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Make Vector Topographic Maps (Open Street Map, Maperitive, and Inkscape)

How-to Guide to Making Vector Topo Maps with Maperitive and Inkscape

This guide will show you how to generate vector-based topopgraphic maps, for printing very large & high-quality paper wall maps using inkscape. All of the tools used in this guide are free (as in beer).

Intro

I recently volunteered at a Biological Research Station located on the eastern slopes of the Andes mountains. If the skies were clear (which is almost never, as it’s a cloud forest), you would have a great view overlooking the Amazon Rainforest below.

Yanayacu is in a cloud forest on the east slopes of the Andes mountains, just 30 km from the summit of the glacial-capped Antisana volcano (source)

The field station was many years old with some permanent structures and a network of established trails that meandered towards the border of Antisana National Park – a protected area rich with biodiversity that attracts biologists from around the world. At the top of the park is a glacial-capped volcano with a summit at 5,753 meters.

Surprisingly, though Estacion Biologicia Yanayacu was over 30 years old, nobody ever prepared a proper map of their trails. And certainly there was no high-resolution topographical map of the area to be found at the Station.

That
. . . → Read More: Make Vector Topographic Maps (Open Street Map, Maperitive, and Inkscape)

Manually Downloading Container Images (Docker, Github Packages)

This article will describe how to download an image from a (docker) container registry.

Intro

Remember the good ‘ol days when you could just download software by visiting a website and click “download”?

Even apt and yum repositories were just simple HTTP servers that you could just curl (or wget) from. Using the package manager was, of course, more secure and convenient — but you could always just download packages manually, if you wanted.

But have you ever tried to curl an image from a container registry, such as docker? Well friends, I have tried. And I have the scars to prove it.

It was a remarkably complex process that took me weeks to figure-out. Lucky you, this article will break it down.

Examples

Specifically, we’ll look at how to download files from two OCI registries.

Docker Hub GitHub Packages Terms

First, here’s some terminology used by OCI

OCI – Open Container Initiative blob – A “blob” in the OCI spec just means a file manifest – A “manifest” in the OCI spec means a list of files Prerequisites

This guide was written in 2024, and it uses the following software and versions:

debian 12 (bookworm) curl 7.88.1 OCI
. . . → Read More: Manually Downloading Container Images (Docker, Github Packages)