[Therion] Loch 3D Model

Stacho Mudrak s.m at group-s.sk
Fri Jun 6 10:16:37 CEST 2008


It is strange, but this information is already used. If you try just
simple scrap, its passage height is calculated from LRUD data. If it
does not work, it is pribably due to wrong algorithm. Especially for
not very flat or very large scraps - current algorithm has problems.

Could you please try it on some small scrap, whether it really ignores
LRUD (e.g. changing UD from 10m to 20m does nothing)?

Thanks, S.

2008/6/6 Xavier Pennec <Xavier.Pennec at sophia.inria.fr>:
> Wouldn't it possible to take the up-down information from LRUD when they are
> present?
> Currently, it seems that as soon as there is a scrap, LRUD are completely
> ignored, which sometimes
> create very strange shapes which completely contradict the LRUD.
>
> Xavier
>
> Stacho Mudrak wrote:
>>
>> Unfortunatelly, you are right - current algorithm uses only plan
>> projection to create 3D model - no elevation projections are used.
>>
>> For vertical caves, this modelling approach is completely wrong. I
>> would like to change this, but no time until now :(
>>
>> Regards, S.
>>
>> On Thu, Jun 5, 2008 at 7:10 PM, Juergen Bohnert <juergen at bohnert.name>
>> wrote:
>>
>>>
>>> Hi Stacho,
>>>
>>> today I was working on a 3D model of a cave.
>>>
>>> Am I wrong or does Therion not use the extended elevation but only the
>>> 2D plan view for the 3D model?
>>>
>>> It would be great to be able to create a full 3D model of a cave using
>>> all available 2D map projections including profiles.
>>>
>>> Regards,
>>>
>>> Juergen
>>>
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>>>
>>
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>
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