The Shapefile format is a popular geospatial vector data format for geographic information system (GIS) software for storing the location, shape, and attributes of geographic features. Now let us see the List of Vector Data file formats in GIS : Different geometries can also be compared.
#Arcgis file formats series
As the features are zoomed in, the point location of a auditorium is more realistically represented by a series of building footprints showing the physical location of the campus. They help reduce clutter by simplifying data locations.
Polygon features can measure perimeter and area.īoth line and point feature data represent polygon data at a much smaller scale and Each of these geometries are linked to a row in a database that describes their attributes. Polygon features are two dimensional and therefore can be used to measure the particular area and perimeter of a geographic feature. Polygon features are most commonly distinguished using either a thematic mapping symbology (color schemes), patterns, or in the case of numeric gradation, a color gradation scheme could be used. Polygons convey the most amount of information of the file types. Two-dimensional polygons are used to represent areas such as the boundary of a city (on a large scale map), lake, or forest. Line features have a starting and ending point. Common examples would be road center-lines and hydrology. Liner features are displayed at a small scale and it only have one dimension and therefore can only be used to measure length. Common examples would be rivers, railroads, trails, streets and topographic lines. Line (or arc) or Polyline data is used to represent linear features. Measurement is not possible by using point data. For instance, point locations could represent city locations or place names. Examples would be schools, points of interest, wells, peaks. Points features are also used to represent areas when displayed at a small scale and abstract points. Zero-dimensional points data is most commonly used to represent nonadjacent features and geographical features that can be expressed by single point and to represent discrete data points. Points have zero dimensions, therefore you can measure neither length or area with this dataset. Vector Data is mainly split into three types of geometry according to the geographical features : You can also have a look at Raster data source in my previous post Raster data file format lists in GIS. Vector considers the geographical features as geometrical shape and express them by different types of geometry. In this post we are looking forward to see the List of Vector Data file formats in GIS. These data sources also has multiple file formats in them which are often used to express the geographical features. In GIS, we require some data formats to express the geographical features, which mainly are of two types Raster and Vector data formats.
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