首页 > 解决方案 > 将不在 extrafonts 库中的字体添加到 R

问题描述

在安装了 R 的 extrafonts 库并检查了它必须提供的字体之后,它得出了这个列表:

[1] ".Keyboard"               "System Font"             "Andale Mono"             "Apple Braille"           "AppleMyungjo"           
[6] "Arial Black"             "Arial"                   "Arial Narrow"            "Arial Rounded MT Bold"   "Arial Unicode MS"       
[11] "Batang"                  "Bodoni Ornaments"        "Bodoni 72 Smallcaps"     "Bookshelf Symbol 7"      ""                       
[16] "Brush Script MT"         "Calibri"                 "Calibri Light"           "Cambria"                 "Cambria Math"           
[21] "Candara"                 "Comic Sans MS"           "Consolas"                "Constantia"              "Corbel"                 
[26] "Courier New"             "DIN Alternate"           "DIN Condensed"           "Franklin Gothic Book"    "Franklin Gothic Medium" 
[31] "Gabriola"                "Georgia"                 "Gill Sans MT"            "Gulim"                   "Impact"                 
[36] "Khmer Sangam MN"         "Lao Sangam MN"           "Lucida Console"          "Lucida Sans Unicode"     "Luminari"               
[41] "Marlett"                 "Meiryo"                  "Microsoft Yi Baiti"      "Microsoft Himalaya"      "Microsoft Sans Serif"   
[46] "Microsoft Tai Le"        "MingLiU_HKSCS-ExtB"      "MingLiU_HKSCS"           "MingLiU"                 "MingLiU-ExtB"           
[51] "Mongolian Baiti"         "MS Gothic"               "MS Mincho"               "MS PGothic"              "MS PMincho"             
[56] "MS Reference Sans Serif" "MS Reference Specialty"  "Palatino Linotype"       "Perpetua"                "PMingLiU"               
[61] "PMingLiU-ExtB"           "SimHei"                  "SimSun"                  "SimSun-ExtB"             "Tahoma"                 
[66] "Times New Roman"         "Trattatello"             "Trebuchet MS"            "Tw Cen MT"               "Verdana"                
[71] "Webdings"                "Wingdings"               "Wingdings 2"             "Wingdings 3"    

但是我需要使用 National 2 Condensed 和 National ( https://klim.co.nz/retail-fonts/national-2-condensed/ )。

有没有办法下载这些自定义字体供 R 在 ggplot 中使用,即使它们不包含在额外字体中?如果没有,有人知道这些字体是否与 National 2 Condensed 和 National 2 特别相似吗?

标签: rggplot2fonts

解决方案


首先,您获得所需的字体并将其安装在系统上。与 R 无关。通过检查任何常规程序(如 MS Word 或其他东西)来测试字体是否有效。

然后打开 R,加载extrafont包并导入你安装的字体。我认为它现在只适用于.ttf字体。

library(extrafont)
font_import(pattern="Roboto")

如果可行,则此步骤会将这些字体添加到 extrafontdb。你会看到这样的东西......

> font_import(pattern="Roboto",prompt=FALSE)
Scanning ttf files in C:\windows\Fonts ...
Extracting .afm files from .ttf files...
C:\Windows\Fonts\Roboto-Black.ttf => C:/R/R-3.5.1/library/extrafontdb/metrics/Roboto-Black
C:\Windows\Fonts\Roboto-BlackItalic.ttf => C:/R/R-3.5.1/library/extrafontdb/metrics/Roboto-BlackItalic
...
C:\Windows\Fonts\RobotoCondensed-Regular.ttf => C:/R/R-3.5.1/library/extrafontdb/metrics/RobotoCondensed-Regular
Found FontName for 30 fonts.
Scanning afm files in C:/R/R-3.5.1/library/extrafontdb/metrics
Writing font table in C:/R/R-3.5.1/library/extrafontdb/fontmap/fonttable.csv
Writing Fontmap to C:/R/R-3.5.1/library/extrafontdb/fontmap/Fontmap...

这是一次性的事情。一旦导入,它就可以在 R 中使用。您所要做的就是在下面运行。

library(extrafont)
# for windows
windowsFonts(sans="Roboto")
loadfonts(device="win")
loadfonts(device="postscript")

现在默认值应该已经改变了。

plot(x=1:5,y=1:5)

在此处输入图像描述

ggplotbase_family哪些需要更改和family文本几何的参数。

library(ggplot2)
p <- ggplot(data.frame(x=1:5,y=1:5),aes(x,y))+
  geom_point()+
  geom_text(aes(label=y),nudge_x=0.5,family="Roboto")+
  theme_bw(base_family="Roboto")
p

导出光栅图像也应该可以。

ggsave("plot.png",p)

在此处输入图像描述

PDF是一种痛苦。他们有一个额外的family论点。还有一些关于嵌入和东西的东西。请参阅下面的链接。

ggsave("plot.pdf",p,family="Roboto")

您需要的所有信息都在这里


推荐阅读