Processing Forum

store tweets offline and export csv

[4 Replies]
- 21-Jan-2012 04:13 AM
- Forum: General Discussion
Hi all!
I am looking for a way to look for specific tweets from a limited geographical region, store them in a database and export a .csv or .xml file...to perform some basic data analysis and visualize stuff with Processing... anybody who can help?

Thank you very much,

Paolo

mixing multiple masked videos using GSVideo and GLGraphics

[3 Replies]
- 13-Sep-2011 09:33 AM
- Forum: Contributed Library Questions
Hi everybody

I am using GSVideo and GLGraphics libraries to make a dynamic collage of videos that are masked using textures that are generated in real time...
I tried both on Ubuntu and Win 7 32 bit and I am using x264 encoded videos (576p).
but i don't understand why this piece of code won't work:

Copy co

import processing.opengl.*;

import codeanticode.glgraphics.*;

import codeanticode.gsvideo.*;

//number of video clips

int nclips = 3;

GSMovie [] clips = new GSMovie[nclips];

GLTexture [] textures = new GLTexture [nclips];

//GLTexture [] maskedTextures = new GLTexture [nclips];

GLGraphicsOffScreen [] masks = new GLGraphicsOffScreen [nclips];

//i'll use this to draw the mask

int [] fibonacci = {

1, 1, 2, 3, 5, 8, 13, 21, 34, 55

};

int x, y, l;

int rf, rx;

int module=10;

int f = 0;

GSMovieMaker mm;

void setup() {

size(1024, 576, GLConstants.GLGRAPHICS);

background(0);

// Use texture tex as the destination for the movie pixels.

for (int i =0; i<nclips; i++) {

textures[i] = new GLTexture(this);

clips[i] = new GSMovie(this, i+".mp4");

clips[i].setPixelDest(textures[i]);

clips[i].loop();

masks[i] = new GLGraphicsOffScreen(this, width, height);

// maskedTextures[i] = new GLTexture(this);

masks[i].beginDraw();

masks[i].background(0);

masks[i].endDraw();

}

mm = new GSMovieMaker(this, width, height, "field_video.ogg", GSMovieMaker.THEORA, GSMovieMaker.BEST, 10);

mm.setQueueSize(50, 10);

mm.start();

}

void movieEvent(GSMovie movie) {

clips[f].read();

}

void draw() {

// If there is a new frame available from the movie, the

// putPixelsIntoTexture() function will copy it to the

// video card and will return true.

//System.gc();

masks[f].beginDraw();

masks[f].noStroke();

rf = floor(random(0, fibonacci.length));

l = module*fibonacci[rf];

rx = floor(random(0, ((width)/5)));

x=rx*module;

y=0;

masks[f].fill(255, 255/(fibonacci[rf]*0.25));

masks[f].rect(x, y, l, height);

rf = floor(random(0, fibonacci.length));

l = module*fibonacci[rf];

rx = floor(random(0, ((width)/5)));

x=rx*module;

y=0;

masks[f].fill(0);

masks[f].rect(x, y, l, height);

masks[f].endDraw();

if (textures[f].putPixelsIntoTexture()) {

textures[f].updateTexture(); // copy texture to pixels

textures[f].mask(masks[f]);

textures[f].loadTexture(); // copy pixels to texture

image(textures[f], 0, 0);

}

loadPixels();

mm.addFrame(pixels);

println(frameCount);

if (frameCount == 5000) {

// Finish the movie

mm.finish();

// Quit running the sketch once the file is written

exit();

}

}

}

it gives me this error:

0:00:08.290474000 4532 7AD0DB90 ERROR ffvideoscale .:0:: no frame!

0:00:08.290474000 4532 7AD0DB90 ERROR ffvideoscale .:0:: get_buffer() failed (-1 0 0 00000000)

0:00:08.290474000 4532 7AD0DB90 ERROR ffvideoscale .:0:: decode_slice_header error

do you have any idea? maybe this is not the best way to mix videos dynamically?

thanks a lot

paolo

PGraphics and drawing commands

[4 Replies]
- 15-Jul-2011 12:03 PM
- Forum: Programming Questions
is there a way to use smooth() and noStroke() between beginDraw() and endDraw()?

or anybody has ideas on how to make this simple application of additive color synthesis look better?
1. PGraphics c1, c2, c3;
  
  void setup() {
  
  size(600, 600);
  smooth();
  noStroke();
  background(255);
  
  c1 = createGraphics(width, height, P2D);
  c2 = createGraphics(width, height, P2D);
  c3 = createGraphics(width, height, P2D);
  
  c1.beginDraw();
  smooth();
  noStroke();
  c1.fill(255, 0, 0);
  c1.ellipse (width/3, height/3, 2*width/3, 2*width/3);
  c1.endDraw();
  
  c2.beginDraw();
  smooth();
  noStroke();
  c2.fill(0, 255, 0);
  c2.ellipse (2*width/3, height/3, 2*width/3, 2*width/3);
  c2.endDraw();
  
  c3.beginDraw();
  smooth();
  noStroke();
  c3.fill(0, 0, 255);
  c3.ellipse (width/2, 2*height/3, 2*width/3, 2*width/3);
  c3.endDraw();
  
  image(c1, 0, 0);
  image(c2, 0, 0);
  image(c3, 0, 0);
  
  /*
  fill(255, 0, 0);
  ellipse (width/3, height/3, 2*width/3, 2*width/3);
  
  fill(0, 255, 0);
  ellipse (2*width/3, height/3, 2*width/3, 2*width/3);
  
  fill(0, 0, 255);
  ellipse (width/2, 2*height/3, 2*width/3, 2*width/3);
  */
  
  blend(c1, 0, 0, width, height, 0, 0, width, height, ADD);
  blend(c2, 0, 0, width, height, 0, 0, width, height, ADD);
  blend(c3, 0, 0, width, height, 0, 0, width, height, ADD);
  }

GSVideo and Ubuntu

[8 Replies]
- 16-May-2011 12:37 PM
- Forum: Contributed Library Questions
Hi everybody,

I am trying to render and save a movie in Processing and - since I would prefer to do it on Ubuntu - I am trying to use the GSVideo library...but i can't figure out why it doesn't work...

not even the DrawingMovie example is working.

i get these errors:

processing.app.debug.RunnerException: UnsatisfiedLinkError: Unable to load library 'glib-2.0': libglib-2.0.so: cannot open shared object file: No such file or directory

Exception in thread "Animation Thread" java.lang.UnsatisfiedLinkError: Unable to load library 'glib-2.0': libglib-2.0.so: cannot open shared object file: No such file or directory

do you have any ideas of what the resean(s) could be?

thank you very much

paolo

import locations from a kml file

[1 Reply]
- 28-Mar-2011 08:33 AM
- Forum: Programming Questions
hi everybody!
i need some help:

does anybody know how to import in a processing sketch hundreds of locations from a kml file?

can't find anything on the web...
thank you very much,
paolo

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