Lu Li

Maybe add a warning use ascending order of y? The result is actually not wrong (The Y and matrix are all flipped). But need to be careful that sometimes the...

I'm thinking to put the tutorial of gravity disturbance and free-air gravity like this. https://github.com/LL-Geo/PFToolbox/blob/master/Gravity%20disturbance.ipynb Keen for comments and suggestions 😄 @leouieda @santisoler

Since xrft now has pad and unpad functions, I think it might be good to define all the frequency domain filters together. Like the RTP, the Vertical Integral, and derivatives....

Yep~ I drafted a function for FFT based filter with all these transformations. I'll upload it later today.

I get one test dataset, haha... 

A quick update the test works fine for un-compressed grd.  But the default output from oasis montaj looks like a compressed grid, which means we can't read most data...

@santisoler I upload some grd files for testing (the unsigned grd and -1 order grd are a little bit tricky, I think I need some reverse-engineering ways to do that....

That looks awesome @santisoler ! I make an order=-1 file with a little trick (it's quite uncommon for the grid file with order=-1), and update the test. For the rotation,...

> Yeah I think this would be a good addition. It is a little annoying having to remember the specifics for how to pad and unpad everytime. > > Out...

It's been a long road since 2020.. haha. Sorry for the long waiting.. Following the release of v0.6.0 #386, we are able to run Gaussian High pass and low pass...