[Therion] Incorrect position of a scrap in extended projection

[Marco Menchise]

Hello, I have a strange problem while creating .xvi file to use as a
background for a .th2 file.

Here's the problem:

I have a .png image (image.png) and I want to create a scrap
(contained in the drawing_scrap.th2 file) with the image. I set the
image as the background of the scrap and I put on it 2 stations points
to let Therion properly scale and rotate the image.

The scrap is included in a map, which also contains the centerline.
Everything is exported in the  bg.xvi file which will be, in turn,
included as background image of another .th2 file. This way I create a
"canvas" for drawing cave extended projection.

I cannot figure out why Therion does not put the image in the correct
position respect to the centerline (see file sezione.th2 after running
Therion). The same approach works perfectly for scraps in the plan
projection.

I attach the relevant files.

Am I missing something? Is there a better way to do that?

Marco
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