如何从FontAwesome在Canvas元素上绘制字形 [英] How to render glyphs from FontAwesome on a Canvas element

问题描述

FontAwesome 在其CSS文件中指定字形，如下所示：

FontAwesome specifies glyphs in its CSS file like so:

/*  Font Awesome uses the Unicode Private Use Area (PUA) to ensure 
    screen readers do not read off random characters that represent icons */
.icon-glass:before                { content: "\f000"; }
.icon-music:before                { content: "\f001"; }

我试图将图标从这种字体渲染到canvas元素，访问这些字形。

I am trying to render icons from this font to a canvas element but can't see how to access these glyphs.

ctx.font = "40px FontAwesome";
ctx.fillText("\f000",20,20); // no cigar

如何在JavaScript字符串中指定这些字形？

How do I specify these glyphs in JavaScript strings?

推荐答案

您应该使用 String.fromCharCode ：

ctx.fillText(String.fromCharCode("0xf000"), 20, 20);

或Unicode转义的此语法：

or this syntax for Unicode escapes :

ctx.fillText("\uf000", 20, 20);

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