<html> <head> <meta content="text/html; charset=windows-1252" http-equiv="Content-Type"> </head> <body text="#000000" bgcolor="#FFFFFF"> <div class="moz-cite-prefix">On 04.09.2014 13:49, <a class="moz-txt-link-abbreviated" href="mailto:gate-users-request@lists.opengatecollaboration.org">gate-users-request@lists.opengatecollaboration.org</a> wrote: </div> <blockquote cite="mid:mailman.123.1409824143.1509.gate-users@lists.opengatecollaboration.org" type="cite"> <pre wrap="">Message: 4 Date: Thu, 4 Sep 2014 14:22:51 +0430 From: Ali User <a moz-do-not-send="true" class="moz-txt-link-rfc2396E" href="mailto:gateuser2014@gmail.com"><gateuser2014@gmail.com></a> To: <a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="mailto:gate-users@lists.opengatecollaboration.org">gate-users@lists.opengatecollaboration.org</a> Subject: [Gate-users] problem with assigning a shape to a new volume Message-ID: <a moz-do-not-send="true" class="moz-txt-link-rfc2396E" href="mailto:CAAiyeaSgWHUatD+rTPgyNZMegZjCg-rzY5-w=Qvyk+9J1q=MoA@mail.gmail.com"><CAAiyeaSgWHUatD+rTPgyNZMegZjCg-rzY5-w=Qvyk+9J1q=MoA@mail.gmail.com></a> Content-Type: text/plain; charset="utf-8" Hi every body, After I enter following commands in vGate_2.1: *Idle> gate/world/daughters/name XXX* *Idle> gate/world/daughters/insert box* I face this error: */home/gate/Progs/Gate/gate_v6.2/source/geometry/src/GateMaterialDatabase.cc (l.132): GateMaterialDatabase: could not find the definition for material 'Vacuum' in material files* And once I enter *Idle> /gate/geometry/setMaterialDatabase GateMaterials.db* following message appears *-------- EEEE ------- G4Exception-START -------- EEEE -------* **** G4Exception : GateMDBFile* * issued by : GateMDBFile::GateMDBFile* *Could not find material database file 'GateMaterials.db'* **** Fatal Exception *** core dump **** *-------- EEEE -------- G4Exception-END --------- EEEE -------* the result is the same when I type *Idle> /gate/geometry/setMaterialDatabase data/GateMaterials.db* what is the problem? and how can I solve this problem to define my volume? Thank you</pre> </blockquote> Hello, Try copy the GateMaterials.db to the folder there are your project macro files, and try something like: /vis/disable /gate/geometry/setMaterialDatabase GateMaterials.db /gate/world/geometry/setXLength 400. cm /gate/world/geometry/setYLength 400. cm /gate/world/geometry/setZLength 400. cm /gate/run/initialize </body> </html>