世界港口地理位置数据

世界港口地理位置数据可用于查询世界港口位置，用户可以利用港口数据选择任何世界港口作为导航的出发点或目的地,在电子海图上标注港口图标。港口：通过纸质海图、港口图书获取港口地理位置数据，按照数据类型，对原始地理位置数据进行可视化处理，数据存储为WKT格式。WKT格式由两部分组成，一部分描述空间几何对象的类型和坐标系信息（例：LINESTRING (x1 y1, x2 y2, ..., xn yn)），另一部分则是空间几何对象的坐标点的序列，系统通过坐标类型的枚举匹配识别出当前WKT的对象类型（几何位置类型点1、线2、面3、多点4、多线为5、多面为6，港口类型皆为点1），根据WKT的对象所属类型情况进行处理后生成港口信息列表。根据列表经纬度内容在我司地理系统后台上进行点位绘制，并记录相关属性，从而在电子海图上形成港口图标。
为了方便搜索港口名称从而能在电子海图上查看到港口的地理位置，需对港口数据进行二次加工。用十六进制数设置港口类型编码，并采用B+树结构存储数据，创建港口目录管理数据库。通过索引中的数据地址，快速查找每个港口的实体数据地址。

This global port geographic location dataset enables querying the locations of worldwide ports. Users can utilize this port dataset to select any global port as the starting or destination point for navigation, and mark port icons on electronic nautical charts.

Port data collection: Port geographic location data is obtained from paper nautical charts and port reference books. Raw geographic location data is visualized according to its data type, and stored in the Well-Known Text (WKT) format.

The WKT format consists of two parts: one describes the type of spatial geometric object and coordinate system information (e.g., LINESTRING (x1 y1, x2 y2, ..., xn yn)), while the other is the sequence of coordinate points of the spatial geometric object. The system identifies the object type of the current WKT through enumeration matching of coordinate types (geometric position types: point 1, line 2, polygon 3, multi-point 4, multi-line 5, multi-polygon 6; all port types fall into point 1). After processing based on the object type of the WKT, a port information list is generated.

Based on the longitude and latitude information in the list, points are plotted on the backend of our company's geographic information system, and relevant attributes are recorded, thus forming port icons on electronic nautical charts.

To facilitate searching for port names to view their geographic locations on electronic nautical charts, secondary processing of port data is necessary. Port type codes are set using hexadecimal numbers, and the B+ Tree structure is adopted for data storage to build a port directory management database. The physical data address of each port can be quickly retrieved via the data address in the index.

搜集汇总

数据集介绍

特点

世界港口地理位置数据集包含5423条记录，每周更新，主要用于查询和标注世界港口位置。数据来源于企业，通过纸质海图和港口图书获取，并经过可视化处理存储为WKT格式，适用于电子海图上的港口图标标注。