[Halld-offline] reducing file sizes

[Blake Leverington]

ok, I think maybe I wasn't clear or there's something I don't 
understand. Since I'm doing background MC work I need to know what 
particle types and reactions pass my reconstruction cuts so I still 
probably need  <mctrajectory> tag. I assume this is where the DMCThrown 
information comes from.  But I was also under the impression that 
<reaction> contains information about the vertex and so on for 
reconstructing angles.

-Blake

Richard Jones wrote:
> Blake,
>
> The rules are simple: just cut out entire tags (anything goes) to kill 
> what you don't want.  I think this is too clear to risk mistakes.  
> Simply if you kill a tag then all of its contents disappear with it.  
> It sounds to me like you still want to kill the <reaction> ... 
> </reaction> tag and the <mctrajectory>..</.mctrajectory> tag.  After 
> that, you are down to basically just what you want.
>
> -Richard J.
>
> Blake Leverington wrote:
>> Hi Richard,
>>
>> Ok, I followed your instructions and everything went smoothly, so 
>> thank you. I ended up with a 70% reduction in my files sizes, 165MB 
>> down to 51MB. I've attached my edited hddm header file, could you 
>> take a quick look to see if there is anything else I could cut out? I 
>> think I took out everything unwanted, I think,  but I'm not familiar 
>> enough with the hddm formatting.  All I require is photon 
>> reconstruction in the FCAL and BCAL and the truth information.
>>
>> Cheers,
>> -Blake
>>
>>   
>