Search Help Return to Geomatics Science 1 Home
coloured square The University of Melbourne

Radiation

Choose a Topic

 Site Layout
 Chain and Offset
 Distance-Distance
    Intersection

 Angle-Angle Intersection
 Field Procedure
 Computations
 Multiple Stations
 Radiation

next

A direction and a distance are measured from a known point to the feature to be mapped. The data can be plotted directly to scale, or can be reduced to coordinates using the formulae below where theta (q) is a bearing:

Diagram illustrating how to read the distance and direction of feature to be mapped using Radiation.

EP = EA + d sin q NP = NA + d cos q

This page completes the 'Site Layout' Section of Choose a Topic. Use the 'FORWARD' button to select another topic.

back next



The Department of Geomatics
Maintained by:  Nicole Jones
Date Created:  March 1999