- It provides a Pythonic interface for the Generic Mapping Tools (GMT), a command-line program widely used in the Earth Sciences. We rely heavily on new features that have been implemented in GMT 6.0. In particular, a new modern execution mode that greatly simplifies figure creation. These features are not available in the 5.4 version of GMT.
- Build and runtime dependencies¶ Install: Ghostscript; Subversion; CMake (=2.8.5); netCDF (=4.0, netCDF-4/HDF5 support mandatory); libcurl for GMT = 5.4; Optionally install for more capabilities within GMT: PCRE (Regular expression support for gmt convert and -e) Alternatively, for GMT = 5.4.4, or the current SVN version, PCRE2 can be used. GDAL (Ability to read and write numerous grid.
Gmt For Michigan
Start date: Feb 11, 2017 PYGMT: A PYTHON INTERFACE FOR THE GENERIC MAPPING TOOLS We are bringing the power of GMT to Python through a wrapper library that relies on the GMT C API. GMT articles on MacRumors.com. After widespread complaints over the past five months, the so-called 'rs'GMT bug' affecting iOS 8 calendar users appears to have been at least partially fixed.
1.1. What is GMT?¶
GMT is the short for Generic Mapping Tools. As the name suggested, it is designed for geographical mapping for different purposes. This idea was first initiated in 1988 by Pål (Paul) Wessel and Walter H. F. Smith, who were graduate students at Lamont-Doherty Earth Observatory, and the package was first released in 1991 [1]. After its release, people soon found how useful and powerful it was, and their feedback became the driving forces of two authors and the whole GMT developing team. Thirty years later, GTM has become a popular tool for geographical mapping, and the development team just released its sixth edition in November 2019 [2]. For academic fields like geophysics or oceanography, GMT is now almost a must-have for plotting scientific data.
As “generic” mapping tools, GMT is, of course, capable of different types of scientific plots. GMT’s built-in commands can deal with many common types of scientific figures. However, what makes this package so powerful is GMT is very good at processing geographical data and plotting them, thanks to the core algorithms that are bound to the concept of GIS. GMT uses PostScript as the vectorized map output format; a high-resolution, beautiful map only takes you little time with multiple, well-designed console commands.
1.2. Should I use GMT?¶
If you need to make some maps, no matter it is global or only around your home, GMT is always a good choice. However, GMT suits better for scientific mapping because all the data and observations are easy to be processed by various built-in commands. It is easy to visualize geospatial data together with your analysis together on a map if using GMT. Here I highly recommend GMT for the following kinds of people:
- If you have tons of data and want to show them on a map, like precipitation, bathymetry, global volcano distribution, etc.
- If you make maps pretty often and feel that GIS software has always slowed your working efficiency. Learning how to plot using command-line tools should improve your work and save your time by a lot.
The only trouble to get a swing of GMT is, however, you need to write some command-line prompts to get GMT work. For those who have never used consoles like cmd or Linux terminal, it means a steep learning curve. Fortunately, the syntax of the GMT built-in commands are not hard to learn, and we only need a few other console commands that are not from GMT in many cases. That means as long as we have learned the basics of in command-line interface, we would be ready to master GMT. Please go to Basic Concepts and Terms for more details.
Gmt Format Time
1.3. About the tutorials¶
I am a graduate student in geophysics and planetary sciences with several years of GMT experience. I’m always struggling to find excellent and easy-to-understand GMT tutorials, which is frustrating and means more time to get used to this software. Thus, I decided to write some of my scripts and thoughts down and designed them as step-by-step tutorials. Beginners should be able to follow the path through every chapter and get more senses gradually. If you’ve already got some tastes before, these tutorials should also work as a reference book, and you can always look up for specific questions.
You can find every level of difficulty in these tutorials. The beginning chapters are for a person who has never tried command lines. Later, the content shifts to some advanced script workflows. The best way to learn GMT is to do it yourself rather than any online resources and these tutorials. With that in mind, I have provided all the data for plotting in each chapter. Feel free to download them and make a map that even surpasses the one I made!
1.4. How to install GMT¶
Gmt For The Macula
It’s not hard to install GMT as the official site already provides installing instructions and building instruction. Note that if you choose to install GMT, you will likely get an older version. For example, you can only download GMT 5.2 from the Ubuntu official server. If you would like to use the latest release of GMT, you have to build it yourself.
All of the installation files are on the Download Page. Windows users should choose .exe, Mac users should use .dmg, and Linux users can install GMT through .tar files. Note that on the old GMT website, you can download two extra databases: dcw-gmt and gshhg-gmt. It is highly recommended to download and extract them before installing GMT, as they provide some common and useful geographical data. When installing GMT, it will ask the path to these two databases. Their contents are:
- DCW (Digital Chart of the World): basic vector data, like country borders, populated areas, etc.
- GSHHG (Global Self-consistent, Hierarchical, High-resolution Geography): vector data in multiple scales of resolution, like coastal lines, rivers, lakes, state borders, etc.
Gmt Machine Feet
| [1] | Wessel, P., and Smith, W. H. F. (1991). Free software helps map anddisplay data, EOS Trans. AGU, 72(41), 445–446.doi.org/10.1029/90EO00319. |
Gmt Format Date
| [2] | Wessel, P., Luis, J., Uieda, L., Scharroo, R., Wobbe, F., Smith, W. H. F.,and Tian, D. (2019). The Generic Mapping Tools Version 6. Geochemistry,Geophysics, Geosystems, 20.doi.org/10.1029/2019GC008515. |