Generic Mapping Tools

Introduction

The Generic Mapping Tools (GMT) offer near endless possibilities for plotting data. Over the years I learnt quite a few things and made quite a few custom symbols. I'd like to share this knowledge on these pages.

Generic Mapping … what?

You came here by accident and wonder what's that all about? Well, GMT is an open source collection of about 80 command-line tools. It is widely used across the Earth, Ocean, and Planetary sciences and a diverse community uses GMT to process data, generate publication-quality illustrations, automate workflows, and make animations.

The software is licensed under the LGPL. You can find more information about the Generic Mapping Tools on the official GMT website.

Share your knowledge

When I first came in contact with GMT during my time at university I was overwhelmed by the steep learning curve it presented to the new user. Luckily, times have changed. GMT 6 brought the so called modern mode which made the first steps with GMT alot easier.

The Generic Mapping Tools are super versatile and can be tweaked in almost any way imaginable. But with this flexibility comes great complexity. I strongly believe the wheel doesn't need to be reinvented by every new user.

Therefore I'd like to share most of my custom symbols and some fancy lines I made in the last couple of years. May it save you some headache.

Custom Symbols

I needed some symbols which weren't availabe with the required properties or not available at all. So I went ahead and made my own. But I didn't stop there and over the time my collection of custom symbols grew.

A lot of my custom symbols are aviation or seafaring related. The collection is rounded off by quite a few symbols outside the beformetioned categories.

Head over to the custom symbols page and have a look around. Maybe you find something useful to you.

Fancy Lines

Solid lines are easy. So are dotted ones. But what if you need a dashed line with an outline which nicely ends and isn't just chopped of at the end? Or a line with arrows? The machinery is there, it's just a bit complicated to use.

On the fancy lines page I give a few examples as a starting point for your experimentation or to use right away.

Borders

Solid lines are easy. So are dotted ones. But what if you need a dashed line with an outline which nicely ends and isn't just chopped of at the end? Or a line with arrows? The machinery is there, it's just a bit complicated to use.

On the fancy lines page I give a few examples as a starting point for your experimentation or to use right away.

CGLS CPTs

Solid lines are easy. So are dotted ones. But what if you need a dashed line with an outline which nicely ends and isn't just chopped of at the end? Or a line with arrows? The machinery is there, it's just a bit complicated to use.

On the fancy lines page I give a few examples as a starting point for your experimentation or to use right away.

UN LCCS

Solid lines are easy. So are dotted ones. But what if you need a dashed line with an outline which nicely ends and isn't just chopped of at the end? Or a line with arrows? The machinery is there, it's just a bit complicated to use.

On the fancy lines page I give a few examples as a starting point for your experimentation or to use right away.

Colors

I found the way the built-in color names are presented in the Docs not ideal for me. That's why I'm reproducing all 663 of them here in a more accessible and intuitive way.


Page last updated: 2022-11-25
Page created: 2018-12-03
kristofkoch.de