<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>ssl232</author><text>I dabbled in web-based mapping a couple years ago and found the tech stack to be really quite polished. Starting from a database of features from e.g. OpenStreetMap hosted in a Postgres-based PostGIS map server, and geographical boundaries via special shape files, you can write XML files representing the features you wish to see on each layer of the map (using SQL queries intended for PostGIS), and CSS-like style files representing how the features should look. You then set up a tile server (Apache or nginx or whatever) that generates tiles on demand and performs caching. Finally you use a JavaScript library to provide the &amp;quot;slippy map&amp;quot; that users can drag around.&lt;p&gt;All of these layers of the tech stack have FOSS implementations; indeed most of the most widely used ones are FOSS. And then there&amp;#x27;s QGIS (also FOSS) to do most of this in a similar fashion, but offline.&lt;p&gt;As merely a dabbler having a bit of fun, it&amp;#x27;s rather excellent I must say. It would be interesting to hear from anyone working in this field professionally as to how the FOSS tools measure up.</text><parent_chain></parent_chain></comment><story><title>Using QGIS to apply a 1777 style to today&apos;s OpenStreetMap data</title><url>https://manuelclaeysbouuaert.be/projects/ferrargis.html</url></story>
<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>qwertox</author><text>It&amp;#x27;s interesting to see how segmented Antwerpen was back in 1777, what the author describes as hedges.&lt;p&gt;These were usually the result of inheritance, when the land of one owner got split into pieces and each child then got one piece. They got smaller and smaller.&lt;p&gt;I didn&amp;#x27;t think that this was already so extreme in 1777, but comparing it to the other maps, only Antwerpen and Brugge seem to be affected.</text><parent_chain></parent_chain></comment><story><title>Using QGIS to apply a 1777 style to today&apos;s OpenStreetMap data</title><url>https://manuelclaeysbouuaert.be/projects/ferrargis.html</url></story>