Tag Archives: ArcGIS
Coordinate systems and projections for beginners
This blog post gives a basic introduction to coordinate systems and projections, with a focus on UK data. To seasoned geographers, I apologise for all the things I’ve simplified or simply left out! My intention is to provide GIS novices … Continue reading
Continue ReadingConsidering colour vision deficiency when designing maps
A few months ago I was given the opportunity to visit a client to discuss cartography and how they can communicate spatial information in an efficient and effective manner. Whilst preparing for the visit, I started to investigate Colour Vision … Continue reading Continue Reading
Creating Animated or Time Aware Hotspots
One of the challenges I often face is trying to show how clusters of events (e.g. crime locations) have changed over time. ArcGIS through Spatial Analyst and/or Crime Analyst allows you to create great hot-spot maps for a period in … Continue reading
Continue ReadingA Cautionary Tale
ESRI inc have always stated that ArcGIS service packs should be installed across the board, especially since the ubiquity of Direct connect, so Desktop, ArcGIS server and geodatabase should all be upgraded together. I’m sure we’ve all been very blasé … Continue reading Continue Reading
ArcGIS Mobile
Recently one of my colleagues in our team asked me how he could use ArcGIS Mobile on his desktop without a server licence. This got me looking for information on how this can be done. One of the outcomes of … Continue reading
Continue ReadingWhat search distance should I use when I create a hotspot map?
When using some of the Spatial Statistics tools (such as the Getis-Ord Gi*) or when undertaking a Point Density Analysis it is sometimes hard to know what search distance to set. There are different strategies for defining the optimal distance: You could … Continue readin
Continue ReadingTip for working with many colour ramps in ArcMap
I have recently started using some of the Colour Ramps available at the Esri Mapping Centre which are great for symbolising a variety of continuous surfaces and build on the out of the box ramps provided in ArcGIS. The downloadable colour ramps (from here) have … Continue Reading
Visualising Commuter Movements of Londoners
With the availability of Open Data from the Ordnance Survey and some of the really interesting publicly avialable data from web sites such as the London Data Store and data.gov.uk some intriguing maps and analysis can be performed. Here is an example I recently … Continue reading