<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<p>In case you haven't seen this yet.</p>
<p>V.</p>
<p><br>
</p>
<div class="moz-forward-container"><br>
<br>
-------- Forwarded Message --------
<table class="moz-email-headers-table" cellspacing="0"
cellpadding="0" border="0">
<tbody>
<tr>
<th valign="BASELINE" nowrap="nowrap" align="RIGHT">Subject:
</th>
<td>[Clas12_software] Update of DC geometry in CCDB default
variation</td>
</tr>
<tr>
<th valign="BASELINE" nowrap="nowrap" align="RIGHT">Date: </th>
<td>Thu, 25 Apr 2019 18:42:48 +0200</td>
</tr>
<tr>
<th valign="BASELINE" nowrap="nowrap" align="RIGHT">From: </th>
<td>Raffaella De Vita <a class="moz-txt-link-rfc2396E" href="mailto:Raffaella.Devita@ge.infn.it"><Raffaella.Devita@ge.infn.it></a></td>
</tr>
<tr>
<th valign="BASELINE" nowrap="nowrap" align="RIGHT">To: </th>
<td>clas12 software <a class="moz-txt-link-rfc2396E" href="mailto:clas12_software@jlab.org"><clas12_software@jlab.org></a></td>
</tr>
</tbody>
</table>
<br>
<br>
Dear All,<br>
As discussed at the software meeting today, the DC geometry in the
CCDB default variation was updated with the so-called
“installation” geometry that accounts for some changes of the
chamber positions with respect to the original, pre-installation
drawings. The DC geometry in the default variation now coincides
with the one in the may_2018_engineers variation, which we have
been using routinely for several months. This update removes the
need of specifying the may_2018_engineers variation in running
reconstruction.<br>
<br>
As a consequence of this change, gemc 4.2.4 and older version,
that used the old DC geometry, are now deprecated. The
recommendation for all user is to use gemc 4.3.0, which implements
the correct DC geometry. Users who may be interested in
reconstructing old simulations Dione with gemc 4.2.4 or older can
use the CCDB variation dc_geo_gemc424 that contains the old,
pre-installation geometry.<br>
<br>
Note that chefs, who are processing real data with DC alignment
tables, should continue using the specific variations that were
created for this purpose.<br>
<br>
Best regards,<br>
Raffaella<br>
<br>
_______________________________________________<br>
Clas12_software mailing list<br>
<a class="moz-txt-link-abbreviated" href="mailto:Clas12_software@jlab.org">Clas12_software@jlab.org</a><br>
<a class="moz-txt-link-freetext" href="https://mailman.jlab.org/mailman/listinfo/clas12_software">https://mailman.jlab.org/mailman/listinfo/clas12_software</a></div>
</body>
</html>