Google Maps API：希望地理位置在下方的数据层自动点击

I am trying to build a map-based site that identifies a user's geolocation, draws a marker at his/her position, and then uses that marker/location to click on a data layer (in this case, a GeoJSON layer). Essentially, the user's location should trigger an infowindow automatically if he or she is located on an area delineated by the geojson file. Ideally, each time the user changes location it will be clicking the map to check this GeoJSON layer for info.I am trying to build a map-based site that iden