How to define FACES in &GEOM?

[Mohammad Tavakol]

Hi

I am trying to define some upslope and downslope terrains using &GEOM  by defining verts and faces, but the problem is that I cannot find any tutorial or guide regarding how to define FACES !!!

I found this example :

&GEOM ID='HILL', IS_TERRAIN=T, SURF_ID='GRASS',
VERTS=
   0.000,   -150.000,   0.000,
 100.000,   -150.000,   0.000,
 300.000,   -150.000,  40.000,
 300.000,    150.000,  40.000,
 100.000,    150.000,   0.000,
   0.000,    150.000,   0.000,  
FACES=
   1 , 2 , 6, 1,
   2,  5,  6, 1,
   2,  3,  5, 1,
   3,  4,  5, 1 /

but I am confused why there are 6 verts and a 4*4 matrix of FACES!!!!!!!!

I searched through all the FDS user guide but found nothing!!! can anyone please help??

[Randy McDermott]

GEOM is not released, and therefore not supported, and there does not have documentation.  Please relax with your exclamation points.

FACES is a list of triplets (vertices) + 1 integer for the element of the SURF_ID list on the GEOM line.

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[Mohammad Tavakol]

Hi Randy. thank you very much for your answer.

But I had a look at FDS examples, and all hills and upslopes were defined using &GEOM namelist but I could find nothing about it. Thats why I was so confused.

Can you please explain a bit more about it?it's really useful for my work if I can use this namelist.

many thanks

[Randy McDermott]

Sorry, but as I said, GEOM is not yet supported.  When we release a beta version then we will discuss further on the forum.  For now, please use OBST.

To view this discussion on the web visit https://groups.google.com/d/msgid/fds-smv/c4342a63-2603-4635-ba34-be03f4c95d76n%40googlegroups.com.