QGIS/resources/function_help/json/raster_value

{
  "name": "raster_value",
  "type": "function",
  "groups": ["Rasters"],
  "description": "Returns the raster value found at the provided point.",
  "arguments": [{
    "arg": "layer",
    "description": "the name or id of a raster layer"
  }, {
    "arg": "band",
    "description": "the band number to sample the value from."
  }, {
    "arg": "point",
    "description": "point geometry (for multipart geometries having more than one part, a NULL value will be returned)"
  }],
  "examples": [{
    "expression": "raster_value('dem', 1, make_point(1,1))",
    "returns": "25"
  }],
  "tags": ["provided", "point", "raster", "found"]
}