DARREN COPE

QGIS has a great feature that allows you to create pie charts for feature symbols! I have known about it for a while, but never really had the opportunity or reason to play with it. However, this post on gis.stackexchange.com prompted me to take a look. Here’s a quick summary of how the ‘Diagrams’ functionality [...]

As we all know, there’s almost always more than one way to do something! In a previous post (QGIS Trace Edit Tool) I discussed how to use QGIS’ trace edit plugin to create a polygon adjacent to an existing polygon while ensuring that it is topologically correct. With a bit more experimentation, I’ve found a [...]

As you probably know, I love QGIS. It’s a fantastic tool that gets better on an almost daily basis. However, as with most open source projects, the documentation is often lacking. I found this to be the case when I wanted to use the “Trace Edit” tool. It’s a plugin, and installed using the Plugin [...]

If you’ve used GRASS at all, you’ve probably seen a message that looks like this: Depending on which version of GRASS you’re running, or your OS, the dialog box may look different (this one shown is from a GRASS session running inside QGIS; coincidentally my fvourite way to run GRASS….) but the message will be [...]

Here’s another quick post on the use of OGR for a simple yet often annoying task; renaming fields in a Shapefile. We’ve all had a Shapefile with column names that make no sense (10 character limit anyone?) or with fields that were manually created by some geoprocessing tool and given a random name upon output. [...]