Query a spatial index for features intersecting a bounding box (gl_query_index) — gl_query_index • glmap

Query a spatial index for features intersecting a bounding box (gl_query_index)

Usage

gl_query_index(index, bbox, max_features = 0L)

Arguments

index: A gl_spatial_index object created by gl_spatial_index().
bbox: Numeric vector c(xmin, ymin, xmax, ymax).
max_features: Optional cap on returned features (uses deterministic stride LOD sampling).

Value

Integer vector of 1-based feature indices.