For example, an edge might be a contrast between values (the difference between light and dark), colors, textures, or even rhythms (repetition of imagery), without the use of line at all.
例如，边可能是属性值(明暗差异)、颜色、纹理乃至规律(图像反复)的对比，完全与线无关。
2
At the same time, the expressiveness of the line itself and cultural imagery of writing have also been promoted to a prominent position.
同时线条本身的表现性，书写性的文化意象，也被提升到明显的位置。
3
They line up with the terrain, so you can see the real deal superimposed on our 3d imagery.