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实现基于道格拉斯-普克算法的轨迹抽稀功能,保留关键节点并按原始轨迹插值时间戳
通过引入分段投影与动态搜索窗口,改进轨迹点与原始路径的匹配逻辑。基于点间距离与速度计算前向与后向搜索范围,在分段线要素上寻找最近投影点,避免跨段误差,从而提升轨迹点序列化精度。
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