[Therion] Bus error - caused by single point line??

[Martin Sluka]

On 16.2.2009, at 0:07, John Pybus wrote:

> Somehow we'd managed to create a line with only one point.  We'd  
> actually noticed this before (and even isolated a test-case, but  
> forgotten to send it to the list).  That case is attached.
>
> There's little point to having a line with only one point -- it  
> would very nice if therion provided an error message to warn about  
> them.

You may check your th2 files in plain text editor - check my mail  
from 2009.09.21- null lines

xxxxxxxxxxxxxxxxxxxxxxxx

check the th2 file for such null or single point lines:

line wall
endline

line wall -subtype unsurveyed
endline

or

line border -close on
# originaly two point line, but closed, so there are two line points  
in identical coordinates
   699.5 -2003.0
   699.5 -2003.0
endline

or :)

line wall -close off
   320.0 -3625.0
endline

xxxxxxxxxxxxxx

I made a simple grep patter to find such "null lines" in th2 files:

I have try grep search/replace

^\s*(\w+) \w+\s+end\1

and it look it works

Martin