# großformat (blogs) — RSS Amplifier Recent posts from the 1 feeds in the RSS Amplifier directory that cover großformat. Page: Feed: --- ## [Hatching, Hachures, and Contour Lines - Shaded Reliefs for Pen Plotter Maps](http://volzo.de/posts/hatching-hachures-contours/) _2025-04-24 · Christopher Getschmann · volzo_ In mapmaking, one of the oldest problems is finding a visually pleasing way to represent elevation using just two dimensions (or as Edward Tufte would call it: trying to escape flatland). ## [Speeding Up Python with Rust and No Prior Knowledge](http://volzo.de/posts/rust-in-python/) _2025-04-13 · Christopher Getschmann · volzo_ Python is a great language and if you prioritize prototyping and getting results quickly (as I do with most of my projects) the trade-offs between programmer productivity and processing speed are fine for me. The really time-consuming parts are outsourced to numpy, OpenCV, or other “fast” libraries with compiled code, and the speed of my Python code (or lack thereof) is negligible. Ultimately, my… ## [Motorized Spray Can Cap](http://volzo.de/posts/motorized-spray-can/) _2025-03-14 · Christopher Getschmann · volzo_ For an art project I needed a lightweight way to trigger spray cans with a motor.