pyckster 26.1.2

A PyQt5-based GUI for picking seismic traveltimes

PyCKSTER is an open-source PyQt5-based GUI for picking seismic traveltimes. It reads seismic files in SEG2, SEGY and Seismic Unix (SU) formats. Picked traveltimes are saved in pyGIMLi's unified format so they can easily be inverted to reconstruct subsurface velocity models.

PyCKSTER can read SEG2, SEGY and Seismic Unix (SU) files (although SEG2 headers are not read correctly yet). You can import source and geophone elevation from csv files. You can also update headers information (ffid, source and trace coordinates, delay), and save shots with these updated headers in SEGY and SU formats.

Installation

PyCKSTER has now a built-in inversion module based on pyGIMLi. So far it seems to work better if pyGIMLi is installed first:

conda create -n pyckster -c gimli -c conda-forge "pygimli>=1.5.0" "suitesparse=5"

Then you can simply download the package from PyPi:

pip install pyckster

To update PyCKSTER, run the following command:

pip install pyckster --upgrade

Troubleshooting

If numpy > 2 is installed in your environment, you might not be able to run pygimli. If so you can downgrade numpy with the following command :

pip install numpy==1.26.4 --upgrade

Running PyCKSTER

Open a terminal and run:

pyckster

How to use PyCKSTER

Mouse Controls

• Left click: Add a single pick at cursor position
• Left drag: Pan the plot
• Ctrl + Left drag: Draw freehand picks along multiple traces
• Middle click: Remove a single pick
• Middle drag: Pan the plot
• Ctrl + Middle drag: Select and remove multiple picks in a rectangle
• Right click: Context menu with plot options
• Right drag: Zoom along axes (horizontal or vertical)
• Ctrl + Right drag: Rectangle zoom (zoom to selected area)

Here is an example of PyCKSTER in action:

More detailed instructions coming soon...

Author

PyCKSTER is currently developped by Sylvain Pasquet
[e-mail]

CNRS, Sorbonne Université
UAR 3455 OSU ECCE TERRA
UMR 7619 METIS

Any feedback or help is welcome.

Licence

PyCKSTER is distributed under the terms of the GPLv3 license. Details on the license agreement can be found here.