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mizutani_jun 10-11-2010 01:01 AM

Use saved text file data as replay sources problem
I got problem using my saved data text file data as replay sources.
I took data from patriot as euler data and keyboard as my position data,and save this all in difference text file.
From this data,i want to make replay but i got some errors about strings.

I previously using matlab as my main sources and no problem using strings to make calculations but seems i cant do same thins in vizard.
Below is my commands.


for line in openfile1:

print x - y

I try to make easy calculation like above and this errors written in input/output window.

Traceback (most recent call last):
File "", line 11, in ?
File "", line 217, in ?
print x - y
TypeError: unsupported operand type(s) for -: 'str' and 'str'

My question is how can i make calculation with this text data?
How can i use this data other than call it as strings?
I want to calculate the difference in every frame and use it as sources for my replay sources as below.

def replay(num):
while n<=162:

I dont want to make calculation in real time and i want to save in text data because want to use this data in future.
Is there some sources that i can read or explanations that i missed?
Really need help.

masaki 10-11-2010 09:16 AM


You need to convert your string data to int or float:


mizutani_jun 10-12-2010 12:51 AM

Thanks for the reply Masaki.
Yes it seems this is the function that i missed.
Thanks a lot.
Is there any sources or details i can read about calculation or related to this?
For now i searched just from this forum but it really great if someone can tell me the way to check all this command or function.
So i can study by myself and just asking when i not understand.


masaki 10-12-2010 09:17 AM

The Python scripting language is open source so there is a ton of resources online. Vizard 3.0 uses Python 2.4.
Python and Vizard help docs are also included with Vizard, along with demos, tutorials, and examples. You might also want to also take a look at our "Teacher in a Book" - this is available from our downloads page.


mizutani_jun 10-14-2010 04:49 PM

Thanks for the reply Masaki.
I already read all sections in "Teacher in a Book".
And from now i`ll take a look at resources online as my references.
Thanks again.


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