[Clas12_software] geometry service running on claradm

[Mac Mestayer]

Hello again Johann;

I did have one more question; what does (sector = "0") mean?

 				- Mac

"mestayer at jlab.org", (757)-269-7252

On Mon, 1 Apr 2013, Johann Goetz wrote:

> Hi Mac,
> Thanks! The "dc/sector_volumes" are an XML string containing the parameters
> used specifically by GEMC to create the trapesoids. Here is an example of
> Layer 1, Superlayer 1, Region 1, Sector 1. It takes a bit of effort to see
> the data in this, but XML is not really designed to be read by humans even
> though it is technically "human-readable." ;) You'll notice that the tags
> correspond more or less to the GEANT4 G4Trap constructor.
>
>
> <geometry>
>    <drift_chamber>
>        <volumes sector="0">
>
>            <sec1_reg1_slyr1_lyr1>
>                <color>66aadd</color>
>                <description>Drift Chamber Sector 1 Region 1 Superlayer 1
> Senselayer 1</description>
>                <dimensions>0.5693*cm -25*deg 90*deg 75.5877*cm 6.66352*cm
> 85.2655*cm -7.58295*deg 75.5877*cm 6.94289*cm 85
> .5449*cm -7.58295*deg</dimensions>
>                <exist>1</exist>
>                <hit_type>DC</hit_type>
>                <identifiers>sector ncopy 0 superlayer manual 1 layer
> manual 1 wire manual 1</identifiers>
>                <material>DCgas</material>
>                <mfield>no</mfield>
>                <mother>sector1</mother>
>                <ncopy>1</ncopy>
>                <pMany>1</pMany>
>                <pos>-6.31597*cm -2.47111*cm -8.3906*cm</pos>
>                <rotation>0*deg 0*deg 6*deg</rotation>
>                <sensitivity>DC</sensitivity>
>                <style>1</style>
>                <type>G4Trap</type>
>                <visible>1</visible>
>            </sec1_reg1_slyr1_lyr1>
>
> [... snip (lots more XML objects for each volume) ...]
>
>        </volumes>
>    </drift_chamber>
> </geometry>
>
> --
> Johann <http://sites.google.com/site/theodoregoetz/>
>
>
> On Mon, Apr 1, 2013 at 3:50 PM, Mac Mestayer <mestayer at jlab.org> wrote:
>
>> Good work, Johann and Yelena!
>>
>> I have a couple of questions:
>>
>> What is the content of dc/sector_volumes?  Is it a set of
>> generalized trapezoids?
>>
>> Also, do either of your requests return plane information?
>>
>>                         - Mac
>>
>> "mestayer at jlab.org", (757)-269-7252
>>
>>
>> On Mon, 1 Apr 2013, Johann Goetz wrote:
>>
>>  I have started the CLAS12 detector geometry service on claradm.jlab.org.
>>> You can access it through clara at:
>>>
>>> "129.57.28.27/CCDB/CLAS12 Geometry Service"
>>>
>>> The service expects a property-tree object. If you send it a blank (or
>>> malformed) request object, it will respond with a string containing an
>>> error message and the following usage statement:
>>>
>>> CLAS12 Geometry Service version 0.4.0
>>> written by: Johann Goetz, Yelena Prok
>>>
>>> This service returns the expanded geometry parameters to other
>>> services. It expects a property list which must specify the
>>> request in the form: system/values such as dc/wire_endpoints or
>>> dc/sector_volumes.
>>>
>>> Input property list keys:
>>>    quiet:    (true|false)
>>>    verbose:  (true|false)
>>>    units:    (cm|mm)
>>>    coordsys: (sector|lab)
>>>    request:  (one or more of the following separated by spaces)
>>>              dc/wire_endpoints
>>>              dc/sector_volumes     <-- ignored keys: units, coordsys
>>>
>>> Output type: XML string
>>>
>>> As you can see, at the moment only the DC is supported. The BST is in the
>>> library but not exposed in the service quite yet. If you see anything
>>> wrong, please file a bug report on the CLAS12 bug tracking
>>> website<https://clasweb.jlab.**org/mantisbt/my_view_page.php<https://clasweb.jlab.org/mantisbt/my_view_page.php>>
>>> under
>>>
>>> the project "Constants Database"
>>> Thank you,
>>>
>>> Johann <http://sites.google.com/site/**theodoregoetz/<http://sites.google.com/site/theodoregoetz/>
>>>>
>>>
>>>
>