Pitney-bowes MapInfo Professional Uživatelský manuál stáhnout pdf (Strana 395)

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Globe with Conic Projection

This type of projection is much more accurate for large regions or countries that are wider in the East-West

direction than in the North-South direction. There is much less distortion regionally because the touch

points of a cone are closer to the map surface than those of a cylinder.

Brazilian Polyconic Projection Map

As you can see from the previous figure, the conic maps are best for small regional areas. The

smaller-scale map has too much distortion to be useful.

A fourth type of projection, the Azimuthal projection, does not use cones or cylinders but a simple circle

that goes all the way around the globe over a particular point. This projection provides a "view from

space" over a particular point.

Globe with Azimuthal Projection

This type of projection is most useful when you need to work with a particular hemisphere. A hemisphere

need not be North-South or East-West based. The next figure uses the North Pole as the center point

for the Azimuthal Projection.

395MapInfo Professional User Guide

Chapter 15: Working with Coordinate Systems and Projections

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