From: Stefan Roesler (sroesler@mail.cern.ch)
Date: Sat Nov 03 2007 - 19:57:18 CET
Hi Gabriel
Be careful, RCC are defined by the coordinates of the center of one
circular face (first three parameters) and a vector *starting at that
face* and pointing to the other face (parameters 4-6).
In your case, e.g.
RCC CC00W00 0.0 0.0 0.55 0.0 0.0 1.55 5.0
is a cylinder along z from z=0.55 to z=2.1 (and not from z=0.55 to z=1.55
as for the equivalent RPP).
Regards
Stefan
On Fri, 2 Nov 2007, Gabriel Perdue wrote:
> Hello,
>
> I have the following geometry defined in free form. The alignment may look a
> tad funny, but that is just the font of my mail program. I believe everything
> that needs to be aligned is aligned correctly. (I have attached my .inp file
> just in case.)
>
>
> *...+....1....+....2....+....3....+....4....+....5....+....6....+....
> 7....+....8
> GEOBEGIN COMBINAT
> 0 0 A simple detector
> *...+....1....+....2....+....3....+....4....+....5....+....6....+....
> 7....+....8
> SPH BlakHole 0.000 0.000 0.000 5000.000
> SPH World 0.000 0.000 0.000 3000.000
> *RPP CC00 -5.000 5.000 -5.000 5.000 0.000 1.550
> *RPP CC00S00 -5.000 5.000 -5.000 5.000 0.050 0.550
> *RPP CC00W00 -5.000 5.000 -5.000 5.000 0.550 1.550
> *RPP CC00VS00 -0.500 0.500 -0.500 0.500 0.050 0.550
> RCC CC00 0.0 0.0 0.00 0.0 0.0 1.55 5.0
> RCC CC00S00 0.0 0.0 0.05 0.0 0.0 0.55 5.0
> RCC CC00W00 0.0 0.0 0.55 0.0 0.0 1.55 5.0
> RCC CC00VS00 0.0 0.0 0.05 0.0 0.0 0.55 0.5
> END
> *...+....1....+....2....+....3....+....4....+....5....+....6....+....
> 7....+....8
> R01bh 2 +BlakHole -World
> R02World 2 +World -CC00
> R03CC00 3 +CC00 -( | +CC00S00 | +CC00W00 )
> R04CC00S 3 +CC00S00 -CC00VS00
> R05CC00W 3 +CC00W00
> R06CC00V 3 +CC00VS00
> END
> *...+....1....+....2....+....3....+....4....+....5....+....6....+....
> 7....+....8
> *GEOEND
> GEOEND 25.0 25.0 4.0 -25.0 -25.0 -1.0DEBUG
> GEOEND 100.0 100.0 10000.0 &
> *...+....1....+....2....+....3....+....4....+....5....+....6....+....
> 7....+....8
>
> When I run with this geometry, I get many copies of this sort of error message
> from the geometry de-bugger:
>
> **** Lookdb: Geometry error found ****
> **** The point: 1.E-10 -5. 0.55 ****
> **** is contained in more than 1 region ****
> **** (regions: 4 R04CC00S 5 R05CC00W ) ****
>
> However, when I uncomment the RPP shapes above, and comment out the RCC
> shapes, everything appears to work well, and the geometry debugger provides no
> error messages. I believe the (free form) definitions of the RCC shapes I am
> using is correct. I could maybe understand if there were an error in both
> cases here, but only seeing this error for the RCC shapes has me puzzled.
>
> Does anyone know what might be causing this sort of error? Thanks!
>
> pax
> Gabe Perdue
>
>
-- ___________________________________ Stefan Roesler CERN, SC/RP CH-1211 Geneva 23 Switzerland Phone: +41-22-7679891 Fax: +41-22-7669639 E-mail: Stefan.Roesler@cern.ch
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