Processing Forum

LEAP Motion Controller Library / Experiments

[2 Replies]
- 22-Feb-2013 03:06 AM
- Forum: Share your Work
After we received the LEAP Motion Controller SDK some days ago, we enjoyed to investigate new interaction possibilities. Over the past weeks, we had the chance to develop different kind of applications for free fingertip interaction in mid air. To touch, to navigate and even form objects. We also developed a processing library that Marcel already mentioned here: https://forum.processing.org/topic/leapmotionp5-library-including-gesture-support, We used it to create some first test applications. It runs on processing 1.5 and 2.0 and is pretty easy to setup and handle.

filter() vs shader()

[1 Reply]
- 20-Nov-2012 09:45 AM
- Forum: General Discussion
might be a simple question but couldnt find a quick answer.
Where exactly is the difference between filter() and shader()

i found both in the shader examples and was able to use some glsl shaders with filter and some with shader, or both.

So whats the difference?

ScreenCapturer Processing library

[1 Reply]
- 09-Oct-2012 08:48 AM
- Forum: Share your Work
We developed a new simple but useful processing library that we would like to share with the community.

The ScreenCapturer library for Processing enables you to capture any part of your screen and include this capture into your Processing sketch as image or video.

https://vimeo.com/50598706

The fact that you can easily recapture and manipulate a captured image allows you to create interesting optical feedback and interface glitches.

https://vimeo.com/50518928

You can see the library and feedback loops in action as well as download the library here:

http://www.onformative.com/lab/screencapturer/

bezier smoothing

[5 Replies]
- 03-Oct-2012 05:20 AM
- Forum: General Discussion
Using curveVertex the curves i get are not always optimal. I am looking for an algorithm or lib that let me smooth a curve using bezier curves.

To describe it a bit, currently i generate some points (red points). the direct connection would be the dashed line, to get some curves i used curveVertex() (blue line) which still gets a bit edgy as the line although its curved still always touched the points. so what i am actually looking for is a smoothed line like the green one which i can adjust in its smoothness.

Any suggestions and ideas ?

detecting presence of mobile devices

[3 Replies]
- 14-Jul-2012 08:44 AM
- Forum: General Discussion
I am currently thinking about different approaches that could be easily used to detect the presence of different people based on their mobile devices. two things are important, they have to be distinguishable by an unique ID or device name, and the signal strength or distance of the device has to be trackable.

As it is just for prototyping i am actually looking for an easy to use solution that doesn't require any expensive hardware or setup.

I was thinking about Bluetooth and checked out the old bluetoothDesktop ( http://www.extrapixel.ch/processing/bluetoothDesktop/) library that doesn't work with processing 1.x anymore, but as it is based on http://code.google.com/p/bluecove/ and the src is available it shouldnt be a problem to make it work again. but it only detects devices but sadly doesn't tell you anything about the signal strength.

Second idea was to use wireless connections, for example iPhone could also create a hotspot itself that could be detected. Does anybody has experience with detecting mobile devices via WiFi?

So i am actually looking for some suggestions and thoughts, any idea is welcome.

Thx!
Cedric

English version of Generative Design book

[1 Reply]
- 25-Jun-2012 05:02 AM
- Forum: Events and Opportunities
Hi everybody, you might already have heard the good news. The "Generative Gestaltung" Book which was first released in German in 2009, is finally available in English! Published by Princeton Architectural Press it will be released 1st of October 2012. You can pre-order it for a special price on amazon.com.

We also uploaded all the code examples to openprocessing.org

Tutorial : how to use Google Analytics with processing

[1 Reply]
- 15-Jun-2012 05:31 AM
- Forum: Share your Work
We wrote another little tutorial explaining how to use Google Analytics data with processing. You find the tutorial and some examples on our website : http://www.onformative.com/lab/using-google-analytics-with-processing/

Google Weather library

[9 Replies]
- 13-Apr-2012 03:00 AM
- Forum: Library and Tool Development
While working on another project we needed to include weather information into Processing. The sketch that is running for weeks or even months has to change according to the local weather. Since there was no library for that purpose yet, we decided to write one ourselves and release it. Feedback is always welcome!

More information and download here :
http://www.onformative.com/lab/google-weather-library-for-processing/

unnamed soundsculpture

[14 Replies]
- 28-Mar-2012 02:29 AM
- Forum: Share your Work
Thought I tell you about our latest project we have been working on. "unnamed soundsculpture" is a 3d motion piece visualizing sound by the movement of the body. We asked a dancer to visualize a musical piece (Kreukeltape by Machinenfabriek) as closely as possible by movements of her body. She was recorded by three depth cameras (Kinect) using Processing, in which the intersection of the images was later put together to a three-dimensional volume (3d point cloud) in 3D Studio Max, so we were able to use the collected data throughout the further process, render it, add 3d camera movement also controlled by the audio etc.

You definitely shouldnt miss the making of documentation, showing the recording sessions as well as some more visual tests we did.

project documentation :
http://www.onformative.com/work/unnamed-soundsculpture/

Quarks Shape3d - BezTubeRadius

[7 Replies]
- 10-Jan-2012 03:25 PM
- Forum: Contributed Library Questions
Just a quick question as i didnt find any answers in the javadoc and sourcecode of the lib. Did the BezTubeRadius class changed in any way? Running the examples that come with shape3d and that are on the website I get the error message that a class called BezTubeRadius can not be found. Did I miss something?

Generative Artwork for Montblanc

[2 Replies]
- 03-Nov-2011 05:17 PM
- Forum: Share your Work
Just want to show one of our latest projects we recently finished. a new product presentation for the world wide relaunch of the Montblanc website was recently developed. For each product line a generative artist was invited to develop a flexible and unique artwork, which provides the masterpieces with an appropriate presentation stage. In addition to other artists, such as Marius Watz and Anthony Mattox, who are developing artworks for the brand’s sunglass and perfume lines, we were invited to develop their interpretation of an artwork for the product category watches.

The artwork consists of two elements – delicate linear structures and amorphous bodies – which visualize the characteristics of Montblanc watches: the highest precision of the movement and the high quality of the materials.

The tool was created using processing and all animations are exported without the need of post production. The team made use of a wide range of great processing libraries like toxiclibs for the fluid and GLGraphics to make shading possible, as well as Lee Byrons meshLib and the Ani Tweaning Library by Benedikt Groß for the mesh and its animation. Not to forget ControlP5 and ProScene for camera and control.

Please find more information, Video and Flickr sets on the project page :
http://www.onformative.com/work/montblanc-artworks/

Traer Physic Window

[2 Replies]
- 05-Sep-2011 05:56 AM
- Forum: Share your Work
Nothing special but something that i thought might be useful for some of you.
I made a little adaption to the first traer physic example sketch. http://murderandcreate.com/physics/

move the pendulum by moving the sketch window itself .

Have fun.
1. import traer.physics.*;
  ParticleSystem physics;
  
  Particle p;
  Particle anchor;
  Spring s;
  int mX;
  int mY;
  int pX;
  int pY;
  float velX;
  float velY;
  
  void setup()
  {
  size( 400, 400 );
  smooth();
  fill( 0 );
  ellipseMode( CENTER );
  background(255);
  physics = new ParticleSystem( 0, 0.05 );
  
  p = physics.makeParticle( 1.0, width/2, height/2, 0 );
  anchor = physics.makeParticle( 1.0, width/2, height/2, 0 );
  anchor.makeFixed();
  s = physics.makeSpring( p, anchor, 0.01, 0.051, 0 );
  mX = 0;
  pX = 0;
  mY = 0;
  pY = 0;
  }
  
  void draw(){
  //
     fill(255,30);
     rect(0,0,width,height);
  
  physics.tick();
  
  mX = frame.getLocation().x;
  mY = frame.getLocation().y;
  
  velX = (mX-pX)/15.0;
  velY = (mY-pY)/15.0;
  
  p.velocity().add( -velX,-velY,0 );
  
  println(velX);
  
  fill(0,210);
  noStroke();
  
  line( p.position().x(), p.position().y(), anchor.position().x(), anchor.position().y() );
  ellipse( anchor.position().x(), anchor.position().y(), 5, 5 );
  ellipse( p.position().x(), p.position().y(), 10, 10 );
  
  pX = mX;
  pY = mY;
  }

Toxiclibs not working using processing 1.5 Windows7 64bit

[8 Replies]
- 26-May-2011 05:05 AM
- Forum: Contributed Library Questions
Since i updated to the latest processing version Toxiclibs is not working anymore on my computer.
Cant really tell what exactly the problem is. We tested it on different machines and it seems to work with 1.5.
The machine it is not working on is a Windows7 64bit using processing 1.5.
When i use processing 1.2 instead everything works fine.

I tested several toxi examples resulting in the following error messages.
Any idea ?

BoxFLuid demo results in :
The type tpxo.geom.mesh.Mesh3D cannot be resolved. It is indirectly referenced from required .class files

ColorTheory demo :
NoSuchMethodError: You may be using a library that is incompatible with this version of Processing

GrayScottToneMap:
ClassNotFoundException: toxi.geom.ReadonlyVec3D

SmoothDoodle:
Cannot find a class called Spline2D...

and so one...

Different sketch file handling since 1.5 when using "save as"

[2 Replies]
- 25-May-2011 05:11 AM
- Forum: General Discussion
This is probably not a bug and was done on purpose but i think it is really annoying.
Since version 1.5 processing copies all the files in the sketch folder to the new folder when using "save as".
Until then it only copied the files in the data folder. That was quite useful as you need them to run the sketch.
But all the files in the Sketch folder are mostly not needed like saved images and exported movie files.
This new behavior results in a lot of duplicated files and the need to remove them when saving...

Could this be turned off somehow ?

Different Scrolling Behaviour

[1 Reply]
- 16-May-2011 05:00 PM
- Forum: General Discussion
Just had the feeling that something was different since the update to 1.5 and it took me a while to realize that the scroll wheel behavior changed. the scrolling is much slower now than it was before. Its nothing i can change in my mouse settings. So i am not sure if anybody is aware of that problem or if it was changed by intension.
Just wanted to mention it.

As you can see this is how the scrolling differs comparing version 1.5 on the right to older versions when scrolling one step on my mouse wheel. It slowed down that much, that i stopped using the mouse wheel and started using the scrollbar again which is kind of annoying.

Prevent tabs from collapsing

[0 Replies]

20-Apr-2011 04:46 PM
Forum: General Discussion

Since the 0193 they introduced :

+ For projects with too many tabs, condense the ones that are used less.

Is there a way to turn that off ? i took a look in the preference.txt...

"editor.tabs.expand=false" sounded good but didnt change anything...

processing berlin - monthly meeting

[1 Reply]
- 22-Feb-2011 05:56 AM
- Forum: Events and Opportunities
This is for everybody who was asking for some Berlin based processing programmers and artists recently.
Some of us finally met and decided to start a monthly meeting here in berlin. This is not only about processing but for anybody who is interested in creative coding, generative design or programming not matter if you are using processing, openFrameworks or any other programming laguage. Feel free to join us, talk about your projects, and just get to know each other a bit better and finally meet in person.

More information can be found on http://www.processingberlin.com
or follow us on twitter @p5berlin

Processing berlin will take place every second Thursday of the month.
The fist date is:

Thursday, March 10th, 2011
8:00pm

You can also use this thread to discuss ideas and leave comments about processing berlin.

Delaunay in 3d Space

[1 Reply]
- 18-Feb-2011 04:24 AM
- Forum: Programming Questions
Does anybody of you have some good resources or examples on how to create Delaunay Triangulation in 3d space?

Creating Contour Maps

[24 Replies]
- 17-Feb-2011 06:09 AM
- Forum: Share your Work
I made a little tutorial on how to create contour maps using a blob detection library and processing.
Have fun!

http://www.onformative.com/lab/creating-contour-maps/

different pmouse/pmotion behavior.

[0 Replies]
- 15-Feb-2011 01:26 AM
- Forum: Android Processing
Just a quick question. Not sure if this is a bug or if i just missed some changes in the syntax.
While writing a tutorial I realized there is a different update behavior of pmouse/pmotion on android and on processing.

running this code on processing and the emulator shows the difference
1. void setup() {
  size(300,300); // remove size on android sketch
  background(255);
  }
  
  void draw(){}
  
  void mouseDragged() {
  strokeWeight(2);
  stroke(0);
  line(mouseX,mouseY,pmouseX,pmouseY);
  }
on the android device the lines connect even when starting to drag at a different point. to be honest that seems to be more logical to me, but the behavior on processing was more useful for example when building such a quick drawing app.

special character in controlp5 Textfields

[0 Replies]
- 28-Jan-2011 07:34 AM
- Forum: Contributed Library Questions
just curious.
Is there a reason why i cant use all characters in a textfield for example @ is not working which is kinda important.
as well as § or [ ] } { etc...

Android Icon Size question

[1 Reply]

27-Jan-2011 05:26 AM
Forum: Android Processing

Just a quick question.
In the Android Wiki it says :

icon-32.png, icon-48.png, and icon-72.png. These should be 32x32, 48x48, and 72x72 pixel icons.

But in the Android GUI Design Guidelines it says :

36 x 36 px,

48 x 48 px,

72 x 72 px

http://developer.android.com/guide/practices/ui_guidelines/icon_design.html.

Just wanted to make sure that 32 is actually correct for processing icons and its not a mistake in the wiki...

vlw font creation

[4 Replies]
- 21-Jan-2011 01:38 AM
- Forum: Integration and Hardware
I was curious and was trying to find out a bit more about vlw files and how they are actually created. what information is stored beside the bitmap data, how is it stored etc... i looked through the processing code, but couldnt find any information about it. Would be nice if somebody could point me to some resources to find out more.

Thx

GLGraphics - can use PGraphics only once with GLTextureWindow

[1 Reply]
- 10-Jan-2011 02:22 PM
- Forum: Contributed Library Questions
I am still working with the same code and encountered a little problem when using PGraphics.
I want to draw the PGraphics in the GLTextureWindow as well as in the main Window, but it looks like i can use it only once. it works in both, but as soon as i call image(pg,0,0) twice, one of them doesnt update.
Any ideas why?

oh and another question that might help me in another case. is it possible to get the mousecoordinates of the TextureWindow? Couldnt find anything in the reference.
1. import processing.opengl.*;
2. import codeanticode.glgraphics.*;
3. PGraphics pg;
4. GLGraphicsOffScreen winGraphics; // the graphics object for the second window...
5. GLTextureWindow win;
6. void setup() {
7. size(600, 600, GLConstants.GLGRAPHICS);
8. pg = createGraphics(200, 180, P3D);
9. win = new GLTextureWindow( this, 100, 100, 400, 400 ); // 400x400 big at location 100,100
10. winGraphics = new GLGraphicsOffScreen( this, 400, 400 );
11. win.setTexture( winGraphics.getTexture() );
12. }
13. void draw() {
14. pg.beginDraw();
15. pg.background(102);
16. pg.stroke(255);
17. pg.line(40, 40, mouseX, mouseY);
18. pg.endDraw();
19. //image(pg, 10, 10);
20. winGraphics.beginDraw();
21. winGraphics.image(pg, 10, 10);
22. winGraphics.endDraw();
23. }

GLGraphics - GLException Surface already locked

[14 Replies]
- 05-Jan-2011 04:15 AM
- Forum: Contributed Library Questions
Now as the GLGraphics library works on my pc after installing the latest NVidia beta drivers, i started to integrate it into my sketch. But its not working due to the following error message. "GLException Surface already locked"
I tested a lot but couldnt figure out what is causing the problems.
I am using minim, toxi.math and the controlP5 library. I am also creating different PGraphics, but like i said, checked and removed a lot and couldnt figure out why it is not working. any ideas ?

Processing Console Error Message :

Exception in thread "AWT-EventQueue-0" javax.media.opengl.GLException: wglShareLists(0x20000, 0x20001) failed: error code 0
    at com.sun.opengl.impl.windows.WindowsGLContext.create(WindowsGLContext.java:136)
    at com.sun.opengl.impl.windows.WindowsGLContext.makeCurrentImpl(WindowsGLContext.java:150)
    at com.sun.opengl.impl.windows.WindowsOnscreenGLContext.makeCurrentImpl(WindowsOnscreenGLContext.java:65)
    at com.sun.opengl.impl.GLContextImpl.makeCurrent(GLContextImpl.java:127)
    at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:182)
    at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:258)
    at javax.media.opengl.GLCanvas.display(GLCanvas.java:130)
    at javax.media.opengl.GLCanvas.paint(GLCanvas.java:142)
    at sun.awt.RepaintArea.paintComponent(RepaintArea.java:248)
    at sun.awt.RepaintArea.paint(RepaintArea.java:224)
    at sun.awt.windows.WComponentPeer.handleEvent(WComponentPeer.java:310)
    at java.awt.Component.dispatchEventImpl(Component.java:4706)
    at java.awt.Component.dispatchEvent(Component.java:4460)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Exception in thread "AWT-EventQueue-0" javax.media.opengl.GLException: Surface already locked
    at com.sun.opengl.impl.windows.WindowsOnscreenGLDrawable.lockSurface(WindowsOnscreenGLDrawable.java:156)
    at com.sun.opengl.impl.windows.WindowsOnscreenGLContext.makeCurrentImpl(WindowsOnscreenGLContext.java:57)
    at com.sun.opengl.impl.GLContextImpl.makeCurrent(GLContextImpl.java:127)
    at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:182)
    at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:258)
    at javax.media.opengl.GLCanvas.display(GLCanvas.java:130)
    at javax.media.opengl.GLCanvas.paint(GLCanvas.java:142)
    at sun.awt.RepaintArea.paintComponent(RepaintArea.java:248)
    at sun.awt.RepaintArea.paint(RepaintArea.java:224)
    at sun.awt.windows.WComponentPeer.handleEvent(WComponentPeer.java:310)
    at java.awt.Component.dispatchEventImpl(Component.java:4706)
    at java.awt.Component.dispatchEvent(Component.java:4460)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

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