Re: (no subject)

Hi Andrei, and VMC developers

I think I understand why I have problems, it seems I compiled geant3_vmc without
support for Root to VMC convertions. At least I see that gMC->IsRootGeometrySupported() returnes me 0 instead of expected 1. My variables like USE_VGM is set 1.
To include that support I modified in geant3_vmc/Makefile the following line:

CXXFLAGS := $(CXXOPTS) $(CLIBCXXOPTS) -I. -I$(ROOT_INCDIR) -ITGeant3 -DWITHBOTH Which I assumed to follow README advice. What wrong I am doing?

Best regards, Dmitry

Andrei Gheata wrote:

> Hi Dmitry,
>
>> Top volume is SiliconPlatePadX0. Master volume is TOP
>
>
> This is quite strange: you should get TOP instead of
> SiliconPlatePadX0. Make sure TOP is the first volume that you create
> in your ConstructGeometry. Make also sure that you do not draw some
> volume meanwhile because this will change the current top volume.
>
>> Warning in <TGeoManager::CloseGeometry>: geometry already closed
>
>
> If your geometry is built/closed directly via TGeo (not VMC) you
> should call gMC->SetRootGeometry() after gGeoManager->CloseGeometry()
>
>> Also a not clear thing for me is that I assumed to build the geometry in
>> MCApplication::ConstructGeometry()
>
>
> Your assumption is correct: here is the place to build your geometry
> or to load it from a root file.
>
> Hope this helps,
> Cheers,
> Andrei
>
> Dmitry Naumov wrote:
>
>> Dear VMC developers,
>>
>> Let me ask you a further question. Just briefly let me remind -
>> I adapted Ex03 from VMC for my application which builds
>> geometry with TGeo, converts it in memory to G3,4 geometries.
>>
>> Up to now I was plying mainly with G4 engine, now I decided
>> to check what happens if I turn on G3 instead of G4. What I find
>> is that my original geometry defined as:
>> TOP
>> TOP/Plates
>> TOP/Plates/tubes
>> etc
>> is seen with G3 in a strange way:
>>
>> <skip>
>> Top volume is SiliconPlatePadX0. Master volume is TOP
>> Warning in <TGeoManager::CloseGeometry>: geometry already closed
>> <skip>
>>
>> Also a not clear thing for me is that I assumed to build the geometry in
>> MCApplication::ConstructGeometry()
>>
>> This works perfectly in G4 interface, while it crashes with G3
>> interface.
>> In order not have this crash I have to build the geometry before
>> InitMC() method.
>> Is it normal or I am confusing something?
>>
>>
>> Thank you
>> Dmitry
>>
Received on Thu May 12 2005 - 09:06:48 MEST