基于激光雷達(dá)(LIDAR)成果更新1∶10 000高程點(diǎn)等高線的具體流程
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摘 要:該文從實(shí)際生產(chǎn)角度出發(fā),簡(jiǎn)述遼寧省1∶10 000地形圖更新與建庫項(xiàng)目利用已有LiDAR數(shù)據(jù)成果更新1∶10 000基礎(chǔ)地理信息數(shù)據(jù)中高程點(diǎn)、等高線的生產(chǎn)作業(yè)流程以及在實(shí)際生產(chǎn)過程中出現(xiàn)的技術(shù)問題、解決問題的經(jīng)驗(yàn)和技巧。
關(guān)鍵詞:LiDAR數(shù)據(jù);更新高程點(diǎn);等高線;地形圖;建庫項(xiàng)目
中圖分類號(hào):P237 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):2095-2945(2024)07-0162-04
Abstract: From the point of view of actual production, this paper briefly describes the updating and database-building project of 1∶10 000 topographic map in Liaoning Province, which uses the existing LiDAR data to update the production process of elevation points and contours in 1∶10 000 basic geographic information data, as well as the technical problems in the actual production process and the experience and skills of solving the problems.
Keywords: LiDARdata; update elevation points; contours; topographic map; database construction project
等高線和高程點(diǎn)是基礎(chǔ)地理信息數(shù)據(jù)中的重要地貌要素,能夠反映地表起伏的姿態(tài)和地表形態(tài)的特征,是地形圖上使用最廣泛的地貌表示要素。(剩余5377字)