Font ottici

L’Adobe ha realizzato diversi caratteri reperibili in formato otf con corpo ottico:
http://www.adobe.com/type/topics/opticalsize.html
tutti con i quattro corpi (e solo quelli) che rilevi anche tu.
Allora ci sono dubbi, installo quelli. Grazie per la spiegazione

m

Ahimé, i guai non finiscono mai…
Ho installato l’Adobe Jenson Pro con la medesima procedura utilizzata
per l’installazione dell’Adobe Garamond Premier. Otfinfo mi conferma
l’esistenza del maiuscoletto, dei numeri minuscoli ecc
`root@debian:~# otfinfo -f /usr/local/texlive/texmf-local/source/fonts/jensonpro/AJensonPro-Regular.otf
aalt Access All Alternates
c2sc Small Capitals From Capitals
case Case-Sensitive Forms
cpsp Capital Spacing
dlig Discretionary Ligatures
dnom Denominators
frac Fractions
hist Historical Forms
kern Kerning
liga Standard Ligatures
lnum Lining Figures
numr Numerators
onum Oldstyle Figures
ordn Ordinals
ornm Ornaments
pnum Proportional Figures
sinf Scientific Inferiors
size Optical Size
smcp Small Capitals
sups Superscript
tnum Tabular Figures
zero Slashed Zero`
Eppure, al momento di compilare un testo con Xelatex (ea differenza del Garamond Premier),
i numeri minuscoli e il maiuscoletto risultano assenti (mentre con pdflatex è tutto regolare):
`* OpenType feature 'Numbers=OldStyle' (+onum) not available for font 'Adobe
* Jenson Pro' with script '' and language ''.
…
LaTeX Font Warning: Font shape `EU1/AdobeJensonPro(0)/m/sc' undefined
(Font) using `EU1/AdobeJensonPro(0)/m/n' instead on input line 24.`
La questione è misteriosa o si può formulare una diagnosi?

m

Risolto, era un problema di permessi. Ho “chmodato” i file a 644,
mentre prima non erano leggibili dagli utenti semplici.

Un dubbio finale: updmap-sys mi dà un sequenza di
`updmap: font GaramondPremrPro-Smbd-tlf-ly1–base is defined multiple times:
updmap: GaramondPremierPro.map (from /usr/local/texlive/texmf-local/web2c/updmap.cfg)
updmap: GaramondPremierPro (from /usr/local/texlive/2012/texmf-config/web2c/updmap.cfg) (used)`
Quale doppione cancello? Da un lato dovrei (credo) mantere la prima versione, nell’albero personale,
però il messaggio mi suggerisce che ad essere usata è la seconda…

m

A dire il vero in questo caso ho lasciato fare tutto a autoinst…
Allora da dove devo togliere a mano? Da /usr/local/texlive/2012/
o da /usr/local/texlive/texmf-local/ ? A me, trattandosi di caratteri
da me aggiunti, parrebbe pià corretto togliere da /usr/local/texlive/2012/…

m

Eliminate le voci doppi nel file in /usr/local/texlive/2012/…,
in modo che le map dei caratteri da me installati rimangano
in /usr/local/texlive/texmf-local/, nel caso di aggiornamenti
o reinstallazioni. Tutto funziona.

Un nuovo dubbio. Peraltro, mi spiace invadere il forum
con questi thread sui font, ma nello specifico mi pare
sia un tema qui mai trattato finora, così magari potranno
risultare utili a qualcun altro. Ho un problema coni MinionPro,
versione a corpi (4) ottici. Durante l’installazione con autoinst,
a differenza di quanto accaduto con altri font sempre
con (4) corpi ottici, ricevo il messaggio che il programma
non riesce a gestire tutti i file del font in un unico file map,
e ne produce quattro distinti, uno normale, uno capt, uno
subhead e uno disp. Vorrei capire se, caricando in un file
`\setmainfont[Ligatures=TeX,Numbers=OldStyle,Scale=1.1]{Minion Pro}`
Xelatex è in grado di usare tutti e quattro i tipi,
o se a questo punto riduce o aumenta solo il tipo “normale”.
Da cosa lo capisco?

m

Scusa, ma non capisco bene.
Siamo d’accordo, autoinst installa gli otf. Xelatex gli usa.
Io intendevo chiedere se il fatto che MinioPro
abbia ben quattro file map, uno per dimensione,
può impedire a Xelatex di usarli tutti
a seconda delle dimensioni del carattere
che impostonel file da comporre.
Dalla tua risposta mi par di capire che Xelatex
non ha bisogno di queste map per gestire
adeguatamente le dimensioni del font…
E se compilo con pdflatex? L’esistenza
di queste quattro mappe lo confonde?

m

Ah, chiarissimo!

Ma se uso i font con pdflatex e imposto
`\usepackage{MinionPro}`
pdflatex prende semplicemente MinionPro.map
aumentando e diminuendo i carattere
o, a seconda della dimensione del carattere richiesta,
ricorre anche a MinioProCaption.map ecc ?

m

Messi a letto i bimbi, ho fatto una prova con questo codice:
`\documentclass[a4paper,12pt]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[italian]{babel}
\usepackage{MinionPro}
\usepackage{microtype}

\begin{document}

normale

\small{poi lkj èpoèpo nbvbnv}

\footnotetext{poi lkj èpoèpo nbvbnv}

\large{poi lkj èpoèpo nbvbnv}

\Huge{poi lkj èpoèpo nbvbnv}

\end{document}`
e leggo nel log:
`LaTeX Font Info: External font `cmex10' loaded for size
(Font) <7> on input line 14.
LaTeX Font Info: External font `cmex10' loaded for size
(Font) <5> on input line 14.
LaTeX Font Info: Font shape `LY1/MinionPro-OsF/m/n' will be
(Font) scaled to size 7.0pt on input line 14.
LaTeX Font Info: Font shape `LY1/MinionPro-OsF/m/n' will be
(Font) scaled to size 14.4pt on input line 16.
LaTeX Font Info: Font shape `LY1/MinionPro-OsF/m/n' will be
(Font) scaled to size 24.88pt on input line 18.`
Naturalmente, potrei aver capito tutto sbagliato,
ma non mi pare utilizzi i vari tipi di font, e che si limiti invece
a scalare il Minion normale…

m

Innanzitutto:
`root@debian:~# locate pdftex.map
/usr/local/texlive/2012/texmf/fonts/map/pdftex/updmap/pdftex.map
/usr/local/texlive/2012/texmf-var/fonts/map/pdftex/updmap/pdftex.map`
Normale avere due pdftex.map?

Iin ogni caso dentro ci sono tutti i Minion nei vari tipi (Caption ecc)
Ho cancellato l’installazione precedente che mi dava qualche problema.
La cosa (per me) un po’ strana rispetto ai font ottici precedenti
è cha ll’inizio della compilazione appare:
`root@debian:/usr/local/texlive/texmf-local/fonts/source/MinionPro# autoinst -target=/usr/local/texlive/texmf-local *.otf
[WARNING] I've parsed both MinionPro-BoldCapt.otf
and MinionPro-BoldDisp.otf as

Family: MinionPro
Width: regular
Weight: bold
Shape: roman
Size: 8.4-13

[WARNING] I've parsed both MinionPro-BoldItCapt.otf
and MinionPro-BoldItDisp.otf as

Family: MinionPro
Width: regular
Weight: bold
Shape: italic
Size: 8.4-13

[WARNING] I've parsed both MinionPro-BoldItCapt.otf
and MinionPro-BoldIt.otf as

Family: MinionPro
Width: regular
Weight: bold
Shape: italic
Size: 8.4-13
.
.
.
[WARNING] I failed to parse all fonts in a unique way, so I will split
your font family into multiple subfamilies and try again:

MinionPro, MinionProCaption, MinionProDisplay, MinionProSubhead`
e via dicendo. Di conseguenza vengono prodotti quattro distinti file di map,
e non uno solo e unitario come per gli altri caratteri ottici che ho installato,
(tutti disponibili nei quattro tipi normale, Caption, Display, Subhead) e cioè
MinionPro.map, MinioProCaption.Map ecc. In pdftex.map comunque
trovo tutto. A questo punto ho ricompilato l’esempio, ottenendo
un diverso output. Riporto il file di log (scusandomi per la lunghezza):
`This is XeTeX, Version 3.1415926-2.4-0.9998 (TeX Live 2012) (format=xelatex 2013.2.22) 8 APR 2013 13:25
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\l_fontspec_tmp_int=\count122
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\g__file_internal_ior=\read1
\g_fontspec_family_Minion Pro_int=\count123
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. fontspec info: “defining-font”
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. Font family 'MinionPro(0)' created for font 'Minion Pro' with options [].
.
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.
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. <->“Minion Pro/ICU:script=latn;language=DFLT;”
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. <->“Minion Pro/ICU:script=latn;language=DFLT;+smcp;”
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. <->“Minion Pro/B/ICU:script=latn;language=DFLT;”
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. <->“Minion Pro/B/ICU:script=latn;language=DFLT;+smcp;”
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. <->“Minion Pro/I/ICU:script=latn;language=DFLT;”
.
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. <->“Minion Pro/I/ICU:script=latn;language=DFLT;+smcp;”
.
. * 'bold italic' with NFSS spec.:
. <->“Minion Pro/BI/ICU:script=latn;language=DFLT;”
.
. * 'bold italic small caps' with NFSS spec.:
. <->“Minion Pro/BI/ICU:script=latn;language=DFLT;+smcp;”
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File: babelsh.def 2009/05/07 Babel common definitions for shorthands
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Package microtype Info: Loading configuration file microtype.cfg.

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File: microtype.cfg 2013/03/13 v2.5 microtype main configuration file (RS)
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\openout1 = `wwwww.aux'.

LaTeX Font Info: Checking defaults for OML/cmm/m/it on input line 8.
LaTeX Font Info: … okay on input line 8.
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LaTeX Font Info: … okay on input line 8.
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LaTeX Font Info: … okay on input line 8.
LaTeX Font Info: Checking defaults for OMS/cmsy/m/n on input line 8.
LaTeX Font Info: … okay on input line 8.
LaTeX Font Info: Checking defaults for OMX/cmex/m/n on input line 8.
LaTeX Font Info: … okay on input line 8.
LaTeX Font Info: Checking defaults for U/cmr/m/n on input line 8.
LaTeX Font Info: … okay on input line 8.
LaTeX Font Info: Checking defaults for EU1/lmr/m/n on input line 8.
LaTeX Font Info: … okay on input line 8.
LaTeX Font Info: Checking defaults for T3/cmr/m/n on input line 8.
LaTeX Font Info: Try loading font information for T3+cmr on input line 8.
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File: t3cmr.fd 2001/12/31 TIPA font definitions
)
LaTeX Font Info: … okay on input line 8.
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. fontspec info: “setup-math”
.
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\symlegacymaths=\mathgroup4
LaTeX Font Info: Overwriting symbol font `legacymaths' in version `bold'
(Font) OT1/cmr/m/n –> OT1/cmr/bx/n on input line 8.
LaTeX Font Info: Redeclaring math accent \acute on input line 8.
LaTeX Font Info: Redeclaring math accent \grave on input line 8.
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LaTeX Font Info: Redeclaring math accent \dot on input line 8.
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LaTeX Font Info: Redeclaring math symbol \colon on input line 8.
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LaTeX Font Info: Redeclaring math symbol \Omega on input line 8.
LaTeX Font Info: Redeclaring math symbol \mathdollar on input line 8.
LaTeX Font Info: Redeclaring symbol font `operators' on input line 8.
LaTeX Font Info: Encoding `OT1' has changed to `EU1' for symbol font
(Font) `operators' in the math version `normal' on input line 8.
LaTeX Font Info: Overwriting symbol font `operators' in version `normal'
(Font) OT1/cmr/m/n –> EU1/MinionPro(0)/m/n on input line 8.
LaTeX Font Info: Encoding `OT1' has changed to `EU1' for symbol font
(Font) `operators' in the math version `bold' on input line 8.
LaTeX Font Info: Overwriting symbol font `operators' in version `bold'
(Font) OT1/cmr/bx/n –> EU1/MinionPro(0)/m/n on input line 8.
LaTeX Font Info: Overwriting symbol font `operators' in version `normal'
(Font) EU1/MinionPro(0)/m/n –> EU1/MinionPro(0)/m/n on input
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LaTeX Font Info: Overwriting math alphabet `\mathrm' in version `normal'
(Font) EU1/MinionPro(0)/m/n –> EU1/MinionPro(0)/m/n on input
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LaTeX Font Info: Overwriting math alphabet `\mathbf' in version `normal'
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LaTeX Font Info: Overwriting math alphabet `\mathsf' in version `normal'
(Font) OT1/cmss/m/n –> EU1/lmss/m/n on input line 8.
LaTeX Font Info: Overwriting math alphabet `\mathtt' in version `normal'
(Font) OT1/cmtt/m/n –> EU1/lmtt/m/n on input line 8.
LaTeX Font Info: Overwriting symbol font `operators' in version `bold'
(Font) EU1/MinionPro(0)/m/n –> EU1/MinionPro(0)/bx/n on input
line 8.
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(Font) EU1/MinionPro(0)/m/n –> EU1/MinionPro(0)/bx/n on input
line 8.
LaTeX Font Info: Overwriting math alphabet `\mathit' in version `bold'
(Font) OT1/cmr/bx/it –> EU1/MinionPro(0)/bx/it on input line
8.
LaTeX Font Info: Overwriting math alphabet `\mathsf' in version `bold'
(Font) OT1/cmss/bx/n –> EU1/lmss/bx/n on input line 8.
LaTeX Font Info: Overwriting math alphabet `\mathtt' in version `bold'
(Font) OT1/cmtt/m/n –> EU1/lmtt/bx/n on input line 8.
LaTeX Info: Redefining \microtypecontext on input line 8.
Package microtype Info: Character protrusion enabled (level 2).
Package microtype Info: Using default protrusion set `alltext'.
Package microtype Info: No adjustment of tracking.
Package microtype Info: No adjustment of spacing.
Package microtype Info: No adjustment of kerning.
Package microtype Info: Loading generic settings for font family
(microtype) `MinionPro' (encoding: EU1).
(microtype) For optimal results, create family-specific settings.
(microtype) See the microtype manual for details.
LaTeX Font Info: External font `cmex10' loaded for size
(Font) <7> on input line 18.
LaTeX Font Info: External font `cmex10' loaded for size
(Font) <5> on input line 18.

(/usr/local/texlive/2012/texmf-dist/tex/latex/microtype/mt-cmr.cfg
File: mt-cmr.cfg 2011/04/09 v2.1 microtype config. file: Computer Modern Roman
(RS)
) [1

]
(./wwwww.aux) )
Here is how much of TeX's memory you used:
15771 strings out of 493994
341634 string characters out of 3150335
364690 words of memory out of 3000000
18900 multiletter control sequences out of 15000+200000
4090 words of font info for 34 fonts, out of 3000000 for 9000
1144 hyphenation exceptions out of 8191
46i,7n,51p,821b,251s stack positions out of 5000i,500n,10000p,200000b,50000s

Output written on wwwww.pdf (1 page).`
Il precedente messaggio sulla scalatura del font è scomparso,
ma non so interpretare questo log per capire se vengono usati
i vari tipi di carattere per le diverse dimensioni

m

Ci sono!
`\documentclass[a4paper]{article}
\usepackage{fontspec}
\setmainfont[SizeFeatures={%
{Size={-8.4},Font=* Caption},
{Size={8.41-13.0},Font=*},
{Size={13.01-19.9},Font=* Subhead},
{Size={19.91-},Font=* Display}
}]{Minion Pro}

\usepackage{polyglossia}
\setmainlanguage{italian}
\begin{document}

{\fontsize{4}{8}\selectfont Testo piccolo: CAPTION\par}

{\fontsize{12}{24}\selectfont Testo normale: TEXT\par}

{\fontsize{16}{32}\selectfont Testo grande: SUBHEAD\par}

{\fontsize{36}{48}\selectfont Testo grandissimo: DISPLAY\par}

\end{document}`
È necessario richiedere a fontspec di usare corpi diversi, ma la cosa funziona.
Nelal fattispecie, ho usato le misure indicate dalla stessa Adobe per il Minion:
http://store1.adobe.com/cfusion/store/html/index.cfm?store=OLS-US&event=displayFontPackage&code=1721
Infatti, guardando le proprietà del pdf generato trovo:
`samiel@debian:~/guide_latex/xetex$ pdffonts opticalsize.pdf
name type emb sub uni object ID
———————————— —————– — — — ———
AVZBDA+MinionPro-Capt-Identity-H CID Type 0C yes yes yes 5 0
WSDHXQ+MinionPro-Subh-Identity-H CID Type 0C yes yes yes 7 0
RNQPRZ+MinionPro-Disp-Identity-H CID Type 0C yes yes yes 9 0
`
Non capisco bene come mai non sia indicato il carattere di default.
Ne viene forse omessa la menzione in quanto tale?

Mi lascia tuttavia un po’ perplesso un passo del manuale di fonspec (8.6) che recita:

OpenType fonts with optical scaling will exist in several discrete sizes, and these will
be selected by XETEX and LuaTEX automatically determined by the current font size as in
Example 16, in which we’ve scaled down some large text in order to be able to compare the
difference for equivalent font sizes.
The OpticalSize option may be used to specify a different optical size. With OpticalSize
set to zero, no optical size font substitution is performed, as shown in Example 17.

perché se non preciso le misure, almeno nel pdf risultante non vedo usati i vari corpi

PS
Mi resta il dubbio esposto nel post precedente:
normale avere due pdftex.map?

m

.

Samiel, come te lo devo dire: pdftex.map non ha nulla a che vedere con Xe(La)Tex.

Ops, rimandato a settembre! 🙁
Non so quale mossa io possa aver fatto per avere due pdflatex.map, adesso vedo se sono uguali.

Cmq con Xelatex l’utilizzo delle diverse font size è in definitiva semplice.
Più complesso, o meglio farraginoso, mi pare con pdflatex, per il quale
si dovrebbe credo approntare una serie di dichirazioni come questa, trovata in rete
`\DeclareFontFamily{T1}{lmr}{}
\DeclareFontShape{T1}{lmr}{m}{n}{<->ec-lmr17}{}
\DeclareFontShape{T1}{lmr}{m}{sl}{<->ec-lmro17}{}
\DeclareFontShape{T1}{lmr}{m}{it}{<->ec-lmri12}{}
\DeclareFontShape{T1}{lmr}{m}{sc}{<->ec-lmcsc10}{}
\DeclareFontShape{T1}{lmr}{bx}{n}{<->ec-lmbx12}{}
\DeclareFontShape{T1}{lmr}{bx}{it}{<->ec-lmbxi10}{}
\DeclareFontShape{T1}{lmr}{bx}{sl}{<->ec-lmbxo10}{}`

m

Capito! Nel prossimi giorni sarà difficile,
ma conto di svolgere questo esercizio.
Vero, basta sfruttare gli .fd. La teoria è chiara,
poi nell’applicazione bisogna vedere cosa combino.
Ma mi cimenterò senz’altro appena possibile.

mi stupisco che autoinst non abbia preparato
quei file .fd secondo quelle linee

I file .fd ci sono, adesso li confronto col modello
presente in “Font e tipografia” (2.4)

grazie ancora
m