[Therion] Complex model visualization with Aven, Loch, KML and Compass

[Evaristo Quiroga]

Hi,

I have been a Lary Fish Compass user for almost 20 years. One of the 
reasons for having been so loyal to the program is its powerful 
visualizers (Cave Viewer and CaveXO); and at a time when the data was 
entered by hand its powerful data editor (Cave Editor).

In Compass there are 2 basic types of concepts: "Surveys" assimilable to 
the Therion "Centerlines" and "Section", used normally to define Caves 
or caves parts like Therion "Surveys".

With the "Complex Plotting Options" menu of the "Cave Viewer", I  can 
show, hide, color, symbol, etc, of the centerlines and walls by section, 
surveys, dates and distances. It's a very powerful tool to analyses 
complex caves systems.



The Compass PLT exported by Therion don't have the data structured by 
Compass "Surveys" and "Sections"; so I lose the ability to use the 
complex visualization options.


Aven is a very powerful tool too. I like the easy and intuitive rotation 
controls and Error visualization. I can show/hide Therion surveys. But a 
can't show/hide the "Centerlines". All my centerlines have "id" and 
"title". I can't choose a color by survey. I can show/hide duplicate 
shots. I can colorize by depth, date, error, slope and lenght.



Loch, the Therion visualizer. It's a funny tool. I like the 3D walls 
using the scraps walls. I can colorize only by depth and default. I 
don't know if I can show/hide the the different surveys. The Selection 
Menu is only informative, or you can play with it? . I can show/hide 
duplicate centerline shots, but I can hide duplicate shots walls (see an 
other post).



Therion export models to KML, and I can use Google Earth to visualize 
it. With Google Earth I can show/hide the surveys and centerlines 
(Therion don't  export the id or title, but I can recognize the name  of 
the first station. I can change color and style to surveys and 
centerlines. I can't view in 3d underground.



I am now an enthusiast of Therion/Survex and its derivative products: 
complex loop closure with weighting  SD error by centerlines quality, 
sketch morphing, complete map creation,  semantic symbology, automatic 
scraps warps  when the centerline change, etc. That is why new projects 
are currently with Therion, and I am transferring from Compass the data 
of our jewel in the crown: Sistema Arañonera.

Now, as a basic and quick  model analysis tool, I use Aven. Loch uses it 
for some 3d walls representation. But done to miss some Compass complex 
visualization for analysis of complicated systems. Ideally, for me,  
Therion would export PLT with a Compass "surveys" and "sections" 
structure, so I could use the best of both worlds.

Best Regards,

Evaristo.



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