Hi Enrico - Thank you very much! That helps. There is one more step that I had to figure out - After importing the VTK file into Paraview, I had to click on Apply. What are the units? I think it is all in meters, but not sure. ======== Bill Gee On Thursday, January 27, 2022 8:57:59 AM CST Enrico Fratnik wrote:
Dear Bill,
attached you can find the screenshots of the steps I have described.
Hope this can help you
enrico
On Thu, Jan 27, 2022 at 3:23 PM Bill Gee <bgee@campercaver.net> wrote:
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@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
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