Pro ArcPy - Creating Time Slider from Layer

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11-03-2021 02:56 PM
AntonioSiracusa
New Contributor

Hello everyone, 

I am currently trying to connect temporal data from a particular data table from ArcPy to my XY data and am having a bit of trouble. This forum post got me a good starting point, but I'm a bit stumped from here. 

I am essentially trying to replicate the functionality when you do the following actions: 

  1. Click the relevant data table
  2. Go to Settings
  3. Click Time
  4. Assuming you have a column "timestamp":
    1. Set the data column as such
    2. Set unique value for each time point
    3. Set the time format (i.e. "yyyyMMdd")

This generates a time slider on top of the data. 

I manually investigated the data fields using the Python window and tried to reconstruct the code necessary to reproduce it from scratch. I came up with the following code, where "example1" is a data table that has the fields "latitude", "longitude", and "timestamp." The "timestamp" field is in format "yyyyMMdd."

 

import arcpy

p = arcpy.mp.ArcGISProject("CURRENT)
m = p.listMaps("Map)[0]
l = m.listLayers("example")[0]

l_cim = l.getDefinition("V2")
ft = l_cim.featureTable

ft.timeFields = arcpy.cim.CIMVectorLayers.CIMTimeTableDefinition(
    startTimeField="timestamp",
    timeValueFormat="yyyyMMdd"
)

timeReference = arcpy.cim.CIMExternal.TimeReference()
customTimeExtent = arcpy.cim.CIMExternal.TimeExtent()
ft.timeDefinition = arcpy.cim.CIMVectorLayers.CIMTimeDataDefinition(
    useTime=True,
    timeReference=timeReference,
    timeExtentCanChange=False,
    hasLiveData=False,
    customTimeExtent=customTimeExtent
)

ft.timeDisplayDefinition = arcpy.cim.CIMVectorLayers.CIMTimeDisplayDefinition(
    cumulative=False,
    timeInterval=10,
    timeIntervalUnits='esriTimeUnitsUnknown',
    timeOffset=0.0,
    timeOffsetUnits='esriTimeUnitsDays',
    uniqueTimes=[]
)

ft.timeDimensionFields = arcpy.cim.CIMVectorLayers.CIMTimeDimensionDefinition()

l_cim.featureTable = ft
l.setDefinition(l_cim)

l.enable_time()

p.save()

 

 

From what I can tell, this creates a CIM that matches the corresponding CIM that was created when I made a Time Slider in the UI. I checked this through the interactive Python window in ArcGIS Pro. When I do this through the Python script, a Time Slider is created, but it does not connect with the data. When I disable time in the UI, the points appear, but when I enable time, everything disappears. 

Can anyone direct me to any documentation for this? I'm a bit stuck right now. Thanks. 

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