A GIS is a computer system for the collection, storage, retrieval, spatial data analysis and visualization. The georeferenced data illustrate both the location and characteristics of spatial characteristics. It is also known as spatial data.
The history of GIS hardly spans four decades.
Sites such as the quest card Laden explosion perform provide simple and fast card. Users can give local attractions experience to get the desired information. For example, data for schools and churches nearby.
One of the main applications of GIS is the management of natural resources. Another application is the analysis of crime, emergency planning, land management reports, market analysis, transportation applications.
Integration of GIS technology with wireless global positioning system (GPS) and the internet has introduced new exciting applications. Thus, drivers can find the shortest path in automotive navigation systems.
Increased demand for geospatial data can be achieved with a computer. GIS is responsible for facilitating the visualization of the real world.
Unlike traditional paper maps, GIS detailed information on features, such as roads, buildings, rivers, etc. In addition, the computer quickly navigate the map objects and attributes that they can decide on the offer. The advantage is not possible with a traditional design.
All geometric space data objects represented by points, lines and surfaces. Each has its own data on the geographical coordinates.
GIS is becoming a discipline on behalf of Geomatics, geomatics, spatial information science.
There are two basic GIS concepts. First, the function of the associated attributes. GIS tells us that something is and what it is. Second, the data must be represented as layers, such as points, lines and polygons. A polygon is a solid that has a multi-page form.
The physical and non-physical data. This is provided by a non-spatial data management system. The first is geographic (GIS) are non-geographic. CAD, CAM, CAC, etc. They are not geographically. Raster and vector GIS GIS is a GIS classes.
1. The input and control data,
2. The data and database management,
3. The output data and presentations,
4. Data processing and
5. interaction with the user.
The advent of the graphical user interface, powerful hardware, software, digital public data, etc. We expanded the range of GIS applications and their predominant use in the 1990s.