前回、PostScript ファイルを実行できる Ghostscript (Windows 版の gswin64c) で、mystical.ps を使用して PostScript のプログラムを魔法陣の画像に変換する際に -dNOSAFER, -sDEVICE, -sOutputFile オプションを用いた理由や、画像に変換するサンプルとして同梱の examples.ps が適していることなどについて、調べてわかったことを前回の記事の補足として紹介します。
※試しながらわかったことを記述している部分もあるので、我流の手順とその結果としてお読みください。
※ gs10.05.1 を使用します。
※ 2025 年 05 月 24 日に GitHub で公開されている mystical_ps, dmmlib リポジトリの複製を使用しています。
前回の記事
前回は、プログラムを、関数や型に応じて、魔法陣の画像に変換する Mystical を Windows で実行する手順を紹介しました。
今回は、その際に紹介した以下のコマンドのオプションの必要性などについて説明します。
gswin64c -dNOSAFER -sDEVICE=png16m -sOutputFile=output.png mystical.ps examples.ps
訂正
紹介した以下のコマンドでも、魔法陣の画像をファイルに保存できます。
gswin64c -dNOSAFER -sDEVICE=png16m -sOutputFile=output.png mystical.ps examples.ps
しかし、examples.ps の内部で mystical.ps を用いているため、 mystical.ps を指定する必要はありませんでした。
以下のコマンドで、Ghostscript Image ウィンドウに、生成した魔法陣の画像が表示できます。
gswin64c -dNOSAFER examples.ps
以下のコマンドで、生成した魔法陣の画像を output.png ファイルに保存できます。
gswin64c -dNOSAFER -sDEVICE=png16m -sOutputFile=output.png examples.ps
テストに用いるファイルは examples.ps を選択
examples/quicksort.ps ファイルから魔法陣の画像を作成しようと思い、以下のコマンドを実行しました。
gswin64c -dNOSAFER -sDEVICE=pngalpha -sOutputFile="output.png" mystical.ps examples/quicksort.ps
実行すると、エラーは起きませんでしたが、ファイルが出力されません。
-dDEBUG オプションを付けて以下のコマンドを実行すると、詳細なログを出力しながら実行すると、最後の方で runEPS: Not DSC と表示されています。
gswin64c -dDEBUG -dNOSAFER -sDEVICE=pngalpha -sOutputFile="output.png" mystical.ps examples/quicksort.ps
g:\Dev\Mistical\mystical_ps-main\mystical_ps-main>gswin64c -dDEBUG -dNOSAFER -sDEVICE=pngalpha -sOutputFile="output.png" mystical.ps examples/quicksort.ps
START 0 1471344 173473 1310608 29620 true 556 3 <0>
GPL Ghostscript 10.05.1 (2025-04-29)
Copyright (C) 2025 Artifex Software, Inc. All rights reserved.
This software is supplied under the GNU AGPLv3 and comes with NO WARRANTY:
see the file COPYING for details.
END PROCS 0 1540376 228013 1330808 36140 true 665 3 <0>
END FONTDIR/ENCS 0 1548808 254022 1330808 38620 true 675 3 <0>
END DEVS 0 1588080 293507 1330808 38620 true 679 3 <0>
END STATD 15 1608280 310040 1330808 41500 true 684 3 <0>
END GS_FONTS 15 1687264 387970 1330808 41500 true 713 3 <0>
END BASIC COLOR 15 1707464 397271 1330808 41500 true 729 3 <0>
END IMAGE 15 1707464 404906 1330808 41500 true 734 3 <0>
BEGIN RESOURCES 15 2489984 1146885 1435912 147300 true 755 4 <0>
END CATEGORY 15 2489984 1150812 1435912 147588 true 756 5 <0>
END GENERIC 15 2499936 1171120 1435912 147588 true 758 4 <0>
END FIXED 15 2520136 1188331 1435912 147588 true 758 4 <0>
END MISC 15 2540336 1203347 1435912 147588 true 758 4 <0>
END ENCODING 15 2621136 1279945 1435912 151218 true 758 4 <0>
Extend MacRomanEncodingForTrueType for TrueType: insert /partialdiff @ 182
Extend MacRomanEncodingForTrueType for TrueType: insert /greaterequal @ 179
Extend MacRomanEncodingForTrueType for TrueType: insert /Delta @ 198
Extend MacRomanEncodingForTrueType for TrueType: insert /lessequal @ 178
Extend MacRomanEncodingForTrueType for TrueType: insert /infinity @ 176
Extend MacRomanEncodingForTrueType for TrueType: insert /integral @ 186
Extend MacRomanEncodingForTrueType for TrueType: cannot insert /Euro @ 219 used for /currency
Extend MacRomanEncodingForTrueType for TrueType: insert /apple @ 240
Extend MacRomanEncodingForTrueType for TrueType: insert /notequal @ 173
Extend MacRomanEncodingForTrueType for TrueType: insert /summation @ 183
Extend MacRomanEncodingForTrueType for TrueType: insert /approxequal @ 197
Extend MacRomanEncodingForTrueType for TrueType: insert /radical @ 195
Extend MacRomanEncodingForTrueType for TrueType: insert /lozenge @ 215
Extend MacRomanEncodingForTrueType for TrueType: insert /Omega @ 189
Extend MacRomanEncodingForTrueType for TrueType: insert /pi @ 185
Extend MacRomanEncodingForTrueType for TrueType: insert /product @ 184
END INITFILES 15 3323488 1958640 1435912 153296 true 1003 4 <0>
D:\ProgramFiles\gs10.05.1\bin/Fontmap 15 3343688 1965194 1456112 158566 true 1004 4 <1>
D:\ProgramFiles\gs10.05.1\lib/Fontmap 15 3384088 1997227 1456112 158566 true 1004 4 <1>
D:\ProgramFiles\gs10.05.1\fonts/Fontmap 15 3384088 2007166 1456112 158566 true 1004 4 <1>
%rom%Resource/Init/Fontmap 15 3404288 2020540 1456112 158566 true 1004 4 <1>
%rom%lib/Fontmap 15 3424488 2040280 1456112 158566 true 1004 4 <1>
c:/gs/gs10.05.1/Resource/Init/Fontmap 15 3444688 2053649 1456112 158566 true 1004 4 <1>
c:/gs/gs10.05.1/lib/Fontmap 15 3444688 2063576 1456112 158566 true 1004 4 <1>
c:/gs/gs10.05.1/Resource/Font/Fontmap 15 3464888 2076961 1456112 158566 true 1004 4 <1>
c:/gs/fonts/Fontmap 15 3485088 2090312 1456112 158566 true 1004 4 <1>
END FONTS 15 3485088 2100317 1456112 158566 true 1003 4 <0>
END DEVICE 15 3505288 2109600 1454168 156622 true 1006 4 <0>
END CONFIG 15 3505288 2109866 1454168 156622 true 1006 4 <0>
END INIT 31 3545688 2149122 2874240 1576398 true 1019 4 <0>
END GLOBAL 31 3545688 2153168 2874240 1578710 false 1018 4 <0>
END GC 31 3439768 1915269 2877512 1567890 false 756 3 <0>
runEPS: Not DSC
runEPS: Not DSC
runEPS: Not DSC
runEPS: Not DSC
runEPS: Not DSC
runEPS: Not DSC
resmp FindResource beg Zapf-Chancery
Querying operating system for font files...
cidcm GetCIDSystemInfo beg
resmp ResourceStatus beg /Zapf
resmp ResourceFileName beg Zapf
resmp ResourceFileName : have NO map record.
resmp ResourceFileName : retrieving %rom%Resource/CIDFont/Zapf
resmp ResourceFileName end
resmp ResourceStatus end
cidcm GetCIDSystemInfo end
cidcm GetCIDSystemInfo beg
resmp ResourceStatus beg /Zapf
resmp ResourceFileName beg Zapf
resmp ResourceFileName : have NO map record.
resmp ResourceFileName : retrieving %rom%Resource/CIDFont/Zapf
resmp ResourceFileName end
resmp ResourceStatus end
cidcm GetCIDSystemInfo end
resmp ResourceStatus beg /Zapf-Chancery
cidcm GetCIDSystemInfo beg
resmp ResourceStatus beg /Zapf
resmp ResourceFileName beg Zapf
resmp ResourceFileName : have NO map record.
resmp ResourceFileName : retrieving %rom%Resource/CIDFont/Zapf
resmp ResourceFileName end
resmp ResourceStatus end
cidcm GetCIDSystemInfo end
resmp ResourceStatus end
Can't find (or can't open) font file %rom%Resource/Font/%rom%Resource.
Can't find (or can't open) font file Zapf-Chancery.
Didn't find this font on the system!
Substituting font ZapfChancery-MediumItalic for Zapf-Chancery.
resmp FindResource beg ZapfChancery-MediumItalic
resmp ResourceStatus beg /ZapfChancery-MediumItalic
resmp ResourceStatus end
Loading Z003-MediumItalic font from %rom%Resource/Font/Z003-MediumItalic...
FAPIhook Z003-MediumItalic
FAPIhook is in .loadfont context for the font Font Z003-MediumItalic.
Trying to render the font Font Z003-MediumItalic with FAPI...
Font Z003-MediumItalic is being rendered with FAPI=FreeType
runEPS: Not DSC
3484832 2160703 3177240 1875831 1 done.
setting alias: /Kcedilla to be the same as glyph: /Kcommaaccent
setting alias: /Dzecyrillic to be the same as glyph: /afii10054
setting alias: /numero to be the same as glyph: /afii61352
setting alias: /Ldotaccent to be the same as glyph: /Ldot
setting alias: /kacyrillic to be the same as glyph: /afii10076
setting alias: /elcyrillic to be the same as glyph: /afii10077
setting alias: /emcyrillic to be the same as glyph: /afii10078
setting alias: /encyrillic to be the same as glyph: /afii10079
setting alias: /ocyrillic to be the same as glyph: /afii10080
setting alias: /escyrillic to be the same as glyph: /afii10083
setting alias: /tecyrillic to be the same as glyph: /afii10084
setting alias: /ucyrillic to be the same as glyph: /afii10085
setting alias: /Elcyrillic to be the same as glyph: /afii10029
setting alias: /efcyrillic to be the same as glyph: /afii10086
setting alias: /khacyrillic to be the same as glyph: /afii10087
setting alias: /tsecyrillic to be the same as glyph: /afii10088
setting alias: /iacyrillic to be the same as glyph: /afii10097
setting alias: /Lcedilla to be the same as glyph: /Lcommaaccent
setting alias: /Ostrokeacute to be the same as glyph: /Oslashacute
setting alias: /gheupturncyrillic to be the same as glyph: /afii10098
setting alias: /djecyrillic to be the same as glyph: /afii10099
setting alias: /blackuppointingtriangle to be the same as glyph: /triagup
setting alias: /ecyrillic to be the same as glyph: /afii10101
setting alias: /dzecyrillic to be the same as glyph: /afii10102
setting alias: /icyrillic to be the same as glyph: /afii10103
setting alias: /jecyrillic to be the same as glyph: /afii10105
setting alias: /ljecyrillic to be the same as glyph: /afii10106
setting alias: /njecyrillic to be the same as glyph: /afii10107
setting alias: /odblacute to be the same as glyph: /ohungarumlaut
setting alias: /tshecyrillic to be the same as glyph: /afii10108
setting alias: /Kacyrillic to be the same as glyph: /afii10028
setting alias: /checyrillic to be the same as glyph: /afii10089
setting alias: /shacyrillic to be the same as glyph: /afii10090
setting alias: /schwacyrillic to be the same as glyph: /afii10846
setting alias: /iishortcyrillic to be the same as glyph: /afii10075
setting alias: /shadelight to be the same as glyph: /ltshade
setting alias: /gjecyrillic to be the same as glyph: /afii10100
setting alias: /yicyrillic to be the same as glyph: /afii10104
setting alias: /kjecyrillic to be the same as glyph: /afii10109
setting alias: /ushortcyrillic to be the same as glyph: /afii10110
setting alias: /blackrightpointingpointer to be the same as glyph: /triagrt
setting alias: /blackrectangle to be the same as glyph: /filledrect
setting alias: /gdot to be the same as glyph: /gdotaccent
setting alias: /Iishortcyrillic to be the same as glyph: /afii10027
setting alias: /ncedilla to be the same as glyph: /ncommaaccent
setting alias: /blackleftpointingpointer to be the same as glyph: /triaglf
setting alias: /blacksquare to be the same as glyph: /filledbox
setting alias: /dbllowline to be the same as glyph: /underscoredbl
setting alias: /Iicyrillic to be the same as glyph: /afii10026
setting alias: /blackdownpointingtriangle to be the same as glyph: /triagdn
setting alias: /gcedilla to be the same as glyph: /gcommaaccent
setting alias: /mars to be the same as glyph: /male
setting alias: /Zecyrillic to be the same as glyph: /afii10025
setting alias: /shadedark to be the same as glyph: /dkshade
setting alias: /dmacron to be the same as glyph: /dcroat
setting alias: /Zhecyrillic to be the same as glyph: /afii10024
setting alias: /Zdot to be the same as glyph: /Zdotaccent
setting alias: /Iocyrillic to be the same as glyph: /afii10023
setting alias: /eighthnotebeamed to be the same as glyph: /musicalnotedbl
setting alias: /Iecyrillic to be the same as glyph: /afii10022
setting alias: /edot to be the same as glyph: /edotaccent
setting alias: /Decyrillic to be the same as glyph: /afii10021
setting alias: /slong to be the same as glyph: /longs
setting alias: /Gecyrillic to be the same as glyph: /afii10020
setting alias: /Vecyrillic to be the same as glyph: /afii10019
setting alias: /quoterightn to be the same as glyph: /napostrophe
setting alias: /whitesmallsquare to be the same as glyph: /H18551
setting alias: /venus to be the same as glyph: /female
setting alias: /Becyrillic to be the same as glyph: /afii10018
setting alias: /whitecircle to be the same as glyph: /circle
setting alias: /blacksmallsquare to be the same as glyph: /H18543
setting alias: /dialytikatonos to be the same as glyph: /dieresistonos
setting alias: /Acyrillic to be the same as glyph: /afii10017
setting alias: /blackcircle to be the same as glyph: /H18533
setting alias: /horizontalbar to be the same as glyph: /afii00208
setting alias: /ostrokeacute to be the same as glyph: /oslashacute
setting alias: /udblacute to be the same as glyph: /uhungarumlaut
setting alias: /Udblacute to be the same as glyph: /Uhungarumlaut
setting alias: /Ncedilla to be the same as glyph: /Ncommaaccent
setting alias: /Odblacute to be the same as glyph: /Ohungarumlaut
setting alias: /rightangle to be the same as glyph: /orthogonal
setting alias: /Rcedilla to be the same as glyph: /Rcommaaccent
setting alias: /whitebullet to be the same as glyph: /openbullet
setting alias: /Idot to be the same as glyph: /Idotaccent
setting alias: /Tcedilla to be the same as glyph: /Tcommaaccent
setting alias: /Edot to be the same as glyph: /Edotaccent
setting alias: /Gjecyrillic to be the same as glyph: /afii10052
setting alias: /careof to be the same as glyph: /afii61248
setting alias: /iicyrillic to be the same as glyph: /afii10074
setting alias: /iucyrillic to be the same as glyph: /afii10096
setting alias: /Djecyrillic to be the same as glyph: /afii10051
setting alias: /blacksmilingface to be the same as glyph: /invsmileface
setting alias: /whitesmilingface to be the same as glyph: /smileface
setting alias: /zecyrillic to be the same as glyph: /afii10073
setting alias: /Gheupturncyrillic to be the same as glyph: /afii10050
setting alias: /euro to be the same as glyph: /Euro
setting alias: /whitecircleinverse to be the same as glyph: /invcircle
setting alias: /zhecyrillic to be the same as glyph: /afii10072
setting alias: /ereversedcyrillic to be the same as glyph: /afii10095
setting alias: /softsigncyrillic to be the same as glyph: /afii10094
setting alias: /IAcyrillic to be the same as glyph: /afii10049
setting alias: /bulletinverse to be the same as glyph: /invbullet
setting alias: /dzhecyrillic to be the same as glyph: /afii10193
setting alias: /iocyrillic to be the same as glyph: /afii10071
setting alias: /thetasymbolgreek to be the same as glyph: /theta1
setting alias: /overscore to be the same as glyph: /macron
setting alias: /IUcyrillic to be the same as glyph: /afii10048
setting alias: /iecyrillic to be the same as glyph: /afii10070
setting alias: /hardsigncyrillic to be the same as glyph: /afii10092
setting alias: /Ereversedcyrillic to be the same as glyph: /afii10047
setting alias: /yericyrillic to be the same as glyph: /afii10093
setting alias: /decyrillic to be the same as glyph: /afii10069
setting alias: /ilde to be the same as glyph: /tilde
setting alias: /nabla to be the same as glyph: /gradient
setting alias: /shchacyrillic to be the same as glyph: /afii10091
setting alias: /afii08941 to be the same as glyph: /lira
setting alias: /Softsigncyrillic to be the same as glyph: /afii10046
setting alias: /rcedilla to be the same as glyph: /rcommaaccent
setting alias: /cdot to be the same as glyph: /cdotaccent
setting alias: /arrowupdownbase to be the same as glyph: /arrowupdnbse
setting alias: /Gdot to be the same as glyph: /Gdotaccent
setting alias: /Yericyrillic to be the same as glyph: /afii10045
setting alias: /compass to be the same as glyph: /sun
setting alias: /notelementof to be the same as glyph: /notelement
setting alias: /Dzhecyrillic to be the same as glyph: /afii10145
setting alias: /Hardsigncyrillic to be the same as glyph: /afii10044
setting alias: /pisymbolgreek to be the same as glyph: /omega1
setting alias: /becyrillic to be the same as glyph: /afii10066
setting alias: /vecyrillic to be the same as glyph: /afii10067
setting alias: /Gcedilla to be the same as glyph: /Gcommaaccent
setting alias: /quoteleftreversed to be the same as glyph: /quotereversed
setting alias: /Shchacyrillic to be the same as glyph: /afii10043
setting alias: /increment to be the same as glyph: /Delta
setting alias: /subsetorequal to be the same as glyph: /reflexsubset
setting alias: /Shacyrillic to be the same as glyph: /afii10042
setting alias: /logicalnotreversed to be the same as glyph: /revlogicalnot
setting alias: /subset to be the same as glyph: /propersubset
setting alias: /zdot to be the same as glyph: /zdotaccent
setting alias: /Checyrillic to be the same as glyph: /afii10041
setting alias: /Tsecyrillic to be the same as glyph: /afii10040
setting alias: /Ushortcyrillic to be the same as glyph: /afii10062
setting alias: /spacehackarabic to be the same as glyph: /space
setting alias: /supersetorequal to be the same as glyph: /reflexsuperset
setting alias: /Khacyrillic to be the same as glyph: /afii10039
setting alias: /approximatelyequal to be the same as glyph: /congruent
setting alias: /superset to be the same as glyph: /propersuperset
setting alias: /Kjecyrillic to be the same as glyph: /afii10061
setting alias: /Efcyrillic to be the same as glyph: /afii10038
setting alias: /acyrillic to be the same as glyph: /afii10065
setting alias: /Tshecyrillic to be the same as glyph: /afii10060
setting alias: /gecyrillic to be the same as glyph: /afii10068
setting alias: /ercyrillic to be the same as glyph: /afii10082
setting alias: /tcedilla to be the same as glyph: /tcommaaccent
setting alias: /Ucyrillic to be the same as glyph: /afii10037
setting alias: /Njecyrillic to be the same as glyph: /afii10059
setting alias: /pecyrillic to be the same as glyph: /afii10081
setting alias: /spadesuitblack to be the same as glyph: /spade
setting alias: /Tecyrillic to be the same as glyph: /afii10036
setting alias: /thereexists to be the same as glyph: /existential
setting alias: /Ljecyrillic to be the same as glyph: /afii10058
setting alias: /dblarrowright to be the same as glyph: /arrowdblright
setting alias: /verticalbar to be the same as glyph: /bar
setting alias: /integralbottom to be the same as glyph: /integralbt
setting alias: /Escyrillic to be the same as glyph: /afii10035
setting alias: /heartsuitblack to be the same as glyph: /heart
setting alias: /forall to be the same as glyph: /universal
setting alias: /Jecyrillic to be the same as glyph: /afii10057
setting alias: /mu1 to be the same as glyph: /mu
setting alias: /Ercyrillic to be the same as glyph: /afii10034
setting alias: /Yicyrillic to be the same as glyph: /afii10056
setting alias: /middot to be the same as glyph: /periodcentered
setting alias: /kcedilla to be the same as glyph: /kcommaaccent
setting alias: /timescircle to be the same as glyph: /circlemultiply
setting alias: /Dslash to be the same as glyph: /Dcroat
setting alias: /arrowleftdbl to be the same as glyph: /arrowdblleft
setting alias: /Pecyrillic to be the same as glyph: /afii10033
setting alias: /integraltop to be the same as glyph: /integraltp
setting alias: /phisymbolgreek to be the same as glyph: /phi1
setting alias: /clubsuitblack to be the same as glyph: /club
setting alias: /Icyrillic to be the same as glyph: /afii10055
setting alias: /dblarrowleft to be the same as glyph: /arrowdblboth
setting alias: /Ocyrillic to be the same as glyph: /afii10032
setting alias: /Cdot to be the same as glyph: /Cdotaccent
setting alias: /shademedium to be the same as glyph: /shade
setting alias: /ldotaccent to be the same as glyph: /ldot
setting alias: /Encyrillic to be the same as glyph: /afii10031
setting alias: /Ecyrillic to be the same as glyph: /afii10053
setting alias: /lsquare to be the same as glyph: /afii61289
setting alias: /lcedilla to be the same as glyph: /lcommaaccent
setting alias: /Emcyrillic to be the same as glyph: /afii10030
FAPIhook ZapfChancery-MediumItalic
Font ZapfChancery-MediumItalic is mapped to FAPI=FreeType
resmp FindResource end
FAPIhook Zapf-Chancery
Font Zapf-Chancery is mapped to FAPI=FreeType
resmp FindResource end
runEPS: Not DSC
runEPS: Not DSC
GS>quitそのあと、 examples/quicksort.ps ではなく、 examples.ps を実行したところ、魔法陣の画像が指定したファイル（例では output.png) に出力されました。
gswin64c -dDEBUG -dNOSAFER -sDEVICE=pngalpha -sOutputFile=”output.png” mystical.ps examples.ps
examples.ps と examples/quicksort.ps の内容を比較すると、 examples.ps には、 showpage や mystical.ps で定義されている executable_name の文字列が使われていました。
showpage は、それまでに描画した内容で、１ページ分の記述が終了したことを表します。
これによって、今まで描画した内容が１ページの画像として確定します。
様々な図形やテキストを記述した後、
showpageoperator を書くと、1ページ分の記述が終了します。
そのことから、おそらく、 examples/quicksort.ps ではなく examples.ps の方が、mystical.ps の機能を使った画像生成に適したスクリプトだと思われるので、example.ps を例に mystical.ps による画像変換を行うことにしました。
シンボリックリンクに対応した git clone で取得しないと機能しない
mystical_ps の直下に配置する dmmlib には、シンボリックリンクが含まれています。
Git for Windows のデフォルトの設定では、シンボリックリンクはサポートされず、シンボリックリンクを clone で取得すると、 lines/lines.ps のような相対パスが書かれたテキストファイルになってしまいます。
以下はシンボリックリンクに対応しない、デフォルトの設定で git clone コマンドで dmmlib を取得した際の、実行結果です。
ハイライトされている 23 行目で gswin64c で mystical.ps を実行すると、ハイライトされている 28 行目で Error: /undefined in lines と表示されてエラーが発生しています。
Microsoft Windows [Version 10.0.19045.5854]
(c) Microsoft Corporation. All rights reserved.
G:\Dev\Mistical\mystical_ps-main\mystical_ps-main>git clone https://github.com/denismm/dmmlib.git
Cloning into 'dmmlib'...
remote: Enumerating objects: 417, done.
remote: Counting objects: 100% (210/210), done.
remote: Compressing objects: 100% (126/126), done.
remote: Total 417 (delta 122), reused 166 (delta 80), pack-reused 207 (from 1)
Receiving objects: 100% (417/417), 859.91 KiB | 7.05 MiB/s, done.
Resolving deltas: 100% (218/218), done.
G:\Dev\Mistical\mystical_ps-main\mystical_ps-main>cd dmmlib
G:\Dev\Mistical\mystical_ps-main\mystical_ps-main\dmmlib>git status
On branch master
Your branch is up to date with 'origin/master'.
nothing to commit, working tree clean
G:\Dev\Mistical\mystical_ps-main\mystical_ps-main\dmmlib>cd ..
G:\Dev\Mistical\mystical_ps-main\mystical_ps-main>gswin64c -dNOSAFER -sDEVICE=png16m -sOutputFile=output.png mystical.ps examples.ps
GPL Ghostscript 10.05.1 (2025-04-29)
Copyright (C) 2025 Artifex Software, Inc. All rights reserved.
This software is supplied under the GNU AGPLv3 and comes with NO WARRANTY:
see the file COPYING for details.
Error: /undefined in lines
Operand stack:
Execution stack:
%interp_exit .runexec2 --nostringval-- --nostringval-- --nostringval-- 2 %stopped_push --nostringval-- --nostringval-- --nostringval-- false 1 %stopped_push 1949 1 3 %oparray_pop 1948 1 3 %oparray_pop 1933 1 3 %oparray_pop 1803 1 3 %oparray_pop --nostringval-- %errorexec_pop .runexec2 --nostringval-- --nostringval-- --nostringval-- 2 %stopped_push --nostringval-- 1949 1 3 %oparray_pop 1948 1 3 %oparray_pop 1933 1 3 %oparray_pop 1803 1 3 %oparray_pop --nostringval-- %errorexec_pop .runexec2 --nostringval-- --nostringval-- --nostringval-- 2 %stopped_push --nostringval--
Dictionary stack:
--dict:756/1123(ro)(G)-- --dict:0/20(G)-- --dict:187/200(L)--
Current allocation mode is local
Current file position is 5
GPL Ghostscript 10.05.1: Unrecoverable error, exit code 1
G:\Dev\Mistical\mystical_ps-main\mystical_ps-main>これは、本来シンボリックリンクである lines.ps が、 lines/lines.ps というリンク先の相対パスが書かれたテキストファイルに変わっていたために、 lines が読み込まれなかったために発生したエラーです。
シンボリックリンクに対応した git clone を行うと、 .symlink が作られ、シンボリックリンクとして機能し、先ほどのように Error: /undefined in lines というエラーは発生しません。
シンボリックリンクに対応した git clone で取得しないと機能しない問題とその対処例については、以下の記事を参照してください。
https://compota-soft.work/wp1/wp-admin/post.php?post=52144&action=edit
https://compota-soft.work/wp1/wp-admin/post.php?post=52290&action=edit
-dNOSAFER の必要性
-dNOSAFER を指定しないと Error: /invalidfileaccess in –run– というエラーメッセージが表示されます。
G:\Dev\Mistical\mystical_ps-main\mystical_ps-main>gswin64c mystical.ps examples.ps
GPL Ghostscript 10.05.1 (2025-04-29)
Copyright (C) 2025 Artifex Software, Inc. All rights reserved.
This software is supplied under the GNU AGPLv3 and comes with NO WARRANTY:
see the file COPYING for details.
Error: /invalidfileaccess in --run--
Operand stack:
(dmmlib/base.ps) (r)
Execution stack:
%interp_exit .runexec2 --nostringval-- run --nostringval-- 2 %stopped_push --nostringval-- run run false 1 %stopped_push 1949 1 3 %oparray_pop 1948 1 3 %oparray_pop 1933 1 3 %oparray_pop 1803 1 3 %oparray_pop --nostringval-- %errorexec_pop .runexec2 --nostringval-- run --nostringval-- 2 %stopped_push --nostringval-- 1949 1 3 %oparray_pop run
Dictionary stack:
--dict:746/1123(ro)(G)-- --dict:0/20(G)-- --dict:85/200(L)--
Current allocation mode is local
Last OS error: Permission denied
Current file position is 24
GPL Ghostscript 10.05.1: Unrecoverable error, exit code 1-dNOSAFER オプションは、 GhostScrpt 9.50 以降にデフォルトになったファイルアクセス制御を抑制して、Error: /invalidfileaccess in –run– などのエラーを回避できます。
I use gv, which requires X and is only available on homebrew through a nonstandard cask, because I like its functionality much more than gsview, but in any case it’s useful to be able to interpret ps without generating a pdf. You will need to add the
-dNOSAFERoption to “gs options” in whatever tool you use.私は gv を使用します。これは X を必要とし、非標準カスクを介して homebrew でのみ利用可能です。これは、その機能が gsview よりもはるかに気に入っているためです。しかし、いずれにせよ、pdf を生成せずに ps を解釈できるのは便利です。 どのツールを使用する場合でも、「gs options」に「-dNOSAFER」オプションを追加する必要があります。mystical_ps/INSTALL.md at main · denismm/mystical_ps
Ghostscript 9.50 以降ではデフォルトでファイルアクセス制御が有効となったため，
USBメモリ活用講座【dviout for Windowsポータブル化】-dNOSAFERオプションが必要となりました． オプションを付けないと，PBM への変換処理に失敗して警告ダイアログボックスが表示されます．
-sDEVICE, -sOutputFile で画像をファイル出力
-sDEVICE オプションで生成する画像のフォーマットを、 -sOutputFile オプションで出力先のファイルパスを指定しないと、Ghostscript Image ウィンドウに表示されるだけで、ファイルに保存されません。
次に、 –sDEVICE に画像形式、 -sOutputFile にファイル出力先を指定したオプションを追加したコマンドを実行します。
※ examples.ps の内部で mystical.ps も実行されています。
gswin64c -dNOSAFER -sDEVICE=png16m -sOutputFile=output.png examples.ps
上記のコマンドを入力して showpage のタイミングでメッセージに従って Enter キーを押してから GS> のモードを quit で抜けます。
G:\Dev\Mistical\mystical_ps-main\mystical_ps-main>gswin64c -dNOSAFER -sDEVICE=png16m -sOutputFile=output.png examples.ps
GPL Ghostscript 10.05.1 (2025-04-29)
Copyright (C) 2025 Artifex Software, Inc. All rights reserved.
This software is supplied under the GNU AGPLv3 and comes with NO WARRANTY:
see the file COPYING for details.
Querying operating system for font files...
Can't find (or can't open) font file %rom%Resource/Font/%rom%Resource.
Can't find (or can't open) font file Zapf-Chancery.
Didn't find this font on the system!
Substituting font ZapfChancery-MediumItalic for Zapf-Chancery.
Loading Z003-MediumItalic font from %rom%Resource/Font/Z003-MediumItalic... 3484824 2160629 3177240 1882847 1 done.
>>showpage, press <return> to continue<<
GS>quit
G:\Dev\Mistical\mystical_ps-main\mystical_ps-main>フォルダを見ると、output.png ファイルが出力され、画像は先ほど Ghostscript Image ウィンドウで確認したものと同じでした。
まとめ
今回は、前回の補足として、mystical.ps を使用して PostScript のプログラムを魔法陣の画像に変換する際に用いた -dNOSAFER, -sDEVICE, -sOutputFile オプションを用いた理由や、画像に変換するサンプルとして同梱の examples.ps が適していることなどについて、調べてわかったことを前回の記事の補足として紹介しました。
参照サイト Thank You!
- denismm/mystical_ps
- mystical_ps/INSTALL.md at main · denismm/mystical_ps
- denismm/dmmlib: Library of convenient postscript functions
- Git
- Git – git-clone Documentation
- Git – git-status Documentation
- Ghostscript
- Ghostscript/使い方 – TeX Wiki
- USBメモリ活用講座【dviout for Windowsポータブル化】
- 魔法陣のようなプログラミング言語「Mystical」 – GIGAZINE
記事一覧 → Compota-Soft-Press
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