Robin Wilson    Summary: You can use QGIS expressions to set the default path for an Attribute Form to be something like project folder ’ ’ ’MapGraphs’, which gives you a default path that is relative to the project folder but also has other custom subfolders in it. I spent a while redrafting the title of...

Robin Wilson    In I wrote about some of my favourite books I read that year and I never got round to doing a follow up post with books from , etc. Finally, in I’m actually going to write up some of these books. I’ve read around books since the start of , and a

Robin Wilson    I came up with an interesting plan for an artistic map recently more on that when I’ve finished working on it , and to create it I needed to be able to calculate a large number of driving routes around Southampton, my home city. Specifically, I needed to be able to get lines showing the driving

Robin Wilson    This is a bit different to what I usually post on this blog which is usually technical content about GIS, remote sensing, Python and data analysis see a few example posts , and this is part of April Cools a group of bloggers writing posts that are unusual for them, but still good content.

Robin Wilson    As an Easter present for you all, I’ve got a new web app you can play with. It lets you search for UK place names things like ends with burgh’ or starts with great’ or contains sea’ and then plot them on an interactive map. Once you’ve done that, you can even share

Robin Wilson    This is only about years late but I gave a talk at FOSS G on geospatial PDFs. The full title was: From static PDFs to interactive, geospatial PDFs, or, I never knew PDFs could do that ’ The video is below: In the talk I cover what a geospatial PDF is, how to export

Robin Wilson    Here’s a bit of SQL I wrote recently that had an error in it which I struggled to find. The error I got was ERROR: invalid reference to FROM clause entry for table roads and I did some Googling but nothing really seemed to make sense as a cause of this error. My SQL looked like

Robin Wilson    Summary: It might be because there is an exception raised when importing your function app.py for example, caused by one of your import statements raising an exception, or a parsing error caused by a syntax error. I was deploying a FastAPI app to Azure Functions recently. Azure Functions is the...

Robin Wilson    Summary: If appending to a PostGIS table with GDAL OGR is taking a long time, try setting the PG USE COPY config option to YES eg. adding config PG USE COPY YES to your command line . This should speed it up, but beware that if there are concurrent writes to your table at the same time as OGR is...

Robin Wilson    I ran into a situation recently where I needed to create a Windows bootable USB stick. I could easily download a Windows 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...