Layers and Masters 图层和母版
https://help.fontlab.com/fontlab/7/manual/Layers-and-Masters/
Layers 图层
In FontLab, all drawings,metrics, kerning are stored per layer. This is different from how layers workedin FontLab Studio 5. All the sections in this manual refer to “Glyphs” — butthat should be understood to mean “Glyph Layers”.
在 FontLab 中，所有的绘图、度量和字距调整都存储在每个图层中。这与 FontLab Studio 5中的图层工作方式不同。本手册的所有章节都提到了“字形”ーー但应该理解为“字形图层”。
Againunlike FontLab Studio 5, you can create as many layers as you wish. You canname layers and change their properties, as well as change their order in theglyph layout.
同样与 FontLab Studio 5 不同，你可以创建任意多的图层。您可以命名图层和更改它们的属性，以及更改它们在字形布局中的顺序。
Differentglyphs may have different numbers of layers. When you create a new glyph, onlythe outline layer for the style name is created for that glyph. So for example,if the style name for the font is Bold Italic, that is also the name given tothe layer. The style name layer is the main layer where you draw your glyphs.You can add more layers to one glyph, to several selected glyphs or to allglyphs in your font.
不同的字形可以有不同的图层数。当你创建一个新字形时，该字形中只包含一个轮廓图层，即标有字体样式名称的图层。例如，如果字体的样式名称是“粗斜体”，则图层的名称也是“粗斜体”。样式名称图层是绘制字形的主要图层。您可以向一个字形、选定的多个字形或字体中的所有字形添加更多图层。
You canalso add a singleGlobal Mask, or individualMask layersto each of your main layers,if you wish. Mask layers (including the Global Mask) have theservice layerattribute, and therefore are not rendered in theFont Windowor thePreview panel. They also do not participate inthe interpolation process and are not exported in the final font formats.
您还可以添加一个单一的全局蒙版，或独立的蒙版层到您的每一个主要图层，如果你愿意。蒙版层(包括全局蒙版)具有服务图层属性，因此不会在字体窗口或预览面板中呈现。它们也不参与插值过程，并且不包含在最终导出的字体格式中。
Note thatglyphs on different layers could have different metrics and be kerned withother glyphs differently. You can think about layers as separate font faces,each having its own width or weight or other attributes.
注意，不同图层上的字形可能有不同的度量，并且与其他字形的字距也不同。你可以将图层看作独立的一个字体，每个字体都有自己的宽度、重量或其他属性。
To learnabout how to use layers, seeWorking with Layers. TheLayers and Masters panelis used to managethem in a font.
要了解如何使用图层，请参阅使用图层。在图层和母版面板中可以管理相应的内容。
Masters 母版
AMasteris alayer that may be exported, and is intended to take part inVariationsinterpolation if there aremultiple Masters. TheLayers and Masters panelandVariations panelare used to manage themin a font. (To learn about how to use layers, seeWorking with Layers.)
母版是一个可以导出，并打算用于可变字体插值的图层，如果你有多个母版。“图层和母版”面板和“变体Variations”面板是用来管理它们相应内容的地方。(要了解如何使用图层，请参阅使用图层。)
A master that is not at either end of an axis is referred to as an intermediate master. Forexample, a variable font with a weight axis might have an extra-light master, abold master, and a black master. The bold master, not being at either extreme,is an intermediate master.
不在轴两端的母版称为中间母版。例如，带有重量轴的可变字体可能有一个Extra Light（超细）的母版、一个Bold（粗体）母版和一个Ultra Black（超黑）母版。粗体母版不在两端，它是一个中间母版。
A Master layer is not required to be present in every glyph in the font. A Master that is present in all glyphs is called a Font Master, while one that is present in one or few, but not all glyphs is called a Glyph Master. A master that is not presentin a given glyph does not affect the interpolation of that glyph. For example,a font with a weight axis might have an Extra Light master for all glyphs, anUltra Black master for all glyphs, and a Bold master for just some glyphs.
母版图层不需要出现在字体的每个字形中。出现在所有字形中的母版称为字体母版，而出现在一个或几个字形中的母版称为字形母版。母版没有出现在某个字形中并不影响该字形的插值。例如，一个带有重量轴的字体可能对所有字形有一个 Extra Light 母版，对所有字形有一个 Ultra Black 母版，对某些字形有一个 Bold 母版。