Mark Harrower

Map nerd. Passionate about great design, teaching, and doing cool things with data.

Posts by this author
Group Layer Items: A new way to build and share content

Export complex mapping content as a single Group layer for easy sharing and reusing

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Announcing Media Layers for adding images to web maps

Incorporate images or scanned paper maps directly into your work

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Aggregation-o-rama! Binning, Clustering, and Clustered Pies now in Map Viewer

The November 2022 update of Map Viewer expands options for aggregating data on-the-fly

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Getting the most from Texture Fills in Map Viewer

Use texture fills to highlight regions or to denote uncertainty

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Thematic Mapping 101: How to ask and answer questions in a map

Learn how to use different kinds of thematic maps in ArcGIS Online to explore your data, ask and answer questions, and tell your data's story.

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Next-Generation Heat Maps in Map Viewer: Better, faster, smoother, stronger

Heat maps now supports filtering, labeling, pop-ups, and greatly improved performance.

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New Charts and Charts & Size map styles help us make sense of all the numbers

Map Viewer adds much-requested maps of pie and donut charts

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Map Viewer introduces animated Flow renderer

Imagery data with magnitude and direction can now be visualized with animated flowlines and wavefronts

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Feature-Specific Effects: The next enhancement for Map Effects

Use Effects in Map Viewer to emphasize some features while de-emphasizing others.

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