The UTM projection¶
In this exercise we will learn how to define a simple projection using PROJ. We will investigate a few aspects of the UTM projection, as well as learn how to use a different ellipsoid than the default (GRS80).
Download the gie file for the exercise: projections1.gie
.
Exercise 1: Setting up a projection¶
Set up a UTM projection for use in Estonia.
Hint
See Universal Transverse Mercator (UTM) for more on the projection
operation <your answer here>
tolerance 1 cm
accept 24.745 59.437 # Talinn, Estonia
expect 372106.37 6590881.40
Exercise 2: UTM on the southern hemisphere¶
Set up a UTM projection for use on the North Island of New Zealand.
Hint
See Universal Transverse Mercator (UTM) for more on the projection
operation <your answer here>
tolerance 1 cm
accept 174.740 -36.841 # Auckland, New Zealand
expect 298481.34 5920382.04
Exercise 3: Using a non-standard ellipsoid¶
Set up a UTM projection based on the Hayford ellipsoid for use in Estonia.
Hint
See Universal Transverse Mercator (UTM) for more on the projection
Hint
Run proj -le
to get a list of available ellipsoids
operation <your answer here>
tolerance 1 cm
accept 24.745 59.437 # Talinn, Estonia
expect 372099.99 6591034.35