这种渐变模型下的层面特性由碾压层内参数渐变特性及上、下表面参数的差异来描述。
The characteristics of rolling layers can be described by the variation of parameters within the layer and the difference of parameters between the upper surface and bottom surface.
另外，cairo还实现了剪切、蒙板和渐变等补充特性。
Additionally Cairo implements the normal complement of clipping, masks, and gradients.
您应该检查的程序特性包括标记资源(比如画笔、调色板、渐变色、图层组、画布上文本编辑)的能力和新的绘图动力系统。
Among the program features you should check are the ability to tag resources like brushes, palettes, gradients, layer groups, on-canvas text editing, and the new paint dynamics.
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