Литература по программному обеспечению (язык: английский)
An image of the earth’s surface is a wealth of information. Images capture a permanent record of buildings, roads, rivers, trees, schools, mountains, and other features located on the earth’s surface. But images go beyond simply recording features. Images also record relationships and processes as they occur in the real world. Images are snapshots of geography, but they are also snapshots of reality.
Images chronicle our earth and everything associated with it; they record a specific place at a specific point in time. They are snapshots of our changing cities, rivers, and mountains. Images are snapshots of life on earth.
The data in a GIS needs to reflect reality, and snapshots of reality need to be incorporated and accurately transformed into instantaneously ready, easy-to-use information. From snapshots to digital reality, images are pivotal in creating and maintaining the information infrastructure used by today’s society. Today’s geographic information systems have been carefully created with features, attributed behavior, analyzed relationships, and modeled processes.
There are five essential questions that any GIS needs to answer: Where, What, When, Why, and How. Uncovering Why, When, and How are all done within the GIS; images allow you to extract the Where and What. Precisely where is that building? What is that parcel of land used for? What type of tree is that? The new extensions developed by Leica Geosystems GIS & Mapping, LLC use imagery to allow you to accurately address the questions Where and What, so you can then derive answers for the other three.