Re: [Swig-user] Using std::vector<> with objects from an external module

[emitc2h <mt...@sf...>]

Hi David,

It turns out there is a much easier way to invoke a C++ class in python
using the ROOT infrastructure. It basically can generate its own python
modules from C++ classes. This is the solution I adopted. Thanks again for
your help.

Cheers,
Michel.


emitc2h wrote:
> 
> Hi David,
> 
> Thanks, that was definitely worth exploring, however, it didn't solve the
> problem. I get the exact same segmentation fault, so I guess it is not an
> ownership problem. Still, the link you sent me is very helpful.
> 
> Cheers,
> Michel.
> 
> 
> david.froger wrote:
>> 
>> Hi Michel,
>> 
>> The solution may be: http://swig.org/Doc2.0/Python.html#Python_nn30
>> 
>> Could you try something like this, depending on what does the
>> underlying C++ code :
>> 
>> from ROOT import TLorentzVector
>> from Pi0Reco import Pi0Reco
>> 
>> track1 = TLorentzVector(15000, 1.5, 2.3, 140)
>> track2 = TLorentzVector(6000, 1.41, 2.25, 140)
>> 
>> track1.thisown = 0
>> track2.thisown = 0
>> 
>> tracks = [track1, track2]
>> 
>> cluster1 = TLorentzVector(8000, 1.55, 2.19, 0)
>> cluster2 = TLorentzVector(7500, 1.46, 2.37, 0)
>> cluster3 = TLorentzVector(6000, 1.41, 2.25, 0)
>> 
>> cluster1.thisown = 0
>> cluster2.thisown = 0
>> cluster3.thisown = 0
>> 
>> clusters = [cluster1, cluster2, cluster3]
>> 
>> algo = Pi0Reco(tracks, clusters)
>> 
>> Pi0s = algo.get_Pi0s()
>> 
>> print len(Pi0s)
>> 
>> Best,
>> 
>> David
>> 
>> ------------------------------------------------------------------------------
>> All of the data generated in your IT infrastructure is seriously
>> valuable.
>> Why? It contains a definitive record of application performance, security 
>> threats, fraudulent activity, and more. Splunk takes this data and makes 
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>> 
> 
> 

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