This function filters features from the first layer based on their spatial relationship with features in the second layer using various spatial predicates.
Usage
turf_filter(
map,
layer_id = NULL,
filter_layer_id = NULL,
data = NULL,
filter_data = NULL,
predicate = c("intersects", "within", "contains", "crosses", "disjoint"),
source_id,
input_id = NULL
)Arguments
- map
A mapboxgl, maplibre, mapboxgl_proxy, or maplibre_proxy object.
- layer_id
The ID of the layer or source to filter (mutually exclusive with data).
- filter_layer_id
The ID of the layer or source to filter against (mutually exclusive with filter_data).
- data
An sf object containing features to filter (mutually exclusive with layer_id).
- filter_data
An sf object containing the filter geometry (mutually exclusive with filter_layer_id).
- predicate
The spatial relationship to test. One of: "intersects", "within", "contains", "crosses", "disjoint".
- source_id
The ID for the new source containing the filtered results. Required.
- input_id
Optional. Character string specifying the Shiny input ID suffix for storing results. If NULL (default), no input is registered. For proxy operations, the result will be available as
input[[paste0(map_id, "_turf_", input_id)]].