QGIS/resources/function_help/json/clamp

{
  "name": "clamp",
  "type": "function",
  "groups": ["Math"],
  "description": "Restricts an input value to a specified range.",
  "arguments": [{
    "arg": "minimum",
    "description": "the smallest value <i>input</i> is allowed to take."
  }, {
    "arg": "input",
    "description": "a value which will be restricted to the range specified by <i>minimum</i> and <i>maximum</i>"
  }, {
    "arg": "maximum",
    "description": "the largest value <i>input</i> is allowed to take"
  }],
  "examples": [{
    "expression": "clamp(1,5,10)",
    "returns": "5",
    "note": "<i>input</i> is between 1 and 10 so is returned unchanged"
  }, {
    "expression": "clamp(1,0,10)",
    "returns": "1",
    "note": "<i>input</i> is less than minimum value of 1, so function returns 1"
  }, {
    "expression": "clamp(1,11,10)",
    "returns": "10",
    "note": "<i>input</i> is greater than maximum value of 10, so function returns 10"
  }],
  "tags": ["specified", "restricts", "input", "range"]
}