Ruby-LibGD with 2D/3D Plots in Jupyter

Learn how to use ruby-libgd to create stunning 2D and 3D plots directly in Jupyter Notebooks! In this comprehensive tutorial, we'll explore the powerful graphics capabilities of ruby-libgd, from basic functions to advanced 3D visualization.

https://youtu.be/-yMG0GzatNw

#Ruby #DataVisualization #Jupyter #LibGD #Programming #GraphicsProgramming #3DPlots #Coding #Tutorial #DataScience

Ruby-LibGD with 2D/3D Plots in Jupyter

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Maps don’t always need to be interactive.

With libgd-gis v0.4.1, maps can now include built-in legends, rendered directly into the image — fully server-side in Ruby.

This makes maps self-explanatory artifacts:
• no frontend
• no JavaScript
• no screenshots
• style-driven rendering
• optional post-processing via map.image

https://rubystacknews.com/2026/02/10/when-maps-explain-themselves-legends-style-and-finished-images-in-ruby/

#Ruby #GIS #OpenSource #ImageProcessing #libgd

When Maps Explain Themselves: Legends, Style, and Finished Images in Ruby

February 10, 2026 Introduction libgd-gis now supports legends, introducing a fundamental building block in map communication. With the release of v0.4.1, legends become a first-class feature of the…

Now open for 2026 sponsorships
Upgraded to #NetBSD 10.1 and latest #pkgsrc, but the problem persisted.

Online searches revealed that an incompatibility between raqm and gd caused this problem. I managed to rebuild gd without raqm support (which I think adds or improves right-to-left font rendering capabilities for arabic and hebrew, which I don't need), and now it's all back to normal.😁

Add the following line to /etc/mk.conf:

PKG_OPTIONS.gd= -raqm

#libgd #raqm #zabbix #fonts

every so often i remember that the @sito project #gridcosm has a little graph of weekly activity. 📉 this is made by a cronjob that uses #libgd and #perl to make the image. it has just been quietly doing this for probably 15+ years(!) now. (on data that is > 25 years old). ⚙️

https://www.sito.org/cgi-bin/gridcosm/cosmost