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Labels for custom time steps

July 19 2011 | 0 comments
Categories: Labeling

At the It's about Time! Methods for Visualizing Space-Time Data talk at the 2011 UC, Ken Field mentioned creating labels for custom time steps by creating time-aware graphic features on the map. (The custom time steps are needed to avoid large gaps in the Time Slider for data that is widely spaced apart.)

I'm unclear on how to create such labels for custom timesteps in ArcGIS 10 Desktop SP2 (ArcInfo license), currently the Time Slider lists the steps as 001, 002, 003, ... Ideally I would be able to pull in the timestamp from the underlying query table instead of having to create a graphic feature for each!

Also, will a screencast of the It's about Time! Methods for Visualizing Space-Time Data talk will be available online soon?

Mapping Center Answer:

You can use dynamic text if you want, but unlike the demonstration that Ken showed, that text will update in a single location. If you want to use dynamic text, click Insert > Dynamic Text > Data Frame Time. To create the effect that Ken demonstrated, you will need to digitize geographic point features at the locations you want the text to appear and then add an attribute to those features that contains the time value. Then when set the properties on that layer, enable the option to Label features on this layer (on the Labels tab) and enable time on that layer (on the Time tab). Then the labels should appear in the locations that you digitized when you use the Time Slider toolbar to animate the display.

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