What is Shape File ?

Cover Feature:

Shapefile is constructed to link a point in a digital map to a database storing related retrievable informations about the point. A vector data (points, lines, or polygons) storage format for storing the location, shape, and attributes of geographic features(ESRI Def).

Shapefiles can be of three types :

1.Point Shape : A shapefile consisting of points which is used to represent datasets about a location(city,town etc.)

2.Polyline Shape : A shapefile of more than one point shape is known as Polyline shapefile and is used to represent information regarding line features like river,road,pipeline etc.

3.Polygon Shape : The polygon shapes are developed with the help of more than two points representing the vertices of a polygon.This type of shapes are used to exemplify a region like watershed,pond etc.

Any shapefile can be zoomed in or out without any deformation in the spatial representation and thus such files are grouped under Vector images.

Summary : Shapefiles store information about the geo-attributes of the places represented by them.(More in http://www.baipatra.ws/tutorial.html)

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