Re: [Therion] Surveying Maze Caves

[Wolfgang Zillig]

Jonathan Prouty schrieb:
> Hello all,
>
> I very much appreciate all of the advice that you have given on this 
> project. I have already changed my plans a great bit as a result. I'm 
> sure that the product will be much better and come around sooner 
> because of this.
>
> One quick question:
> What do you think about quickly generating a polygon map using auriga, 
> then going in and using that map to sketch on top of, then creating a 
> *real* map in Therion? Are there any insurmountable obstacles 
> introduced by this method that I'm not seeing (Other than doubling the 
> amount of time spent in each passage....)?
>
> This suggestion violates a couple rules of good practice and 
> introduces the very real prospect that the sketch may never be 
> completed. The only reason I even mention it is because of the fact 
> that the local cave rescue squad would greatly benefit from a decent 
> map. There have been several rescues in the cave (local kids getting 
> lost, mostly) that have been severely slowed down as a result of the 
> rescuers having to blindly stumble around, missing the obvious 
> shortcuts that would have made their movements in the cave much more 
> efficient.
>
> Perhaps even a working polygon map might help, in the event a rescue 
> happens before the final map is created. At any rate, just a thought.
>
> As far as the actual mapping goes, I would love to be able to report 
> some progress, unfortunately, I can't. As it turns out, the cave is 
> embroiled in a bit of local caver politics. One of the older cavers in 
> my club has been working on surveying it for the last 10 years or so. 
> Even though no work has been done on that project for at least 2 
> years, he is very much against the idea of "resurveying" the cave, 
> even though that survey hasn't been finished, and most likely never will.
>
> I am planning on going ahead and surveying it, it has just been 
> greatly slowed down because of this. What a pain :-(.
>
> Sincerely,
> Jonny Prouty

Hello Jonathan,

I would at least reccomend to draw the outline during the survey because 
it makes it much easier to find your survey points again. I don't know 
auriga, so that I can't tell you anything about it but you can also 
create polygon plots with therion. An example should be in the wiki, If 
you don't find it, please ask as I have that code somewhere on my 
computer. If it is from advantage to do the drawing afterwards depends 
also on your drawing skills. It is good for therion to have a drawing 
that is more or less in scale. An other advantage is that the other 
people involved in the survey don't have to wait until you have finished 
the perfect drawing.

Regards

Wolfgang


 


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