Types of Raster Data Queries (Especially for GATE-Geospatial 2022)

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There are two types of raster data queries:

Figure Shows Two Types of Raster Data Query

Cell by Value

One of the stronger aspects of ArcGIS Spatial Analyst is its analytical capabilities. ArcGIS Spatial Analyst takes a locational perspective in which each cell represents a location and the value associated with each cell identifies the type of phenomenon that is at each location.

This Image Shows Raster Data Cell

The functions associated with raster-cell cartographic modeling can be divided into five types:

Figure Shows Raster-Cell Cartogrpahic Modeling

Local Functions

That work on every single cell

Focal Functions

That process the data of each cell based on the information of a specified neighborhood

Zonal Functions

That provides operations that work on each group of cells of identical values

Global Functions

That work on a cell based on the data of the entire grid

Application Functions

When combined in a series, those that perform a specific application

Graphics Design

Types of raster graphics are:

  • Digital Raster Graphic (DRG)
  • Digital Ortho Quarter Quaddrangle (DOQQ)
  • Digital Orthophotos
  • SPOT satellite imagery
  • Digital Elevation Models (DEM)

Developed by: