真正的类型与打开类型 [英] True Type vs. Open Type

问题描述

true type 和打开类型字体有什么区别？后者是否建议像开放源代码一样开放？操作系统是否使用不同的引擎来呈现这两个？

编辑：
对不起，在我原来的问题中不太清楚。实际上，我正在寻找关于两者之间视觉差异的更多解释（如果有的话）。可能有一个在例如生成曲线的角度等。

解决方案

两者可能使用不同的技术来描述字符轮廓。与开源没有任何关系。

TrueType字体使用TrueType大纲描述，OpenType字体可以使用TrueType大纲或CFF（紧凑字体格式）大纲。

这两种格式的规格均已公布并可免费获得。

What is the difference between true type and open type font? Does the latter suggest openness as in open-source? Does the OS use a different "engine" for rendering those two?

Edit: Sorry, wasn't really clear in my original question. I was actually looking for more explanation regarding the visual difference (if any) between the two; maybe one has more limitation in the e.g. angles to generate curves, etc.

解决方案

The two may use different technologies for describing character outlines. There is no relationship with open source.

TrueType fonts use TrueType outline descriptions, OpenType fonts may use either TrueType outlines or CFF (Compact Font Format) outlines.

Specifications for both formats are published and freely available.

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