Classifi cation of Map Projections- what are the 4 types of map Projections – what is map Projection its classification- what are the 5 map Projection- why are there different types of map Projection – what are the classification of building- what are different types of classification of works – what are the 3 type of construction- what is classified as construction work- what is mean by Perspective Projections- what is mean by Non Perspective Projections

Classifi cation of Map Projections

Map projections are classifi ed on the following criteria:

• Method of construction

• Development surface used

• Projection properties

• Position of light source

Classifi cation based on Methods of Construction

Given below are the projections that are based on the method of construction:

a). Perspective Projections:

These projections are made with the help of shadow cast from an illuminated globe on to a developable surface.

b). Non Perspective Projections:

A developable surface is only assumed to be covering the globe and the construction of projections is done using mathematical calculations.

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