关键词: 可伸缩矢量图像, 原始交点链表, 颜色渐变, 颜色动态填充

Abstract: SVG（Scalable Vector Graphics） provides a label <animateColor> for dynamic and gradual color change filling with the region.From practical point of view，the browsing speed is not high enough to the end user as the more complex region boundary is，the more system resources are needed by the process of color gradual change.To solve this problem，a scan line color filling algorithm which uses the original node chain is brought forward based on the analysis of the basal algorithm of SVG region filling and the principle of color gradual change.The experiments prove that the algorithm performs a higher general efficiency than SVG Viewer about 70% during the process of dynamic filling.And it also provides an efficient and correct color region filling after geometric transformation.

Key words: Scalable Vector Graphics（SVG）, original node chain, color gradual change, color dynamic filling