Processing Forum

eclipse + processing

[2 Replies]
- 29-Nov-2010 04:42 PM
- Forum: Integration and Hardware
Hi,

I'm trying to setup processing in eclipse under Linux following this tutorial, but I can't add the core.jar
I know close to nothing about eclipse, only done some test with java.

Any ideas?

Thanks.

processing & bash files (linux)

[3 Replies]
- 21-Nov-2010 09:04 PM
- Forum: Programming Questions
Hi All,

I have an .pde applet that writes bash files (.sh) to automate some tasks in other software under ubuntu. The problem is I can't make them automatically executable using chmod, so when I call from the applet with open() the script opens in a text editor instead of executing in the terminal.
Is there any simple way to control the terminal using processing?

In the open() documentation recomend to "Be sure to make the file executable before attempting to open it (chmod +x)." But even making the .sh executable it does not executes in the terminal but opens in gedit. Any ideas??

Thanks

2d array animation problem

[2 Replies]
- 14-Nov-2010 10:38 PM
- Forum: Programming Questions
Hi,

This is part of a larger script, that's why I need the array plus the class (it may seem too much in this script).
What I'm trying to do here is to move the black circle down, but I can't get why there are two circles...
I'm sure it should be very simple, but I just can't solve it.

The main script:
1. Move objMove;
  
  int cols = 11;
  int rows = 11;
  int[][] dotMatrix = new int[cols][rows];
  
  void setup() {
  frameRate(30);
  size(200,200);
  noStroke();
  smooth();
  objMove = new Move(9);
  }
  
  void draw() {
  matrix();
  objMove.display();
  }
  
  void matrix() {
        background(200);
        for (int i = 0; i <= 9; i = i+1) {
          for (int j = 0; j <= 9; j = j+1) {
            if (dotMatrix[i][j] == 1) {
              fill(50);
              ellipse(20*i+10, 20*j+10, 18, 18);
  
            } else {
  
               fill(255);
               ellipse(20*i+10, 20*j+10, 18, 18);
            }
          }
        }
  }
The class:
1. class Move {
  
  float pX = random(0,10);
  int posX = int(pX);
  int num;
  int posY = 0;
  boolean stop = false;
  
  Move(int number) {
  num = number; // balls
  }
  
  void display() {
  
      if (stop == false) {
      dotMatrix[posY][posX] = 1;
        if (dotMatrix[posY][posX] == 1) {
            fill(50);
            ellipse(20*posX+10, 20*posY+10, 18, 18);
            if (keyPressed) {
              dotMatrix[posY][posX] = 0;
              posY = posY + 1;
              dotMatrix[posY][posX] = 1;
              if (posY >= 10) {
              stop = true;
              }
            }
          }
        }
     }
  }

controlP5 basics

[1 Reply]
- 11-Nov-2010 03:09 PM
- Forum: Contributed Library Questions
Hi,

Is there any tutorial on how to use this library, the web has lots of examples and a great reference, but is there anything around that shows a basic intro?

Thanks

software interaction

[4 Replies]
- 11-Nov-2010 02:53 PM
- Forum: Programming Questions
Hi
This might be a dumb question but, here it goes:

Is there any simple way to control "external" application with processing?
I mean, for example running a python script for getting its input later?
Is there any good tutorial for software interaction?

Thanks

from 2D array to .html

[2 Replies]
- 04-Aug-2010 07:54 PM
- Forum: Programming Questions
Hi All,
I'm trying to transform some data stored in a 2d array into an .html (the idea is to print this so other program can read it).

I have a 2d Array with a set of numbers:
1. arrayMatrix[i][j] = { {0,1,0,0,0},
2. {0,1,0,1,1},
3. {0,0,0,0,0},
4. {0,0,0,1,0},
5. {0,1,0,0,1} };
And I need to print them in an .html ordered like:
1. 0,1,0,0,0,
2. 0,1,0,1,1,
3. 0,0,0,0,0,
4. 0,0,0,1,0,
5. 0,1,0,0,1
I'm changing the numbers into strings and printing with saveString:
1. for (int i = 0; i <= 5; i = i+1) {
2. for (int j = 0; j <= 5; j = j+1) {
3. arrayMatrix[i][j] = rowData; // << this is clearly wrong...
4. textMatrix = Integer.toString(rowData);
5. saveStrings("2dMatrix.html", textMatrix);
6. }
7. }
Clearly is not possible to convert an array into an integer (line 3), neither is possible to print the complete array with saveString... maybe changing the array into a string would do it, but how? and how to cut the rows?? (sorry I don't have a sscce code). Any ideas?

Thanks !!!!

2d Array Movement problem

[13 Replies]
- 14-Jul-2010 11:56 PM
- Forum: Programming Questions
Hi All,

I'm working with 2d matrix movement and I haven't been able to fix a problem, the idea is to move some "dots" manipulating a 10x10 matrix.

For the moment I'm working with a 200x200 array (I have to fix it) but I have other "newbie" problems:

1. When the dots start to move the bottom row is not included, and I can't get why...

2. The movement doesn't start with the first click of the mouse, only with the second, and that brings me other further problems when extending the code.

3. The idea is to do one movement per click, but the loop is so quick that with every click the dots move 3 or 4 spaces.
Here is a functional short extract:
1. int[][] dotMatrix;
3. void setup() {
4. size(200,200);
5. background(200);
6. noStroke();
7. smooth();
8. dotMatrix = new int[200][200]; // matrix size (to fix)
9. dotMatrix[70][70] = 1; // feed matrix
10. dotMatrix[90][70] = 1;
11. dotMatrix[70][90] = 1;
12. matrix();
13. }
15. void matrix() { // draw main matrix
16. for (int i = 10; i <= 200; i = i+20) {
17. for (int j = 10; j <= 200; j = j+20) {
18. ellipse (i, j, 18, 18);
19. }
20. }
21. }
23. void transpUp() { // movement operation
24. int translator = 20;
25. for (int o = 10; o <= 190; o = o+translator) {
26. for (int p = 10; p <= 190; p = p+translator) {
27. int control = p;
28. if (dotMatrix[o][p] == 1) {
29. fill(255);
30. ellipse(o,p,18,18);
31. if (control <= 10) {
32. control = control + 200;
33. }
34. int pp = control-translator;
35. dotMatrix[o][pp] = 1;
36. ellipse(o,p,18,18);
37. dotMatrix[o][p] = 0;
38. }
39. }
40. }
41. }
43. void draw(){
44. for (int i = 10; i <= 190; i = i+20) {
45. for (int j = 10; j <= 190; j = j+20) {
46. if (dotMatrix[i][j] == 1) {
47. fill(200);
48. ellipse(i,j,18,18);
49. } else {
50. dotMatrix[i][j] = 0;
51. }
52. }
53. }
55. if ((mousePressed)) { // active movement with mouse
56. transpUp();
57. }
58. }
Any help or comment is welcome !! thanks a lot.

Processing & JAVA

[6 Replies]
- 14-Jul-2010 07:20 AM
- Forum: General Discussion
How similar are they? in terms of syntax.
If I can't find a sample procedure/algorithm/problem in a Processing book, is Java the answer?

Thanks...

for loop question [newbie]

[5 Replies]
- 14-Jul-2010 05:39 AM
- Forum: Programming Questions
Hi,
I'm trying to reduce this block into a more "elegant" one:
for (int o = 10; o <= 190; o = o+20) {

   if (dotMatrixSave[o][10] == 1) {

   dotMatrix[o][190] = 1;

   }

}

for (int o = 10; o <= 190; o = o+20) {

   if (dotMatrixSave[o][30] == 1) {

   dotMatrix[o][170] = 1;

   }

}

for (int o = 10; o <= 190; o = o+20) {

   if (dotMatrixSave[o][50] == 1) {

   dotMatrix[o][150] = 1;

   }

}

for (int o = 10; o <= 190; o = o+20) {

   if (dotMatrixSave[o][70] == 1) {

   dotMatrix[o][130] = 1;

   }

}

for (int o = 10; o <= 190; o = o+20) {

   if (dotMatrixSave[o][90] == 1) {

   dotMatrix[o][110] = 1;

   }

}

for (int o = 10; o <= 190; o = o+20) {

   if (dotMatrixSave[o][110] == 1) {

   dotMatrix[o][90] = 1;

   }

   }

for (int o = 10; o <= 190; o = o+20) {

   if (dotMatrixSave[o][130] == 1) {

   dotMatrix[o][70] = 1;

   }

}

for (int o = 10; o <= 190; o = o+20) {

   if (dotMatrixSave[o][150] == 1) {

   dotMatrix[o][50] = 1;

   }

}

for (int o = 10; o <= 190; o = o+20) {

   if (dotMatrixSave[o][170] == 1) {

   dotMatrix[o][30] = 1;

   }

}

for (int o = 10; o <= 190; o = o+20) {

   if (dotMatrixSave[o][190] == 1) {

   dotMatrix[o][10] = 1;

   }

}
Like this one, which by the way does not work...
1. for (int y = 10; y <= 190; y = y+20) {
2. for (int z = 190; z >= 10; z = z-20) {
3. if (dotMatrixSave[y][y] == 1) {
4. dotMatrix[y][z] = 1;
5. }
6. }
7. }
I'm sure the solution is very simple, but I haven been able to fix it.

Any help will be welcomed....

Thanks.

2d matrix transformation (with 2d array) [newbie]

[6 Replies]
- 13-Jul-2010 09:46 PM
- Forum: Programming Questions
Hi
I'm working with a 2d array of points to draw a 2d "grid" of points, to get something like this:

00000

00000

00000

00000

then I feed the array so i can have some figures inside it, like this

00000

00110

01100

00000

and I'm trying to translate the info of the array so I can move the figure to the left, like this

00000

11000

10001

00000

doing this: (the matrix is 10 x 10 circles, each one size 18)
void moveLeft() {

   int trans = 20;

   for (int i = 10; i <= 190; i = i+trans) {

   for (int j = 10; j <= 190; j = j+trans) {

   int cont = i;

   if (matrix[i][j] == 1) {

   if (i <= 10) {

   cont = cont + 200;

   }

   matrix[cont-trans][j] = 1;

   fill(50);

   ellipse(i,j,18,18);

   matrix[i][j] = 0;

   }

   }

   }

}
the problem is that the first time I apply the function moveLeft() the circles are redrawn in the same location, only the second time it changes position, and the when I apply moveUp() [similar function, but working with j ] the circles move left first and then up... I can't get why!!! Any help?

The other problem is I can't figure out how to move the circles to the other side, I mean Right and Down... it should be easy but I cant find the way.

Thanks a lot

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