[Therion] Ponit Label Alignment

[Bruce Mutton]

Hi

I have had a long standing (at least since version 0.5.1) difficulty with
point label text alignment.

(Currently using 5.2.7)

 

It seems that if rotate = 0 and the alignment of the scrap in the map editor
matches (more or less) the alignment of the scrap in pdf outputs, then
commands such as  -align right or -align tl are honoured.

 

If however rotate = 70 (for example) or the scrap alignment in the map
editor is significantly different to the alignment of the scrap in the pdf
outputs then the -align parameters are incorrectly (in my view) applied.

 

The effect of this is to require the user to align scraps and xvi files to
match the finished pdf drawing output if text alignment is to be readily
controllable.  It also makes it nearly impossible to produce a scrap that
generates nice labels where it is desired to produce sets of pdf outputs
with various orientations.

 

In the attachment I have put together a dataset that starts to demonstrate
characteristics of the problem.

I have superposed survey station points and point labels so that the
alignment can be observed - a clear pattern is observable.

You can see that the alignment is based on the orientation in the map
editor, not the pdf output.

I have added some text that has orientation and applied some distortion to
the scrap by misaligning the survey stations, so you can see (another
reason)  why 'orientation' of point labels is not a good idea - scrap
distortions misalign the text a little. 

 

While it may seem trivial in this example, on a real map with labels
(perhaps at the end of arrows) it tends to make a real mess that can only be
resolved by iteration and can not usually be resolved if two or more
distinct 'rotations' are required without changing all the point labels
positions.  Not a feasible proposition.

 

Has anyone else noticed or had difficulty with this behaviour?

Is it likely that it can be altered?

 

Regards

Bruce

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