[4] How to represent geographic relief ? #2

From 3D to the cross section

The relief could be represented in several ways : 2D or 3D. The data for each are the same but the keys to read them are different.

2D Maps


Contour line of 25 m

3D Maps


Cross-section in 2D

Contour lines are formed by connecting points at the same altitude

Note : for cross sectional and 3D views, the altitudes are overestimated compared to reality. They are not the same scale as the horizontal distances.