clipping mask

基本解釋

Additionally cairo implements the normal complement of clipping, masks, and gradients.
另外，cairo 還實(shí)現(xiàn)了剪切、蒙板和漸變等補(bǔ)充特性。
You should know your way around the Layers palette and know how to add Layer Styles, use Custom Shapes and Clipping Masks without much explanation.
你需要了解圖層調(diào)色板和如何添加圖層樣式，并且會使用自定義圖形和剪切遮罩。
SVG's feature set includes nested transformations, clipping paths, alpha masks, raster filter effects, template objects, and of course extensibility.
SVG 的特性包括：嵌套轉(zhuǎn)換、剪輯路徑、alpha 蒙板、光柵過濾效果、模板對象，當(dāng)然還有可擴(kuò)展性。