This Python package and extensions are a number of tools for programming and manipulating the GDAL Geospatial Data Abstraction Library. Generally speaking the classes and methods mostly match those of ...

Raster point extraction is I/O bound: reading and decompressing tiles from disk or network is the bottleneck, not the arithmetic of classifying points to tiles or indexing values. Parallelizing tile ...

I started by trying to use pip and virtual-env. This obscure how-to (and first post on Medium!) comes to you after hours of googling and trying to debug the errors I encountered along the way. In the ...

Recently, I played with the global 30-m land-cover data of GLC_FCS30-2020. The data are grouped by 948 5X5 degrees regional tiles in the GeoTIFF format, which are ...

I once did a project where I analyzed extreme precipitation at different duration and return periods (i.e., Depth Duration Frequency-DDF) at several sites. These sites locate close to each other.

法務省法務局は2023年1月に、地籍調査の成果である土地登記の地図データをウェブ上に公開しました。これを使って自分の街の土地区画をウェブマップ化したので、その過程を紹介します。 作成したもの 公開データを使って作成したのは、私が住んでいる ...