TUIO cursor + openframeworks

Question

I'm trying to make an app that does some blob tracking and sends all the data for Unity3D using TUIO cursor messages, just like CCV does. This is what i have regarding the messages ("media" is a button to switch between sending all blob's position/id's or sending the average):

  void testApp::blobOn( int x, int y, int id, int order )
    {
        cout << "blobOn() - id:" << id << " order:" << order << endl;

    ofxOscMessage m;
    m.setAddress("/tuio2/2Dcur");
    m.addStringArg("set");

    if(media == false){
        m.addIntArg(id);
        m.addFloatArg(newX);
        m.addFloatArg(newY);
        cout << "Posicao x: " << newX << endl;
        cout << "Posicao y: " << newY << endl;
    }
    else{
        m.addIntArg(0);
        m.addFloatArg(newMediaX);
        m.addFloatArg(newMediaY);
    }

    m.addFloatArg(0);
    m.addFloatArg(0);
    m.addFloatArg(0);
    m.addFloatArg(0);

    ofxOscMessage l;
    l.setAddress("/tuio/2Dcur");
    l.addStringArg("alive");

    if (blobList.size() > 0)
    {
        if(media == false){
            for (std::map<int,blob>::iterator it=blobList.begin(); it!=blobList.end(); ++it){
                l.addIntArg(it -> first);
                cout << "it first: " << it -> first << endl;
            }
    }else{
        l.addIntArg(0);
        }
    }

    sender.sendMessage(l);
    sender.sendMessage(m);
}


 //--------------------------------------------------------------



void testApp::blobMoved( int x, int y, int id, int order)
{
    cout << "blobMoved() - id:" << id << " order:" << order << endl;

    ofCvTrackedBlob blob_ = blobTracker.getById( id );        

    ofxOscMessage m;
    m.setAddress("/tuio/2Dcur");
    m.addStringArg("set");
    if(media == false){
        m.addIntArg(id);
        m.addFloatArg(newX);
        m.addFloatArg(newY);
        cout << "Posicao x: " << newX << endl;
        cout << "Posicao y: " << newY << endl;
    }
    else{
        m.addIntArg(0);
        m.addFloatArg(newMediaX);
        m.addFloatArg(newMediaY);
    }


    m.addFloatArg(0);
    m.addFloatArg(0);
    m.addFloatArg(0);
    m.addFloatArg(0);

    ofxOscMessage n;
    n.setAddress("/tuio/2Dcur");
    n.addStringArg("alive");

    if (blobList.size() > 0)
    {

        if(media == false){
            for (std::map<int,blob>::iterator it=blobList.begin(); it!=blobList.end(); ++it){
                n.addIntArg(it -> first);
            }
        }
        else {
            n.addIntArg(0);
        }
    }

    sender.sendMessage(n);
    sender.sendMessage(m);
}


//--------------------------------------------------------------


void testApp::blobOff( int x, int y, int id, int order )
{
    cout << "blobOff() - id:" << id << " order:" << order << endl;

    ofxOscMessage m;
    m.setAddress("/tuio/2Dcur");
    m.addStringArg("alive");

    blobList.erase(id);


    if (blobList.size() > 0)
    {
        if(media == false){
            for (std::map<int,blob>::iterator it=blobList.begin(); it!=blobList.end(); ++it){
                m.addIntArg(it -> first);
            }
        }
        else {
            m.addIntArg(0);
        }
    }

    sender.sendMessage(m);
}

My Unity app dont receive my messages/blobs, so i think they are badly formatted. Can someone tell me what may be wrong?

score 0 · Answer 1 · answered Feb 24 '15 at 14:09

The first thing to mention is

m.setAddress("/tuio2/2Dcur");

which should be

m.setAddress("/tuio/2Dcur");

The TUIO Standard (1.1 and 1.0) defines 2Dcur as follows:

/tuio/2Dcur set s x y X Y m

In your code you are setting s,x and y and then you add four times 0.0 (addFloatArg(0)) so you get in fact a message like this:

/tuio/2Dcur set s x y 0.0 0.0 0.0 0.0

which is one float too much. In OSC you usually subscribe to a message with full signature. That's why you get no message in your Unity application.

TUIO cursor + openframeworks

1 Answers1