How Tag Clouds Work (indiemaps.com)

Zach Johnson has a good post about how Tag Clouds work from a cartographic perspective on his indiemaps.com blog. While we have been trained to scale objects based on their area, he concludes tag clouds might be best scaled by size (height) alone.

I have done some Illustrator scipting that take into account the ink area and the raw results are unsatisfactory and must be scaled again by the width of the tag character count to still make visual sense. All this work does not significantly change how the tag cloud is read (indeed, it may make it harder) and must be done in a graphics environment like Illustrator or Flash (not simple HTML).

Read Zach’s full post here…

zack johnson tag cloud

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