Watch for Symbol in View

Question

There are many Accessors and I am wondering what would be the correct way to handle watching for when a Symbol or some Path comes into the View. (I currently have a GEO JSON layer that renders a Path Symbol)

For example, if there are 5 Symbols within the View and I zoom in so there are only 3, can I watch an Accessor to know which 3 are in the View?

My immediate idea is to compare the location of the Path to the area of the View, but not sure if there is a better way.

developerarce · Accepted Answer

Found out that you can get the size of the view and utilize the webMercatorUtils to convert to Lat/Long. Then you can compare against data you may have to determine if that data should be shown.