How to create world map
World map purpose is to show places on earth as they appear in their true location, in terms of latitude and longitude. Cartographers use a technique of transforming the curved earth onto a flat surface that is called projection. It would have very difficult to project globe into flat map to preserve the accuracy of all aspects. The distortion of one can affect other properties of globe.
So cartographers used three type of projection to show accuracy of different aspects of map. Cylindrical projections, conic projections and Azimuthal projections.
Cylindrical projections are useful to showing whole world;
Conic projections are best used for smaller areas of the world such as country maps
Azimuthal projections transform the globe onto a flat circle such maps are useful for viewing hemispheres, continents and the polar regions. |