After transformation of the data model and processing of the thematic mapping elements, the paper constructs a mapping system of the seabed sediment thematic digital map. 經過對數據模型的轉換以及專題制圖要素的處理，建立了海洋底質專題數字圖成圖系統。
Along with the application of digital cartography in the field of Cartography, developing the system for digital mapping becomes inevitable. 隨著數字地圖制圖技術的逐步成熟，有必要研制開發適合多比例尺數字矢量地形圖生產的數字測圖系統。
