Mapboxはウェブマッピングツールキットの定番、geojson.ioのアップデートを行いました。この記事では、過去数ヶ月間にどのようにgeojson.ioを改良し、今後メンテナンスがしやすいようにしていったかを簡単に説明します。 私（筆者クリス氏）はこのツールを何 ...

Unityで経緯度など地理情報と連携したアプリの開発を行う際に、一般的な地理情報データのフォーマットを扱いたい場合が ...

A Polygon's exterior ring must have counterclockwise winding order (often abbreviated ccw). This is often overlooked when manually creating Polygons or converting from other formats. As an older ...

The output is in a type of deepzoom format, which makes a lot of sense if you want to visualize it in a web-based viewer. However, if you want to use GeoJSON for some reason, this is a way to convert ...

The CBC covered the recent (as of the original post-time on this blog entry) Quebec elections and used a well-crafted hex grid map to display results: They have a ...