[Gmsh] nodal coordinates

[Christophe Geuzaine]

Manav Bhatia wrote:
> Hi,
> 
>     Could I also add to my earlier question the following: Is it also  
> possible to get access to the derivatives of the local coordinates  
> with respect to the global ones? This might be a tricky issue for  
> curved geometries, since tensorial components might be used, but it  
> will be helpful.
>     I have the following problem: If I know the sensitivity of the  
> elementary points with respect to some parameter alpha, then I would  
> like to calculate the sensitivity of the global nodal coordinates with  
> respect to this parameter.
> 

Cf. Geo/GEdge.h and Geo/GFace.h.

We've been actively working towards making Gmsh more easily embedabble 
in oter codes. With recently nightly snapshots you can try "make 
install-lib", which will install a single gmsh library together with the 
geometric API header files.




>     Thanks in advance for your response.
> 
> Regards,
> Manav
> 
> 
> 
> 
> On Dec 29, 2007, at 8:49 PM, Manav Bhatia wrote:
> 
>> Hi,
>>
>>   I have a couple of questions about the meshing procedures inside  
>> gmsh. When an elementary entity (line/surface/volume) is defined and  
>> meshed, do the created nodes have local non-dimensionalized  
>> coordinates in their respective line/surface/volume definitions?
>>   If so, is it possible to get these printed, or have access to them  
>> through an API?
>>
>>   I would greatly appreciate any help on this matter.
>>   Happy Holidays and a Happy New Year to everyone...!!
>>
>> Regards,
>> Manav
>>
>>
> 
> 
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> 


-- 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science
http://www.montefiore.ulg.ac.be/~geuzaine