Hi y'all,
I have a dataset that shows rail trackage in a city over time. The dates of the trackage are pretty random (1838, 1859, 1888, 1900, etc.). I wanted to use the Slider app to show the rail network expand and contract over time, but the app will only show the trackage's extent on the given year (like 1888) and is empty until the next one. Is there a way I can keep one date's data on the map until the next one appears? I know I can have it show progressively from the start, but that retains data from the old year which may show rail lines that do not exist any more.
Thank you.