sending data to a different thread

Igor86

Hi all,

I am at the beginning of my learning curve, and trying to understand how to solve a problem i have.

I'm having a main class. in this main class I have a instance of another class that runs on a different QThread.
This code emits a signal that I can access from my main class (above) like this:

   def getImage(self):        
            self.thread = QThread()        
            self.worker = Worker()               
            self.worker.imagesignal.connect(self.setImage)

   def setImage(self, img, imgOriginal, classname = str, score = float):
            ... some more code here...

class Worker(QObject):
    finished = pyqtSignal()
    imagesignal = pyqtSignal(numpy.ndarray, numpy.ndarray, str, float)

    def run(self):
        h = Harvester()
        ia = yoloRun.open_stream(h)
        model = yoloRun.loadNetwork()
        while 1:      
            im0, imgOr, classname, score = yoloRun.run(imageAcq=ia, model=model)
            self.imagesignal.emit(im0, imgOr, classname, score)
        self.finished.emit()

now, what I would need to do, is to send a trigger back (simple bool variable) to the worker thread. (i want to add after the while1: an event.

I tried to declare the signal in my main class like this:

    startCameraSignal = pyqtSignal(bool)    
    self.startCameraSignal.emit(True)

but I don't know how to detect the signal from the instance of worker...

Is this even the correct way of doing it?

Thank you

Best regards

Igor

SGaist

Hi,

It's usually done through a slot.

One note: do not use while 1. Doing so you do not have any clean way to stop your loop.