GIS Data

Vector Data What is Vector Data? A Vector data feature its represent shape using Geometry. The geometry is made up of one or more interconnected vertices. A vertex describes a position in space using an X, Y and optionally Z axis. Geometries which have vertices with a Z axis are often referred to as 3D […]

Raster Data What is Raster Data? Raster data represent real world data, within the GIS environment. Its consists of a matrix of cells (pixels) organized into rows and columns (grid) where each cell contains a value representing information. Raster database represents continuous data such as Elevation, Slope, Surface. Raster Database are Digital Aerial Photographs, Satellites imagery, Digital pictures,

Downloading Shapefiles: A Complete Guide to GIS Data Access In this tutorial discuss about, How to Download free Geographic (GIS) Shapefile Data in DIVA-GIS. DIVA-GIS is a free web service for downloading mapping and geographic data analysis. Its provide free spatial data for the whole world. It is developed by Robert J. Hijmans. Earlier versions

Spatial Data Models in GIS In Geographic Information Systems (GIS), spatial data models serve as a framework for digitally representing the real world. It defines how different elements of geographic information are structured, stored, and related to each other within a GIS database. These models capture the geometry (e.g., shape, location) and attributes (e.g., name,