Re: "'Vacuum' has no defaults" when ROOT read geometry written in GDML

Hi Xinchun,
What root version are you using? I cannot reproduce.

Regards,
Andrei

On 04/07/2011 03:49 PM, Xinchun Tian wrote:
> Hi Andrei,
>
> Thanks for you help, but I have already tried what you have suggested
> and I still got the same error:
>
> <material Z="1" formula=" " name="Vacuum" >
> <D value="1e-25" />
> <atom value="1.00794" />
> </material>
>
> Any idea?
>
> Thanks,
> Xinchun
>
> On Thu, Apr 7, 2011 at 4:08 AM, Andrei Gheata <Andrei.Gheata_at_cern.ch
> <mailto:Andrei.Gheata_at_cern.ch>> wrote:
>
> Hi,
> Define materials like below. If they are made of single elements, do
> not define them as compounds.
>
> Cheers,
> Andrei
>
> <material Z="13.0" name="ALUMINIUM">
> <D value="2.7"/>
> <atom value="26.98"/>
> </material>
> <element formula="IRON" Z="26.0" name="FE">
> <atom value="55.847"/>
> </element>
> <element formula="NICKEL" Z="28.0" name="NI">
> <atom value="58.71"/>
> </element>
> <element formula="CHROMIUM" Z="24.0" name="CR">
> <atom value="51.998"/>
> </element>
> <material name="IRON(COMPOUND)">
> <D value="7.8"/>
> <fraction ref="NI" n="0.099"/>
> <fraction ref="FE" n="0.703964"/>
> <fraction ref="CR" n="0.197"/>
> </material>
>
>
>
> On 04/06/2011 06:41 PM, Xinchun Tian wrote:
>
> Hi,
>
> I defined "Vacuum" as following:
>
> <materials>
> <element Z="1" formula="Vacuum" name="videRef"> <atom
> value="1"/></element>
> <material formula=" " name="Vacuum">
> <D value="1.e-25" unit="g/cc"/>
> <fraction n="1.0" ref="videRef"/>
> </material>
>
> <volume name="vCornerCutoutExtruNDOSV">
> <materialref ref="Vacuum"/>
> <solidref ref="sCornerCutoutExtruNDOSV"/>
> </volume>
>
> When ROOT read this geometry, I got "'Vacuum' has no defaults", what
> does that mean and how to solve it?
>
> I also played with "Lead" which gives the same message.
>
> Thanks,
>
> Xinchun
>
>
Received on Fri Apr 08 2011 - 17:03:12 CEST