2008•Electronic EngineerRequires access

Commonly Used World Map Projection Methods and Their Computer Implementation

Zhixiang Wang

Abstract

The original map data in electronic map applications are always expressed in terms of longitude and latitude. In order to display and analyze the data of a prolate ellipsoidal earth on a planar display, suitable projection method shall be used to project geographical data on a plane. This article discusses several useful map projection methods and some computer implementation schemes are provided too.

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Available abstract

Key concepts: Map projection, Projection (relational algebra), Computer science, Projection plane, Electronic map, Planar projection, Geographic coordinate system, Computer graphics (images)