I ran into a situation recently where I needed to create a Windows 10 bootable USB stick. I could easily download a Windows 10 ISO file, but I knew that it needed some ‘special magic’ to write it to a USB stick that would boot properly. I tried various solutions (including windiskwriter) but none of […]
I use GeoPandas for a lot of my vector GIS data manipulation in Python. I had a situation the other day where I ended up with duplicates of some geometries in my GeoDataFrame, and I wanted to remove them. The simple way to do this is to use the underlying pandas method drop_duplicates on the […]
Summary: The QGIS Reloader plugin will give you a new QGIS command to reload a layer, very useful when you’re updating a layer in another program and want to refresh QGIS’s view of it. I use QGIS for almost all of my interactive GIS needs. Often I’ll be writing some code in Python that creates […]
Note: This blog post has been updated with a new command for creating an osx-64 environment, after I was contacted by someone from Anaconda telling me a newer, easier way to do this I came across some conda packages that didn’t work properly on my M1 Mac (Apple Silicon – ARM processor) the other day. […]
Just a quick one today to document the solution to a problem I ran into earlier today. I was using Microsoft Planetary Computer to access some Landsat satellite data, and I wanted to run it through the Segment Anything model from Meta, to segment out agricultural fields from the image. I tried to do this […]
I’m giving two talks in the next two weeks, and wanted to publicise them here in case anyone local-ish wants to come. Oxford Cafe Scientifique I’ve spoken at various Cafe Scientifique meet-ups before, and now it’s the turn of the Oxford one. I’ll be giving my talk about the whole range of satellite imaging – […]
In the spirit of my Previously Unpublicised Code series, today I’m going to share Pandas-FSDR. This is a simple library with one function which finds significant differences between two columns in a pandas DataFrame. For example, imagine you had the following data frame: Subject UK World Biology 50 40 Geography 75 80 Computing 100 50 […]
Just a quick one this time… GeoParquet is a cool new-ish format for geospatial data. I’ve tried to use it a couple of times, but always run into issues with my GDAL/OGR install not supporting it. Each time this has led to me giving up, as I couldn’t be bothered to install GDAL from somewhere […]
A fun analysis I did a while back was using the Google Maps API to look at travel times between certain locations over time. I originally got interested in this because I found that travelling from my house to the university (yes, that’s how long ago this started…) seemed to either take a very short […]
As you may be aware, I use a wheelchair for anything over very short distances. This can rather limit my ability to enjoy going to the beach, as wheelchairs don’t really work on sand… There are some ways around this – for example, finding a beach where I can park my wheelchair on the promenade […]