[Therion] ***UNCHECKED*** Horrific Warping between maps where I want my lines to join

[Bruce Mutton]

Sorry Alistair

I was too quick to respond.  Your original image suggests that when you first posted the repository scraps were well matched, so my advice is redundant.



So there is something else going on.  Without delving into it I would guess an inappropriate point station in the drawing.

Bruce

 

From: Bruce Mutton <bruce at tomo.co.nz> 
Sent: Thursday, 31 October 2019 19:27
To: 'List for Therion users' <therion at speleo.sk>
Subject: Horrific Warping between maps where I want my lines to join

 

> The walls ends between the 2 scraps that you try to join are far from each other (1 passage is 10 m large, the other 20 m large), so even if you can join them, you will have strong distortion, like in the attachment.

 

Xavier has identified the problem here.

It looks to me like a survey sketching, drawing or user interpretation of survey data error.

The red lines are the undistorted scraps, and mimic exactly the shape of the scraps in the th2 files.  The red scrap outlines can be seen to overlap significantly.  Therefore, Therion has made a sensibly minimal morph to bring the scraps together (black lines).  It is working perfectly.

My first rule of joining scraps is to make sure they match approximately before invoking join, otherwise Therion will continually thwart your attempts.

Step 1. Comment out the join

Step 2. Make edits to the individual scraps so the wall lines nearly join

Step 3. Reinstate the join

 

Bruce

 





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