Re: A GDML file which cannot be parsed

Hello Sergey,

Thank you so much again.

I will try the SVN head to avoid the first problem, and will wait for your fix for the second (of course it can be easily fixed by hand or 'sed').

I have already issued a feature request ticket at https://savannah.cern.ch/bugs/index.php?62502 for the third one which could be fixed by another developer.

Regards,

OKUMURA, Akira oxon_at_juno.phys.s.u-tokyo.ac.jp Department of Physics, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033
TEL/FAX +81 3-5841-4173/4059
Skype : okumura.akira

On 2010/02/08, at 17:34, Sergey Linev wrote:

> Hi Akira,
>
> > 1) multiple comment lines are invalid
> > e.g.
> > <!-- comment1 -->
> > <!-- comment2 -->
> > causes
> >
> > Error in <TXMLEngine::ParseFile>: No multiple content entries
> allowed, line 7
>
> Problem with comments handling was solved in SVN head version of ROOT.
>
>
> > 2) spaces before or after an equal sign are invalid
> > e.g.
> > <atom value= "1" />
> > causes (note: a white spaces exist before "1")
> >
> > Error in <TXMLEngine::ParseFile>: Invalid attribute value, line 9
>
> It is limitation of ROOT xml parser, I will try to fix it soon.
>
>
> > 3) capital exponent style is invalid
> > e.g.
> > <D value="1E-25" unig="g/cm3"/>
> > causes
> >
> > Error in <TFormula::Compile>: Bad numerical expression : "1E"
> >
> > this is a limitation of TFormula as it says.
>
> It is limitation of TFormula class, one could fix it too.
>
>
> > 4) tessellated and triangular are invalid
> >
> > Error: Unsupported GDML Tag Used :tessellated. Please Check
> Geometry/Schema.
> > Error: Unsupported GDML Tag Used :triangular. Please Check
> Geometry/Schema.
>
> This is error, produced by TGDMLParse class.
> One should check if syntax of your xml file conform with GDML or not.
>
>
> > Do I always have to modify GDML files by hand to workaround them?
>
> Beside last problem, you could avoid other by manual editing of xml
> file.
>
> Regards,
> Sergey
>
>
> Akira OKUMURA wrote:
>> Hello Sergey,
>>
>> Thank you for you advise.
>>
>> I merged the two files by hand as you suggested, but I still get
>> some errors. I list 4 error types. Are they all an intrinsic
>> problems in my GDML or just limitations in ROOT? Do I always have
>> to modify GDML files by hand to workaround them?
>>
>> 1) multiple comment lines are invalid
>> e.g.
>> <!-- comment1 -->
>> <!-- comment2 -->
>> causes
>>
>> Error in <TXMLEngine::ParseFile>: No multiple content entries
>> allowed, line 7
>>
>> 2) spaces before or after an equal sign are invalid
>> e.g.
>> <atom value= "1" />
>> causes (note: a white spaces exist before "1")
>>
>> Error in <TXMLEngine::ParseFile>: Invalid attribute value, line 9
>>
>> 3) capital exponent style is invalid
>> e.g.
>> <D value="1E-25" unig="g/cm3"/>
>> causes
>>
>> Error in <TFormula::Compile>: Bad numerical expression : "1E"
>>
>> this is a limitation of TFormula as it says.
>>
>> 4) tessellated and triangular are invalid
>>
>> Error: Unsupported GDML Tag Used :tessellated. Please Check
>> Geometry/Schema.
>> Error: Unsupported GDML Tag Used :triangular. Please Check Geometry/
>> Schema.
>>
>> Regards,
>>
>> OKUMURA, Akira oxon_at_juno.phys.s.u-tokyo.ac.jp
>> Department of Physics, The University of Tokyo
>> 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033
>> TEL/FAX +81 3-5841-4173/4059
>> Skype : okumura.akira
>>
>> On 2010/02/08, at 16:31, Sergey Linev wrote:
>>
>>> Dear Akira,
>>>
>>> Unfortunately, xml syntax you have does not supported by ROOT xml
>>> parser.
>>> More precisely, this one:
>>>
>>> ...
>>> <!DOCTYPE gdml [
>>> <!ENTITY materials SYSTEM "MT3_materials.xml">
>>> ]>
>>> ...
>>>
>>> and than reference like this:
>>>
>>> ...
>>> <!-- Materials definition CallBack -->
>>> &materials;
>>> ...
>>>
>>> You should merge these files together to be able use them in ROOT.
>>>
>>> Regards,
>>> Sergey Linev
>>>
>>>
>>> --
>>> Sergey Linev Mail: S.Linev_at_gsi.de
>>> GSI, Experiment Elektronik Phone: +49-6159-71-1338
>>> Planckstr. 1 FAX: +49-6159-71-2986
>>> D-64291 Darmstadt
>>>
>>> GSI Helmholtzzentrum für Schwerionenforschung GmbH
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>>> Geschäftsführer: Prof. Dr. Horst Stoecker; Christiane Neumann
>>> Vorsitzende des Aufsichtsrates: Dr. Beatrix Vierkorn-Rudolph
>>>
>>>
>>>
>>> Akira OKUMURA wrote:
>>>> Hello ROOTers,
>>>>
>>>> I created a GDML file using the trial version of FASTRAD which
>>>> can convert CAD STEP files to GDML files.
>>>> http://www.fastrad.net/
>>>>
>>>> The attached files are those created by FASTRAD. But I cannot
>>>> open MT3.gdml from TGeoManager.
>>>>
>>>> $ root
>>>> root [0] TGeoManager::Import("MT3.gdml")
>>>> Info in <TGeoManager::Import>: Reading geometry from file: MT3.gdml
>>>> Error in <TXMLEngine::ParseFile>: XML syntax error at line 3
>>>> Error in <TGeoManager::Import>: Cannot open file
>>>> (class TGeoManager*)0x0
>>>>
>>>> MT3.gdml includes an external XML file, MT3_materials.xml, which
>>>> is also attached. I suppose this inclusion is the reason of this
>>>> parser error.
>>>>
>>>> Is it possible to handle this kind of files in ROOT? I can open
>>>> them when using Geant4.
>>>>
>>>> Regards,
>>>>
>>>> OKUMURA, Akira oxon_at_juno.phys.s.u-tokyo.ac.jp
>>>> Department of Physics, The University of Tokyo
>>>> 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033
>>>> TEL/FAX +81 3-5841-4173/4059
>>>> Skype : okumura.akira
>>>>
>>
>
Received on Mon Feb 08 2010 - 09:46:03 CET