# City Map World full

The choice of map projection is an important decision in cartography because it determines how the Earth’s three-dimensional surface is represented on a two-dimensional map. Different map projections are used to emphasize different aspects of the Earth’s geography, and each has its strengths and weaknesses. Here are a few examples of different map projections:

1. Mercator Projection:
• Strength: Preserves angles and shapes, making it useful for navigation.
• Weakness: Distorts the size of objects as you move toward the poles, making polar regions look much larger than they are.
2. Robinson Projection:
• Strength: A compromise projection that tries to minimize distortions in size, shape, and distance.
• Weakness: Does not excel in any particular aspect but offers a good balance.
3. Winkel Tripel Projection:
• Strength: A compromise projection that provides a more accurate representation of size and shape than the Robinson projection.
• Weakness: Still some distortion at high latitudes.
4. Mollweide Projection:
• Strength: Preserves area, making it useful for showing the relative sizes of countries and continents.
• Weakness: Distorts shapes, especially near the edges.
5. Eckert IV Projection:
• Strength: A pseudocylindrical projection that balances size and shape.
• Weakness: Distortion increases at the poles.
6. Goode’s Homolosine Projection:
• Strength: Minimizes area distortion and is often used for thematic maps.
• Weakness: Complicated shape, which makes it less useful for navigation.
7. Azimuthal Equidistant Projection:
• Strength: Preserves accurate distances and directions from a central point.
• Weakness: Distortion increases as you move away from the central point.
8. Sinusoidal Projection:
• Strength: Good for showing distributions and for equal-area mapping.
• Weakness: Distorts shape and angles.
9. Conic Projection:
• Strength: Useful for mapping specific regions with a conical shape.
• Weakness: Distorts areas outside the region of focus.
10. Polyconic Projection:
• Strength: Designed for mapping smaller areas with minimal distortion.
• Weakness: Not suitable for mapping the entire world.

These are just a few examples of the many map projections that cartographers use to represent the Earth’s surface. The choice of projection depends on the specific purpose of the map and the trade-offs between different types of distortion. Different projections excel in different aspects, and cartographers choose the one that best suits their needs.

##### Author: Kirill Shrayber, Ph.D.

I have been working with vector cartography for over 25 years, including GPS, GIS, Adobe Illustrator and other professional cartographic software.