Convert a glmap Selection or Bounds Event into a WKT Polygon (gl_bbox_to_wkt)

Converts either a numeric vector c(xmin, ymin, xmax, ymax) or a Shiny input$map_selected / input$map_bounds list directly into an EPSG:4326 POLYGON ((...)) WKT string ready for Snowflake ST_WITHIN(GEOGRAPHY, TO_GEOGRAPHY(?)) or DuckDB Spatial ST_Intersects(geom, ST_GeomFromText(?)).

Usage

gl_bbox_to_wkt(x)

Arguments

x

A numeric vector c(xmin, ymin, xmax, ymax), or a list from input$map_selected / input$map_bounds.

Value

A single WKT POLYGON ((...)) character string.