We need to make a better job of providing citation information for Fatiando components. The coolest thing I've seen so far is duecredit. We can annotate our code with references and the user can use duecredit to generate a full list of references (including external libraries).

Can we use a value of center that is outside of the domain? E.g. if we want to model a shell with a pointmass, can the value of center be at the origin, but ymin be at some large positive value?

Description of the desired feature

On the last community call we decided to move all sample datasets in Fatiando to Rockhound.
Harmonica datasets are being moved to Rockhound on fatiando/rockhound#84.
After it is merged, we should remove the harmonica.datasets along with the data folder. Besides, all gallery examples should download their data from Rockhound, there

Hi possible contributors!

Something that would make for a great first issue is to download and compile SWIFT, and then check out the examples and try running a few. The majority of these examples currently use python2 scripts for initial conditions generation and analysis; it would be great if you could upgrade these to use python3 instead.

Thanks!