The Best Laid Plans

In this post we look at different strategies to approach an analysis plan.  (Updated 26 May with additional comments from a colleague.) We talk a lot about analysis on the GIS Blog and there have been a lot of examples with specific tools and how a particular analyses werecarried out.  This is all (hopefully) good after-the-fact stuff, […]

3D Fun

Some hints on creating 3D features in ArcGIS Pro One of the nice things that ArcGIS Pro does better than previous versions is handling data in 3D.  Using scenes, it’s become a lot easier to put together nice visualisations.  For instance, below I’ve got a viewshed generated from a set of five points that represent […]

Deleting Smokers – Closing the Loop(s)

The last of our series on developing a Python script for some smoking reduction analysis. Long term readers of the GIS Blog (Hi Mum!) may recall a series of posts on the development of a Python script for some analysis.  As part of the smoking reduction analysis I’ve been involved with over the years, we […]

Deprived Data

Some quick data amalgamation tasks are tackled with spatial joins, Near and some table joins. Over the years we’ve spent time talking about the smoking reduction research I’ve been involved with. (Ed. Who’s this we, kemosabe?)  It’s had me doing geocoding (and this), Network Analysis, a lot of Python scripting and lots of little data amalgamation jobs […]

Atlas Would Be Jealous

In this post we look at creating a map series of similarly formatted maps. Here a GIS Central we recently started some work looking at the carrying capacity of cruise ships in Fiordland.  There was some field work involved so to carry out some of the work, the good people at Pacific Eco-Logic needed some maps, […]

Finding the Way in Wadi Hadhramaut

We look at georeferencing a map from Freya Stark’s travels in south Yemen, 1936, in this post. So I’m a bit of reader in my (ahem) spare time and am firmly in the camp of Scout from To Kill a Mockingbird, who said, “…I never loved to read.  One does not love breathing.”  Of course […]

Setting Free the Map

Some places make for challenging map making.  In this post we look at one way of working with the dragonfly data to produce a (hopefully) effective map. In a previous post we looked at massaging some spatial data from Wallis and Futuna to make them mappable.  One of the end results of those data was […]

Those Unformatted Dragonflies Again…

Analysis and mapping is almost always preceded by time spent getting data ready to be mapped.  In this post we cover an instance of reformatting some raw spatial data so that they can be used for mapping. Over the years, there have been a few posts about dragonflies of the Pacific, from using a smartphone app […]

Interesting Election Maps

This post looks at some alternative mappings of the recent 2020 US presidential election Election coverage seems to love maps, but they can sometimes misrepresent outcomes as we’ve seen previously. The GIS Blog tries (but often doesn’t succeed) to be apolitical, even though there’s plenty of force behind the idea that political views have a […]

The Path of Least Resistance

In this guest post, Joesph Zooneveld takes us through least cost path mapping to find a mountains to sea biodiversity corridor of native bush. In a recent GIS course at Lincoln University, I was tasked to find a spatial problem and then solve it using a GIS analysis. Being interested in conservation and biodiversity, I […]