Pulls the object ids out of an input$<output_id>$selection event. A
selection can span several layers, so layer narrows it to one.
Usage
arc_selected(x, layer = NULL)
Arguments
- x
Defines which selection event to read.
- layer
default NULL. Defines which layer's ids to return, by name.
NULL returns every selected id, across layers.
Value
An integer vector of object ids.
Examples
event <- list(
count = 3,
layers = list(list(layer = "Counties", objectIds = c(1, 2, 5)))
)
arc_selected(event)
#> [1] 1 2 5
arc_selected(event, layer = "Counties")
#> [1] 1 2 5