{
  "name": "simplify",
  "type": "function",
  "groups": ["GeometryGroup"],
  "description": "Simplifies a geometry by removing nodes using a distance based threshold (ie, the Douglas Peucker algorithm). The algorithm preserves large deviations in geometries and reduces the number of vertices in nearly straight segments.",
  "arguments": [{
    "arg": "geometry",
    "description": "a geometry"
  }, {
    "arg": "tolerance",
    "description": "maximum deviation from straight segments for points to be removed"
  }],
  "examples": [{
    "expression": "geom_to_wkt(simplify(geometry:=geom_from_wkt('LineString(0 0, 5 0.1, 10 0)'),tolerance:=5))",
    "returns": "'LineString(0 0, 10 0)'"
  }],
  "tags": ["straight", "large", "deviations", "nodes", "algorithm", "reduces", "simplifies", "segments", "number", "threshold", "distance", "removing", "vertices", "based", "preserves"]
}