用坐标表示地理点位置的标准表示法

[中文适用范围]： 本文档指定了纬度和经度以及可选的高度或深度的表示，与 ISO 6709 的先前版本兼容。 本文档还支持其他坐标类型和时间的表示，这些坐标类型和时间可以与通过一个或多个坐标引用定义的那些坐标相关联。 系统 (CRS)。 本文档描述了一个点的适合电子数据交换的坐标文本字符串，包括参考系统识别以确保坐标明确地表示该点的位置。 包含具有单个公共参考系统标识的多个点的文件超出范围。 该文档还描述了一种更简单的文本字符串结构，用于更适合人类可读的点位置的坐标表示。 [外文原描述]： This document specifies the representation of latitude and longitude and optionally height or depth compatible with previous editions of ISO 6709. This document also supports the representations of other coordinate types and time that can be associated with those coordinates as defined through one or more coordinate reference systems (CRS). This document describes a text string of coordinates, suitable for electronic data exchange, for one point, including reference system identification to ensure that the coordinates unambiguously represent the position of that point. Files containing multiple points with a single common reference system identification are out of scope. This document also describes a simpler text string structure for coordinate representation of a point location that is more suitable for human readability.