Re: [fluka-discuss]: Trying to use geometry out of stl-format

From: Chris Theis <>
Date: Sun, 23 Feb 2014 19:26:11 +0000

Dear Kilian,

I'm afraid that SimpleGeo provides some features (e.g. surface or b-rep models) which are not supported by FLUKA at all. Currently you can only use those models as a mockup or 3D template in SimpleGeo, while modelling your actual geometry with CSG methods. This way you can ensure that the geometry that you've built is matching a 3d CAD model for example. However, you cannot simply export the CAD model via SimpleGeo to FLUKA because this type of surface models is not supported by FLUKA's geometry kernel.


> On 23 Feb 2014, at 16:31, "Kilian Baumann" <> wrote:
> Dear fluka-experts,
> I have a complex geometry, described in a stl-file. Since this kind of
> file is not compatible with FLUKA (stl just describes surfaces) I
> converted this stl-file to a 3D-Wavefront (obj) file. When impoting
> this file to SimpleGeo there are no problems. I can edit names,
> materials, positions, etc. However when exporting my geometry to an
> input-file for FLUKA it does not work, since the with SimpleGeo
> defined region (my obj-file) does not link to any body. So is there
> any possibility to define a new body out of my obj-file? Because with
> this new body I could create my region. Or is there any other way, how
> I could define my geometry with the obj-file?
> Thanking you in advance!
> Best regards,
> Kilian
Received on Sun Feb 23 2014 - 21:23:09 CET

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