再帮下忙英译汉吧"A geographic information system (GIS) is a computer

再帮下忙英译汉吧
"A geographic information system (GIS) is a computer-based tool for mapping and analyzing things that exist and events that happen on earth.GIS technology integrates common database operations such as query and statistical analysis with the unique visualization and geographic analysis benefits offered by maps." ESRI
"GIS is an integrated system of computer hardware,software,and trained personnel linking topographic,demographic,utility,facility,image and other resource data that is geographically referenced." NASA
GIS has already affected most of us in some way without us even realizing it.If you've ever using an Internet mapping program to find directions,congratulations,you've personally used GIS.The new supermarket chain on the corner was probably located using GIS to determine the most effective place to meet customer demand.
Components of GIS
This article has briefly explained what GIS is.The next step in understanding GIS is to look at each component of GIS and how they work together.These components are:
Hardware
Hardware comprises the equipment needed to support the many activities of GIS ranging from data collection to data analysis.The central piece of equipment is the workstation,which runs the GIS software and is the attachment point for ancillary equipment.Data collection efforts can also require the use of a digitizer for conversion of hard copy data to digital data and a GPS data logger to collect data in the field.The use of handheld field technology is also becoming an important data collection tool in GIS.With the advent of web-enabled GIS,web servers have also become an important piece of equipment for GIS.
Software
Different software packages are important for GIS.Central to this is the GIS application package.Such software is essential for creating,editing and analyzing spatial and attribute data,therefore these packages contain a myriad of GIS functions inherent to them.Extensions or add-ons are software that extends the capabilities of the GIS software package.For example,Xtools is an ArcView extension that adds more editing capabilities to ArcView 3.x.Component GIS software is the opposite of application software.Component GIS seeks to build software applications that meet a specific purpose and thus are limited in their spatial analysis capabilities.Utilities are stand-alone programs that perform a specific function.For example,a file format utility that converts from on type of GIS file to another.There is also web-GIS software that helps serve data through Internet browsers.

一个地理的数据制度 (GIS) 是映射而且分析存在的事物和偶然发现地球的事件的一个以计算机为基础的工具.GIS 技术整合通常的用从地图得到的独特的使看得见的和地理的分析利益的数据库操作,像是疑问和统计的分析." ESRI
"GIS 是一个计算机硬件的整合系统,软件 ,而且训练联编的人员地志、人口统计学 ,实效、设备、图像和其他的地理叁考的资源数据 ." 美国航空暨太空总署
GIS 甚至在某些方面没有我们已经影响我们大部份了了解它.如果你曾经使用映射计画找方向,祝贺的一个英特网,你已经亲自地用 GIS .在角落上的新的链锁超级市场或许被位于使用 GIS 决定最有效的地方符合客户要GIS 的成份
这一个文章已经简短地解释什么 GIS 是.下一个步骤在了解 GIS 方面将看 GIS 和他们如何一起工作的每个成份.这些成份是:
硬件求.
硬件包含设备需要支援排范围从数据收集到数据分析的 GIS 的许多活动.中央设备的块是工作站,跑 GIS 软件而且是补助的设备附着点.数据收集努力也能为硬拷贝数据之转换为数传数据和一个全球定位测量宇宙站需要数化器的使用哪一数据樵夫在领域中收集数据.手持式领域技术的使用也正在变成重要的数据 collec
不同的软件包对 GIS 是重要的.中央的对这是 GIS 申请包裹.如此的软件对创造是必要的,编辑而且分析空间的和属性数据,因此这些包裹包含一个 GIS 的万动作固有的对他们.延长或数据片是扩充 GIS 软件包的能力的软件.举例来说,Xtools 是把较多的编辑能力加入 ArcView 3.x 的 ArcView 延长.成份 GIS 软件是相对事物应用软体.成份 GIS 寻求建立软件申请哪一会一个特定的目的而且如此被在他们的空间分析能力方面限制.实效是运行一个特定的功能的单机计画.举例来说,一个转换的文件格式实效从在 GIS 文件的类型上对另外的.也有帮助的网-GIS 的软件经过英特网浏览器服侍数据.