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I made an animated map of ship movements in the Straights of Hormuz using data from marinetraffic.com. Ship track frames rendered using #ggplot, base map created using #gdal, video editing using #ffmpeg, video player written in #svelte. 🎁 www.zeit.de/wirtschaft/2...

zeit.deStraße von Hormus: So legt der Krieg die Straße von Hormus lahmSeit Samstag droht der Iran damit, Schiffe anzugreifen, die die Straße von Hormus passieren. Sehen Sie hier, welche Folgen das für den Verkehr in der Meerenge hat.

Jonas Schöley

@jschoeley.com

4 Mar

Very effective and informative. Thank you for sharing. Just out of curiosity: Why was there a need for a custom video player?

Gregor Aisch

@driven-by-data.net

I wanted to be able to adjust the video crop last-minute (without re-rendering), so I didn’t want to bake the timestamps into the frames. And I had just built a custom video player for a separate project - with support for HTML subtitles - so this was a nice use case.

4/3/26, 4:34 pm0 reposts1 like

Gregor Aisch

@driven-by-data.net

4 Mar

Second reason is that I wanted to fully control the player UI, autoplay, the scrub bar, overlays etc. With standard players like YouTube you’re limited in that regard.

Jonas Schöley

@jschoeley.com

5 Mar

Thank you. Working with gif as output format for animated data viz in the past I realized that a separate video editing step would help in getting the details right. I'll try your toolchain next time.