Processing Forum

"Unable to load pjs sketch files: lifetime_web.pde ==> Invalid XHR status 404" message in browser

[3 Replies]
- 01-Oct-2011 03:15 AM
- Forum: Processing with Other Languages
hi everybody,
i'm trying to load a javascript processing sketch on the web but every time i load the page it returns this message:

Un able to load pjs sketch files: lifetime_web.pde ==> Invalid XHR status 404

when i try that on my computer works fine, i think is something in the pjs file but unfortunately i don't know javascript.

does someone know how to fix that?

thanks in advance!

Is there a way to set a processing.js fullscreen in the browser?

[3 Replies]
- 30-Sep-2011 07:22 AM
- Forum: Integration and Hardware
Hi everybody,
i want to use the following sketch as a background of a webpage, so i have exported it with processing 2.0 to run in .js and it works fine, except that i want it to be fullscreen and i don't know how to achieve that. i already tried by putting '100%' in width and height in the style but it doesn't work and i don't know how to program javascript, any suggestions?
2. ArrayList <John> johnsons;
3. int num = 300;
5. void setup() {
6. size(800, 600);
7. smooth();
8. johnsons = new ArrayList<John>();
9. for (int i = 0; i < num; i++) {
10. johnsons.add( new John() );
11. }
12. }
14. void draw() {
15. background(255);
16. /*for (int i = 0; i < num; i++) {
17. johnsons.get(i).move();
18. johnsons.get(i).draw();
19. } è come scrivere il paragrafo seguente*/
20. for (John j : johnsons) {
21. j.move();
22. j.draw();
23. j.checkMouse();
24. }
25. }
27. void mousePressed() {
28. for (int i = 0; i < num; i++) {
29. johnsons.get(i).mouse();
30. }
31. }
34. class John {
35. float px, py;
36. float dx, dy;
37. float damp;
38. color sc;
40. John() {
41. px = width / 2;
42. py = height/2;
43. dx = random(width);
44. dy = random(height);
45. damp = random(0.01, 0.04);
46. sc = color(random(100, 255), 0, random(15, 25));
47. }
49. void move() {
50. dx += random(-5, +5);
51. dy += random(-5, +5);
52. px += (dx - px) * damp;
53. py += (dy - py) * damp;
54. }
56. void draw() {
58. fill(sc, 30);
59. noStroke();
60. ellipse(px, py, 20, 20);
61. fill(100);
62. noStroke();
63. ellipse(px, py, 5, 5);
64. }
66. void mouse() {
67. dx = mouseX;
68. dy = mouseY;
69. }
71. void checkMouse() {
72. float mouseRadius = 20;
73. float d = dist(mouseX, mouseY, px, py);
74. if (d<mouseRadius && d > 0.0001) {
75. dx += (px-mouseX) / d*mouseRadius;
76. dy += (py-mouseY) / d*mouseRadius;
77. }
78. }
79. }

Arduino digitalRead and digitalWrite don't work

[2 Replies]
- 20-Jun-2011 03:32 PM
- Forum: Integration and Hardware
hi everybody,
I'm having problems with Arduino and Processing working together, i upload the StandardFirmata on the board and when i write something on Processing to use the analog pins works fine, but when it comes to the digitalRead or digitalWrite they don't work. If i try with Firmata test, everything works, the digital values go high and low but when it comes to Processing it doesn't.
This is a simple code that i wrote to try digitalRead and digitalWrite on processing, maybe i've been typing something wrong. The monitor keeps showing "0" also if i press the button, and the LED is off. I've tried the same on the Arduino IDE and it works. Another thing is that every time that i stop processing, Leopard says that my_sketch crashes after the use of the librxtxSerial.jnilib plugin.
1. import processing.serial.*;
  import cc.arduino.*;
  
  Arduino arduino;
  int ledPin = 13;
  int butPin = 8;
  
  void setup(){
  arduino = new Arduino(this, Arduino.list()[0], 57600);
  arduino.pinMode(ledPin, Arduino.OUTPUT);
  arduino.pinMode(butPin, Arduino.INPUT);
  }
  
  void draw() {
  int b = arduino.digitalRead(butPin);
  println(b);
  arduino.digitalWrite(ledPin, arduino.HIGH);
  }

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