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Old 05-15-2013, 03:29 PM
Ryan Ryan is offline
Join Date: Mar 2013
Posts: 5
Streaming data with onNetwork

I'm following the example shown here to get MatLab to stream data to Vizard:

def onNetwork(e):
print '** Received message from',e.sender
print #Prints: (5, 'hello', [1, 2, 3])

I know that I've successfully gotten some communication working, but when I run my MatLab program that sends the data, an error message appears in Vizard, instead of the data that I'm expecting. The error is:

Traceback (most recent call last):
File "file name", line 300, in onNetwork
AttributeError: 'RawNetworkEvent' object has no attribute 'data'

I am able to transfer data from another Vizard script (using the other example from the Networking_Basics web site), so it seems that the problem has to do with streaming from other applications.

It seems there possibly is no attribute when streaming information from other apps. Is there another way to address the information being sent other than

Thanks in advance.
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Old 05-15-2013, 04:07 PM
farshizzo farshizzo is offline
WorldViz Team Member
Join Date: Mar 2003
Posts: 2,849
When receiving data from a non-Vizard app, you can access the raw data using e.raw_data. The documentation mentions this. The raw_data attribute will be a string that contains the raw byte data from the UDP packet.
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Old 05-16-2013, 07:47 AM
Ryan Ryan is offline
Join Date: Mar 2013
Posts: 5
Thanks. Not sure how I missed that.
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data, onnetwork, stream

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