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Terrain contour drawing is given in this paper the vector quantization, and then put forward to generate 3 d terrain model of engineering problems, this paper expounds the scanning, pretreatment, refining steps - such as terrain contour drawings of vectorization, leading to the formation of three - dimensional terrain model works, expounded the scanning, pretreatment steps to as thinning
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地形图等高线的计算机矢量化及三维地形模型的生成.PDF