### ----------------------------------------------------
### -- PDF::ISO_32000
### -- Licenses: Artistic-2.0
### -- Authors: David Warring
### -- File: resources/ISO_32000/Table_80-Additional_Entries_Specific_to_a_Type_2_Shading_Dictionary.json
### ----------------------------------------------------
{
  "table": {
    "caption": "Table 80 – Additional Entries Specific to a Type 2 Shading Dictionary",
    "head": [
      "Key",
      "Type",
      "Value"
    ],
    "rows": [
      [
        "Coords",
        "array",
        "(Required) An array of four numbers [ x0 y0 x1 y1 ] specifying the starting and ending coordinates of the axis, expressed in the shading’s target coordinate space."
      ],
      [
        "Domain",
        "array",
        "(Optional) An array of two numbers [ t0 t1 ] specifying the limiting values of a parametric variable t. The variable is considered to vary linearly between these two values as the colour gradient varies between the starting and ending points of the axis. The variable t becomes the input argument to the colour function(s). Default value: [ 0.0 1.0 ]."
      ],
      [
        "Function",
        "function",
        "(Required) A 1-in, n-out function or an array of n 1-in, 1-out functions (where n is the number of colour components in the shading dictionary’s colour space). The function(s) is called with values of the parametric variable t in the domain defined by the Domain entry. Each function’s domain is a superset of that of the shading dictionary. If the value returned by the function for a given colour component is out of range, it is adjusted to the nearest valid value."
      ],
      [
        "Extend",
        "array",
        "(Optional) An array of two boolean values specifying whether to extend the shading beyond the starting and ending points of the axis, respectively. Default value: [ false false ]."
      ]
    ]
  }
}


