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Time Sliders and Time Sensitive Texts

November 23 2011 | 1 comment
Categories: Labeling, Temporal Mapping

I have a map of flight plans between 1946 and 1960, with individual layers for groups of flight plans--15 total, all marked with time values in their attribute tables and time enabled on them. Unfortunately, only one of the layers actually displays when using the time slider (it's identical to the other layers, except for the date values). Is 15 layers too many for the software to handle?

Additionally, is there a way to create a time sensitive text body--sort of like a shapefile that is set to a time, but instead with a body of text?

Mapping Center Answer:

I do not think we set any limits on the number of time-aware layers you can have in one map. Technically, there should not be a problem with handling 15 layers. This leads me to think that something else may be wrong.

One way to test if it is your data is to merge some or all of the data into one feature class and see if the time functions work with that. If they do then you have found that there is a limit to the number of featrue classes. If it doesn't then there may be something wrong with your data. Check the format of all the time attributes -- they might be slightly different or they may be defined incorrectly.  Either way, we would really appreciate hearing back from you to know if either of these solutions worked for you.  Maybe you could send us a comment to this thread?

For the request for information on the text body, the best way would be to use an annotation layer with time values associated with each features.

A bit more info posted by Aileen Buckley on Dec 1 2011 11:02AM
As long as the time fields have been defined correctly on the layer properties dialog, there should not be a problem. There could be errors in the time values.

Be sure to have the time values stored in a "date" field rhater than something else like a "string" field. Also, use feature classes in a geodatabase because shapefiles cull the time component of the date/time. So, in a shapefile, 12/1/2011 12:51:00 PM will be culled to 12/1/2011.

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