{
  "name": "make_circle",
  "type": "function",
  "groups": ["GeometryGroup"],
  "description": "Creates a circular polygon.",
  "arguments": [{
    "arg": "center",
    "description": "center point of the circle"
  }, {
    "arg": "radius",
    "description": "radius of the circle"
  }, {
    "arg": "segments",
    "optional": true,
    "default": "36",
    "description": "optional argument for polygon segmentation. By default this value is 36"
  }],
  "examples": [{
    "expression": "geom_to_wkt(make_circle(make_point(10,10), 5, 4))",
    "returns": "'Polygon ((10 15, 15 10, 10 5, 5 10, 10 15))'"
  }, {
    "expression": "geom_to_wkt(make_circle(make_point(10,10,5), 5, 4))",
    "returns": "'PolygonZ ((10 15 5, 15 10 5, 10 5 5, 5 10 5, 10 15 5))'"
  }, {
    "expression": "geom_to_wkt(make_circle(make_point(10,10,5,30), 5, 4))",
    "returns": "'PolygonZM ((10 15 5 30, 15 10 5 30, 10 5 5 30, 5 10 5 30, 10 15 5 30))'"
  }],
  "tags": ["circular", "polygon"]
}