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[0 Replies]
- 22-Jun-2011 01:13 PM
- Forum: Contributed Library Questions
Hi,
I've been playing with a little interactive fabric simulation code, trying to texture it with a loaded image.

I managed to do it with vertex, the only problem is a can see the borders of each triangle (as a white line).

I looked at some samples where the texturing was done the same way , like this flafSim sketch,

the texture there seems smooth with no borders.

here is my code , I use a 600X600 jpg pic , and the physics lib

thanks

///////////

import traer.physics.*;

PImage flag;

ParticleSystem physics;

Particle[][] particles;

//Ball ball1,ball2,ball3,ball4;

int gridSize = 20;

float SPRING_STRENGTH = 0.2;

float SPRING_DAMPING = 0.1;

void setup()

{

  size(800, 600,P3D);

  smooth();

// fill(0);

  noFill();

   flag = loadImage("cal_pro_271.jpg");

   physics = new ParticleSystem(0.03, 0.01);



  particles = new Particle[gridSize][gridSize];



  float gridStepX = (float) ((width / 2) / gridSize);

  float gridStepY = (float) ((height / 2) / gridSize);



  for (int i = 0; i < gridSize; i++)

  {

   for (int j = 0; j < gridSize; j++)

   {

   particles[i][j] = physics.makeParticle(0.2, j * gridStepX + (width / 8), i * gridStepY + 20, 0.0);

   if (j > 0)

   {

   physics.makeSpring(particles[i][j - 1], particles[i][j], SPRING_STRENGTH, SPRING_DAMPING, gridStepX);

   }

   }

  }



  for (int j = 0; j < gridSize; j++)

  {

   for (int i = 1; i < gridSize; i++)

   {

   physics.makeSpring(particles[i - 1][j], particles[i][j], SPRING_STRENGTH, SPRING_DAMPING, gridStepY);

   }

  }



particles[0][0].makeFixed();

particles[0][gridSize - 1].makeFixed();



}

void draw()

{

   noFill();

  noStroke();

  physics.tick();



  if (mousePressed)

  {

   if (mouseButton == LEFT)

   {

   particles[0][gridSize - 1].position().set(mouseX, mouseY, 0);

   particles[0][gridSize - 1].velocity().clear();

   }

   else if (mouseButton == RIGHT)

   {

   particles[0][0].position().set(mouseX, mouseY, 0);

   particles[0][0].velocity().clear();

   }

  }



  int elementWidth=20;



   float xtweek = 1.02;

   float ytweek = 1.05;



  //fill(255,0,0);

  background(255);

  for (int j = 0; j < gridSize-1; j++)

  {

   beginShape(TRIANGLE_STRIP);

   texture(flag);



   for (int i = 0; i < gridSize; i++)

   {

   vertex(particles[i][j].position().x(), particles[i][j].position().y(),particles[i][j].position().z(), (elementWidth*i*xtweek), (elementWidth*j*ytweek));

   vertex(particles[i][j+1].position().x(), particles[i][j+1].position().y(),particles[i][j+1].position().z(), elementWidth*i*xtweek, elementWidth*(j+1)*ytweek);

   }



   endShape();

  }

  /*

  for (int i = 0; i < gridSize; i++)

  {

   beginShape();

   curveVertex(particles[i][0].position().x(), particles[i][0].position().y());

   for (int j = 0; j < gridSize; j++)

   {

   curveVertex(particles[i][j].position().x(), particles[i][j].position().y());

   }

   curveVertex(particles[i][gridSize - 1].position().x(), particles[i][gridSize - 1].position().y());

   endShape();

  }

  for (int j = 0; j < gridSize; j++)

  {

   beginShape();

   curveVertex(particles[0][j].position().x(), particles[0][j].position().y());

   for (int i = 0; i < gridSize; i++)

   {

   curveVertex(particles[i][j].position().x(), particles[i][j].position().y());

   }

   curveVertex(particles[gridSize - 1][j].position().x(), particles[gridSize - 1][j].position().y());

   endShape();

  }

  */







}

void mouseReleased()

{

  particles[0][gridSize - 1].velocity().set( (mouseX - pmouseX), (mouseY - pmouseY), 0 );

}

Video tracking libraries

[0 Replies]
- 20-Jun-2011 04:40 AM
- Forum: Contributed Library Questions
Hi,

I tried the Myron lib and it's great - no need for the VDIG and easy tracking functions.

The only thing is I can play with the size of the video object -

a 1.3 MG webcam can go up to 640*480, My DV cam goes only 720X576, while in other video libs I can go as much as I choose (or even without the need of an extrnal lib)

If any body has some experince with it I'll be happy to hear of a good video tracking lib without that annoying limitation I have in Myron.

Thanks

Getting JAVA sample to work

[1 Reply]
- 19-Jun-2011 10:13 PM
- Forum: General Discussion
Hi,
I'm new to processing, and I've dowlonaded some nice libraries and treid to look at their examples.
Problem is , when the sample code is ind PDE format , I can run it with out any problems, but when the examples are in JAVA format, for some reason I cannot run them. I add the JAVA file I want to run using sketch-add file (that the only way I found to get the JAVA file into my sketch) by for some reason they don't run - either I get a 200X200 gray window with nothing more, or I get some kind of IOException.

(For example - the last one I tried is the blobDetection libraries, where all the samples are JAVA files, and I couldn't run any of them).

Many thanks

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