The realm of geographical data sets and GIS applications may seem a bit difficult to understand in a world that talks about open source and global environmental phenomena.
在谈到有关开源和全球环境现象时，很难让人联想到地理数据集和GIS应用程序领域。
Today, programmers can access a whole continuum of open source GIS applications, largely developed on UNIX and Linux systems.
目前，编程人员能够访问整个开源 GIS 应用程序在很大程度上依赖于 UNIX 和 Linux 系统。
Several open source tools are handy for working with GIS data.
有几个开源工具可用于GIS数据。
应用推荐