A vector based GIS is defined by the vectorial representation of its geographic data. According with the characteristics of this data model, geographic objects are explicitly represented and, within the spatial characteristics, the thematic aspects are associated.What are the advantages of vector data in GIS?
Vector data models can represent all types of features with accuracy. Points, lines, and polygons, are accurate when defining the location and size of all topographic features. The vector data model is often the data model of choice for GIS because it can contain information about topology which underlies a large number of GIS operations.What are GIS used for?
GIS is most commonly used on the desktop – i.e., where the software is installed directly onto individual PCs. GIS for desktop allows for complex geoprocessing and analytical work, which need a large amount of computer processing power.What is raster and vector in GIS?
Raster vs Vector GIS Introduction. Raster and vector Geographical Information Systems operate differently and are used to address different types of geographical problems. Vector GIS. Vector GISs have databases attached to them. ... Raster GISs. Raster GISs (grid cell) work by storing attribute data as grid cell values. ... Conclusion. ...