[Therion] Joining surveys at a curved/sloping pitch

[Footleg]

Nice. I had not thought to join all the line points like that. I'll bear
that in mind next time I have a particularly tricky join.

Footleg

On Fri, 10 May 2019 at 14:39, Tarquin Wilton-Jones via Therion <
therion at speleo.sk> wrote:

> On 10/05/2019 14:28, Footleg wrote:
> > If the two scraps are in the same map layer (i.e. not separated by a
> > break line in the map definition) then the upper scrap will completely
> > hide any part of the lower scrap which passes under it. So the lower
> > scrap curved outline of the pit bottom can be quickly drawn a bit larger
> > than the curved line of the pit in the upper scrap, as any overlap will
> > be hidden.
>
>
>
> Sounds convenient, but sadly not possible in my case, as there is a
> break. But my manual process does work. Tested it out. Wish it were more
> convenient, but it works.
>
> 1. text editor, copy pit line from upper scrap in upper survey
> 2. text editor, paste pit line into lower scrap in lower survey
> 3. set -outline out, -visibility off
> 4. in XTherion, open lower survey
> 5. select first line point on the new line (it will be positioned
> somewhere weird), press "shift from"
> 6. select the line point on the wall line where it needs to end up,
> press "shift to"
> 7. select the new line, press "shift object"
> 8. connect walls to it as needed
> 9. in overall .th file, add joins for each line point, and the scrap as
> needed:
>
>   join pitchbottomSP at topsurvey pitchtopSP at bottomsurvey -smooth on
>   join pitchedge at topsurvey:0 pitchlip at bottomsurvey:0
>   join pitchedge at topsurvey:1 pitchlip at bottomsurvey:1
>   join pitchedge at topsurvey:2 pitchlip at bottomsurvey:2
>   join pitchedge at topsurvey:3 pitchlip at bottomsurvey:3
>   join pitchedge at topsurvey:4 pitchlip at bottomsurvey:4
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