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HerokuのImageMagickでカスタムフォントを使用する

2016-05-02 13 views
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ImageMagickが必要なRailsアプリケーションにいくつかの機能を組み込んでいます。私は現在、画像の上にカスタムテキストをオーバーレイするためにRMagick gemを使用しています。私は、ユーザーが選択できるフォントを選択できるようにしたいと思っていますが、GhostScriptに付属しているフォントのストックセット（自分のシステム上にあるもの）をかなり制限しています。HerokuのImageMagickでカスタムフォントを使用する

私が知りたいのは、ImageMagickで使用するカスタムフォント（例：Lato）を、ローカルでもHerokuでもインポート/ロードできることです。具体的には、画像キャプションを作成しています（下のコードを参照）、リストにないフォントを指定できるようにしたいと考えています。

ここに私のサンプルコードは次のとおりです。

font = 'Lato' 
text = Magick::Image.read("caption:#{caption_text.to_s}") { 
    self.size = "#800x600" 
    self.colorspace = RGBColorspace 
    self.background_color = "Transparent" 
    self.depth = 8 
    self.format = 'PNG' 
    self.fill = '#333333' 
    self.font = font 
}.first

私はidentify -list fontを実行した場合、私はImageMagickのは、私のシステム上へのアクセス権を持っているフォントの次のリストを取得します。

➜ Desktop identify -list font 

Path: /usr/local/Cellar/imagemagick/6.9.3-0_2/etc/ImageMagick-6/type-ghostscript.xml 
    Font: AvantGarde-Book 
    family: AvantGarde 
    style: Normal 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/local/share/ghostscript/fonts/a010013l.pfb 
    Font: AvantGarde-BookOblique 
    family: AvantGarde 
    style: Oblique 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/local/share/ghostscript/fonts/a010033l.pfb 
    Font: AvantGarde-Demi 
    family: AvantGarde 
    style: Normal 
    stretch: Normal 
    weight: 600 
    glyphs: /usr/local/share/ghostscript/fonts/a010015l.pfb 
    Font: AvantGarde-DemiOblique 
    family: AvantGarde 
    style: Oblique 
    stretch: Normal 
    weight: 600 
    glyphs: /usr/local/share/ghostscript/fonts/a010035l.pfb 
    Font: Bookman-Demi 
    family: Bookman 
    style: Normal 
    stretch: Normal 
    weight: 600 
    glyphs: /usr/local/share/ghostscript/fonts/b018015l.pfb 
    Font: Bookman-DemiItalic 
    family: Bookman 
    style: Italic 
    stretch: Normal 
    weight: 600 
    glyphs: /usr/local/share/ghostscript/fonts/b018035l.pfb 
    Font: Bookman-Light 
    family: Bookman 
    style: Normal 
    stretch: Normal 
    weight: 300 
    glyphs: /usr/local/share/ghostscript/fonts/b018012l.pfb 
    Font: Bookman-LightItalic 
    family: Bookman 
    style: Italic 
    stretch: Normal 
    weight: 300 
    glyphs: /usr/local/share/ghostscript/fonts/b018032l.pfb 
    Font: Courier 
    family: Courier 
    style: Normal 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/local/share/ghostscript/fonts/n022003l.pfb 
    Font: Courier-Bold 
    family: Courier 
    style: Normal 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/local/share/ghostscript/fonts/n022004l.pfb 
    Font: Courier-BoldOblique 
    family: Courier 
    style: Oblique 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/local/share/ghostscript/fonts/n022024l.pfb 
    Font: Courier-Oblique 
    family: Courier 
    style: Oblique 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/local/share/ghostscript/fonts/n022023l.pfb 
    Font: fixed 
    family: Helvetica 
    style: Normal 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/local/share/ghostscript/fonts/n019003l.pfb 
    Font: Helvetica 
    family: Helvetica 
    style: Normal 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/local/share/ghostscript/fonts/n019003l.pfb 
    Font: Helvetica-Bold 
    family: Helvetica 
    style: Normal 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/local/share/ghostscript/fonts/n019004l.pfb 
    Font: Helvetica-BoldOblique 
    family: Helvetica 
    style: Italic 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/local/share/ghostscript/fonts/n019024l.pfb 
    Font: Helvetica-Narrow 
    family: Helvetica Narrow 
    style: Normal 
    stretch: Condensed 
    weight: 400 
    glyphs: /usr/local/share/ghostscript/fonts/n019043l.pfb 
    Font: Helvetica-Narrow-Bold 
    family: Helvetica Narrow 
    style: Normal 
    stretch: Condensed 
    weight: 700 
    glyphs: /usr/local/share/ghostscript/fonts/n019044l.pfb 
    Font: Helvetica-Narrow-BoldOblique 
    family: Helvetica Narrow 
    style: Oblique 
    stretch: Condensed 
    weight: 700 
    glyphs: /usr/local/share/ghostscript/fonts/n019064l.pfb 
    Font: Helvetica-Narrow-Oblique 
    family: Helvetica Narrow 
    style: Oblique 
    stretch: Condensed 
    weight: 400 
    glyphs: /usr/local/share/ghostscript/fonts/n019063l.pfb 
    Font: Helvetica-Oblique 
    family: Helvetica 
    style: Italic 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/local/share/ghostscript/fonts/n019023l.pfb 
    Font: NewCenturySchlbk-Bold 
    family: NewCenturySchlbk 
    style: Normal 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/local/share/ghostscript/fonts/c059016l.pfb 
    Font: NewCenturySchlbk-BoldItalic 
    family: NewCenturySchlbk 
    style: Italic 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/local/share/ghostscript/fonts/c059036l.pfb 
    Font: NewCenturySchlbk-Italic 
    family: NewCenturySchlbk 
    style: Italic 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/local/share/ghostscript/fonts/c059033l.pfb 
    Font: NewCenturySchlbk-Roman 
    family: NewCenturySchlbk 
    style: Normal 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/local/share/ghostscript/fonts/c059013l.pfb 
    Font: Palatino-Bold 
    family: Palatino 
    style: Normal 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/local/share/ghostscript/fonts/p052004l.pfb 
    Font: Palatino-BoldItalic 
    family: Palatino 
    style: Italic 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/local/share/ghostscript/fonts/p052024l.pfb 
    Font: Palatino-Italic 
    family: Palatino 
    style: Italic 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/local/share/ghostscript/fonts/p052023l.pfb 
    Font: Palatino-Roman 
    family: Palatino 
    style: Normal 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/local/share/ghostscript/fonts/p052003l.pfb 
    Font: Symbol 
    family: Symbol 
    style: Normal 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/local/share/ghostscript/fonts/s050000l.pfb 
    Font: Times-Bold 
    family: Times 
    style: Normal 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/local/share/ghostscript/fonts/n021004l.pfb 
    Font: Times-BoldItalic 
    family: Times 
    style: Italic 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/local/share/ghostscript/fonts/n021024l.pfb 
    Font: Times-Italic 
    family: Times 
    style: Italic 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/local/share/ghostscript/fonts/n021023l.pfb 
    Font: Times-Roman 
    family: Times 
    style: Normal 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/local/share/ghostscript/fonts/n021003l.pfb

私はHerokuの上のbashを実行する場合、私は次のリストを取得する：

➜ Desktop heroku run bash 
Running bash on staging-myapp... up, run.5220 
~ $ identify -list font 

Path: /etc/ImageMagick/type-ghostscript.xml 
    Font: AvantGarde-Book 
    family: AvantGarde 
    style: Normal 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/a010013l.pfb 
    Font: AvantGarde-BookOblique 
    family: AvantGarde 
    style: Oblique 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/a010033l.pfb 
    Font: AvantGarde-Demi 
    family: AvantGarde 
    style: Normal 
    stretch: Normal 
    weight: 600 
    glyphs: /usr/share/fonts/type1/gsfonts/a010015l.pfb 
    Font: AvantGarde-DemiOblique 
    family: AvantGarde 
    style: Oblique 
    stretch: Normal 
    weight: 600 
    glyphs: /usr/share/fonts/type1/gsfonts/a010035l.pfb 
    Font: Bookman-Demi 
    family: Bookman 
    style: Normal 
    stretch: Normal 
    weight: 600 
    glyphs: /usr/share/fonts/type1/gsfonts/b018015l.pfb 
    Font: Bookman-DemiItalic 
    family: Bookman 
    style: Italic 
    stretch: Normal 
    weight: 600 
    glyphs: /usr/share/fonts/type1/gsfonts/b018035l.pfb 
    Font: Bookman-Light 
    family: Bookman 
    style: Normal 
    stretch: Normal 
    weight: 300 
    glyphs: /usr/share/fonts/type1/gsfonts/b018012l.pfb 
    Font: Bookman-LightItalic 
    family: Bookman 
    style: Italic 
    stretch: Normal 
    weight: 300 
    glyphs: /usr/share/fonts/type1/gsfonts/b018032l.pfb 
    Font: Courier 
    family: Courier 
    style: Normal 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/n022003l.pfb 
    Font: Courier-Bold 
    family: Courier 
    style: Normal 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/n022004l.pfb 
    Font: Courier-BoldOblique 
    family: Courier 
    style: Oblique 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/n022024l.pfb 
    Font: Courier-Oblique 
    family: Courier 
    style: Oblique 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/n022023l.pfb 
    Font: fixed 
    family: Helvetica 
    style: Normal 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/n019003l.pfb 
    Font: Helvetica 
    family: Helvetica 
    style: Normal 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/n019003l.pfb 
    Font: Helvetica-Bold 
    family: Helvetica 
    style: Normal 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/n019004l.pfb 
    Font: Helvetica-BoldOblique 
    family: Helvetica 
    style: Italic 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/n019024l.pfb 
    Font: Helvetica-Narrow 
    family: Helvetica Narrow 
    style: Normal 
    stretch: Condensed 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/n019043l.pfb 
    Font: Helvetica-Narrow-Bold 
    family: Helvetica Narrow 
    style: Normal 
    stretch: Condensed 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/n019044l.pfb 
    Font: Helvetica-Narrow-BoldOblique 
    family: Helvetica Narrow 
    style: Oblique 
    stretch: Condensed 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/n019064l.pfb 
    Font: Helvetica-Narrow-Oblique 
    family: Helvetica Narrow 
    style: Oblique 
    stretch: Condensed 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/n019063l.pfb 
    Font: Helvetica-Oblique 
    family: Helvetica 
    style: Italic 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/n019023l.pfb 
    Font: NewCenturySchlbk-Bold 
    family: NewCenturySchlbk 
    style: Normal 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/c059016l.pfb 
    Font: NewCenturySchlbk-BoldItalic 
    family: NewCenturySchlbk 
    style: Italic 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/c059036l.pfb 
    Font: NewCenturySchlbk-Italic 
    family: NewCenturySchlbk 
    style: Italic 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/c059033l.pfb 
    Font: NewCenturySchlbk-Roman 
    family: NewCenturySchlbk 
    style: Normal 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/c059013l.pfb 
    Font: Palatino-Bold 
    family: Palatino 
    style: Normal 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/p052004l.pfb 
    Font: Palatino-BoldItalic 
    family: Palatino 
    style: Italic 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/p052024l.pfb 
    Font: Palatino-Italic 
    family: Palatino 
    style: Italic 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/p052023l.pfb 
    Font: Palatino-Roman 
    family: Palatino 
    style: Normal 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/p052003l.pfb 
    Font: Symbol 
    family: Symbol 
    style: Normal 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/s050000l.pfb 
    Font: Times-Bold 
    family: Times 
    style: Normal 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/n021004l.pfb 
    Font: Times-BoldItalic 
    family: Times 
    style: Italic 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/n021024l.pfb 
    Font: Times-Italic 
    family: Times 
    style: Italic 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/n021023l.pfb 
    Font: Times-Roman 
    family: Times 
    style: Normal 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/n021003l.pfb 

Path: System Fonts 
    Font: Century-Schoolbook-Bold 
    family: Century Schoolbook 
    style: Normal 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/c059016l.pfb 
    Font: Century-Schoolbook-Bold-Italic 
    family: Century Schoolbook 
    style: Italic 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/c059036l.pfb 
    Font: Century-Schoolbook-Italic 
    family: Century Schoolbook 
    style: Italic 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/c059033l.pfb 
    Font: Century-Schoolbook-Roman 
    family: Century Schoolbook 
    style: Normal 
    stretch: Normal 
    weight: 500 
    glyphs: /usr/share/fonts/type1/gsfonts/c059013l.pfb 
    Font: DejaVu-Sans-Bold 
    family: DejaVu Sans 
    style: Normal 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf 
    Font: DejaVu-Sans-Bold-Oblique 
    family: DejaVu Sans 
    style: Oblique 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSans-BoldOblique.ttf 
    Font: DejaVu-Sans-Book 
    family: DejaVu Sans 
    style: Normal 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSans.ttf 
    Font: DejaVu-Sans-Condensed 
    family: DejaVu Sans 
    style: Normal 
    stretch: SemiCondensed 
    weight: 400 
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSansCondensed.ttf 
    Font: DejaVu-Sans-Condensed-Bold 
    family: DejaVu Sans 
    style: Normal 
    stretch: SemiCondensed 
    weight: 700 
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSansCondensed-Bold.ttf 
    Font: DejaVu-Sans-Condensed-Bold-Oblique 
    family: DejaVu Sans 
    style: Oblique 
    stretch: SemiCondensed 
    weight: 700 
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSansCondensed-BoldOblique.ttf 
    Font: DejaVu-Sans-Condensed-Oblique 
    family: DejaVu Sans 
    style: Oblique 
    stretch: SemiCondensed 
    weight: 400 
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSansCondensed-Oblique.ttf 
    Font: DejaVu-Sans-ExtraLight 
    family: DejaVu Sans 
    style: Normal 
    stretch: Normal 
    weight: 200 
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSans-ExtraLight.ttf 
    Font: DejaVu-Sans-Mono-Bold 
    family: DejaVu Sans Mono 
    style: Normal 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSansMono-Bold.ttf 
    Font: DejaVu-Sans-Mono-Bold-Oblique 
    family: DejaVu Sans Mono 
    style: Oblique 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSansMono-BoldOblique.ttf 
    Font: DejaVu-Sans-Mono-Book 
    family: DejaVu Sans Mono 
    style: Normal 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSansMono.ttf 
    Font: DejaVu-Sans-Mono-Oblique 
    family: DejaVu Sans Mono 
    style: Oblique 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSansMono-Oblique.ttf 
    Font: DejaVu-Sans-Oblique 
    family: DejaVu Sans 
    style: Oblique 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSans-Oblique.ttf 
    Font: DejaVu-Serif-Bold 
    family: DejaVu Serif 
    style: Normal 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSerif-Bold.ttf 
    Font: DejaVu-Serif-Bold-Italic 
    family: DejaVu Serif 
    style: Italic 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSerif-BoldItalic.ttf 
    Font: DejaVu-Serif-Book 
    family: DejaVu Serif 
    style: Normal 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSerif.ttf 
    Font: DejaVu-Serif-Condensed 
    family: DejaVu Serif 
    style: Normal 
    stretch: SemiCondensed 
    weight: 400 
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSerifCondensed.ttf 
    Font: DejaVu-Serif-Condensed-Bold 
    family: DejaVu Serif 
    style: Normal 
    stretch: SemiCondensed 
    weight: 700 
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSerifCondensed-Bold.ttf 
    Font: DejaVu-Serif-Condensed-Bold-Italic 
    family: DejaVu Serif 
    style: Italic 
    stretch: SemiCondensed 
    weight: 700 
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSerifCondensed-BoldItalic.ttf 
    Font: DejaVu-Serif-Condensed-Italic 
    family: DejaVu Serif 
    style: Italic 
    stretch: SemiCondensed 
    weight: 400 
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSerifCondensed-Italic.ttf 
    Font: DejaVu-Serif-Italic 
    family: DejaVu Serif 
    style: Italic 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSerif-Italic.ttf 
    Font: Dingbats-Regular 
    family: Dingbats 
    style: Normal 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/d050000l.pfb 
    Font: Nimbus-Mono-Bold 
    family: Nimbus Mono 
    style: Normal 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/n022004l.pfb 
    Font: Nimbus-Mono-Bold-Oblique 
    family: Nimbus Mono 
    style: Oblique 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/n022024l.pfb 
    Font: Nimbus-Mono-Regular 
    family: Nimbus Mono 
    style: Normal 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/n022003l.pfb 
    Font: Nimbus-Mono-Regular-Oblique 
    family: Nimbus Mono 
    style: Oblique 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/n022023l.pfb 
    Font: Nimbus-Roman-No9-Medium 
    family: Nimbus Roman No9 
    style: Normal 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/n021004l.pfb 
    Font: Nimbus-Roman-No9-Medium-Italic 
    family: Nimbus Roman No9 
    style: Italic 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/n021024l.pfb 
    Font: Nimbus-Roman-No9-Regular 
    family: Nimbus Roman No9 
    style: Normal 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/n021003l.pfb 
    Font: Nimbus-Roman-No9-Regular-Italic 
    family: Nimbus Roman No9 
    style: Italic 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/n021023l.pfb 
    Font: Nimbus-Sans-Bold 
    family: Nimbus Sans 
    style: Normal 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/n019004l.pfb 
    Font: Nimbus-Sans-Bold-Condensed 
    family: Nimbus Sans 
    style: Normal 
    stretch: Condensed 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/n019044l.pfb 
    Font: Nimbus-Sans-Bold-Condensed-Italic 
    family: Nimbus Sans 
    style: Italic 
    stretch: Condensed 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/n019064l.pfb 
    Font: Nimbus-Sans-Bold-Italic 
    family: Nimbus Sans 
    style: Italic 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/n019024l.pfb 
    Font: Nimbus-Sans-Regular 
    family: Nimbus Sans 
    style: Normal 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/n019003l.pfb 
    Font: Nimbus-Sans-Regular-Condensed 
    family: Nimbus Sans 
    style: Normal 
    stretch: Condensed 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/n019043l.pfb 
    Font: Nimbus-Sans-Regular-Condensed-Italic 
    family: Nimbus Sans 
    style: Italic 
    stretch: Condensed 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/n019063l.pfb 
    Font: Nimbus-Sans-Regular-Italic 
    family: Nimbus Sans 
    style: Italic 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/n019023l.pfb 
    Font: Standard-Symbols-Regular 
    family: Standard Symbols 
    style: Normal 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/s050000l.pfb 
    Font: URW-Bookman-Demi-Bold 
    family: URW Bookman 
    style: Normal 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/b018015l.pfb 
    Font: URW-Bookman-Demi-Bold-Italic 
    family: URW Bookman 
    style: Italic 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/b018035l.pfb 
    Font: URW-Bookman-Light 
    family: URW Bookman 
    style: Normal 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/b018012l.pfb 
    Font: URW-Bookman-Light-Italic 
    family: URW Bookman 
    style: Italic 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/b018032l.pfb 
    Font: URW-Chancery-Medium-Italic 
    family: URW Chancery 
    style: Italic 
    stretch: Normal 
    weight: 500 
    glyphs: /usr/share/fonts/type1/gsfonts/z003034l.pfb 
    Font: URW-Gothic-Book 
    family: URW Gothic 
    style: Normal 
    stretch: Normal 
    weight: 300 
    glyphs: /usr/share/fonts/type1/gsfonts/a010013l.pfb 
    Font: URW-Gothic-Book-Oblique 
    family: URW Gothic 
    style: Oblique 
    stretch: Normal 
    weight: 300 
    glyphs: /usr/share/fonts/type1/gsfonts/a010033l.pfb 
    Font: URW-Gothic-Demi 
    family: URW Gothic 
    style: Normal 
    stretch: Normal 
    weight: 600 
    glyphs: /usr/share/fonts/type1/gsfonts/a010015l.pfb 
    Font: URW-Gothic-Demi-Oblique 
    family: URW Gothic 
    style: Oblique 
    stretch: Normal 
    weight: 600 
    glyphs: /usr/share/fonts/type1/gsfonts/a010035l.pfb 
    Font: URW-Palladio-Bold 
    family: URW Palladio 
    style: Normal 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/p052004l.pfb 
    Font: URW-Palladio-Bold-Italic 
    family: URW Palladio 
    style: Italic 
    stretch: Normal 
    weight: 700 
    glyphs: /usr/share/fonts/type1/gsfonts/p052024l.pfb 
    Font: URW-Palladio-Italic 
    family: URW Palladio 
    style: Italic 
    stretch: Normal 
    weight: 400 
    glyphs: /usr/share/fonts/type1/gsfonts/p052023l.pfb 
    Font: URW-Palladio-Roman 
    family: URW Palladio 
    style: Normal 
    stretch: Normal 
    weight: 500 
    glyphs: /usr/share/fonts/type1/gsfonts/p052003l.pfb

は明らかにHerokuの上で使用可能なオプションは、私のマシン上で何よりも広大な、しかしまだかなり限られています。

出典

2016-05-02 ACIDSTEALTH

+1

これはおそらく役に立ちますか？ http://stackoverflow.com/questions/2650882/make-imagemagick-recognize-a-font ...あなたはおそらくpublic/systemにフォントを格納し、それを何とかしておくことができます。 – GoGoCarl

+0

私はその道を見ました。ローカルで実行可能なように見えましたが、私はそれがHeroku上に配備されたRailsアプリケーションにどれだけうまくいくかはわかりませんでした。いずれにしても、明らかな欠点のないより直接的な解決策を見つけることができました。 – ACIDSTEALTH

答えて

2

私はそれを理解しました。それはあまりにも明らかではない場合は、ドキュメントに記載することは驚くほど簡単でした。これを行うより良い方法があれば、共有してください。私はあなたの答えを受け入れます。

新しいcaptionを作成すると（これはおそらく他の種類のテキストにも適用されます）、/etc/ImageMagick/type-ghostscript.xmlにある場合はフォントを文字列（例：ArialBold）として指定できます。ただし、そこにリストされていない場合は、絶対ファイルパスを文字列として渡すこともできます。二重引用符を使用してください。 ImageMagickはTTFフォントとOTFフォントを受け入れます（他のフォントもテストしていません）。

したがって、次のコードを実行すると、フォントマップにフォントがないのに、そのフォントにArial Bold Italicが表示されます。

require 'RMagick' 
include Magick 

caption_text = "This is a test" 
font = "/Library/Fonts/Arial\ Bold\ Italic.ttf" 
text = Magick::Image.read("caption:#{caption_text}") { 
    # this wraps the text to fixed width 
    self.size = "800x600" 
    self.colorspace = RGBColorspace 
    self.background_color = "Transparent" 
    self.depth = 8 
    self.format = 'PNG' 
    self.fill = '#333333' 
    self.font = font 
}.first 
text.write('text.png')

資産/フォントフォルダーにカスタムフォントを簡単に含めることができるので、これはHerokuでも安全です。

出典

2016-05-02 20:40:26 ACIDSTEALTH

+0

ヘロクで成功したことはありますか？私はHerokuにあらゆる種類のフォントを認識させることさえ難しくしています。 （そしてそれは 'identify -list font'からのタイプ-ghostscript.xml出力にはっきりとあります） –

+1

私は残念なことにはありませんでした。私の会社はImageMagickで開発していた機能を放棄してしまったので、私はこれ以上追求しませんでした。しかし、運が良かった！ – ACIDSTEALTH

+0

実際には、それはHerokuで分かりました。プロジェクトのルートに '.fonts'フォルダがあり、そこにフォントをダンプして直接Imageオブジェクトに参照するだけです。 'Magick :: Image.read（ 'text'）{self.font =" SF-Pro-Text-Light "}' –

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