import processing.video.*;

final PApplet projector0 = new ProjectorSketch();
final PApplet projector1 = new ProjectorSketch();

void setup() {
  size(300, 300, JAVA2D);
  smooth(4);
  noLoop();
  stroke(-1);

  runSketch(new String[] { "--display=1", "--present",  "--sketch-path=" + sketchPath(), "Projector" }, projector0);

}

void draw() {
  background(0);
}


class ProjectorSketch extends PApplet {
  Movie movie;


 void setup() {

   stroke(#FFFF00);
   movie = new Movie(this, "transit.mov");
  movie.loop();

   }


  public void settings() {
    size(displayWidth, displayHeight, JAVA2D);

  }

  void draw() {

  image(movie, 0, 0, width, height);
  }
}

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

With that code I get "createGraphics() requires size to use P3D or P2D" (paraphrasing)

Or if I try to create an instance of a Syphon window, for example, I get null pointer.

What's the deal? My goal is to create a 2-window app with Syphon output from one window and a P5 control setup on the other.

Usage: PApplet <appletname>

For example I am using these 2 Java-files in a project:

Main.java:

`package de.hpi.javaide.firststeps;
import processing.core.PApplet;
public class Main {
    public static void main(String[] args) {
        PApplet.main(new String[]{"--present", "de.hpi.javaide.firststeps.Game"});
    }
}
`

Game.java:

package de.hpi.javaide.firststeps; import processing.core.PApplet; @SuppressWarnings("serial") public class Game extends PApplet { @Override public void setup() { noStroke(); fill(255, 10, 10); rectMode(CORNER); rect(5, -100, 20, 10); } @Override public void draw() { } }

These files come from a course of OpenHPI. Last year processing worked without any problem. Now I get the above shown error code when using any java file using process.

I am using eclipse neon, java version "1.8.0_161" and core.jar (version 3)

Any help appreciated! Thanks in advance for your help!

PWindow w;
Radar r;

void settings() {
  size(500, 500, P3D);
}
void setup() {
  w = new PWindow();
  r = new Radar();
}


void draw() {

  translate(width/2, height/2);
  box(200);
}

class Radar{

Radar(){
}

void display(){
  stroke(255);
  ellipse(width/2, height/2, 100, 100);
}

}

class PWindow extends PApplet {

  PWindow() {
    super();
    PApplet.runSketch(new String[] {this.getClass().getSimpleName()}, this);

  }

  void settings() {
    size(500, 500, P2D);
  }

void setup(){
background(0);
}

  void draw(){
  r.display();
  }
}

but it doesn't work (crash). im really don't know how use a class inside a extra applet. any suggestion?

I'm trying to play some movies and sound in a processing sketch; there are 10 movies and 1 sound file - all the movies are fairly small [<=5MB]; I create them in setup and call .play() on them, and then in draw() I use image() on them, and I also use movieEvent() function to call .read() on them; whenever I run this the videos lag and my CPU spikes to 100%

Surely playing 10 concurrent movies isn't that onerous?

Does anyone have any ideas for how to improve the performance or can tell me if I'm doing something wrong or missing something?

Any help would be much appreciated, thanks

Thanks

PImage img; //image is 1000x1000 pixels

int x = img.width;  //x is same as image width
int y = img.height;  //y is same as image height

Void setup() {
 size (x,y);  //screen size is same as image
 img = loadImage ("01.JPG"); 
}

voif draw() {
  image (img, 0,0); 
}

//I need to know how to manipulate image sizes without distorting the propotions

In the situation below, if I move "image(example.get(0),0,0);" to draw and put "sa." or "SecondApplet." in front of it. I get an error that the name isn't recognizable or that I'm mixing static with non-static. How would I refer to the second applet in this case?

ArrayList<PImage> example = new ArrayList<PImage>();

void setup() {
  size(100, 100);

  text.add(loadImage("example.png"));

  String[] args = {"TwoFrameTest"};
  SecondApplet sa = new SecondApplet();
  PApplet.runSketch(args, sa);
}

void draw() {
  background(0);
  ellipse(50, 50, 10, 10);

}     

public class SecondApplet extends PApplet {

  public void settings() {
    size(200, 100);
  }
  public void draw() {
    background(255);
    fill(0);
    ellipse(100, 50, 10, 10);
    //////////
    image(example.get(0),0,0);
    /////////
  }
}

class PWindow extends PApplet { // PImage[] subs = new PImage[2]; // String testKey="m"; PWindow() { super(); PApplet.runSketch(new String[] {this.getClass().getSimpleName()}, this);
}

void settings() { size(1920, 1080); }

void setup() { background(150); // subs[0]=loadImage("test.png"); }

void draw() { //if (keyPressed && key == testKey.charAt(0)){ // image(subs[0], 0,0); println("well it works"); //} }

void mousePressed() { println("mousePressed in secondary window"); } }

PImage img;
PImage picture;
Integer[] palette;

void setup(){
  img = loadImage("palette.jpg");
  palette = getPalette(img);
  picture = loadImage("picture.jpg");
  size(picture.width,picture.height);
  background(255);
}

void draw(){
  colour(picture, palette);
  noLoop();
} 

I have written a code that uses the "controlP5" library. The sketch has some sliders and textboxes. The setup function of the sketch has the information about the position of the gui elements.

So, I want to make a simulation. In fact, I did on other sketch, but I got a size problem when I implement the simulation and the code on the same sketch. Let me explain a bit more about the simulation :

I used P3D to apply the coordinates of the shape by using vertex function.

Here is a quick example of what I did so far :

          public class SecondApplet extends PApplet {
          public void settings() {
                size(1000, 600,P3D);
              }
          public void setup() {

            translate(width/2,height/3, -200);
            stroke(255);
            noFill();

            beginShape();

            vertex(-82.27,0,47.5); vertex(0,0,-23.75);
            vertex(82.27,0,47.5); vertex(-82.27,0,47.5);


            vertex(-270,0,0); vertex(-65,397.5,0);
            vertex(32.5,397.5,-56.3); vertex(32.5,397.5,56.3);

            vertex(-65,397.5,0); vertex(32.5,397.5,56.3);
            vertex(135,0,233.827); vertex(82.27,0,47.5);

            vertex(0,0,-23.75); vertex(135,0,-233.827);
            vertex(32.5,397.5,-56.3);
            endShape();
          }
        }

        void setup() {
          size(1000,800);
          frameRate(25);

          controlP5 = new ControlP5(this);
          controlP5.setAutoInitialization(false);

          /* Setups of the gui elements ...
              -----------------------*/

          SecondApplet sa = new SecondApplet();
          String[] args = {"TwoFrameTest"};
          PApplet.runSketch(args, sa);
          updateGuiElements();
        }

So, the situation is the size problem on the two windows that I wanted to see when I run the sketch. The main window, which is on the "void setup()" section, is smaller than the second window.

I tried to find out the solution, but I couldn't overcome this problem. What I have to do in order to solve this situation ?

( I tried to explain the problem as well as I can).

I am looking forward to your suggestions. Thanks in advanced.

Have a nice works to all..

public class Sketch extends PApplet {

    public void setup() {
        background(52,74,85);
        noLoop();
    }

    public void draw() {
        ellipse(width/2, height/2, 100, 100);
    }
}

IMAGE:

I have installed the last GL video version, to see if I can solve my "jump" problems (https://forum.processing.org/two/discussion/13673/jump-in-videolibrary-causes-java-error#latest).

But, with version 1.2.1 playing the videos the image freezes constantly.

I'm testing it in 5 different Raspberry at the same time, with the same results (253% CPU!). All software updated.

PID USER      PR  NI    VIRT    RES       SHR S    %CPU  %MEM     TIME+ COMMAND                 
1033 pi        20   0  457288  91032  13084 S 253.2 23.2 351:44.38 java 

I'm also playing the same video file in 8 Raspberry, same hardware and software, but with GL video 1.2. Better performance:

PID USER      PR  NI    VIRT    RES        SHR S      %CPU   %MEM   TIME+ COMMAND                 
1069 pi         0 -20  371956  58540  12232 S  48.3 14.9 136:07.68 java   

Video file:

Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, smpte170m/smpte170m/bt709), 800x480, 9462 kb/s, SAR 1:1 DAR 5:3, 60 fps, 60 tbr, 60 tbn, 120 tbc (default)
Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, 1 channels, s16, 768 kb/s (default)

Any help is welcome!

Best.

Any suggestions?

So, I'm following D. Shiffman's "Nature of Code" course on Youtube.

class Mover {

  PVector position;
  PVector velocity;
  PVector acceleration;
  float mass;

  Mover() {
    position = new PVector(random(width), 0);
    velocity = new PVector(0,0);
    acceleration = new PVector(0,0);
    mass = random(0.5, 4);
  }

  void applyForce(PVector force) {
     PVector f = PVector.div(force, mass);
     acceleration.add(f);
  }

  void update() {
    velocity.add(acceleration);
    position.add(velocity);
    acceleration.mult(0);
  }

  void display() {
    stroke(0);
    fill(127);
    ellipse(position.x,position.y, mass * 20, mass * 20);
  }

  void checkEdges() {

    if (position.x > width) {
      position.x = width;
      velocity.x *= -1;
    } else if (position.x < 0) {
      velocity.x *= -1;
      position.x = 0;
    }

    if (position.y > height) {
      velocity.y *= -1;
      position.y = height;
    }

  }

}

Mover[] movers;


void setup() {
  size(640, 360);
  movers = new Mover[5];
  for(int i = 0; i < movers.length; i++) {
    movers[i] = new Mover();
  }
}

void draw() {
   background(255);

  for(Mover m: movers) {
    PVector gravity = new PVector(0, 0.3);
    gravity.mult(m.mass);
    m.applyForce(gravity);



    if(mousePressed) {
      PVector friction = m.velocity.copy();
      friction.normalize();
      friction.mult(-1);
      float c = 0.1;
      friction.mult(c);
      m.applyForce(friction);
    }


    m.update();
    m.checkEdges();
    m.display();
  }
}

This example works perfectly fine when placed in a single tab. But then I decided to leave the class in one tab and the rest of the stuff in another one. And as soon as my setup() gets moved to a new tab, I get an error "size() cannot be used here" when trying to run the sketch.

Processing considers multiple tabs to be just one big file, doesn't it? So how does this make sense?

What am I doing wrong? Error

(if I print the value, it's ok).

def setup():

 photo = loadImage("Photo.jpg")
 print(photo.height)
 image(photo, 0, 0)

Thank you!

Thanks

Now the issue I am having is for some reason the settings function under the SecondApplet class seems to affect the window that is made using the original setup function. So when the program is ran, the window is reduced to a super small ~100x100 size even if both size calls are size(1280,650), as well the second window now is the correct size. But if the settings function is commented out, the original window is correct, and the new window will be ~100x100.

Goal is to have the button called "Suspension_Setup" open a new window to enter data about the suspension points on the users vehicle, and then save them in a file to be used by the original window to display what I am trying to do.

If anyone can, could I also get an answer on a good way to close the second window, while preserving the original window? I have looked, but the only thing I have seen is using PFrame, and I don't know if I need that yet.

This is super bare bones right now due to the fact I am trying to just make the framework for the interface first, and ran into this issue very quickly.

Code:

import controlP5.*;  // Importing GUI library

ControlP5 cp5;  // Creating a new object for the GUI library

CheckBox checkbox;  // Creating a checkbox object

DropdownList d1, d2;  // Creating a Dropdown menu object

boolean show = false;  // Setting the default state of the second window to false

void setup()
{
  size(1280, 650);
  cp5 = new ControlP5(this);
  checkbox = cp5.addCheckBox("checkBox")
    .setPosition(500, 500)
    .setColorForeground(color(120))
    .setColorActive(color(255))
    .setColorLabel(color(255))
    .setSize(40, 40)
    .setItemsPerRow(3)
    .setSpacingColumn(30)
    .setSpacingRow(20)
    .addItem("0", 0)
    .addItem("50", 50)
    .addItem("100", 100)
    .addItem("150", 150)
    .addItem("200", 200)
    .addItem("255", 255);

  // create a DropdownList
  d1 = cp5.addDropdownList("myList-d1").setPosition(500, 20);

  formatDropdown(d1); // customize the first list

  // create a second DropdownList
  d2 = cp5.addDropdownList("myList-d2").setPosition(500, 80);

  formatDropdown(d2); // customize the second list

  // create a new button with name 'buttonA'
  cp5.addButton("Suspension_Setup")
    .setPosition(0, 0)
    .setSize(80, 30);
}


void formatDropdown(DropdownList ddl)
{
  // a convenience function to customize a DropdownList
  ddl.setSize(200, 200);
  ddl.setBackgroundColor(color(190));
  ddl.setItemHeight(30);
  ddl.setBarHeight(30);
  ddl.setCaptionLabel("dropdown");
  for (int i = 0; i < 40; i++)
  {
    ddl.addItem("item " + i, i);
  }
  //ddl.scroll(0);
  ddl.setColorBackground(color(60));
  ddl.setColorActive(color(255, 128));
  ddl.close();

  // remove items from the pulldown menu  by name
  // d1.removeItem("item "+cnt);

  // add new items to the pulldown menu
  // int n = (int)(random(100000));
  // d1.addItem("item "+n, n);
}

void keyPressed()  // Might be used in future for shortcuts or special features
{

}

// function Suspension_Setup will receive changes from controller with name Suspension_Setup
public void Suspension_Setup(int theValue) {
  println("a button event from Suspension_Setup: "+theValue);
  show = true;
  String[] args = {"TwoFrameTest"};
  SecondApplet sa = new SecondApplet();
  PApplet.runSketch(args, sa);
}

void controlEvent(ControlEvent theEvent)
{
  // DropdownList is of type ControlGroup.
  // A controlEvent will be triggered from inside the ControlGroup class.
  // therefore you need to check the originator of the Event with
  // if (theEvent.isGroup())
  // to avoid an error message thrown by controlP5.

  if (theEvent.isGroup())
  {
    // check if the Event was triggered from a ControlGroup
    println("event from group : "+theEvent.getGroup().getValue()+" from "+theEvent.getGroup());
  } else if (theEvent.isController())
  {
    println("event from controller : "+theEvent.getController().getValue()+" from "+theEvent.getController());
  }
}

void draw()
{
  background(0);
}


public class SecondApplet extends PApplet
{
  public void settings()
  {
    size(1280, 650);
  }
  public void draw()
  {
    if (show)
    {
      background(255);
      noFill();
      ellipse(100, 50, 10, 10);
    }
    show = false;
  }
}

Thank you for the help!

PImage loadedImgage;
String selectedPath = "";

void fileSelected(File selection) {
  selectedPath = selection.getAbsolutePath();
}

void setup() {
  size(600, 600);
  selectInput("Select a file to process:", "fileSelected");
}

void draw() {  
  if(selectedPath != ""){
    loadedImgage = loadImage(selectedPath);
    image(loadedImgage, 0, 0);
  }
}

Code below

            // by d whyte

int[][] result;
float t;

float ease(float p) {
  return 3*p*p - 2*p*p*p;
}

float ease(float p, float g) {
  if (p < 0.5) 
    return 0.5 * pow(2*p, g);
  else
    return 1 - 0.5 * pow(2*(1 - p), g);
}

float mn = .5*sqrt(3);

void setup() {
  setup_();
  result = new int[width*height][3];
}

void draw() {

  if (!recording) {
    t = mouseX*1.0/width;
    draw_();
  } else {
    for (int i=0; i<width*height; i++)
      for (int a=0; a<3; a++)
        result[i][a] = 0;

    for (int sa=0; sa<samplesPerFrame; sa++) {
      t = map(frameCount-1 + sa*shutterAngle/samplesPerFrame, 0, numFrames, 0, 1);
      draw_();
      loadPixels();
      for (int i=0; i<pixels.length; i++) {
        result[i][0] += pixels[i] >> 16 & 0xff;
        result[i][1] += pixels[i] >> 8 & 0xff;
        result[i][2] += pixels[i] & 0xff;
      }
    }

    loadPixels();
    for (int i=0; i<pixels.length; i++)
      pixels[i] = 0xff << 24 | 
        int(result[i][0]*1.0/samplesPerFrame) << 16 | 
        int(result[i][1]*1.0/samplesPerFrame) << 8 | 
        int(result[i][2]*1.0/samplesPerFrame);
    updatePixels();

    saveFrame("f###.gif");
    if (frameCount==numFrames)
      exit();
  }
}

//////////////////////////////////////////////////////////////////////////////

int samplesPerFrame = 16;
int numFrames = 96;        
float shutterAngle = .5;

boolean recording = true;

void setup_() {
  size(800, 600, P3D);
  smooth(8);
  rectMode(CENTER);
  stroke(70,150,200);
  noFill();
  strokeWeight(2);
}

float x, y, z, tt;
int N = 24, M = 16;
float l = 500, w = 320;
int n = 120;
float h = 120;
float q = 0.00011, ll = .000035;

void draw_() {
  background(250); 
  pushMatrix();
  translate(width/2, height/2 - 25);
  rotateX(PI*.24);
  for (int i=0; i<N; i++) {
    x = map(i, 0, N-1, -l/2, l/2);
    strokeWeight(1.6);
    if(i==0 || i==N-1)
      strokeWeight(4);
    beginShape();
    for (int j=0; j<n; j++) {
      y = map(j, 0, n-1, -w/2-1, w/2+1);
      z = h*sin(TWO_PI*t - q*(x*x + y*y))*exp(-ll*(x*x + y*y));
      vertex(x, y, z);
    }
    endShape();
  }
  for (int i=0; i<M; i++) {
    y = map(i, 0, M-1, -w/2, w/2);
    strokeWeight(1.6);
    if(i==0 || i==M-1)
      strokeWeight(4);
    beginShape();
    for (int j=0; j<n; j++) {
      x = map(j, 0, n-1, -l/2-1, l/2+1);
      z = h*sin(TWO_PI*t - q*(x*x + y*y))*exp(-ll*(x*x + y*y));
      vertex(x, y, z);
    }
    endShape();
  }
  popMatrix();
}

When I try and changed the size in settings it does not work but it does in setup. Why is this the case?

Thanks

PImage sourceImg;
int dw, dh;

void setup () {
  sourceImg = loadImage("test2.jpg");
  surface.setResizable(true);
  dw = sourceImg.width;
  dh = sourceImg.height;
  surface.setSize(dw, dh);
  background(sourceImg); //HERE IT GIVES ME THE ERROR
}

void draw() {
  //background(sourceImg); //HERE IT WORKS
}

I don't know how to fix this. I need the background image to be drawn one time at the start of the program. What does that error mean?

Thx in advance!

PImage img = loadImage("background.jpg"); //a 100x100 background image.
size(100,100);
background(img);

However, since size() does not take in variables, how are we suppose to define a background with variable dimensions?

I have tested with the surface.setSize() function but it does not see to work.

Example:

PImage img = loadImage("background.jpg"); //a 100x100 background image.
surface.setSize(img.width,img.height);
background(img);

The error I get is: "The size of this sketch could not be determined from your code. Use only numbers (not variables) for the size() command. Read the size() reference for more details.".

void setup(){ PImage img = loadImage("image.jpg"); size(img.width*2, img.height, P2D); }

instead of the same thing in the Startup of Processing. I can't find anyone else with this problem, though. And no matter how I change the size setting it doesn't effect the resulting window.

I can see the top left corner of what I'm trying to draw if that helps. Thank you

Posted this as a bug they are saying that I am doing it wrong.....but works fine in 3.1 https://github.com/processing/processing-docs/issues/436

If there a better way of doing this???image is loaded....github seems very chaotic...like fixing one thing often messes up other stuff.