2009年10月25日 星期日

向量

Vector graphics is the use of geometrical primitives such as points, lines, curves, and shapes or polygon(s), which are all based on mathematical equations, to represent images in computer graphics.
Vector graphics formats are complementary to raster graphics, which is the representation of images as an array of pixels, as it is typically used for the representation of photographic images. There are instances when working with vector tools and formats is best practice, and instances when working with raster tools and formats is best practice. There are times when both formats come together. An understanding of the advantages and limitations of each technology and the relationship between them is most likely to result in efficient and effective use of tools.




向量圖形是用幾何圖型 ,如點 , 線 , 曲線 ,和形狀或多邊形 (s)除外,計算機圖形都是基於數學方程來表示圖像。
向量圖形格式,有互補的光柵圖形,這是代表性的形象作為數組的像素,因為它通常用於代表性攝影圖像。在有些情況下,工作的工具在矢量格式中有最佳做法,工作時的情況與光柵格式的工具也擁有最佳處理方式。有些時候兩種格式也會走在一起。如何認識優點和局限性每項技術和它們之間的關係是最有可能導致高效率和有效地使用工具。

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