Dumping std::vector<myclass> to TTree

ROOT
1

Hello,

I am trying to save std::vector item to TTree, where

class myclass
{
public:
double v1;
double v2;
}

Is it possible?

Thanks,

Kirill

2

Hi,

of course! See the part on Loader.C in root.cern.ch/phpBB2/viewtopic.php?t=10029 Once you have called “.L Loader.C+” you can add objects of your class to the TTree.

Cheers, Axel.

3

Thanks, Axel!

Thank you very much for the link! Though, I’m afraid I won’t be able to do this because I’m not using a macros, but some piece of C++ code running in Athena :slight_smile:

Thanks again,

Kirill

[quote=“Axel”]Hi,

of course! See the part on Loader.C in root.cern.ch/phpBB2/viewtopic.php?t=10029 Once you have called “.L Loader.C+” you can add objects of your class to the TTree.

Cheers, Axel.[/quote]

4

Hi,

look for how to create dictionaries inside Athena, then; there is a Wiki page by Gordon Watts. You should ask your Atlas software people for help if you get stuck building the dictionary.

Cheers, Axel.

5

Hi, Axel,

OK, thanks!

Kirill

[quote=“Axel”]Hi,

look for how to create dictionaries inside Athena, then; there is a Wiki page by Gordon Watts. You should ask your Atlas software people for help if you get stuck building the dictionary.

Cheers, Axel.[/quote]