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Angstrom symbol #862

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alaingdl opened this issue Dec 28, 2020 · 3 comments
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Angstrom symbol #862

alaingdl opened this issue Dec 28, 2020 · 3 comments
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@alaingdl
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As reported in a bug report on SF (deprecated), the Angstrom symbol is not well displayed in current GDL version
(tuto here [https://idlangstrom.wordpress.com/2011/03/31/angstrom-character-and-other-astronomical-stuff-for-idl/])

angstrom1 = '!6!sA!r!u!9 %!6!n' ;(to create the symbol)
angstrom2 = '!3' + STRING(197B) + '!X' ;(to use octal notation)
XYOUTS, 0.5, 0.5, /Normal, CharSize=2.0, 'Symbol: ' + angstrom1
XYOUTS, 0.5, 0.25, /Normal, CharSize=2.0, 'Symbol: ' + angstrom2
@GillesDuvert GillesDuvert added the bug Something isn't working label Jan 2, 2021
@GillesDuvert
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Hershey tables in GDL are incomplete (help welcome) and indeed, STRING(197B) is not an Angstrom. Related: showfont works, but simplex roman table goes only to 127, not 255. Gothic variants are absent.
On the positive side codes 123..127 are wrong in IDL (they duplicate 91..95) and are CORRECT within GDL.

GillesDuvert added a commit to GillesDuvert/gdl that referenced this issue Mar 14, 2021
@GillesDuvert
solved a few unicode font problems, including the angstrom bug gnudat…
bf8f333 
…alanguage#862.

Now TTF fonts in wx plots are ok.
@GillesDuvert
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According to the IDL doc !Z(U+00c5) is the thing to do.
Anyway, the future GDL release will handle STRING(197B) gracefully.

@GillesDuvert
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solved in #882

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@GillesDuvert @alaingdl