index
Introduction
Buffering of Point Data
Buffering of Line Data
Buffering of Polygon Data

---

introduction

Buffering involves the creation of a zone of a specified width around a point, line or polygonal area. The resulting buffer is a new polygon, which can be used in queries to determine which entities occur either within or outside the defined buffer zone.

Buffering can also be defined as the vector equivalent to distance analysis in raster Geographical Information Systems.

 

Note: You should make sure you understand all concepts covered here before attempting the other lessons, printing the material presented here is recommended for future reference