[Therion] Calculation of cave volume

[עמרי גסטר]

Hi,
There was an option to download a .gltf file from cave view and upload it
to MeshLab and skip the Paraview software.
Unfortunately I tried to do it now and noticed that this option was
removed, I'm not sure why...It was very helpful.
I hope it will return soon.



On Thu, Jan 27, 2022 at 4:25 PM Benedikt Hallinger <beni at hallinger.org>
wrote:

> I'm not sure, but I somehow remember something about some script that
> did the caluclation.
> Never run it so far, however.
> And I don't remember the name.
>
> Would be cool if such a function would be integrated in therion itself
> and printed to the log...
> (maybe do both: just use LRUD data and another run by using the volumes
> calculated from the lox compiler)
>
>
> Am 2022-01-27 15:21, schrieb Bill Gee:
> > Hi Enrico -
> >
> > Just to see what this method would produce, I installed both Paraview
> > and MeshLab on my Fedora 35 system.  I opened a .lox file of the cave
> > in Loch (which displays a 3d rendering of the cave) and then exported
> > it to a .vtk file.  I opened the .vtk file in Paraview.  It shows
> > nothing.  I cannot find the export function.  The Save data feature
> > does not offer x3d as a file type.
> >
> > In Paraview the Information tab says there are zero cells, zero points
> > and zero memory used.  The x-, y- and z-range are "not available".
> >
> > The .vtk file exists and is about 16k bytes (it is a small cave).
> >
> > Am I missing something?
> >
> > ========
> > Bill Gee
> >
> >
> > On Thursday, January 27, 2022 7:52:57 AM CST Enrico Fratnik wrote:
> >> Hi Bill,
> >>
> >>    normally I export the VTK model of the cave from LOCH then I open
> >> it
> >> with ParaView
> >> With ParaView I export the model in x3d format and I open it with
> >> MeshLab
> >> where I use the filter "Surface Reconstruction: Screened Poisson" with
> >> pre-clean option active
> >> After that with the filter "Compute Geometric Measures" you can
> >> retrieve
> >> the volume on the log view.
> >>
> >> My big issue is which model is better to export with therion in order
> >> to
> >> obtain an acceptable volume: the one with "-wall-source splays" or
> >> with
> >> "-wall-source maps"?
> >>
> >> Hope this helps
> >>
> >> good caves to everyone
> >>
> >> enrico
> >>
> >> On Thu, Jan 27, 2022 at 1:37 PM Bill Gee <bgee at campercaver.net> wrote:
> >>
> >> > Hello everyone -
> >> >
> >> > Several years ago I made a map of a small cave.  Among the data that
> was
> >> > calculated was an estimation of the volume of the cave.  I need to
> find
> >> > that information again, but it has so far eluded me.  I thought it
> was in
> >> > therion.log along with other statistics like length and bounding box
> >> > dimensions, but now I do not find it there.  The estimation was based
> on
> >> > solids calculated from centerline and LRUD data.
> >> >
> >> > I looked in thTMPDIR and found nothing useful.  I also checked to see
> if
> >> > it comes from Aven or Loch.  Nothing there.  I looked through a KML
> file
> >> > and found nothing.
> >> >
> >> > Can any of you point me in the right direction?  Believe it or not, I
> need
> >> > to testify in court early next week about this.  It's a long story ...
> >> >
> >> > Thanks!
> >> > ========
> >> > Bill Gee
> >> >
> >> >
> >> >
> >> >
> >> > _______________________________________________
> >> > Therion mailing list
> >> > Therion at speleo.sk
> >> > https://mailman.speleo.sk/listinfo/therion
> >> >
> >>
> >>
> >>
> >
> >
> >
> >
> > _______________________________________________
> > Therion mailing list
> > Therion at speleo.sk
> > https://mailman.speleo.sk/listinfo/therion
> _______________________________________________
> Therion mailing list
> Therion at speleo.sk
> https://mailman.speleo.sk/listinfo/therion
>


-- 
בברכה,
עמרי גסטר
052-6124995
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.speleo.sk/pipermail/therion/attachments/20220127/038df797/attachment.htm>