if (note.getChannel == 10){

      dataKick = note.getPitch();

}

and 

Also the length of the synth is kinda important, especially when you use apreggiators. But i can't seem to find the length of a note? Only the velocity, wich is always 120 with a KORG Electribe. Or is it a noteOff singal that is begin send ?

Here's my code:

2. import rwmidi.*;
3. 
   
4. MidiInput input;
5. MidiOutput output;
6. 
   
7. void setup() {
8.   input = RWMidi.getInputDevices()[0].createInput(this);
9.   output = RWMidi.getOutputDevices()[0].createOutput();
10. }
11. 
    
12. void noteOnReceived(Note note) {
13.   println("note on " + note.getPitch());
14. }
15. 
    
16. void sysexReceived(rwmidi.SysexMessage msg) {
17.   println("sysex " + msg);
18. }
19. 
    
20. void mousePressed() {
21.   int ret =    output.sendNoteOn(0, 3, 3);
22.   ret = output.sendSysex(new byte[] {(byte)0xF0, 1, 2, 3, 4, (byte)0xF7});
23. }
24. 
    
25. void draw() {
26. }

I'm making a drawing sketch but i want to draw some guidelines also, but they can't stay on the screen forever. Is there a way to program my sketch so that my actual drawing stays and the guidelines move around and update.

I'm generating my drawing with line() and i use 2 variables 'p' and 'pOld'. 'pOld' is the previous location of 'p'.

Cheers

How should I do this?

I'm trying to readh the RGB from where my mouse is on the screen and this is my code so far.

I know that initializing a class in Ddraw() can't be good but its the only way im not getting errors.

My println(col) is saying "java.awt.Color[r=13,g=12,b=13]"

But dont know how to convert it to an int or something to use in processing?

import java.awt.AWTException;

Hi I'm trying to use data from an image to manipulate other variables but i don't want my image show in my sketch. 

I'm thinking of just putting an rect over it, but there may be an other, better and more effecient way?

Cheers

I heard of Syphon but as a Windows user i can't use this technology.

How do you seamlesly integrate multiple sketches in a performance ?

I've made a flocking sketch in processing, where particles fly around in space.

To make it more interesting I want to draw fading lines out of each particle, but can't seem to figure it out.

The particles looks like this, its a function from the class Particle:

void display() {
    stroke(255,0,0);
    noFill();
    ellipse(loc.x, loc.y, 5, 5);
    }
}

Now i want it to draw a line where the ellipse has been, how do i do this?

Is there another way besides making a previousVariable, like pLoc.x and pLoc.y and than with a boolean, that checks if its changed position?

this function is from a script i wrote based of of jose sanchez his tutorials. its a flocking script.

this function is drawing lines between them when there within a distance of 20 pixels. but it also calculates distance between particle number 1 and particle number 1, wich is unnecessary.

and also if it already calculated the dist between particle number 1 and number 2, it does it again by calculating the dist between particle number 2 and number 1.

void lineBetween(){

if i would do something like 

if(loc.x != other.loc.x){

line(loc.x,loc.y,other.loc.x,other.loc.y);

}

would this help ?

I'm using the Toxiclibs library, started from the example of additive waves.

I've underlined and bolded where the problem is.

I want to change the frequency of the square wave by moving the mouse in the X direction.

I think it has something to do with the fact that I'm making the waves in the void setup so that it only occurs one time, but i don't know how to fix it :/

Help would be MUCH appreciated! :)

CODE:

AbstractWave waveX,waveY,waveV,waveW;

void setup() {

....
waveX=createSquareWave();
waveY=createConstantWave();
waveV=createSineWave();
waveW=createConstantWave();
.....

}

void draw() {

//D2 = mouseX;
background(0);
pushMatrix();
translate(0, height*0.5, 0);
rotateX(PI/2);
rotateZ(0);
// scale(0.5);

// Square golf
float prevY = waveY.update();
float colPrevY = 0;
waveY.push();
for(int y = 0; y < PIM; y += STEP2) {
float valueY = waveY.update();
float colY = valueY * 128 + 128;
waveX.push();
beginShape(TRIANGLE_STRIP);
for(int x = BEGIN; x < BEGIN+DIM; x += STEP1) {
float valueX = waveX.update();
float colX = valueX * 128 + 128;
fill(255);
vertex(x - D2, y - STEP2 - D2, (valueX + prevY) * AMP);
fill(255);
vertex(x - D2, y - D2, (valueX + valueY) * AMP);
}
endShape();
waveX.pop();
prevY = valueY;
colPrevY = colY;
}
waveY.pop();
waveX.update();
waveY.update();

}

AbstractWave createSquareWave() {
AbstractWave w=null;
AbstractWave fmod=new ConstantWave(0);
  w = new FMSquareWave(0, mouseX, 1, 0, fmod);
return w;
}


AbstractWave createConstantWave() {
AbstractWave w=null;
w = new ConstantWave(0);
return w;
}

Is there a way to control and manipulate videos of Youtube?

I'm looking at slowing down or speeding up, changing colors, effects on sound, stuff like that.

I don't know if this is possible but does someone might have an idea, or a direction I should look at? Probably have to use Youtube API.

When I click a button I want the sound to start in ableton and my parameters to change, but what processing does is constantly send noteOn's to ableton, what means that the clip constantly starts over, giving it some sort of noise.

What I want is that it sends a noteOn when I click, I keep my finger pressed on the mouse, the sound stays, and when I move the mouse the knob changes. when I release, the sound must stop.

import rwmidi.*;

}

Hi i'm trying to make a strobe effect where I can change the rate of the strobe.

If i use the variable mouseX as float s(= speed of stroke's color) it wont work anymore, and i dont get why ...

anyone got an idea ?

float c = 0;
float s = 30;

void setup(){
size(400,400);
smooth();
}


void draw(){
strokeWeight(4);
stroke(c);
fill(0);
background(0);
ellipse(width/2,height/2,50,50);
c = c + s;
if (c > 255 || c < 0){
s = s * -1;
}
}

I've made a sketch where 2 cirkels can intersect, and when they intersect, the part thats intersected become 2 small lines.

Those small lines render really perfect on an iMac I3. but when I try it on my VAIO Laptop(2 years older) it renders like crap.

Is this common for Windows computers?

Hi,

I've been looking for a very long time for this and i'm stuck too long to not ask a stupid question :)

I'm working with a Kinect and when my hand is 200 units in front of my torso I want it to draw a ellipse, but when I go back with my hand, I want the ellipse to still be there so that I can make a new ellipse when I do it again.

Kinda like when you click, and a ellipse pops up at that location, but when i click again another ellipse appears.

As you can see in the code, when I return my hand to my torso, the ellipse disappears.

void draw() {
.....
rechthoek();

....
}

void rechthoek(){
noStroke();
float relz = tz - lhz; // relative distance in z direction from left hand to torso
if(relz > 300){
ellipseMode(CORNERS);
fill(r,0,0);
ellipse(lhx,lhy,rhx,rhy);
r = r - 5;
if(r == 0){
r = 0;
}
}
}

Hi there,

I'm working on a FFT Audio Analyzer via Internal Routing that can send OSC Data.

So I'm getting data from say Windows Media Player to my processing in three bands, High, Mid and Low.

What I want to know is if there is a way to smooth these data inputs. Is there a way to dampen the data so that it doesnt immediatley jump to high peaks?

I used alot of search terms like easing, damping, smoothin, etc... but couldnt find anything.

VVVV has a really simple solution that is called damping but i don't think processing has that.

Someone got a hint in wich direction i need to look for?

Hi there,

I'm working on an spectral analyser, and I want to use the sound of my computer via Internal Routing (Virtual Audio Cable). Now i don't know how to specify that I DONT want to use my Mic In but I want to use my Virtual Cable 1. I'm thinking it has to do  something with getLineIn, but dont know the correct syntax.

Here is my code:

import ddf.minim.*;
import ddf.minim.analysis.*;

Minim minim;
AudioInput in;
FFT fft;

int w;

int q = 2;

void setup() {
size(600, 300);
minim = new Minim(this);
in = minim.getLineIn(Minim.STEREO, 512);
fft = new FFT(in.bufferSize(), in.sampleRate());
fft.logAverages(60, q);
stroke(255);
w = width/fft.avgSize();
strokeWeight(w-4);
strokeCap(SQUARE);
}

void draw() {
background(0);
fft.forward(in.mix);

for(int j = 0*q; j < 2*q; j++){
for(int k = 2*q; k < 4*q; k++){
for(int l = 4*q; l < 9*q; l++){
stroke(0,255,0);
line((l*w), height, (l*w),height - fft.getAvg(l) * 4);
line(0, 20, fft.getAvg(l) * 11, 20);
}
stroke(0,0,255);
line((k*w), height, (k*w),height - fft.getAvg(k) * 4);
line(0, 80, fft.getAvg(k) * 11, 80);
}
stroke(255,0,0);
line((j*w), height, (j*w),height - fft.getAvg(j) * 4);
line(0, 120, fft.getAvg(j) * 11, 120);
}
}

So for example i have 8 ellipses in my sketch, and i have 8 knobs on my midi (NANO Kontrol 2)

How can i move them seperately with the 8 knobs?

Like Knob 1 moves Ellipse 1, Knob 2 moves Ellipse 2, and so on ...

Now every knob or slider on my Midi Controller does the same.

I use the ProMIDI library

i can show you me sketch if you ask me, but its kinda big.