Hi Everyone,
I am currently working on a project that consist of a feature layer that pulled data from a data stream. The data is actually coming from 4 sensor points, but the data records kept growing so there are thousands of records in the feature layer - resulting in thousands of points in my Map. Currently, I used a custom expression to visualize the data based on the sensor's value:
var moisture = $feature.moisture
var N = $feature.N
var pH = $feature.pH
var date = $feature.Date
When(
moisture >= 0.85, 'Warning',
moisture <= 0.2, 'Warning',
N >= 0.06, 'Warning',
N <= 0.03, 'Warning',
pH >= 7.5, 'Warning',
pH <= 6, 'Warning',
'Normal Condition'
)
Is there any way to filter the data so that the map only visualizes the latest condition of each sensor? I have tried to use filter capabilities, but it is limited to filter the data only within the last 1 minute. Meanwhile, the data comes in seconds. I need to sort by the latest data added and filter only the four latest records.
Thank you for your help.
