[CIG-GEODYN] error face midpoint problem

[Dimitri Komatitsch]

Hi Zixuan Wan,

Thanks for your message. We have never received any report of a bug in 
that tool, thus it could be that your mesh is not created properly (you 
can maybe check its shape using ParaView to see if there is any problem).

Another option is to decide not to generate the CPML layers in your 
initial mesh, and then use the program 
add_CPML_layers_to_an_existing_mesh.f90 in utils/CPML. That should work 
for sure (if, and only if, the external edges of your mesh are flat, 
which is a requirement for CPML).

Best wishes,
Dimitri.

> 
> 
> 
>> On Dec 19, 2018, at 11:11 PM, ZiXuan Wan <vanhairson at gmail.com 
>> <mailto:vanhairson at gmail.com>> wrote:
>>
>> Dear all,
>>
>> I'm trying to run a model with topology and CPML in 
>> SPECFEM3D_Cartesian.But some problems came to me when I was run 
>> database generation. The error is as follow:
>> error element face midpoint distance : 6.640625E-02 594.957275
>> error corner: 1 xyz 523625.188 3602220 1297.69434
>> error corner: 2 xyz 523644.656 3602220.25 1283.00208
>> error corner: 3 xyz 523637 3602199.50 1275.03577
>> error corner: 4 xyz 523617 3602199.25 1288.56860
>> xcoord : 523644.656 523625.188 523617.562 523637.438
>> ycoord : 3602220.25 3602220 3602199.25 3602199.50
>> zcoord : 1283.00208 1297.69434 1288.56860 1275.03577
>> STOP error element face midpoint.
>> This problem has been bothering me for a long time. Maybe the edge 
>> curve is too fluctuating?Could you please help me to figure out how to 
>> solve this problem?
>> I would really appreciate your help,
>> Thanks,
>>
>> Zixuan Wan | Chengdu university of technology
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-- 
Dimitri Komatitsch, CNRS Research Director (DR CNRS)
Laboratory of Mechanics and Acoustics, Marseille, France
http://komatitsch.free.fr