Hi, i know this is maybe more of a Processing problem than a Pd one, but I figured i would try posting on here too -
I really need my Processing color detection patch to hook up to Pd via Osc. I already have the P5 library in my Processing folder.
I have my Pd patch ready to go - I think all I need is to enter some code into Processing and frankly, I do not know where to begin with this stuff.

if anyone could help or point me in the right direction that would be swell. i have already looked for help all day over the net and on Processing.org. Worth a shot though...
thanks!

H

look here and copy/paste/modify relevant bits:

http://www.sojamo.de/libraries/oscP5/examples/oscP5message/oscP5message.pde

i.e.

make sure you have this in the top of the page (before void setup):

import oscP5.*;
import netP5.*;

OscP5 oscP5;
NetAddress myRemoteLocation;

Then copy over the void setup() bit, but modify it to use the relevant IP address and port number (you can also make this a variable that you can decide later in the program if you want) - but for now just hardcode the IP in directly.

Then in the void draw() bit get the rest of the code in.

here it gets tricky, because you will want to use variables so that each frame (each loop of void draw) an individual OSC message is sent for every colour you are tracking.

so...

OscMessage myMessage = new OscMessage("/test"); // defines the namespace of the message (where it will be sent to in PD once you start using [OSCroute]

I'm pretty sure you want to have this:

OscMessage myMessage = new OscMessage("/"+nameOfColour); where name of colour will be the variable that identifies each instance of colour. then simply

myMessage.add(colourLocation); // that's obvious!

and send it!

oscP5.send(myMessage, myRemoteLocation);

and done. you don't need the next bit in the example code.

hey Arif, thanks for the reply. I have input what I think is right. Still no joy. Now it is disagreeing with CoordsCalc. I have included the code. I already had some of the things from the example. I think I just need to add integers but I dont know how or what to put.

import processing.video.*;
import oscP5.*;
import netP5.*;

OscP5 oscP5;
NetAddress myRemoteLocation;

Capture video;

int numPixels; // number of pixels in the video
int rectDivide = 4; // the stage width/height divided by this number is the video width/height
int vidW; // video width
int vidH; // video height
int[][] colouredPixels; // the different colour references for each pixel
int[][] colourCompareData; // captured r, g and b colours
int currR; //
int currG; //
int currB; //
int[][] squareCoords; // x, y, w + h of the coloured areas
color[] colours; // captured colours
int colourRange = 25; // colour threshold
int[][] centrePoints; // centres of the coloured squares
color[] pixelColours;
boolean isShowPixels = false; // determines whether the square and coloured pixels are displayed
int colourMax = 2; // max amount of colours - also adjust the amount of colours added to pixelColours in setup()
int coloursAssigned = 0; // amount of cours currently assigned
CoordsCalc coordsCalc;

void setup()
{
size(640, 480);
vidW = width / rectDivide;
vidH = height / rectDivide;
video = new Capture(this, vidW, vidH, 30);
noStroke();
numPixels = vidW * vidH;
colouredPixels = new int[vidH][vidW];
colourCompareData = new int[colourMax][3];
squareCoords = new int[colourMax][4];
colours = new color[colourMax];
centrePoints = new int[colourMax][2];
color c1 = color(0, 255, 0);
color c2 = color(255, 0, 0);
pixelColours = new color[colourMax];
pixelColours[0] = color(0, 255, 0);
pixelColours[1] = color(255, 0, 0);
coordsCalc = new CoordsCalc();

oscP5 = new OscP5(this, 12000);
myRemoteLocation = new NetAddress("127.0.0.1", 12000);
}

void captureEvent(Capture video)
{
video.read();
}

void draw()
{
noStroke();
fill(255, 255, 255);
rect(0, 0, width, height);
drawVideo();
coordsCalc.update();
for (int i = 0; i < coloursAssigned; i++)
{
if (isShowPixels) drawSquare(i);
}
background(0);
}

void mousePressed() {
/* in the following different ways of creating osc messages are shown by example */
OscMessage myMessage = new OscMessage("/test");

myMessage.add(colourLocation); /* add an int to the osc message */
myMessage.add(colourLocation);

/* send the message */
oscP5.send(myMessage, myRemoteLocation);
}

/* incoming osc message are forwarded to the oscEvent method. */
void oscEvent(OscMessage theOscMessage) {
/* print the address pattern and the typetag of the received OscMessage */
print("### received an osc message.");
print(" addrpattern: "+theOscMessage.addrPattern());
println(" typetag: "+theOscMessage.typetag());
}

}

void drawVideo()
{
for (int i = 0; i < coloursAssigned; i++)
{
fill(colours_);
rect(i * 10, vidH, 10, 10);
}
image(video, 0, 0);
noFill();
stroke(255, 0, 0);
strokeWeight(2);
rect(vidW - 4, vidH - 4, 4, 4);
}

void drawSquare(int
{
int sqX = squareCoords_[0];
int sqY = squareCoords_[1];
int sqW = squareCoords_[2];
int sqH = squareCoords_[3];
noFill();
stroke(0, 0, 255);
strokeWeight(3);
rect(sqX, sqY, sqW, sqH);

//stroke(0, 0, 255);
//strokeWeight(4);
rect(sqX * rectDivide, sqY * rectDivide, sqW * rectDivide, sqH * rectDivide);
line(sqX * rectDivide, sqY * rectDivide, ((sqX * rectDivide) + (sqW * rectDivide)), ((sqY * rectDivide) + (sqH * rectDivide)));
line(((sqX * rectDivide) + (sqW * rectDivide)), sqY * rectDivide, sqX * rectDivide, (sqY * rectDivide + sqH * rectDivide));
}

void keyPressed()
{
println("key pressed = " + key);
color currPixColor = video.pixels[numPixels - (vidW * 2) - 3];
int pixR = (currPixColor >> 16) & 0xFF;
int pixG = (currPixColor >> & 0xFF;
int pixB = currPixColor & 0xFF;
if (key == 'p')
{
isShowPixels = !isShowPixels;
}
if (key == '1')
{
coloursAssigned = 1;
colourCompareData[0][0] = pixR;
colourCompareData[0][1] = pixG;
colourCompareData[0][2] = pixB;
colours[0] = color(pixR, pixG, pixB);
}
if (colourMax < 2 || coloursAssigned < 1) return;
if (key == '2')
{
coloursAssigned = 2;
colourCompareData[1][0] = pixR;
colourCompareData[1][1] = pixG;
colourCompareData[1][2] = pixB;
colours[1] = color(pixR, pixG, pixB);
}
if (key == '0')
{
coloursAssigned = 0;
}
}_____

well firstly you don't want to put the OSC method within the mousePressed method, because this way it'll only send it when you press the mouse (and it'll send it twice, because of what you have coded)

I'll need to see the code for CoordsCalc if I'm to know what to put in.

tell you what, email me the code without any of the OSC modifications and I'll put it in there for you. (a lot easier than trying to explain everything here)

my email arif d 86 [at-symbol] gmail dot com