{
  "name": "x",
  "type": "function",
  "groups": ["GeometryGroup"],
  "description": "Returns the x coordinate of a point geometry, or the x coordinate of the centroid for a non-point geometry.",
  "arguments": [{
    "arg": "geometry",
    "description": "a geometry"
  }],
  "examples": [{
    "expression": "x( geom_from_wkt( 'POINT(2 5)' ) )",
    "returns": "2"
  }, {
    "expression": "x( @geometry )",
    "returns": "x coordinate of the current feature's centroid"
  }],
  "tags": ["centroid", "point", "coordinate"]
}