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中文摘要：
在介绍矢量化方式的基础上,根据国外地图的特点,选择了基于全要素地图的矢量化方式。通过综合利用多义点及方向信息,对等高线矢量化的追踪过程控制,不仅避免了误追踪等特殊情况,且减少了人机交互,实现了有背景色区域等高（等深）线的半自动矢量化。
英文摘要：
According to the diversification of foreign maps, the vectorization mode based on combination plate map is chosen. The multivocal point and direction information are introduced into the tracing. The combinative use of them not only avoid error tracing and bug in the tracing processing, but also reduce the man-machine interaction. The improved algorithm realizes the semiautomatic vectorization of contour line and isobath from the tint area in combination plate map, and the efficient and reliability are proved through experiments.
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