如何精确测量Canvas中带拼音的字体高度？-灵析社区
无心插柳柳成萌请问如何用canvas计算带拼音的字体的高度？ measureText返回的结果并不对，而且用dom的方式计算也是不准确（），虚心请教各位大佬
莫克先森可以看下这个是不是能用
"https://opentype.js.org/" (https://link.segmentfault.com/?enc=olswOFJp3gUs4hKwrUOoHQ%3D%3D.ch7n3rB5HkYMEs0NhvTodDjDhaxrSMbJ8hte9MVxh68%3D)
"Font.draw(ctx, text, x, y, fontSize, options)"
«Create a Path that represents the given text.ctx: A 2D drawing context, like Canvas.
x: Horizontal position of the beginning of the text. (default: 0)
y: Vertical position of the baseline of the text. (default: 0)
fontSize: Size of the text in pixels (default: 72).
Options is an optional object containing:kerning: if true, takes kerning information into account (default: true)
features: an object with OpenType feature tags as keys, and a boolean value
to enable each feature. Currently only ligature features "liga" and "rlig"
are supported (default: true).
hinting: if true uses TrueType font hinting if available (default: false).»
"Glyph.getBoundingBox()"
«Calculate the minimum bounding box for the unscaled path of the given glyph.
Returns an opentype.BoundingBox object that contains x1/y1/x2/y2. If the
glyph has no points (e.g. a space character), all coordinates will be zero.»