I tried to use the thread() command in the switching of the videos but nothing happened. I put a println to see the thread but alway show the main thread, I really don't know if I'm doing this ok..

Thanks a LOT for any help!

import processing.video.*;

File path; 
String[] files;
int numfiles = 0;
int timer = -5000;
int tcontrol= 2000;
int numVideos=9;

VideoM[] v = new VideoM[numVideos];
Movie[] vv;

void setup(){
  size(1920, 1080, P2D);
  frameRate(60);
  files = files(); 
  numfiles = files.length;
  if (numfiles>11) numfiles=11;
  loadvideos();

  for(int i = 0;i < numVideos;i++){
     v[i] = new VideoM();
  }
}


void draw() {

  background(0);
  for(int i = 0; i <numVideos; i++){
     v[i].display();
  }

  if ((millis() - timer) > tcontrol)  {
    thread("newvideo");   
    timer = millis();
    tcontrol= int(random(2,6))*1000; 
}
}


void loadvideos(){

 String video;
 vv = new Movie[numfiles];

 for (int i=0; i<numfiles; i++){
   video= files[int(random(numfiles))];
   vv[i] = new Movie(this, video);
   println ("Loading ", video);
 }
}

class VideoM {

 Movie m;
 String video;

 int x;
 int y;
 int w;
 int h;
 int alpha;
 int alphai;
 int fadeout=0;

 VideoM() {
  genera();
  println(numfiles);
  m = vv[int(random(numfiles)) ];
  m.loop();
  // m.volume(random(0.4,0.6));
  // m.speed(random(0.6,1.0));
  m.jump(random(m.duration()));  
  //m.play(); 
 }

 void genera(){
    x=int(random(50, width/2+width/4)); 
    y=int(random(50, height/2+height/4)); 
    w=int(random(280,820));
    h=int(w/1.88);
    alpha=int(random(100,255)); 
    alphai=0; 
 }

 void display(){
   tint(255, alphai);
   if (fadeout==0) {
     alphai++; if (alphai>alpha) alphai=alpha;
   } else {  alphai--; if (alphai<0) {alphai=0;fadeout=0;this.newvid();}
     }

   if (frameCount > 1) { image(m, x, y, w, h); }
 } 

 void cambiavid(){
   fadeout=1;
 }

void newvid() {  
   m=null;
   int j=int(random(numfiles));
   println("cambio: ", j);
   m = vv[j];
   m.loop();
   genera();
   m.jump(random(m.duration())); 
   println(Thread.currentThread());
 }
}  

void newset(){
  for(int i = 0;i < numVideos;i++){
    println(i);
    v[i].newvid();
  }
}

void newvideo(){
  int i = int(random(numVideos));
  //v[i].nuevovid(this);
  v[i].cambiavid();
}

void movieEvent(Movie m) {
  m.read();
}

boolean bStop,bColor=true;
boolean bSave=false,bVidO=false;
void keyPressed()
{
  int k = keyCode;

  // reset all videos
  if (key == 'n' || key == 'N') {
    newset();
    }

}  


// load files in data

String[] files(){
// The data path of the folder to look in (write your own)
java.io.File folder = new java.io.File(dataPath(""));

// let's set a filter (which returns true if file's extension is .jpg)
java.io.FilenameFilter pngFilter = new java.io.FilenameFilter() {
  public boolean accept(File dir, String name) {
    return name.toLowerCase().endsWith(".mp4");
  }
};

// list all the folders inside the main directory
String[] listFolders = folder.list(new java.io.FilenameFilter() {
  public boolean accept(File current, String name) {
    return new File(current, name).isDirectory();
  }
});

// list the files in the data folder, passing the filter as parameter
String[] filenames = folder.list(pngFilter);

return(filenames);
}

As this is a graded problem I would like to ask not to give me a solution but just to point out what could be causing this or if it's a known bug.

I am coding a program that needs to draw some content. The drawing is managed by a function that is invoked at the mouseClicked event.

Before the screen is drawn, the entire screen is refreshed within the called function using background(255).

The thing I am running into is that from time to time text content is placed on top of old content or lines are drawn towards the point that make up the starting point from where the text is drawn.

It does not produce this problem every time the program runs nor are any variables used that could effect the logic behind what is happening. Most annoying is that I can not seem to reproduce it myself. Going through the application the exact same way twice could one time produce this issue and the other time everything goes fine.

Any suggestions into what could be causing this would be great.

Its there some way to ensure a clean state of the matrix right at the beginning of draw loop?

Edit:

            father.clip(posX, posY, w, h);

    if(father.mouseX-posX>0&&father.mouseX<posX+w+l&&
       father.mouseY-posY>0&&father.mouseY<posY+h+l)
        sliderY-=father.mouseEvent.getCount()*7;
    father.mouseWheel();
    sliderX=sliderX>0?0:sliderX<-mW+w?-mW+w:sliderX;
    sliderY=sliderY>0?0:sliderY<-mH+h?-mH+h:sliderY;
    for(int i=0;i<childs.size();i++){
        XYEntity child=childs.get(i); 
        if(down){ 
            sliderX+=hit1?+1:hit2?-1:0;
            sliderY+=(hit3?+1:hit4?-1:0);
            sliderX=hitX?-(((mW-w)/(w-2*l))*(father.mouseX-posX-l)):sliderX;
            sliderY=hitY?-(((mH-h)/(h-2*l))*(father.mouseY-posY-l)):sliderY;
            sliderX=sliderX>0?0:sliderX<-mW+w?-mW+w:sliderX;
            sliderY=sliderY>0?0:sliderY<-mH+h?-mH+h:sliderY;
        }
        father.pushMatrix();

        father.translate(sliderX, sliderY); 

        child.xt=sliderX+this.xt;
        child.yt=sliderY+this.yt;

        child.render(father);

        father.popMatrix();
    }

    father.noClip();

    <child>

@ Override
public void render(Container view) {
    father.stroke(25,25,200);
    father.fill(0);
    father.rect(posX, posY, w, h);
    String fullChat="";

    for(int i=chat.size()>maxMsg?chat.size()-maxMsg:0;i<chat.size();i++){
        fullChat+=chat.get(i)+"\n";
    }
    father.fill(/**i%2==0?style1:*/style2);
    //father.textSize(size);
    father.text(fullChat, posX+margin, posY+margin+size/2,w,h);
}

I put in the "faulty" code, i see a pair of clip,noClip and a pair of push and pop, i cant understand how possibly i could get an error on the pop, am i missing some implicit pop in my code?

I have been through a lot of permutations with Linux/Windows platforms and SBCs' but the Arduino IDE and like microcontrollers seems to be the best option for this application.

Any help would be appreciated.

Thanks in Advance,

Ken

void applyColor() {  // Generate the heat map
  pushStyle(); // Save current drawing style
  // Set drawing mode to HSB instead of RGB
  colorMode(HSB, 1, 1, 1);
  loadPixels();
  int p = 0;
  for (int r = 0; r < height; r++) {
    for (int c = 0; c < width; c++) {
      // Get the heat map value
      float value = interp_array[c][r];
      // Constrain value to acceptable range.
      value = constrain(value, mintemp, maxtemp);
      // Map the value to the hue
      // 0.2 blue
      // 1.0 red
      value = map(value, mintemp, maxtemp, 0.2, 1.0);
      pixels[p++] = color(value, 1, 2);
    }
  }
  updatePixels();
  popStyle(); // Restore original drawing style
}

I have been using processing for many years and are now starting learn more java. In my course we are using NetBeans. I wounder are there any advantages of starting to code processing sketches in NetBeans or Eclipse instead of Processing. For example if I want to integrate a processing sketch in a pure java sketch.

What advantages could there be of switching the IDE from Processing to NetBeans or Eclipse?

I have integrated processing into netbeans by using these following steps. Posting it here if it could help anyone.

1) Create new java project
2) Copy the files in ”contents/Resources/Java/core/library” to a new folder called for example ”_ProcessingLibraries”
3) Right click ”Libraries” in your project in NetBeans and choose ”Add folder/library” and select and add all the jarfiles
4) Create a new java class and call it for example ”MySketch”
5) Write in MySketch class:

package pkg6_processing;

import processing.core.*;  // import the processing core

public class MySketch extends PApplet {  // extend the PApplet for inherit all

    @ Override
    public void settings() {
        size(300, 300);
    }

    @ Override
    public void setup() {
        fill(120, 50, 240);
    }

    @ Override
    public void draw() {
        ellipse(mouseX, mouseY, 20, 20);
    }
}

6) Run the PApplet in the main class

package pkg6_processing;

public class Main {

    public static void main(String[] args) {
        MySketch.main("pkg6_processing.MySketch"); // run the applet in main
    }
}

Does anybody know what exception I should use for this error? Right now I am using runtime.

Thanks!

     public void controlEvent(ControlEvent theEvent) {
     //println(theEvent.getController().getName());

    }

    public void Button1() {
          println("a button event from colorB: ");
            fill(255,0,0); 
            textSize(12);
            text("" + q[0]*rad2deg, 170, 360);
            text("" + q[1]*rad2deg, 170, 380);    
            text("" + q[2]*rad2deg, 170, 400);
            text("" + q[3]*rad2deg, 280, 360);
            text("" + q[4]*rad2deg, 280, 380);
            text("" + q[5]*rad2deg, 280, 40); 

        }

On release of the button the values flashes on the screen and then disappears. Not sure how to fix this issue. I did a web search but nothing. I am using processing 3 with the latest library. I have attached a screen shot of the GUI for reference. The offending fields are t0 through t6. Ultimate intent to have these update as the calculations for robot arm position is calculated. Also tried to this with a ControlP5 textfield and textarea but they don't update until after the last iteration is completed and only shows the last iteration.

Heres the actual link: https://drive.google.com/file/d/0BwzZjH9KYYMDcXBHWkdrdU1yZEk/view?usp=sharing

v/R Mike

void draw() {
  background(255);

  // Update and display all balls
  for (int i = 0; i < balls.length; i ++ ) { // Whatever the length of that array, update and display all of the objects.
    balls[i].gravity();
    balls[i].move();
    balls[i].display();
  }
}

void mousePressed() {
  // A new ball object
  Ball b = new Ball(mouseX,mouseY,24); // Make a new object at the mouse location.
  balls = (Ball[]) append(balls,b);

What I am not clear about is: when the program is running, and then press mouse,

1. draw function will halt immediately (even it is in the middle line of its code), mousePressed function will run once, then draw function continue to run until mousePressed is triggered again or the program reload or stopped?
   
2. draw function will finish its latest run and then halts, then mousePressed function will run once, then draw function continue to run until mousePressed is triggered again or the program reload or stopped?
   
3. both draw and mousePressed functions are running at the same time, but mousePressed runs only once, draw will continue until the program is stopped.
   

which one is correct way of understanding their execution order behind the curtain? or how should I understand it?

Thank you!

Kenny

    void setup() {
     size(525, 680);
    }

    void draw() {
       background(0);
      rect(50, 50, 400, 400);
    }

    void keyPressed() {
     if (key == 'p'){         //pixelates a large portion of the screen
     loadPixels();
     for (int i = 100000; i < pixels.length; i++) {
     float rand = random(255);
     color a = color(rand, 110, 200, 100);
     pixels[i] = a;
    }
     updatePixels();  
     noLoop(); 
    }
    if (key == 'e') {   //switches two parts of the image
    PImage p = get();
    copy(p, 0, 0, 100, 400, 0, 280, 100, 400);
    copy(p, 0, 400, 100, 280, 0, 0, 100, 280);  
    }
    } 

Thank you for any help and ideas!!