+30, 4.0);
118.       //Melody.addNote(i/4, 9, Instrument, pitchSet[(int)random(setSize)]+keyRoot-12, 90,2, .75, 64);
119.       Melody.addNote(i/2,9,76,pitchSet[(int)random(setSize)]+keyRoot-12,120,1,2.8,65);
120.       //Melody.instrument(Melody.SLAP_BASS  );
121.      
122.       rect(random(100), random(100), random(40), random(40));
123.      }
124.     }
125.     //Melody.instrument(49);
126.     //Melody.instrument(Instrument);
127.     Melody.play();
128.    
129.     Melody2.empty();
130.     Melody2.instrument(Melody2.STEELDRUMS );
131.     for (float i =0;i<32;i++) {
132.       if (random(1) < density) {
133.       //sc.playNote(pitchSet[(int)random(setSize)]+keyRoot, random(90)+30, random(20)/10 + 0.2);
134.       Melody2.addNote(i/4,pitchSet[NotePitch]+keyRoot, random(90)+10, random(20)/10 + 0.2);
135.       fill(color(random(256), random (256), random(256)));
136.       rect(random(100), random(100), random(40), random(40));
137.       }
138.       if (i2 == 0) {
139.       keyRoot = (random(4)-2)*2;
140.       density = random(7) / 10 + 0.3;
141.       Melody2.addNote(i/2,46+keyRoot, random(40) + 20, 0.8);
142.       }
143.       if (i == 0) {
144.       //Melody.instrument(Instrument);
145.       //float[] pitches = {pitchSet[(int)random(setSize)]+keyRoot-12, pitchSet[(int)random(setSize)]+keyRoot-12};
146.       //Melody.addNote(i/4,pitchSet[(int)random(setSize)]+keyRoot-12, random(50)+30, 4.0);
147.       //Melody.addNote(i/4, 9, Instrument, pitchSet[(int)random(setSize)]+keyRoot-12, 90,2, .75, 64);
148.       Melody2.addNote(i/2,9,76,pitchSet[NotePitch]+keyRoot-12,35,1,2.8,65);
149.       //Melody.instrument(Melody.SLAP_BASS  );
150.      
151.       rect(random(100), random(100), random(40), random(40));
152.      }
153.     }
154.     //Melody.instrument(49);
155.     //Melody.instrument(Instrument);
156.     Melody2.play();
157.    
158.   }
159.  
160.   public void handleCallbacks(int callbackID) {
161.     switch (callbackID) {
162.       case 0:
163.         //score.stop();
164.         myScore.stop();
165.         makeMusic();
166.         break;
167.       case 1:
168.         float w = random(20);
169.         r = new float[] {50-w, 50-w, w*2, w*2};
170.         redraw();
171.         break;
172.       case 2:
173.         r = new float[] {20, 20, 60, 60};
174.         redraw();
175.         break;
176.     }
177.   }
178.    
179.   void draw() {
180.     //background(120);
181.    
182.     rect(r[0], r[1], r[2], r[3]);
183.     if (millis()-lastSwap >= SwapTime) {
184.       ChangeUp();
185.       lastSwap = millis();
186.     }
187.   }
188.  
189.   void stop() {
190.     //score.stop();
191.     myScore.stop();
192.     Melody.stop();
193.     Melody2.stop();
194.   }
195. public void ChangeUp(){
196.    //score.stop(); //?
197.    myScore.stop();
198.    //Melody.stop();
199.    LastInstrument = Instrument;
200.    Instrument = int(random(126));
201.    println("Instrument: " + str(Instrument));  // good instruments: 65, 35,29,86,30,47,55, 69,58,54,83,92,81,62,75,123
202.    //score.tempo(uTempo);
203.    myScore.tempo(uTempo);
204.    Melody.tempo(uTempo);
205.    makeMusic();
206.   
207.    if (random(10) >= 5) {float[] pitchSet = {57, 57, 57, 60, 62, 64, 67, 67, 69, 62, 72, 64, 74, 76, 79};} else
208.     {float[] pitchSet = {57, 60, 60, 60, 62, 64, 67, 67, 69, 72, 72, 72, 74, 76, 79};}
209. } 
210. void mousePressed(){
211.   ChangeUp();
212.   uTempo = mouseX*2;
213. }
214. //void mousePressed(){
215. //  //MusicMaker.ChangeUp();
216. //  uTempo = mouseX*2;
217. //}
218. //public class handleCallbacks implements ActionListener {
219. //   
220. //  handleCallbacks (int callbackID) {
221. //  switch (callbackID) {
222. //      case 0:
223. //        //score.stop();
224. //        myScore.stop();
225. //        makeMusic();
226. //        break;
227. //      case 1:
228. //        float w = random(20);
229. //        r = new float[] {50-w, 50-w, w*2, w*2};
230. //        redraw();
231. //        break;
232. //      case 2:
233. //        r = new float[] {20, 20, 60, 60};
234. //        redraw();
235. //        break;
236. //    }
237. //  }
238. //}

My second question is, when I do Melody2.instrument(Melody2.STEELDRUMS ); it works to change that melody to use SteelDrums.  What I would like to do is Melody2.instrument(Meldoy2.ListOfGoodInstrumentNames[random(ListOfGoodInstrumentNames.length)).  Also, Melody2.instrument(XX) where xx is an integer works to assign an instrument. ?  There's a list of the assignments to instruments here: 

http://soundcipher.org/doc/constant-values.html


These don't look like integers.  Is there a trick to using instrument names instead of instrument numbers that are stored in a list of instruments to be used?

public static final float

ACOUSTIC_BASS

32.0f

I'm working on code to render the path of the sun and moon where they travel slowly at the top of the screen and move faster as they approach the horizon at 1/2 screen height.  What I've got is working, but, about every three iterations through the calculation of y for the position of x, it generates a NaN error. 

What is a NaN error?  What does the acronym NaN mean?  What effect do they have on memory use?  Is it necessary to trap them?

1. float x;
2. float y;
3. void setup() {
4.   size(600,200);
5.   noLoop();
6.   //frameRate(1);
7.   x = width;
8.   y = height/2;
9. }
10. void draw(){
11.   ellipse(width/2,height/2,width,height);
12.   ellipse(x,y,10,10);
13. //
14.   for (int i = 0; i <= width;i++)
15.   {
16.     x = width - x-i;
17.     y = -((float)(height/2)/(width/2)) * sqrt((float)sq(width/2) - sq(x-((float)width/2)))+height/2;
18.     if (x <= 0) {x *= -1;}// y *= -1;}
19.     //if (y <= 100) {y *= -1;}
20.     ellipse(x,y,14,14);
21.     ellipse(x,height-y,14,14);
22.     println(str(y));
23.   }
24. }

Ultimately, Im going to synchronize the movement with a clock and sunrise and sun set times scraped from a weather info site.  If I am unable to figure out how to use javascript code for calculating reasonably precisely the moon and sun setting and rising times.  Apparently, the phase of the moon can be calculated (instead of scraped) so I figure the sun rise and setting times might be calculatable as well.  Whatever, I'm still interested in knowing more about NaN.

Is it possible to randomize the order of items in an array?  I have an array list of the names of 16 7k images which I load into an array of PImages using loadImage in a loop in setup(). 

E.G.

1. String[] SpriteNames = {"sm8_rockstar.jpg","sm12_blonde.jpg","sm2_min.jpg","sm10_ozzy.jpg","sm3_pol.jpg","sm13_.jpg","sm7_guitar.jpg",
2.                         "sm1.jpg","sm4_clown.jpg","sm5_glamor.jpg","sm6_int.jpg","sm9_stooges.jpg","sm11_glamor2.jpg","sm14_.jpg"
3.                        };
4. PImage[] sprites; 
5. 
   
6. <SNIP>
7. 
   
8. void loadsprites() {
9.   sprites = new PImage[SpriteNames.length];
10.   for (int si = 0; si < SpriteNames.length;si++) {
11.      sprites[si] = loadImage(SpriteNames[si]);
12.   }
13. }

In draw(), I loop the array of PImages called sprites to draw each image. 

What I'd like to do is draw the images in a different order than they are stored in the PImages array.  I want to re-sort randomly the sprites array, e.g. make a copy of the sprites array, randomize the order of elements in the copy, and then instead of looping through the original array in draw, I loop through the copy with the randomized order.

I know how to copy an array.  I just don't know if there's a clever/convenient way to randomize the order of elements.

Or, would it be better not to copy an array of PImages. Instead create a new integer array called spriteorders where each integer is the index of an image in sprites array and then do something like image(sprites[spriteorders[si]],0,0), if that's possible.  Does creating a copy of an array of PImages bloat memory with additional loaded images or does it know the images are already loaded?

Or, instead of copying the arrays, I could do a "knuth shuffle" with something like SpritesRandom.add(sprites.remove(int(random(0,sprites.length)))) ;  ??

Here's the full code: http://pages.suddenlink.net/tls/stevo_applet/ (not current but has all relevant parts).  It throws an intermittent exeception  java.net.MalformedURLException: no protocol: loading.gif on startup sometimes; refresh usually clears it.

I'm modifying someone's script here to show many different images instead of one image of a ball.  The following code was working fine until I added in the three lines 21-23 and commented out the lines below; I may want to use more or different images and want to be able to select random images so I would preferable put the names of the images to load in an array of file names, and then in setup do a for loop on each of the names through loadImage(StringArray[index]) ..

I think lines 21-23 broke my code.  It throws a NullPointerException.  Do I need to set up the size of sprites somewhere before adding to it?

1. PGraphics[] spriteFrames = new PGraphics[6];
2. //PImage sprite;
3. //PImage sprite2;
4. //PImage sprite3;
5. //PImage sprite4;
6. //PImage sprite5;
7. //PImage sprite6;
8. //PImage sprite7;
9. String[] SpriteNames = {"sm8_rockstar.jpg","sm12_blonde.jpg","sm2_min.jpg","sm10_ozzy.jpg","sm3_pol.jpg","sm13_.jpg","sm7_guitar.jpg"};
10. PImage[] sprites;  
11. float x, y, xs, ys;
12. float xang = 0.0;
13. float yang = 0.0;
14. int surf = 0;
15. void setup() {
16.   size(640, 360);
17.   noSmooth();
18.   background(0);
19.   frameRate(30);
20.  
21.   for (int si = 0; si < SpriteNames.length;si++) {
22.      sprites[si] = loadImage(SpriteNames[si]);
23.   }
24.    
25. //  sprite=loadImage("sm8_rockstar.jpg");
26. //  sprite2=loadImage("sm12_blonde.jpg");
27. //    sprite3=loadImage("sm2_min.jpg");
28. //      sprite4=loadImage("sm10_ozzy.jpg");
29. //        sprite5=loadImage("sm3_pol.jpg");
30. //          sprite6=loadImage("sm13_.jpg");
31. //            sprite7=loadImage("sm7_guitar.jpg");
32.             
33.   // Create blank surfaces to draw on
34.   for (int i = 0; i < spriteFrames.length; i++)  {
35.     spriteFrames[i] = createGraphics(width, height, JAVA2D);
36.   }  
37. }
38. void draw()
39. {
40.   background(0);
41.  
42.   // Get X, Y positions
43.   x = (width/2)*sin((radians(xang))*0.95);
44.   //xs = x - sprite.width;
45.   y = (height/2)*cos((radians(yang))*0.97);
46.   //ys = y - sprite.height;
47.   // Inc the angle of the sine
48.   xang += 1.17;
49.   yang += 1.39;
50.   // Blit our 'bob' on the 'active' surface
51.   spriteFrames[surf].beginDraw();
52.  
53.   for (int si = 0;si<=sprites.length;si++) {
54.     spriteFrames[surf].image(sprites[si], x+(width/2)-32, y+(height/2)-32);
55.     x = x + 10;
56.     y = y +10;
57.  
58.   }
59.  
60. //  spriteFrames[surf].image(sprite, x+(width/2)-32, y+(height/2)-32);
61. //  spriteFrames[surf].image(sprite2, xs+(width/2)-32, ys+(height/2)-32);
62. // 
63. //    spriteFrames[surf].image(sprite3, xs*2+(width/2)-32, ys*2+(height/2)-32);
64. //      spriteFrames[surf].image(sprite4, xs*3+(width/2)-32, ys*3+(height/2)-32);
65. //        spriteFrames[surf].image(sprite5, xs*2-(width/2)-32, ys*2-(height/2)-32);
66. //          spriteFrames[surf].image(sprite6, xs*3-(width/2)-32, ys*3-(height/2)-32);
67. //            spriteFrames[surf].image(sprite7, xs+(width/2)-32, ys-(height/2)-32);
68.  
69.   spriteFrames[surf].endDraw();           
70.   // Blit the active surface to the screen
71.   image(spriteFrames[surf], 0, 0, width, height);
72.   // Inc the active surface number
73.   surf = (surf+1) % spriteFrames.length;
74.   // Display the results
75.   //image(spriteEffect, 0, 0, width, height);
76. }

Try:  Getting Started with Processing.js for installation instructions.  Dated to 2008, these instructions didn't work for me;

Is there a forum for Processing.js?  If it is supposed to be the one at Google Groups I am not happy.  Is it appropriate under this forum or another forum at forum.processing.org?  (There's a choice for Android Processing but not for Processing.js?)

Processing.js is at a different host.  There, I don't see detailed instructions on where to extract the zip files and use them with a local host interface to write and execute the code.  I _thought_ I saw some instructions a few months back (on a processing.org page?), but, I haven't found them yet.  There was something about installing to the proper location and then the processing editor will detect their presence and add additional html5 and .js save as features.

I imagine there are best protocols for installing depending upon whether you are a processing .pde editor or using eclipse.  For processing, I'd like to know as much as possible so that I can share data used by sketches between .js and vanilla exported .pde.  Should I organize projects and sketches under different folder trees for .js and .pde sketches?  Is it better to use processing.js with eclipse for some reason?  Do all I need to do is associate Processing 1.2.1 as the application to use to open .js files?

If there are any installation guides for processing.pde users to install processing.js and use it with their existing projects, PLEASE POST LINKS HERE for errant dummies like myself who don't understand "Processing Implementations."

The following code works (if you have the class water_surface anyway).  However, I want to change the image used by the class interactively or with a timer.  For this, I thought of using a switch case situation.  Unfortunately, if I uncomment the commented part of the code, processing throws a generic processing.app.debug.RunnerException: unexpected token: void
    at processing.app.Sketch.preprocess(Sketch.java:1326)
    at processing.app.Sketch.preprocess(Sketch.java:1205)
    at processing.app.Sketch.build(Sketch.java:1568)
    at processing.app.Sketch.build(Sketch.java:1553)
    at processing.app.Editor$DefaultRunHandler.run(Editor.java:1485)
    at java.lang.Thread.run(Thread.java:619)

error and highlights the line containing : void setup(){

I've looked the switch...case over and compared it to other working code and the only difference I can see is that I am calling a class in the switch statement.  There doesn't seem to be a problem calling the class in draw outside of the switch...case statement.  Is there something in the switch...case statement that I am missing?

1. PImage img1;
   PImage img2;
   PImage img3;
   PImage img4;
   PImage img5;
   PImage bgimg;
   
   public int dwidth;
   public int dheight;
   
   int bgno;
   
   water_surface mywater_surface;
   
   void setup() {
     size(640, 420);
     dwidth = 640;
     dheight = 420;
     img1 = loadImage("gully.jpg");
     img2=loadImage("bunny-disquise.png");
     img3=loadImage("bg__big_a.png");
     bgno = 1;
     bgimg = img2;
     mywater_surface = new water_surface(bgimg);
   }
   
   void draw(){
   
   //  switch(bgno) {
   //    case '1':
   //    bgimg = img1;
   //    mywater_surface = new water_surface(bgimg);
   //    break;
   //    case '2':
   //    bgimg = img2;
   //    mywater_surface = new water_surface(bgimg);
   //    break;
   //    case default:
   //    bgimg = img3;
   //    mywater_surface = new water_surface(bgimg);
   //    break;
   //  }
      
      
     mywater_surface.drawwater();
    
   }
   
   public void mouseDragged(){
     mywater_surface.makeTurbulence(mouseX,mouseY);
   }
    
   public void mousePressed() {
     mywater_surface.makeTurbulence(mouseX,mouseY);
   }
   

I modified someone's clock sketch (sorry, the source doesn't mention authorship and I forgot where I found it) to be a class (one of the recommended ways to learn about classes is to covert sketches to classes).  I've noticed that maybe 30% of the time I launch my app containing this class, that I get a ClassNotFoundException with this or one of several other classes used in the sketch. 

So first, as a general issue, what can cause a sketch to generate class not found exceptions on an intermittent basis -- sometimes the sketch runs fine and other times it acts as if a class were not defined or present in the sketch?

Second, what do the numbers at the end of each line in a debug window mean?  I thought they were line numbers, but, if they are, they are useless in the processing.org editor if a sketch has multiple separate files organized as tabs because the line numbers count all the lines in the sketch sequentially, but, when looking at a sketch in the processing editor, the code in each tab begins with 1. 

Here's what I get when it can't find a class:

processing.app.debug.RunnerException: ClassNotFoundException: Feed_Reader$Clock
    at processing.app.Sketch.placeException(Sketch.java:1543)
    at processing.app.debug.Runner.findException(Runner.java:582)
    at processing.app.debug.Runner.reportException(Runner.java:558)
    at processing.app.debug.Runner.exception(Runner.java:498)
    at processing.app.debug.EventThread.exceptionEvent(EventThread.java:367)
    at processing.app.debug.EventThread.handleEvent(EventThread.java:255)
    at processing.app.debug.EventThread.run(EventThread.java:89)
processing.app.debug.RunnerException: ClassNotFoundException: Feed_Reader$Clock
    at processing.app.Sketch.placeException(Sketch.java:1543)
    at processing.app.debug.Runner.findException(Runner.java:582)
    at processing.app.debug.Runner.reportException(Runner.java:558)
    at processing.app.debug.Runner.exception(Runner.java:498)
    at processing.app.debug.EventThread.exceptionEvent(EventThread.java:367)
    at processing.app.debug.EventThread.handleEvent(EventThread.java:255)
    at processing.app.debug.EventThread.run(EventThread.java:89)
Exception in thread "Animation Thread" java.lang.NoClassDefFoundError: Feed_Reader$Clock
    at Feed_Reader.setup(Feed_Reader.java:111)
    at processing.core.PApplet.handleDraw(Unknown Source)
    at processing.core.PApplet.run(Unknown Source)
    at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.ClassNotFoundException: Feed_Reader$Clock
    at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
    ... 4 more

Here's the block of code in my main sketch's setup() where I call some of the separate classes used in the sketch; note myClock on line 3:

1.   myMoonImage = new MoonImage(width-((width/4))+60,(height/2),#3FB748,255);
2.   myRadarImage = new RadarImage(260,50,#3FB748,255);
3.   myClock = new Clock(width-((width/4))+60,(height/2),105);
4.   myTrafficCams = new TrafficCams(width-((width/2))+45,(height/2)+13,172,128,255,255,4);
5.  
6.   myWeather = new Weather(260,65,#3FB748);
7.   myWaves = new Waves(4,100,#3FB748);
8.   myTides = new Tides(12,134,#3FB748,60);

Sometimes the classnotfoundexception occurs for one of the other classes and I don't think it's caused by a bug in a particular class, but, for example, here's the myClock class being called:

1. public class Clock {
2.   float  d, mm, wCen, hCen, Cir, CirR1, CirR2, CirR3;
3.   String f;
4.   PFont b;
5.  
6.  
7.  Clock(int _wCen, int _hCen, int _Cir){
8.    wCen = _wCen;
9.    hCen = _hCen;
10.    Cir = _Cir;
11.    b = loadFont ("Andalus-48.vlw");
12.    }
13.   
14.  public void display() {
15.  smooth();
16.  stroke(255);
17.  fill(130);
18.  textFont(b,32);  
19.  int d = day();  
20.  int mm = month();
21.  int yy = year()-2000;
22.  String f =  nf(mm,2) + "." + nf(d,2) + "." + str(yy); //nf(yy,4);
23.  text(f,wCen-55, hCen+65);  
24.  
25.  // time
26.  
27. //   wCen = width-((width/4)+50);
28. //   hCen = height/2;
29.    //Cir = 150;
30.    CirR1 = Cir/3;
31.    CirR2 = Cir/2.5;
32.    CirR3 = Cir/4; 
33.  
34.   fill(200);  
35.   float s = map(second(), 0, 60, 0, TWO_PI) - HALF_PI;
36.   float m = map(minute(), 0, 60, 0, TWO_PI) - HALF_PI;
37.   float h = map(hour()% 12, 0, 12,0, TWO_PI) - HALF_PI;
38.   stroke(194); 
39.   ellipse(wCen, hCen, 6, 6);
40.   strokeWeight(1);
41.   line(wCen, hCen, cos(s) * CirR1 + wCen, sin(s) * CirR1 + hCen);
42.   strokeWeight(2);
43.   line(wCen, hCen, cos(m) * CirR2 + wCen, sin(m) * CirR1 + hCen);
44.   strokeWeight(3.5);
45.   line(wCen, hCen, cos(h) * CirR3 + wCen, sin(h) * CirR1 + hCen);
46.  }
47. }

Not knowing any better, I've thought about putting delay(1000) in between calling each class in case it was a problem with loading too many classes too quickly.  In case you're wondering, it's a localized news aggregator with visualizations for wave height, sunset, moonrise ... still very much underdevelopment.

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. }

Assuming x and y are initialized as x = width, y = height/2, the following code should draw a series of circles in an ellipse, or part of an ellipse.  However, I think there is something wrong with how I am expressing the equation in processing language because y always equals 0.  Line 2 is the questionable code formula for an ellipse where you know the height and width (in this case the window dimensions) and the x value.

1.   for (int i = 0; i <= width/2;i++)
2.   {
3.     x = x - i;
4.     y = (-height/width) * sqrt(sq(width) - sq(x));               
5.     ellipse(x,y,14,14);
6.     println(str(y));
7.   }

Simple math here folks.  I know if you read this far you probably know the answer so give it up, plz.

By defaults, tabs apply to the whole window; when you add tabs they appear starting in the top left corner of the screen and each tab is positioned horizontally across the top of the screen.  They are always visible unless you programatically hide them.  Tabs are designed to work with separate control windows.

ControllerGroups are controls that can be opened and close, and draw in the main drawing window.  They have a bar you can click on the make the controls set to the controller group be visible or hidden depending upon whether the controllgroup is open or closed.  I think they are designed to be used with controls appearing in the main drawing window.

And, there are also ControlCanvas and ControlGroupCanvases that can apparently be added to either tabs or ControllerGroups, which are different things.  I want to make my controlgroup take up half the width it presently does, and, in order to do that, I need to add the new controls I need to include onto some new control space that draws over and hides the controls presently appearing in the controlgroup. 

1. /**
2.  * Sketch for testing controlP5 Buttons.
3.  *
4.  * UNBSD 2010 (BSD Licensed, fair use)
5.  */
6.  
7.    import controlP5.*;
8.    ControlP5 controlP5;
9.    ColorPicker cp;
10.    Toggle scroll;   // Toggle is depreciated; alternate?
11.    Toggle showdescback;// Toggle is depreciated; alternate?
12.    Toggle showtitleback;// Toggle is depreciated; alternate?
13.  
14.  void setup() {
15.   size(600,200);
16.     // add controlP5 to the sketch.  mandatory.
17.     controlP5 = new ControlP5(this);
18.     // These controls are unassigned to groups and appear all the time
19.     controlP5.addSlider("Speed",1,20,12,width-176,height-15,100,10);
20.     controlP5.addButton("READ",0,width-34,height-24,30,19);
21.     controlP5.addButton("SPEAK",0,width-224,height-24,30,19);
22.     // create a control group; MAYBE IT SHOULD BE A CONTROLGROUPCANVAS ???   
23.     ControlGroup l = controlP5.addGroup("Settings",0,10);
24.     l.setBackgroundColor(color(102, 102, 255,200));
25.     l.setBackgroundHeight(200);
26.     l.setMoveable(true);
27.     l.setWidth(600);
28.     // start with the control group closed.
29.     l.close();
30.     // create a toggle with custom label and add it to the ControlGroup l
31.     scroll = controlP5.addToggle("Scrolling Headlines",true,10,20,10,10);
32.     scroll.captionLabel().style().marginTop = -12;
33.     scroll.captionLabel().style().marginLeft = 25;
34.     scroll.setGroup(l);
35.     // create a toggle with custom label and add it to the ControlGroup l
36.     showdescback = controlP5.addToggle("",true,10,44,10,10);
37.     showdescback.captionLabel().style().marginTop = -24;
38.     showdescback.captionLabel().style().marginLeft = 0;
39.     showdescback.setGroup(l);
40.     // add a basic slider to ControlGroup l
41.     controlP5.addSlider("alpha_desc",1,255,130,40,44,100,10).setGroup(l);
42.     // add a basic bang to ControlGroup l
43.     controlP5.addBang("SetDesc",200,44,10,10).setGroup(l);
44.     // create a toggle with custom label and add it to the ControlGroup l   
45.     showtitleback = controlP5.addToggle("TitleBack",true,10,68,10,10);
46.     showtitleback.captionLabel().style().marginTop = -24;
47.     showtitleback.captionLabel().style().marginLeft = 0;
48.     showtitleback.setGroup(l);
49.     // add a basic bang to ControlGroup l
50.     controlP5.addBang("SetBack",200,68,10,10).setGroup(l);
51.     // add a basic slider to ControlGroup l
52.     controlP5.addSlider("alpha_title",1,255,130,40,68,100,10).setGroup(l);
53.     // create and add a color picker slider to ControlGroup(1);
54.     cp = controlP5.addColorPicker("picker",10,106,255,20);
55.     cp.setGroup(l);
56.  
57.     // TO DO/FIGURE OUT
58.     // Add Multiple ControlGroupCanvases to ControlGroup and Assign Controls
59.     // to specific canvases.
60.  
61.  }
62.  
63.  void draw() {
64.     background(0);
65.   
66.  }
67.  
68.    void controlEvent(ControlEvent theEvent) {
69.     if (theEvent.controller().name()=="READ") {};
70.     if (theEvent.controller().name()=="SPEAK") {}
71.  
72.     if(theEvent.controller().name().equals("SetBack")) {    }
73.     if(theEvent.controller().name().equals("SetDesc")) {    }
74.   }
75.   void Speed(float DELAY) {
76.     //feedRate = int(DELAY*1000);
77.     //println("a slider event. setting background to "+DELAY);
78.   }

ControlP5's ColorPicker has four sliders, three for red, green, and blue, and the fourth is for alpha.  The function getColorValue() returns values in the format:  -1 = 255 r,g,b,a; 1684300900 where r,g,b, & a are 100; 0 where all values are zero.  I just want to get the alpha value in a form I can use in processing.  Alternatively, I could control the alpha with a normal controlP5 slider if there's some way to just show the three color selector bars and not the alpha selector bar.

My second question is that by default -- e.g. controlP5.addToggle("scrolling",true,10,20,10,10).setGroup(l); --  labels appear below checkboxes, as in:

[ ]
scrolling

I'd like to put the label above the checkbox, as in:

scrolling
[ ]

Ideally, I would like to refer to the value 'scrolling' but, want to display the text, "Scroll Title Text" instead of 'scrolling'.

Do I need to hide the checkbox label and draw a text label, or is there a better way to do this by modifying the checkbox control or using extended styles?

I generally like the default courier(ish) font used by the processing gui, but, I've lost a little productivity being unable to visually distinguish between the numeral 1 and lowercase l (they look the same).  Is there a way to change the default font used by the processing gui?

I need a color picker attached to a controlgroup that has a bang toggle in it to control what colors are changed by the colorpicker ... i need to be able to hide and show the control group with bang and colorpicker.  Everything works as intended in the code below, but when I include line 15 in my code to, I get a compile error, The method setGroup(ControllerGroup) in the type ControllerGroup is not applicable for the arguments (int).

1.   controlP5 = new ControlP5(this);
2.   controlP5.addSlider("Speed",1,20,3,width-176,height-15,100,10);
3.   ControlGroup l = controlP5.addGroup("Settings",0,10);
4.   l.setBackgroundColor(color(102, 102, 255,200));
5.   l.setBackgroundHeight(200);
6.   l.setMoveable(true);
7.   l.setWidth(600);
8.   l.close();
9.   controlP5.addToggle("scrolling",true,10,20,10,10).setGroup(l);
10.   controlP5.addToggle("DeskBack",true,10,44,10,10).setGroup(l);
11.   controlP5.addToggle("TitleBack",true,10,68,10,10).setGroup(l);
12.   controlP5.addSlider("BackAlpha",1,255,130,40,44,100,10).setGroup(l);
13.   controlP5.addSlider("TitleBack",1,255,130,40,68,100,10).setGroup(l);
14.   cp = controlP5.addColorPicker("picker",10,106,255,20);
15.   cp.setGroup(1);