External maths

Discussion and support for i2 Standard and i2 Pro applications

External maths

Postby nscirocco on Mon Nov 17, 2008 6:11 am

I'm trying out the sample external maths and i can't seem to get the "function" versions to work, either the C++ or the VB dlls. When i do "add plugin" and select the dll it doesn't appear in the list. Is there something missing from the samples to make them work or am i doing something wrong?
The VB "plugin" version with the simple sine wave works as expected. is there a C++ "plugin" sample available?

also, if i add the simple sine wave plugin twice and select a different frequency for each instance, i can't get both to appear in the graphs, it'll only allow me to select one at a time .. is this a limitation because the channel name is the same for both? any way around this?

i2 pro 1.0.3.106

-nigel.
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Re: External maths

Postby nscirocco on Thu Nov 20, 2008 3:33 pm

i got the functions to work .. you just have to register the dlls with regsrv32, once they're in the registry they show up in the functions list .. i guess the help section for external maths needs updating since you don't have to use the "add plugin" button at all.

-nigel.
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Re: External maths

Postby nscirocco on Fri Jan 02, 2009 7:19 am

i made a simple external function that interfaces with the python programming language which might make it easier for others to implement their own functions. for example, with the help of scipy it's only a few lines of code to make hanning, hamming, bartlett, blackman, etc. smoothing filters .. anyone interested?

-nigel.
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Re: External maths

Postby Holmz on Thu Feb 26, 2009 10:24 pm

nscirocco wrote:i made a simple external function that interfaces with the python programming language which might make it easier for others to implement their own functions. for example, with the help of scipy it's only a few lines of code to make hanning, hamming, bartlett, blackman, etc. smoothing filters .. anyone interested?

-nigel.


Nigel - yes I am interested in that...
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