[Therion] cross-section drawing

[Wookey]

On 2006-12-21 08:42 +0100, Martin Sluka wrote:
> 
> On 21.12.2006, at 0:16, Wookey wrote:
> 
> > The biggest problem is finding the corner-markers.
> 
> There is a simple trick - just zoom out the scale of editation window  
> to 25 % -and move those red squares by mouse.

OK, yes, that works, but it takes 40 seconds to zoom in and another 40
seconds to zoom out again (on the largish file I have open right now),
so it is still slow and tedious. Also at this scale it is not possible
to see the cross-section I wish to place the scale marks next to
(obscrured by therion point blobs) so putting them in the right place
is difficult. I can see that this would work quite well for small
enough files/fast enough computers. It should go in the wiki.

Wookey
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