i have an application built in web app builder that is getting the data via stream services via geoevent server . The data has GPS coordinate(lat, long) coming for at various time stamps for a device. I want to be able to add a new field to the datatable to calculate the speed as i recieve the data. I know there is a formula for speed using lat long but how can i implement it . How can i compare the latest data with the old one to find the difference in distance and time?
i can also move my app to expereince builder if required.
