Category: ArcGIS Online

Add tweets to your web map

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Twitter is a free social networking microblogging service that allows users to broadcast short posts called tweets. It’s used widely by individuals, as well as federal and local government agencies, organizations, and businesses. Tweets can include location (a user account … Continue reading

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The Living Atlas of the World now includes the Esri Drought Tracker App

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Esri Drought Tracker allows anyone to explore the current and historic levels of drought intensity affecting the USA from Jan 2000 to present. Drought is a prolonged period of less than normal water conditions. Drought can be recognized as a … Continue reading

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Create a Presentation With Your Map

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Web map presentations are a great way to communicate and inform others, whether your audience is internal staff, decision makers, or the public.  A presentation allows you to tell a sequential story with information in a map, and is composed … Continue reading

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Refreshing dynamic layers automatically

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Some layers in your web map may be dynamic, meaning they are being updated at regular intervals. For example, a GeoRSS feed, earth observations from the Living Atlas, or a feature service being updated by workers performing edits while in … Continue reading

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Pitch Perfect – a mapping experiment

Sometimes a simple idea leads to something quite fascinating. Since its publication in 2013 I was inspired by Louis Spirito’s Baseball’s Many Physical Dimensions poster. The poster shows the relationship between the 30 Major League Baseball ballparks in the USA and provides a fascinating picture of how their spatial dimensions differ. Positioning them in the same imaginary location at the same scale was a great way to juxtapose each ballpark and create something visually interesting and informative. So how might this approach work for other sports? How, for instance, might it work for football (a.k.a. soccer) where the pitch markings at first glance appear consistent with one another?

Despite the apparent regularity of the markings on a football pitch they do in fact differ considerably in overall size because pitch length and width can vary within certain minimum and maximum dimensions. Then there’s the orientation as pitches can align to any point on the compass. The question, then, was…what happens if you map the 92 pitches of English and Welsh professional football clubs accurately and then overlay them? Would it create something interesting? Would most pitches be the same size? Would they overlay neatly or not? The result proved fascinating and the way in which the eventual map produced used remarkably simple techniques in ArcGIS for Desktop. Continue reading

Posted in ArcGIS Online, ArcGIS Pro, ArcMap, Cartographic Design, Editing, Mapping, Open Data | Tagged , , , | 3 Comments

Authoring maps that update using CSV files

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Comma-separated Value files (CSV) and text files can be added from local files or referenced from URL locations on the Web. An interesting feature of adding CSV and text files via URL locations is that each time you open your map, or otherwise refresh the … Continue reading

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World Imagery Adds New and Updated Community Contributions

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The first ArcGIS.com Imagery basemap release of 2016 adds four brand new Community Map contributions and one updated community contribution. These contributions were made to the Living Atlas of the World. See information below about how to become part of … Continue reading

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The New Year Starts with New Content! Updates to the World Topographic Map Available!

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The latest ArcGIS Online release includes new and updated content from our user community. Thank you to our Contributors and Partners who help support the Living Atlas of the World by providing data and enriching Esri’s online basemaps.  This release incorporates new and updated coverage … Continue reading

Posted in 3D GIS, Apps, ArcGIS Online, Cartographic Design, Community Maps, Imagery, Local Government, Mapping, National Government, Open Data, State Government, Story Maps, Web | Tagged , , , , , , , , , , | Leave a comment

Using KML in ArcGIS Online web maps

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KML (Keyhole Markup Language) is an XML-based format used to represent geographic features. Original developed for Keyhole’s Earth Viewer, KML became ubiquitous when Keyhole was acquired by Google, and Earth Viewer became Google Earth. KML is supported throughout ArcGIS in … Continue reading

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Legacy Demographic Maps to be Retired in March 2016

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In March, several Esri Demographic layers and maps for the U.S. featuring data from 2012, which have been in mature support and not actively maintained, will be retired. Since 2013, ArcGIS Online has offered a larger collection of U.S. demographic … Continue reading

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