You can explore these maps interactively here, along with more thoughts on the choices. Switching to the new Map Viewer allowed me to create a more nuanced map that visually represented the runners up too: But every map style has its drawbacks and this was giving me a first past the post visualisation.
For a project looking at employment patterns, I used the predominant category option to highlight regional dominance. Presenting data sets that have multiple attributes in a map has always been a challenge. For the new Living Atlas UK earthquake data I’ve been looking at I set the threshold to magnitude of 2 – it defaults to the mean value and you can either slide the bar or double click on the value to set your own value. The above and below mapping option is taken to another level with the ability to combine colour and unique symbols to emphasise the values above or below a threshold. I’d have put that one at the top of the list to remind us all to consider it first.
They are categorised by use case and it’s great to see colour blind friendly as a filter for colour ramps in the dialog (see below). The new Map Viewer gives a much bigger library of colour ramps to use, so we can better fit the symbology of our data to the rest of the map contents. We’re all familiar with using colour ramps to show relative value differences for data attributes in a map. Add a layer to a group, rename it and drag the other layers in… that simple. This may well be the most asked for feature in web maps, but they are coming. I’m sure lots of you have already taken the beta for a spin to see what cool new features you get for your web mapping, but I thought I’d take you on a tour of what’s coming… Group layers We are eagerly awaiting the new Map Viewer coming out of beta – planned for the Spring ArcGIS Online update.
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