I dearest the slide command inwards these maps inwards this Urban Institute interactive. Washington DC - Our Changing City is a study on the population changes happening inwards Washington DC.
The interactive study includes a serial of maps comparison population together with demographic changes inwards the American uppercase betwixt 2000 together with 2010. Each map includes a slide command that allows the user to swipe across the map to compare the differences inwards point maps from the yr 2000 together with 2010.
I've seen this type of slide command used earlier to compare earlier together with afterward photographs. For example, I used a like command to compare aerial imagery from earlier together with afterward the 2011 tornado inwards Tuscaloosa. However this is the start fourth dimension I've seen a slide command used to compare ii dissimilar map layers.
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