digital nautical chart

基本解釋

A method for constructing an undersea digital elevation model(DEM) was proposed, using the soundings and coastline elements in a vector nautical chart.
分析了矢量電子地圖的現(xiàn)狀，對(duì)采用面向?qū)ο蟮臄?shù)據(jù)模型和數(shù)據(jù)結(jié)構(gòu)實(shí)現(xiàn)矢量電子地圖進(jìn)行了研究。
The digital information of electronic nautical chart used by this institute is realized by its system of the automatic generation of electronic nautical chart database.
該系統(tǒng)所用的電子航海圖數(shù)字化資料以該所的電子航海圖數(shù)據(jù)庫(kù)自動(dòng)生成系統(tǒng)完成。