ALBarcodeReader API

NAOqi Vision - Overview | API | Tutorial

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Namespace : AL

#include <alproxies/albarcodereaderproxy.h>

Method list

class ALBarcodeReaderProxy

• As any module, this module inherits methods from ALModule API.
• It also inherits methods from ALExtractor API and ALVisionExtractor API.

Events list

• BarcodeReader/BarcodeDetected()

Events

Event: "BarcodeReader/BarcodeDetected"

callback(std::string eventName, AL::ALValue value, std::string subscriberIdentifier)

Raised each time one or several barcodes are decyphered. The associated data is structured as follows:

BarcodeReader/BarcodeDetected = [
  CodeData[N]
]

CodeData contains the data itself in a string representation and the position of the bar code in the image:

CodeData = [
  Data,
  Position
]

Where Position contains the coordinates of all four corners in the image (see Overview for an explanation about corner ordering).

Position = [
  [x0, y0],
  [x1, y1],
  [x2, y2],
  [x3, y3]
]