# Latest **URL:** https://forum.generic-mapping-tools.org/latest.md [Latest](https://forum.generic-mapping-tools.org/latest.md) · [Categories](https://forum.generic-mapping-tools.org/categories.md) · [Tags](https://forum.generic-mapping-tools.org/tags.md) --- ## [Equal Earth projection](https://forum.generic-mapping-tools.org/t/equal-earth-projection/6489)
**Author:** [@darekk](https://forum.generic-mapping-tools.org/u/darekk)\ **Replies:** 13\ **Last updated:** [September 23, 2026, 8:44pm UTC](https://forum.generic-mapping-tools.org/t/equal-earth-projection/6489 "2026-09-23T20:44:33Z")
Is it possible to apply the Equal Earth projection (=EPSG8857 to 9?) in GMT ? Thank You. --- ## [Any plans for a PyGMT short course at ~EGU26~ EGU27?](https://forum.generic-mapping-tools.org/t/any-plans-for-a-pygmt-short-course-at-egu26-egu27/6274)
**Author:** [@andrebelem](https://forum.generic-mapping-tools.org/u/andrebelem)\ **Replies:** 9\ **Last updated:** [September 22, 2026, 11:15pm UTC](https://forum.generic-mapping-tools.org/t/any-plans-for-a-pygmt-short-course-at-egu26-egu27/6274 "2026-09-22T23:15:40Z")
Hi everyone, Just out of curiosity: are there any plans for a PyGMT short course or workshop at EGU2026? Here in Brazil, many users have been learning and developing their figures using the materials from past courses,… --- ## [Advisory Meeting Summary for September 10](https://forum.generic-mapping-tools.org/t/advisory-meeting-summary-for-september-10/6491)
**Author:** [@SolarEarth](https://forum.generic-mapping-tools.org/u/SolarEarth)\ **Replies:** 3\ **Last updated:** [September 15, 2026, 4:39pm UTC](https://forum.generic-mapping-tools.org/t/advisory-meeting-summary-for-september-10/6491 "2026-09-15T16:39:00Z")
The GMT Advisory Group meeting was held September 10, 2026. The following is a mostly AI generated summary of the meeting. Meeting Summary Quick recap The meeting began with a discussion about hosting a GMT in-person … --- ## [GMT plotting problem with geographic coordinates](https://forum.generic-mapping-tools.org/t/gmt-plotting-problem-with-geographic-coordinates/6482)
**Author:** [@Elmas](https://forum.generic-mapping-tools.org/u/Elmas)\ **Replies:** 8\ **Last updated:** [September 4, 2026, 10:28am UTC](https://forum.generic-mapping-tools.org/t/gmt-plotting-problem-with-geographic-coordinates/6482 "2026-09-04T10:28:05Z")
Hi everyone, I am experiencing a strange problem when plotting a small area with GMT using the Mercator projection (-JM). The region I specify is: -R38.7497222222/38.7661111111/9.00805555556/9.02444444444 However, the… --- ## [Introduction to Generic Mapping Tools (GMT) for Geophysics self-paced course now open](https://forum.generic-mapping-tools.org/t/introduction-to-generic-mapping-tools-gmt-for-geophysics-self-paced-course-now-open/6486)
**Author:** [@SolarEarth](https://forum.generic-mapping-tools.org/u/SolarEarth)\ **Replies:** 13\ **Last updated:** [September 4, 2026, 8:38am UTC](https://forum.generic-mapping-tools.org/t/introduction-to-generic-mapping-tools-gmt-for-geophysics-self-paced-course-now-open/6486 "2026-09-04T08:38:02Z")
Introduction to Generic Mapping Tools (GMT) for Geophysics self-paced course now open Learn how to create publication-quality maps and visualize geophysical data with the new Introduction to Generic Mapping Tools (GMT… --- ## [Question about sphdistance](https://forum.generic-mapping-tools.org/t/question-about-sphdistance/1096)
**Author:** [@szahirovic](https://forum.generic-mapping-tools.org/u/szahirovic)\ **Replies:** 4\ **Last updated:** [August 29, 2026, 11:18pm UTC](https://forum.generic-mapping-tools.org/t/question-about-sphdistance/1096 "2026-08-29T23:18:53Z")
Hi wonderful GMT team! Hope you are all doing well, despite the obvious challenges of 2020. I am trying to make distance grids using sphdistance. I am feeding it reconstructed mid-oceanic ridge line geometries (densifi… --- ## [Free self-paced course — Introduction to GMT for Geophysics (EarthScope)](https://forum.generic-mapping-tools.org/t/free-self-paced-course-introduction-to-gmt-for-geophysics-earthscope/6484)
**Author:** [@Esteban82](https://forum.generic-mapping-tools.org/u/Esteban82)\ **Replies:** 1\ **Last updated:** [August 29, 2026, 9:42am UTC](https://forum.generic-mapping-tools.org/t/free-self-paced-course-introduction-to-gmt-for-geophysics-earthscope/6484 "2026-08-29T09:42:36Z")
EarthScope Consortium is offering a free, asynchronous, self-paced course: “Introduction to Generic Mapping Tools (GMT) for Geophysics” (~30 hours). No fixed schedule — work through it at your own pace, online, with jus… --- ## [SKILLS or MCP Server](https://forum.generic-mapping-tools.org/t/skills-or-mcp-server/6483)
**Author:** [@seanricardoford](https://forum.generic-mapping-tools.org/u/seanricardoford)\ **Replies:** 1\ **Last updated:** [August 28, 2026, 6:53am UTC](https://forum.generic-mapping-tools.org/t/skills-or-mcp-server/6483 "2026-08-28T06:53:35Z")
Any thoughts on provided a developer-curated SKILLS.md for GMT? Of course, taking it to the next level: MCP server. In the future I see putting this in my config: \[mcp\_servers.gmt\] command = “/Applications/GMT-6.5.0.… --- ## [Plot a schmidt stereonet](https://forum.generic-mapping-tools.org/t/plot-a-schmidt-stereonet/6067)
**Author:** [@Rom1](https://forum.generic-mapping-tools.org/u/Rom1)\ **Replies:** 20\ **Last updated:** [August 27, 2026, 2:40pm UTC](https://forum.generic-mapping-tools.org/t/plot-a-schmidt-stereonet/6067 "2026-08-27T14:40:39Z")
Hi everyone, I have a 2-column file containing azimuth and plunge values, representing the poles to fault planes. I would like to plot them on a Schmidt stereonet (equal-area projection), but I can’t get it to work — th… --- ## [Finding suitable colors for my map](https://forum.generic-mapping-tools.org/t/finding-suitable-colors-for-my-map/6481)
**Author:** [@aastha](https://forum.generic-mapping-tools.org/u/aastha)\ **Replies:** 2\ **Last updated:** [August 20, 2026, 4:52pm UTC](https://forum.generic-mapping-tools.org/t/finding-suitable-colors-for-my-map/6481 "2026-08-20T16:52:35Z")
HI everyone. I am using gmt 6.5.0 in linux, and i am having trouble finding suitable colors for my map. I have attached a scheenshot, and it just looks off. Anyone can help me please? I dont want white on the tibetan gro… --- ## [Invitation to Participate in the monthly GMT Advisory Meeting - August 12, 01:30 UTC](https://forum.generic-mapping-tools.org/t/invitation-to-participate-in-the-monthly-gmt-advisory-meeting-august-12-01-30-utc/6479)
**Author:** [@SolarEarth](https://forum.generic-mapping-tools.org/u/SolarEarth)\ **Replies:** 6\ **Last updated:** [August 12, 2026, 6:50pm UTC](https://forum.generic-mapping-tools.org/t/invitation-to-participate-in-the-monthly-gmt-advisory-meeting-august-12-01-30-utc/6479 "2026-08-12T18:50:22Z")
We are continuing our regular monthly meetings. The next meeting is Wednesday, August 12⋅1:30 – 2:30 am UTC. These meetings are open to all GMT users and developers. They provide an opportunity to discuss ongoing develop… --- ## [GMT 6.7.0 release](https://forum.generic-mapping-tools.org/t/gmt-6-7-0-release/6473)
**Author:** [@Joaquim](https://forum.generic-mapping-tools.org/u/Joaquim)\ **Replies:** 9\ **Last updated:** [August 9, 2026, 11:51am UTC](https://forum.generic-mapping-tools.org/t/gmt-6-7-0-release/6473 "2026-08-09T11:51:58Z")
The GMT team is pleased to announce the 6.7.0 release via GitHub Releases. It is the first release in this new crazy AI world and already benefits of it (see Changelog), with lots of bug fixes and PostScript improvements… --- ## [How to calculate the mantle Bouguer anomaly (MBA) and residual mantle Bouguer anomaly (RMBA)](https://forum.generic-mapping-tools.org/t/how-to-calculate-the-mantle-bouguer-anomaly-mba-and-residual-mantle-bouguer-anomaly-rmba/131)
**Author:** [@ghomsi123](https://forum.generic-mapping-tools.org/u/ghomsi123)\ **Replies:** 2\ **Last updated:** [August 7, 2026, 7:10pm UTC](https://forum.generic-mapping-tools.org/t/how-to-calculate-the-mantle-bouguer-anomaly-mba-and-residual-mantle-bouguer-anomaly-rmba/131 "2026-08-07T19:10:28Z")
Hi, Currently, I am using an ASCII grid and I would like to calculate the MBA and RMBA. Since I am working on the land (continent), it is necessary to use the bathymetry to compute the effect of the water or should I u… --- ## [Multiple colorbars changes the annotation fontsize](https://forum.generic-mapping-tools.org/t/multiple-colorbars-changes-the-annotation-fontsize/4945)
**Author:** [@JonathonLeonard](https://forum.generic-mapping-tools.org/u/JonathonLeonard)\ **Replies:** 18\ **Last updated:** [August 2, 2026, 10:39am UTC](https://forum.generic-mapping-tools.org/t/multiple-colorbars-changes-the-annotation-fontsize/4945 "2026-08-02T10:39:01Z")
Hi I’m plotting multiple colorbars side-by-side with different widths, and having trouble where the annotation size seems to scale with the colorbar width. I’ve done a lot of googling and a lot of trial and error and ca… --- ## [Psscale (colorbar) and its label font size](https://forum.generic-mapping-tools.org/t/psscale-colorbar-and-its-label-font-size/6472)
**Author:** [@carlosfherrera](https://forum.generic-mapping-tools.org/u/carlosfherrera)\ **Replies:** 8\ **Last updated:** [July 31, 2026, 6:07pm UTC](https://forum.generic-mapping-tools.org/t/psscale-colorbar-and-its-label-font-size/6472 "2026-07-31T18:07:12Z")
Dear community, I’ve been using GMT for several years and recently updated to GMT 6.6.0. In this version I noticed that the font size of the color bar labels change depending on the color bar length. For example: The sh… --- ## [Unstructured grid plots](https://forum.generic-mapping-tools.org/t/unstructured-grid-plots/6469)
**Author:** [@Secchi](https://forum.generic-mapping-tools.org/u/Secchi)\ **Replies:** 1\ **Last updated:** [July 22, 2026, 9:58am UTC](https://forum.generic-mapping-tools.org/t/unstructured-grid-plots/6469 "2026-07-22T09:58:22Z")
Dear community members, Anyone has some have solved a way to plot unstructured grids in pygmt? I need to workout in something faster for animations and nice color interpolation among the elements. I couldn’t find some… --- ## [Lambert projection with region of interest](https://forum.generic-mapping-tools.org/t/lambert-projection-with-region-of-interest/6470)
**Author:** [@montesi](https://forum.generic-mapping-tools.org/u/montesi)\ **Replies:** 1\ **Last updated:** [July 21, 2026, 9:46pm UTC](https://forum.generic-mapping-tools.org/t/lambert-projection-with-region-of-interest/6470 "2026-07-21T21:46:23Z")
I’m trying to make a equal-area map over a few ROIs with minimal local distortion. It looks like Lambert azimuthal should work, but the result always shows the entire globe, not just the ROI. Here’s an example taken from… --- ## [Cannot import name 'Axis' from 'pygmt.params'](https://forum.generic-mapping-tools.org/t/cannot-import-name-axis-from-pygmt-params/6443)
**Author:** [@jeromechine](https://forum.generic-mapping-tools.org/u/jeromechine)\ **Replies:** 4\ **Last updated:** [July 20, 2026, 10:43pm UTC](https://forum.generic-mapping-tools.org/t/cannot-import-name-axis-from-pygmt-params/6443 "2026-07-20T22:43:35Z")
Hi, I’m new to PyGMT. I’m trying to run these two lines: import pygmt from pygmt.params import Axis, Frame but I get the warning: ImportError: cannot import name 'Axis' from 'pygmt.params' (C:\\Users\\jerom\\anaconda3\\e… --- ## [PyGMT v0.19.0 released](https://forum.generic-mapping-tools.org/t/pygmt-v0-19-0-released/6464)
**Author:** [@yvonnefroehlich](https://forum.generic-mapping-tools.org/u/yvonnefroehlich)\ **Replies:** 0\ **Last updated:** [July 17, 2026, 8:43pm UTC](https://forum.generic-mapping-tools.org/t/pygmt-v0-19-0-released/6464 "2026-07-17T20:43:13Z")
PyGMT v0.19.0 released The PyGMT team is delighted to announce the release of PyGMT v0.19.0 just before the holiday season :beach\_with\_umbrella:! This release accompanies the publication of the PyGMT paper … --- ## [i'GMT](https://forum.generic-mapping-tools.org/t/igmt/6461)
**Author:** [@Joaquim](https://forum.generic-mapping-tools.org/u/Joaquim)\ **Replies:** 0\ **Last updated:** [July 17, 2026, 4:59pm UTC](https://forum.generic-mapping-tools.org/t/igmt/6461 "2026-07-17T16:59:02Z")
Hi, About 2 months ago I announced the GMTF3D scratch of GMT GUI, but it turned out that it was a dead end (but a very educative one) due to the impossibility of passing upstream the modifications needed in the source … --- ## [GMT Forum Migration to Discourse hosted service](https://forum.generic-mapping-tools.org/t/gmt-forum-migration-to-discourse-hosted-service/6402)
**Author:** [@SolarEarth](https://forum.generic-mapping-tools.org/u/SolarEarth)\ **Replies:** 8\ **Last updated:** [July 17, 2026, 6:41am UTC](https://forum.generic-mapping-tools.org/t/gmt-forum-migration-to-discourse-hosted-service/6402 "2026-07-17T06:41:30Z")
We are currently migrating Generic Mapping Tools web services from the University of Hawaii to infrastructure managed by the EarthScope Consortium. As part of this effort, a prototype of this forum is now available as a… --- ## [How to cite PyGMT](https://forum.generic-mapping-tools.org/t/how-to-cite-pygmt/382)
**Author:** [@liamtoney](https://forum.generic-mapping-tools.org/u/liamtoney)\ **Replies:** 4\ **Last updated:** [July 16, 2026, 11:49pm UTC](https://forum.generic-mapping-tools.org/t/how-to-cite-pygmt/382 "2026-07-16T23:49:11Z")
I used PyGMT to create some figures on a manuscript. I’d like to cite PyGMT (along with GMT, which was also used stand-alone). What should I cite? @leouieda I see you’ve got a few talks/posters. Aside: With open-source … --- ## [PyGMT paper "PyGMT: Bridging Python and the Generic Mapping Tools for Geospatial Visualization and Analysis" published in G-Cubed](https://forum.generic-mapping-tools.org/t/pygmt-paper-pygmt-bridging-python-and-the-generic-mapping-tools-for-geospatial-visualization-and-analysis-published-in-g-cubed/6460)
**Author:** [@yvonnefroehlich](https://forum.generic-mapping-tools.org/u/yvonnefroehlich)\ **Replies:** 0\ **Last updated:** [July 16, 2026, 5:46pm UTC](https://forum.generic-mapping-tools.org/t/pygmt-paper-pygmt-bridging-python-and-the-generic-mapping-tools-for-geospatial-visualization-and-analysis-published-in-g-cubed/6460 "2026-07-16T17:46:01Z")
The PyGMT team is super happy to announce that the PyGMT paper was finally published in G-Cubed: Tian, D., Fröhlich, Y., Leong, W. J., Grund, M., Schlitzer, W., Jones, M., Uieda, L., Luis, J. M. F. (2026). PyGMT: Bridg… --- ## [GMT Advisory Group monthly meeting summary for July 9, 2026](https://forum.generic-mapping-tools.org/t/gmt-advisory-group-monthly-meeting-summary-for-july-9-2026/6459)
**Author:** [@SolarEarth](https://forum.generic-mapping-tools.org/u/SolarEarth)\ **Replies:** 1\ **Last updated:** [July 10, 2026, 5:13pm UTC](https://forum.generic-mapping-tools.org/t/gmt-advisory-group-monthly-meeting-summary-for-july-9-2026/6459 "2026-07-10T17:13:25Z")
Quick recap (Zoom AI Companion) The GMT team held their regular meeting to discuss the upcoming 6.7 release and infrastructure updates. Solar reported progress on setting up the EarthScope version of the remote data serv… --- ## [Writing equations in forum posts - Discourse math](https://forum.generic-mapping-tools.org/t/writing-equations-in-forum-posts-discourse-math/3529)
**Author:** [@Andreas](https://forum.generic-mapping-tools.org/u/Andreas)\ **Replies:** 18\ **Last updated:** [July 10, 2026, 12:10pm UTC](https://forum.generic-mapping-tools.org/t/writing-equations-in-forum-posts-discourse-math/3529 "2026-07-10T12:10:45Z")
Would you consider enabling a module that allows one to write math easily? E.g. Discourse math. --- ## [Centering annotations on discrete colorbar bins](https://forum.generic-mapping-tools.org/t/centering-annotations-on-discrete-colorbar-bins/6457)
**Author:** [@henriws](https://forum.generic-mapping-tools.org/u/henriws)\ **Replies:** 4\ **Last updated:** [July 9, 2026, 8:09am UTC](https://forum.generic-mapping-tools.org/t/centering-annotations-on-discrete-colorbar-bins/6457 "2026-07-09T08:09:24Z")
Version: GMT 6.6.0 OS: Ubuntu Linux Hello everyone, I am trying to create a discrete horizontal colourbar where the numerical annotations sit centrally beneath each colour bin rather than at the bin edges. Currently,… --- ## [Invitation to Participate in the GMT Monthly Meeting – June 11, 18:00 UTC](https://forum.generic-mapping-tools.org/t/invitation-to-participate-in-the-gmt-monthly-meeting-june-11-18-00-utc/6452)
**Author:** [@Esteban82](https://forum.generic-mapping-tools.org/u/Esteban82)\ **Replies:** 1\ **Last updated:** [June 12, 2026, 3:40pm UTC](https://forum.generic-mapping-tools.org/t/invitation-to-participate-in-the-gmt-monthly-meeting-june-11-18-00-utc/6452 "2026-06-12T15:40:07Z")
Hello, We are continuing our regular monthly meetings. These meetings are open to all GMT users and developers. They provide an opportunity to discuss ongoing developments, share experiences, ask questions, and contribu… --- ## [Help grdflexure](https://forum.generic-mapping-tools.org/t/help-grdflexure/6442)
**Author:** [@MariaG](https://forum.generic-mapping-tools.org/u/MariaG)\ **Replies:** 1\ **Last updated:** [June 9, 2026, 3:46pm UTC](https://forum.generic-mapping-tools.org/t/help-grdflexure/6442 "2026-06-09T15:46:49Z")
Hello everyone, I’m trying to model the flexure of the Juan Fernández Ridge using the GMT command grdflexure. Specifically, I am working on a section between Alejandro Selkirk Island and Robinson Crusoe Island. However… --- ## [Bringing the third dimension to GMT: Stereograms](https://forum.generic-mapping-tools.org/t/bringing-the-third-dimension-to-gmt-stereograms/6189)
**Author:** [@timhume](https://forum.generic-mapping-tools.org/u/timhume)\ **Replies:** 17\ **Last updated:** [June 9, 2026, 2:59pm UTC](https://forum.generic-mapping-tools.org/t/bringing-the-third-dimension-to-gmt-stereograms/6189 "2026-06-09T14:59:06Z")
Here’s a very simple way to create “3D” stereograms using GMT. The demonstration is for the “cross-eye” method. It is easy enough to make stereograms for the “parallel” method, but supposedly most people find the cross-e… --- ## [Bug with psconvert? gmt begin \ png fails, but gmt begin \ png,ps works](https://forum.generic-mapping-tools.org/t/bug-with-psconvert-gmt-begin-name-png-fails-but-gmt-begin-name-png-ps-works/6423)
**Author:** [@Esteban82](https://forum.generic-mapping-tools.org/u/Esteban82)\ **Replies:** 5\ **Last updated:** [June 8, 2026, 9:40pm UTC](https://forum.generic-mapping-tools.org/t/bug-with-psconvert-gmt-begin-name-png-fails-but-gmt-begin-name-png-ps-works/6423 "2026-06-08T21:40:27Z")
Hi, I recently reinstalled my operating system (Kubuntu 26.04) and noticed a strange issue with GMT. The following script works as expected: gmt begin 3 png,ps gmt basemap -R0/1/0/1 -Baf gmt end However, if I rem… [Next page](https://forum.generic-mapping-tools.org/latest.md?page=1)