Show HN: vectorvector – CLI for Contour Lines and Hillshade Generation

5 points

a year ago

I’ve built vectorvector, an open-source CLI tool for working with elevation data.

Key features:

* Generates contour lines (vector), hillshade tiles (raster), and terrarium tiles (raster elevation)

* Processes the entire planet in ~7 hours on consumer hardware

* Algorithms: Marching Squares for contours, Horn for hillshade, and Ramer–Douglas–Peucker for line simplification

Benchmarked on a MacBook Pro (M2, 64 GB RAM). Output is customizable and aimed at developers and GIS enthusiasts.

Would love to hear your thoughts and feedback! Repo: https://github.com/greensopinion/vectorvector