CartoSym-JSON.schema.json

{
  "$schema": "https://json-schema.org/draft/2019-09/schema",
  "$ref": "#/$defs/style",
  "$defs": {
    "style": {
      "type": "object",
      "required": [ "stylingRules" ],
      "properties": {
         "$comment": { "type": "string" },
         "$include": {
            "oneOf": [
               { "type": "string" },
               { "type": "array", "items": { "type": "string" }, "minItems": 1 }
            ]
         },
         "metadata": {
            "type": "object",
            "properties":
            {
               "$comment": { "type": "string" },
               "title": { "type": "string" },
               "abstract": { "type": "string" },
               "authors": { "type": "array", "items": { "type": "string" } },
               "geoDataClasses": { "type": "array", "items": { "type": "string", "format": "uri" } }
            }
         },
         "stylingRules": {
            "type": "array",
            "items": { "$ref": "#/$defs/stylingRule" }
         },
         "$variables": { "type": "object" }
      }
    },
    "stylingRule": {
      "type": "object",
      "properties":
      {
         "$comment": { "type": "string" },
         "selector": { "$ref": "#/$defs/boolExpression" },
         "symbolizer": { "$ref": "#/$defs/symbolizer" },
         "nestedRules":
         {
            "type": "array",
            "items": { "$ref": "#/$defs/stylingRule" }
         }
      }
    },
    "symbolizer": {
      "type": "object",
      "properties":
      {
         "$comment": { "type": "string" },

         "visibility": { "$ref": "#/$defs/boolExpression" },
         "opacity": { "$ref": "#/$defs/zeroToOne" },
         "zOrder": { "$ref": "#/$defs/numericExpression" },

         "fill": { "$ref": "#/$defs/fill" },
         "stroke": { "$ref": "#/$defs/stroke" },
         "marker": { "$ref": "#/$defs/marker" },
         "label": { "$ref": "#/$defs/label" },

         "colorChannels": { "$ref": "#/$defs/color0to1" },
         "alphaChannel": { "$ref": "#/$defs/zeroToOne" },
         "singleChannel": { "$ref": "#/$defs/zeroToOne" },
         "colorMap": { "$ref": "#/$defs/colorMap" },
         "opacityMap": { "$ref": "#/$defs/opacityMap" },

         "hillShading": { "$ref": "#/$defs/hillShading" }
      }
    },
    "fill":
    {
       "oneOf": [
         { "$ref": "#/$defs/idOrFnExpression" },
         {
            "type": "object",
            "properties": {
               "alter": { "type": "boolean" },
               "color": { "$ref": "#/$defs/color" },
               "opacity": { "$ref": "#/$defs/zeroToOne" },
               "pattern": { "$ref": "#/$defs/graphic" },
               "gradient": { "$ref": "#/$defs/gradient" },
               "stippleStyle": { "$ref": "#/$defs/stippleStyle" },
               "hatchStyle": { "$ref": "#/$defs/hatchStyle" }
            }
         }
       ]
    },
    "gradient":
    {
       "oneOf": [
         { "$ref": "#/$defs/idOrFnExpression" },
         {
            "type": "object",
            "properties": {
               "alter": { "type": "boolean" },
               "type": { "type": "string", "enum": [ "linear", "radial" ] },
               "keys": {
                  "oneOf": [
                     {
                        "type": "array",
                        "items": { "$ref": "#/$defs/colorKey" }
                     },
                     {
                        "type": "object",
                        "required": [ "index", "value" ],
                        "properties": {
                           "index": { "type": "integer", "minimum": 0 },
                           "value": { "$ref": "#/$defs/colorKey" }
                        }
                     }
                  ]
               }
            }
         }
       ]
    },
    "colorKey":
    {
       "type": "object",
       "properties": {
          "alter": { "type": "boolean" },
          "percent": { "$ref": "#/$defs/percent" },
          "color": { "$ref": "#/$defs/color" },
          "opacity": { "$ref": "#/$defs/zeroToOne" }
       }
    },
    "stippleStyle":
    {
       "oneOf": [
         { "$ref": "#/$defs/idOrFnExpression" },
         { "type": "string", "enum": [ "light", "medium", "heavy" ] }
       ]
    },
    "hatchStyle":
    {
       "oneOf": [
         { "$ref": "#/$defs/idOrFnExpression" },
         { "type": "string", "enum": [ "forward", "backward", "xCross", "cross" ] }
       ]
    },
    "stroke":
    {
       "oneOf": [
         { "$ref": "#/$defs/idOrFnExpression" },
         {
            "allOf": [
               { "$ref": "#/$defs/strokeStyling" },
               {
                  "type": "object",
                  "properties":
                  {
                     "casing": { "$ref": "#/$defs/strokeStyling" },
                     "centerLine": { "$ref": "#/$defs/strokeStyling" },
                     "join": { "$ref": "#/$defs/strokeJoin" },
                     "cap": { "$ref": "#/$defs/strokeCap" },
                     "dashPattern": { "$ref": "#/$defs/dashPattern" },
                     "pattern": { "$ref": "#/$defs/graphic" }
                  }
               }
            ]
         }
       ]
    },
    "dashPattern":
    {
       "oneOf": [
         { "$ref": "#/$defs/idOrFnExpression" },
         {
            "type": "array",
            "items":
            {
               "type": "integer",
               "minimum": 0
            }
         },
         {
            "type": "object",
            "required": [ "index", "value" ],
            "properties": {
               "index": { "type": "integer", "minimum": 0 },
               "value": { "type": "integer", "minimum": 0 }
            }
         }
       ]
    },
    "strokeJoin":
    {
       "oneOf": [
         { "$ref": "#/$defs/idOrFnExpression" },
         { "type": "string", "enum": [ "miter", "round", "bevel" ] }
       ]
    },
    "strokeCap":
    {
       "oneOf": [
         { "$ref": "#/$defs/idOrFnExpression" },
         { "type": "string", "enum": [ "butt", "round", "square" ] }
       ]
    },
    "marker": { "$ref": "#/$defs/multiGraphic" },
    "label": {
       "allOf": [
          { "$ref": "#/$defs/multiGraphic" },
          {
             "type": "object",
             "properties":
             {
                "placement": { "$ref": "#/$defs/labelPlacement" }
             }
          }
       ]
    },
    "multiGraphic": {
       "oneOf": [
         { "$ref": "#/$defs/idOrFnExpression" },
         {
            "allOf": [
               { "$ref": "#/$defs/abstractGraphic" },
               {
                  "type": "object",
                  "required": [ "elements" ],
                  "properties":
                  {
                     "elements": { "$ref": "#/$defs/graphicArray" }
                  }
               }
            ]
         }
       ]
    },
    "graphicArray": {
       "oneOf": [
         { "$ref": "#/$defs/arrayExpression" },
         {
            "type": "array",
            "items": { "$ref": "#/$defs/graphic" }
         },
         {
            "type": "object",
            "required": [ "index", "value" ],
            "properties": {
               "index": { "type": "integer", "minimum": 0 },
               "value": { "$ref": "#/$defs/graphic" }
            }
         }
       ]
    },
    "abstractGraphic": {
       "type": "object",
       "properties": {
          "alter": { "type": "boolean" },
          "position": { "$ref": "#/$defs/unitPoint" },
          "opacity": { "$ref": "#/$defs/zeroToOne" },
          "transform": { "$ref": "#/$defs/transform2D" },
          "transform3D": { "$ref": "#/$defs/transform3D" }
       }
    },
    "transform2D": {
       "type": "object",
       "properties": {
          "alter": { "type": "boolean" },
          "orientation": { "$ref": "#/$defs/angle" },
          "scaling": { "$ref": "#/$defs/scale2D" },
          "translation": { "$ref": "#/$defs/unitPoint" }
       }
    },
    "transform3D": {
       "type": "object",
       "properties": {
          "alter": { "type": "boolean" },
          "orientation": { "$ref": "#/$defs/orientation3D" },
          "scaling": { "$ref": "#/$defs/scale3D" },
          "translation": { "$ref": "#/$defs/unitPoint" }
       }
    },
    "scale2D":
    {
       "oneOf": [
         { "$ref": "#/$defs/idOrFnExpression" },
         {
            "type": "array",
            "minItems": 2,
            "maxItems": 2,
            "items": { "$ref": "#/$defs/numericExpression" }
         },
         {
            "type": "object",
            "properties":
            {
               "x": { "$ref": "#/$defs/numericExpression" },
               "y": { "$ref": "#/$defs/numericExpression" },
               "alter": { "type": "boolean" }
            }
         }
       ]
    },
    "scale3D":
    {
       "oneOf": [
         { "$ref": "#/$defs/idOrFnExpression" },
         {
            "type": "array",
            "minItems": 3,
            "maxItems": 3,
            "items": { "$ref": "#/$defs/numericExpression" }
         },
         {
            "type": "object",
            "properties":
            {
               "x": { "$ref": "#/$defs/numericExpression" },
               "y": { "$ref": "#/$defs/numericExpression" },
               "z": { "$ref": "#/$defs/numericExpression" },
               "alter": { "type": "boolean" }
            }
         }
       ]
    },
    "orientation3D":
    {
       "oneOf": [
         { "$ref": "#/$defs/idOrFnExpression" },
         {
            "type": "array",
            "minItems": 4,
            "maxItems": 4,
            "items": { "$ref": "#/$defs/numericExpression" }
         },
         {
            "type": "object",
            "properties":
            {
               "w": { "$ref": "#/$defs/numericExpression" },
               "x": { "$ref": "#/$defs/numericExpression" },
               "y": { "$ref": "#/$defs/numericExpression" },
               "z": { "$ref": "#/$defs/numericExpression" },
               "alter": { "type": "boolean" }
            }
         },
         {
            "type": "object",
            "properties":
            {
               "yaw": { "$ref": "#/$defs/numericExpression" },
               "pitch": { "$ref": "#/$defs/numericExpression" },
               "roll": { "$ref": "#/$defs/numericExpression" },
               "alter": { "type": "boolean" }
            }
         }
       ]
    },
    "graphic": {
       "oneOf": [
         { "$ref": "#/$defs/idOrFnExpression" },
         { "$ref": "#/$defs/image" },
         { "$ref": "#/$defs/shape" },
         { "$ref": "#/$defs/text" },
         { "$ref": "#/$defs/model" },
         { "$ref": "#/$defs/multiGraphic" },
         { "$ref": "#/$defs/graphicInstance" }
       ]
    },
    "graphicInstance": {
      "allOf": [
         { "$ref": "#/$defs/abstractGraphic" },
         {
             "type": "object",
             "required": [ "type", "element" ],
             "properties":
             {
                "type": { "type": "string", "enum": [ "GraphicInstance" ] },
                "element": { "$ref": "#/$defs/graphic" }
             }
         }
      ]
    },
    "image": {
      "allOf": [
         { "$ref": "#/$defs/abstractGraphic" },
         {
             "type": "object",
             "required": [ "type", "image" ],
             "properties":
             {
                "type": { "type": "string", "enum": [ "Image" ] },
                "image": { "$ref": "#/$defs/resource" },
                "hotSpot": { "$ref": "#/$defs/unitPoint" },
                "tint": { "$ref": "#/$defs/color" },
                "blackTint": { "$ref": "#/$defs/color" },
                "alphaThreshold": { "$ref": "#/$defs/zeroToOne" }
             }
         }
      ]
    },
    "model": {
      "allOf": [
         { "$ref": "#/$defs/abstractGraphic" },
         {
             "type": "object",
             "required": [ "type", "model" ],
             "properties":
             {
                "type": { "type": "string", "enum": [ "Model" ] },
                "model": { "$ref": "#/$defs/resource" }
             }
         }
      ]
    },
    "text": {
      "allOf": [
         { "$ref": "#/$defs/abstractGraphic" },
         {
             "type": "object",
             "required": [ "type", "text" ],
             "properties":
             {
                "type": { "type": "string", "enum": [ "Text" ] },
                "text": { "$ref": "#/$defs/characterExpression" },
                "font": { "$ref": "#/$defs/font" },
                "alignment": { "$ref": "#/$defs/textAlignment" }
             }
         }
       ]
    },
    "textAlignment": {
       "oneOf": [
          { "$ref": "#/$defs/idOrFnExpression" },
          {
             "type": "array",
             "minItems": 2,
             "maxItems": 2,
             "prefixItems": [
                { "$ref": "#/$defs/hAlignment" },
                { "$ref": "#/$defs/vAlignment" }
              ]
          },
          {
             "type": "object",
             "properties":
             {
               "hAlignment": { "$ref": "#/$defs/hAlignment" },
               "vAlignment": { "$ref": "#/$defs/vAlignment" },
               "alter": { "type": "boolean" }
             }
          }
       ]
    },
    "hAlignment": {
       "oneOf": [
          { "$ref": "#/$defs/idOrFnExpression" },
          {
             "type": "string",
             "enum": [ "left", "center", "right" ]
          }
       ]
    },
    "vAlignment": {
       "oneOf": [
          { "$ref": "#/$defs/idOrFnExpression" },
          {
            "type": "string",
            "enum": [ "top", "middle", "bottom" ]
          }
       ]
    },
    "font": {
       "oneOf": [
          { "$ref": "#/$defs/idOrFnExpression" },
          {
             "type": "object",
             "properties": {
                "alter": { "type": "boolean" },
                "face": { "$ref": "#/$defs/characterExpression" },
                "size": { "$ref": "#/$defs/numericExpression" },
                "bold": { "$ref": "#/$defs/boolExpression" },
                "italic": { "$ref": "#/$defs/boolExpression" },
                "underline": { "$ref": "#/$defs/boolExpression" },
                "color": { "$ref": "#/$defs/color" },
                "opacity": { "$ref": "#/$defs/zeroToOne" },
                "outline": { "$ref": "#/$defs/fontOutline" }
             }
          }
       ]
    },
    "fontOutline": {
       "oneOf": [
          { "$ref": "#/$defs/idOrFnExpression" },
          {
             "type": "object",
             "properties": {
                "alter": { "type": "boolean" },
                "size": { "$ref": "#/$defs/numericExpression" },
                "opacity": { "$ref": "#/$defs/zeroToOne" },
                "color": { "$ref": "#/$defs/color" }
             }
          }
       ]
    },
    "shapeOutline": {
       "oneOf": [
          { "$ref": "#/$defs/idOrFnExpression" },
          {
             "type": "object",
             "properties": {
                "alter": { "type": "boolean" },
                "thickness": { "$ref": "#/$defs/unitValue" },
                "opacity": { "$ref": "#/$defs/zeroToOne" },
                "color": { "$ref": "#/$defs/color" }
             }
          }
       ]
    },
    "abstractShape": {
      "allOf": [
         { "$ref": "#/$defs/abstractGraphic" },
         {
            "type": "object",
            "required": [ "type" ],
            "properties": {
               "type": { "type": "string" },
               "stroke": { "$ref": "#/$defs/stroke" },
               "outline": { "$ref": "#/$defs/shapeOutline" }
            }
         }
      ]
    },
    "shape": {
      "oneOf": [
         { "$ref": "#/$defs/dot" },
         { "$ref": "#/$defs/arc" },
         { "$ref": "#/$defs/path" },
         { "$ref": "#/$defs/rectangle" },
         { "$ref": "#/$defs/circle" },
         { "$ref": "#/$defs/ellipse" },
         { "$ref": "#/$defs/sectorArc" },
         { "$ref": "#/$defs/chordArc" },
         { "$ref": "#/$defs/closedPath" }
      ]
    },
    "closedShape": {
      "allOf": [
         { "$ref": "#/$defs/abstractShape" },
         {
            "type": "object",
            "properties": {
               "fill": { "$ref": "#/$defs/fill" }
            }
         }
      ]
    },
    "dot": {
      "allOf": [
         { "$ref": "#/$defs/abstractShape" },
         {
          "type": "object",
          "required": [ "type" ],
          "properties":
          {
             "type": { "type": "string", "enum": [ "Dot" ] }
          }
         }
       ]
    },
    "abstractArc": {
      "allOf": [
         { "$ref": "#/$defs/abstractShape" },
         {
          "type": "object",
          "required": [ "startAngle", "deltaAngle", "radius" ],
          "properties":
          {
             "center": { "$ref": "#/$defs/unitPoint" },
             "radius": { "$ref": "#/$defs/unitValue" },
             "startAngle": { "$ref": "#/$defs/angle" },
             "deltaAngle": { "$ref": "#/$defs/angle" }
          }
         }
       ]
    },
    "arc": {
       "allOf" : [
         { "$ref": "#/$defs/abstractArc" },
         {
             "type": "object",
             "required": [ "type" ],
             "properties":
             {
                "type": { "type": "string", "enum": [ "Arc" ] }
             }
         }
       ]
    },
    "sectorArc": {
       "allOf" : [
         { "$ref": "#/$defs/closedShape" },
         { "$ref": "#/$defs/abstractArc" },
         {
             "type": "object",
             "required": [ "type" ],
             "properties":
             {
                "type": { "type": "string", "enum": [ "SectorArc" ] }
             }
         }
       ]
    },
    "chordArc": {
       "allOf" : [
         { "$ref": "#/$defs/closedShape" },
         { "$ref": "#/$defs/abstractArc" },
         {
             "type": "object",
             "required": [ "type" ],
             "properties":
             {
                "type": { "type": "string", "enum": [ "ChordArc" ] }
             }
         }
       ]
    },
    "circle": {
       "allOf" : [
         { "$ref": "#/$defs/closedShape" },
         {
          "type": "object",
          "required": [ "type" ],
          "properties":
          {
             "type": { "type": "string", "enum": [ "Circle" ] },
             "center": { "$ref": "#/$defs/unitPoint" },
             "radius": { "$ref": "#/$defs/unitValue" }
          }
         }
       ]
    },
    "ellipse": {
       "allOf" : [
         { "$ref": "#/$defs/closedShape" },
         {
          "type": "object",
          "required": [ "type", "radii" ],
          "properties":
          {
             "type": { "type": "string", "enum": [ "Ellipse" ] },
             "center": { "$ref": "#/$defs/unitPoint" },
             "radii": {
                "oneOf": [
                   {
                      "type": "array",
                      "minItems": 2,
                      "maxItems": 2,
                      "items": { "$ref": "#/$defs/unitValue" }
                   },
                   {
                      "type": "object",
                      "properties":
                      {
                        "x": { "$ref": "#/$defs/unitValue" },
                        "y": { "$ref": "#/$defs/unitValue" },
                        "alter": { "type": "boolean" }
                      }
                   }
                ]
             }
          }
         }
       ]
    },
    "rectangle": {
       "allOf" : [
         { "$ref": "#/$defs/closedShape" },
         {
          "type": "object",
          "required": [ "type", "topLeft", "bottomRight" ],
          "properties":
          {
             "type": { "type": "string", "enum": [ "Rectangle" ] },
             "topLeft": { "$ref": "#/$defs/unitPoint" },
             "bottomRight": { "$ref": "#/$defs/unitPoint" }
          }
         }
       ]
    },
    "roundedRectangle": {
       "allOf" : [
         { "$ref": "#/$defs/closedShape" },
         {
          "type": "object",
          "required": [ "type", "topLeft", "bottomRight" ],
          "properties":
          {
             "type": { "type": "string", "enum": [ "RoundedRectangle" ] },
             "topLeft": { "$ref": "#/$defs/unitPoint" },
             "bottomRight": { "$ref": "#/$defs/unitPoint" },
             "radii": {
                "oneOf": [
                   {
                      "type": "array",
                      "minItems": 2,
                      "maxItems": 2,
                      "items": { "$ref": "#/$defs/unitValue" }
                   },
                   {
                      "type": "object",
                      "properties":
                      {
                        "x": { "$ref": "#/$defs/unitValue" },
                        "y": { "$ref": "#/$defs/unitValue" },
                        "alter": { "type": "boolean" }
                      }
                   }
                ]
             }
          }
         }
       ]
    },
    "abstractPath": {
       "allOf": [
         { "$ref": "#/$defs/abstractShape" },
         {
          "type": "object",
          "required": [ "nodes" ],
          "properties":
          {
             "nodes": { "$ref": "#/$defs/pathNodes" }
          }
         }
       ]
    },
    "path": {
       "allOf": [
         { "$ref": "#/$defs/abstractPath" },
         {
            "type": "object",
            "required": [ "type" ],
            "properties":
            {
               "type": { "type": "string", "enum": [ "Path" ] }
            }
         }
       ]
    },
    "closedPath": {
       "allOf": [
         { "$ref": "#/$defs/abstractPath" },
         { "$ref": "#/$defs/closedShape" },
         {
          "type": "object",
          "properties":
          {
             "type": { "type": "string", "enum": [ "ClosedPath" ] },
             "innerNodes":
             {
                "anyOf": [
                  { "$ref": "#/$defs/arrayExpression" },
                  {
                     "type": "array",
                     "items": { "$ref": "#/$defs/pathNodes" }
                  },
                  {
                     "type": "object",
                     "required": [ "index", "value" ],
                     "properties": {
                        "index": { "type": "integer", "minimum": 0 },
                        "value": { "$ref": "#/$defs/pathNodes" }
                     }
                  }
                ]
             }
          }
         }
       ]
    },
    "pathNodes": {
      "oneOf": [
         { "$ref": "#/$defs/arrayExpression" },
         {
            "type": "array",
            "minItems": 1,
            "items": { "$ref": "#/$defs/unitPoint" }
         },
         {
            "type": "object",
            "required": [ "index", "value" ],
            "properties": {
               "index": { "type": "integer", "minimum": 0 },
               "value": { "$ref": "#/$defs/unitPoint" }
            }
         }
      ]
    },
    "resource": {
       "type": "object",
       "properties":
       {
          "alter": { "type": "boolean" },
          "uri": { "$ref": "#/$defs/characterExpression" },
          "path": { "$ref": "#/$defs/characterExpression" },
          "id": { "$ref": "#/$defs/characterExpression" },
          "type": { "$ref": "#/$defs/characterExpression" },
          "ext": { "$ref": "#/$defs/characterExpression" },
          "sprite": { "$ref": "#/$defs/characterExpression" }
       }
    },
    "labelPlacement": {
       "oneOf": [
         { "$ref": "#/$defs/idOrFnExpression" },
         {
            "type": "object",
            "properties":
            {
               "alter": { "type": "boolean" },
               "priority": { "$ref": "#/$defs/numericExpression" },
               "minSpacing": { "$ref": "#/$defs/numericExpression" },
               "maxSpacing": { "$ref": "#/$defs/numericExpression" }
            }
         }
       ]
    },
    "strokeStyling":
    {
       "oneOf": [
         { "$ref": "#/$defs/idOrFnExpression" },
         {
            "type": "object",
            "properties":
            {
               "alter": { "type": "boolean" },
               "color": { "$ref": "#/$defs/color" },
               "opacity": { "$ref": "#/$defs/zeroToOne" },
               "width": { "$ref": "#/$defs/unitValue" }
            }
         }
       ]
    },
    "angle":
    {
       "oneOf": [
          { "$ref": "#/$defs/numericExpression" },
          { "type": "object", "properties": { "deg": { "$ref": "#/$defs/numericExpression" } }, "required": [ "deg" ] },
          { "type": "object", "properties": { "rad": { "$ref": "#/$defs/numericExpression" } }, "required": [ "rad" ] }
       ]
    },
    "unitValue":
    {
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          { "$ref": "#/$defs/numericExpression" },
          { "type": "object", "properties": { "px": { "$ref": "#/$defs/numericExpression" } }, "required": [ "px" ] },
          { "type": "object", "properties": { "mm": { "$ref": "#/$defs/numericExpression" } }, "required": [ "mm" ] },
          { "type": "object", "properties": { "cm": { "$ref": "#/$defs/numericExpression" } }, "required": [ "cm" ] },
          { "type": "object", "properties": { "in": { "$ref": "#/$defs/numericExpression" } }, "required": [ "in" ] },
          { "type": "object", "properties": { "pt": { "$ref": "#/$defs/numericExpression" } }, "required": [ "pt" ] },
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          { "type": "object", "properties": { "m" : { "$ref": "#/$defs/numericExpression" } }, "required": [ "m"  ] },
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       ]
    },
    "unitPoint":
    {
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         { "$ref": "#/$defs/idOrFnExpression" },
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            "maxItems": 3,
            "items": { "$ref": "#/$defs/unitValue" }
         },
         {
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            "properties":
            {
               "x": { "$ref": "#/$defs/unitValue" },
               "y": { "$ref": "#/$defs/unitValue" },
               "z": { "$ref": "#/$defs/unitValue" },
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            }
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       ]
    },
    "percent":
    {
       "anyOf": [
          { "$ref": "#/$defs/numericExpression" },
          { "type": "number", "minimum": 0.0, "maximum": 100.0 }
       ]
    },
    "zeroToOne":
    {
       "anyOf": [
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          { "type": "number", "minimum": 0, "maximum": 1 }
       ]
    },
    "colorComponent0to255":
    {
       "anyOf": [
         { "$ref": "#/$defs/numericExpression" },
         { "type": "integer", "mininum": 0, "maximum": 255 }
       ]
    },
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    {
      "type": "string",
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         "wheat",
         "oldLace",
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         "khaki",
         "lemonChiffon",
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         "darkTurquoise",
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         "cornflowerBlue",
         "royalBlue",
         "midnightBlue",
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         "darkSlateBlue",
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         "thistle",
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         "deepPink",
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         "lightPink"
      ]
    },
    "color":
    {
       "oneOf": [
         { "$ref": "#/$defs/idOrFnExpression" },
         {
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            "properties":
            {
               "r": { "$ref": "#/$defs/colorComponent0to255" },
               "g": { "$ref": "#/$defs/colorComponent0to255" },
               "b": { "$ref": "#/$defs/colorComponent0to255" },
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            }
         },
         {
            "type": "array",
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            "minItems": 3,
            "maxItems": 3
         },
         { "$ref": "#/$defs/webColorName" }
       ]
    },
    "color0to1":
    {
       "oneOf": [
         { "$ref": "#/$defs/idOrFnExpression" },
         {
            "type": "object",
            "properties":
            {
               "r": { "$ref": "#/$defs/zeroToOne" },
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               "b": { "$ref": "#/$defs/zeroToOne" },
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            }
         },
         {
            "type": "array",
            "items": { "$ref": "#/$defs/zeroToOne" },
            "minItems": 3,
            "maxItems": 3
         },
         { "$ref": "#/$defs/webColorName" }
       ]
    },
    "colorMap":
    {
       "oneOf": [
         { "$ref": "#/$defs/idOrFnExpression" },
         {
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            {
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               "maxItems": 3,
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                  { "$ref": "#/$defs/color" },
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               ]
            },
            "minItems": 1
         }
       ]
    },
    "opacityMap":
    {
       "oneOf": [
         { "$ref": "#/$defs/idOrFnExpression" },
         {
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               "type": "array",
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               "maxItems": 3,
               "prefixItems": [
                  { "$ref": "#/$defs/numericExpression" },
                  { "$ref": "#/$defs/zeroToOne" },
                  { "type": "string" }
               ]
            },
            "minItems": 1
         }
       ]
    },
    "hillShading": {
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         { "$ref": "#/$defs/idOrFnExpression" },
         {
             "type": "object",
             "properties": {
                "factor": { "$ref": "#/$defs/numericExpression" },
                "sun": { "$ref": "#/$defs/azimuthElevation" },
                "colorMap": { "$ref": "#/$defs/hsColorMap" },
                "opacityMap": { "$ref": "#/$defs/hsOpacityMap" },
                "alter": { "type": "boolean" }
             }
         }
       ]
    },
    "azimuthElevation": {
       "oneOf": [
         { "$ref": "#/$defs/idOrFnExpression" },
         {
             "type": "object",
             "properties": {
                "azimuth": { "$ref": "#/$defs/angle" },
                "elevation": { "$ref": "#/$defs/angle" },
                "alter": { "type": "boolean" }
             }
         }
       ]
    },
    "hsColorMap":
    {
       "oneOf": [
         { "$ref": "#/$defs/idOrFnExpression" },
         {
            "type": "array",
            "items":
            {
               "type": "array",
               "minItems": 2,
               "maxItems": 3,
               "prefixItems": [
                  { "$ref": "#/$defs/zeroToOne" },
                  { "$ref": "#/$defs/color" },
                  { "type": "string" }
               ]
            },
            "minItems": 1
         }
       ]
    },
    "hsOpacityMap":
    {
       "oneOf": [
         { "$ref": "#/$defs/idOrFnExpression" },
         {
            "type": "array",
            "items":
            {
               "type": "array",
               "minItems": 2,
               "maxItems": 3,
               "prefixItems": [
                  { "$ref": "#/$defs/zeroToOne" },
                  { "$ref": "#/$defs/zeroToOne" },
                  { "type": "string" }
               ]
            },
            "minItems": 1
         }
       ]
    },
    "idOrFnExpression": {
       "anyOf": [
          { "$ref": "#/$defs/systemIdentifier" },
          { "$ref": "#/$defs/propertyRef" },
          { "$ref": "#/$defs/functionRef" },
          { "$ref": "#/$defs/conditionalExpression" }
       ]
    },
    "anyExpression": {
       "anyOf": [
          { "$ref": "#/$defs/systemIdentifier" },
          { "$ref": "#/$defs/scalarExpression" },
          { "$ref": "#/$defs/geomExpression" },
          { "$ref": "#/$defs/temporalExpression" },
          { "$ref": "#/$defs/array" },
          { "type": null }
       ]
    },
    "systemIdentifier": {
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       "required": [ "sysId" ],
       "properties":
       {
          "sysId": {
             "type": "string",
             "enum": [
               "dataLayer",
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               "dataLayer.type",
               "dataLayer.featuresGeometryDimensions",
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               "vis.timeInterval.start",
               "vis.timeInterval.start.date",
               "vis.timeInterval.end",
               "vis.timeInterval.date"
             ]
          }
       }
    },
    "boolExpression": {
        "$dynamicAnchor": "boolExpression",
        "oneOf": [
          { "$ref": "#/$defs/andOrExpression" },
          { "$ref": "#/$defs/notExpression" },
          { "$ref": "#/$defs/comparisonPredicate" },
          { "$ref": "#/$defs/spatialPredicate" },
          { "$ref": "#/$defs/temporalPredicate" },
          { "$ref": "#/$defs/arrayPredicate" },
          { "$ref": "#/$defs/functionRef" },
          { "$ref": "#/$defs/conditionalExpression" },
          { "type": "boolean" }
        ]
    },
    "andOrExpression": {
      "type": "object",
      "required": [ "op", "args" ],
      "properties": {
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          "type": "string",
          "enum": [ "and", "or" ]
        },
        "args": {
          "type": "array",
          "minItems": 2,
          "items": {
            "$dynamicRef": "#boolExpression"
          }
        }
      }
    },

    "notExpression": {
      "type": "object",
      "required": [ "op", "args" ],
      "properties": {
        "op": {
          "type": "string",
          "enum": [ "not" ]
        },
        "args": {
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          "minItems": 1,
          "maxItems": 1,
          "items": {
            "$dynamicRef": "#boolExpression"
          }
        }
      }
    },

    "comparisonPredicate": {
      "oneOf": [
        { "$ref": "#/$defs/binaryComparisonPredicate" },
        { "$ref": "#/$defs/isLikePredicate" },
        { "$ref": "#/$defs/textOpPredicate" },
        { "$ref": "#/$defs/isBetweenPredicate" },
        { "$ref": "#/$defs/isInListPredicate" },
        { "$ref": "#/$defs/isNullPredicate" }
      ]
    },

    "binaryComparisonPredicate": {
      "type": "object",
      "required": [ "op", "args" ],
      "properties": {
        "op": {
          "type": "string",
          "enum": [ "=", "<>", "<", ">", "<=", ">=" ]
        },
        "args": {
          "$ref": "#/$defs/scalarOperands"
        }
      }
    },
    "scalarOperands": {
      "type": "array",
      "minItems": 2,
      "maxItems": 2,
      "prefixItems": [
        { "$ref": "#/$defs/scalarExpression" },
        { "$ref": "#/$defs/scalarExpression" }
      ]
    },

    "scalarExpression": {
      "oneOf": [
        { "$ref": "#/$defs/characterExpression" },
        { "$ref": "#/$defs/numericExpression" },
        { "$dynamicRef": "#boolExpression" },
        { "$ref": "#/$defs/temporalInstantExpression" }
      ]
    },

    "temporalInstantExpression": {
      "oneOf": [
        { "$ref": "#/$defs/instantInstance" },
        { "$ref": "#/$defs/propertyRef" },
        { "$ref": "#/$defs/systemIdentifier" },
        { "$ref": "#/$defs/functionRef" },
        { "$ref": "#/$defs/conditionalExpression" }
      ]
    },

    "isLikePredicate": {
      "type": "object",
      "required": [ "op", "args" ],
      "properties": {
        "op": {
          "type": "string",
          "enum": [ "like" ]
        },
        "args": {
          "$ref": "#/$defs/isLikeOperands"
        }
      }
    },
    "isLikeOperands": {
          "type": "array",
          "prefixItems": [
            { "$ref": "#/$defs/characterExpression" },
            { "$ref": "#/$defs/patternExpression" }
          ],
          "additionalItems": false
    },
    "textOpPredicate": {
      "type": "object",
      "required": [ "op", "args" ],
      "properties": {
        "op": {
          "type": "string",
          "enum": [ "contains", "startsWith", "endsWith" ]
        },
        "args": {
          "type": "array",
          "prefixItems": [
            { "$ref": "#/$defs/characterExpression" },
            { "$ref": "#/$defs/characterExpression" }
          ],
          "additionalItems": false
        }
      }
    },
    "patternExpression": {
      "oneOf": [
        {
          "type": "object",
          "required": [ "casei" ],
          "properties": {
            "casei": {
              "$ref": "#/$defs/patternExpression"
            }
          }
        },
        {
          "type": "object",
          "required": [ "accenti" ],
          "properties": {
            "accenti": {
              "$ref": "#/$defs/patternExpression"
            }
          }
        },
        { "type": "string" }
      ]
    },
    "isBetweenPredicate": {
      "type": "object",
      "required": [ "op", "args" ],
      "properties": {
        "op": { "type": "string", "enum": [ "between" ] },
        "args": { "$ref": "#/$defs/isBetweenOperands" }
      }
    },
    "isBetweenOperands": {
      "type": "array",
      "minItems": 3,
      "maxItems": 3,
      "items": {
        "$ref": "#/$defs/numericExpression"
      },
      "additionalItems": false
    },
    "numericExpression": {
      "oneOf": [
        { "$ref": "#/$defs/arithmeticExpression" },
        { "$ref": "#/$defs/bitwiseLogical" },
        { "$ref": "#/$defs/bitwiseShift" },
        { "$ref": "#/$defs/bitwiseNot" },
        { "type": "number" },
        { "$ref": "#/$defs/propertyRef" },
        { "$ref": "#/$defs/systemIdentifier" },
        { "$ref": "#/$defs/functionRef" },
        { "$ref": "#/$defs/conditionalExpression" }
      ]
    },

    "isInListPredicate": {
      "type": "object",
      "required": [ "op", "args" ],
      "properties": {
        "op": {
          "type": "string",
          "enum": [ "in" ]
        },
        "args": {
          "$ref": "#/$defs/inListOperands"
        }
      }
    },
    "inListOperands": {
      "type": "array",
      "prefixItems": [
        {
          "$ref": "#/$defs/scalarExpression"
        },
        {
          "type": "array",
          "items": {
            "$ref": "#/$defs/scalarExpression"
          }
        }
      ],
      "additionalItems": false
    },

    "isNullPredicate": {
      "type": "object",
      "required": [ "op", "args" ],
      "properties": {
        "op": {
          "type": "string",
          "enum": [ "isNull" ]
        },
        "args": {
          "$ref": "#/$defs/isNullOperand"
        }
      }
    },
    "isNullOperand": {
      "oneOf": [
        { "$ref": "#/$defs/characterExpression" },
        { "$ref": "#/$defs/numericExpression" },
        { "$dynamicRef": "#boolExpression" },
        { "$ref": "#/$defs/geomExpression" },
        { "$ref": "#/$defs/temporalExpression" }
      ]
    },

    "spatialPredicate": {
      "type": "object",
      "required": [ "op", "args" ],
      "properties": {
        "op": {
          "type": "string",
          "enum": [
            "s_contains",
            "s_crosses",
            "s_disjoint",
            "s_equals",
            "s_intersects",
            "s_overlaps",
            "s_touches",
            "s_within",
            "s_covers",
            "s_coveredBy"
          ]
        },
        "args": { "$ref": "#/$defs/spatialOperands" }
      }
    },
    "spatialOperands": {
      "type": "array",
      "prefixItems": [
        { "$ref": "#/$defs/geomExpression" },
        { "$ref": "#/$defs/geomExpression" }
      ],
      "additionalItems": false
    },
    "geomExpression": {
      "oneOf": [
        { "$ref": "#/$defs/spatialInstance" },
        { "$ref": "#/$defs/propertyRef" },
        { "$ref": "#/$defs/systemIdentifier" },
        { "$ref": "#/$defs/functionRef" },
        { "$ref": "#/$defs/conditionalExpression" }
      ]
    },

    "temporalPredicate": {
      "type": "object",
      "required": [ "op", "args" ],
      "properties": {
        "op": {
          "type": "string",
          "enum": [
            "t_after",
            "t_before",
            "t_contains",
            "t_disjoint",
            "t_during",
            "t_equals",
            "t_finishedBy",
            "t_finishes",
            "t_intersects",
            "t_meets",
            "t_metBy",
            "t_overlappedBy",
            "t_overlaps",
            "t_startedBy",
            "t_starts"
          ]
        },
        "args": { "$ref": "#/$defs/temporalOperands" }
      }
    },
    "temporalOperands": {
      "type": "array",
      "prefixItems": [
        { "$ref": "#/$defs/temporalExpression" },
        { "$ref": "#/$defs/temporalExpression" }
      ],
      "additionalItems": false
    },
    "temporalExpression": {
      "oneOf": [
        { "$ref": "#/$defs/temporalInstance" },
        { "$ref": "#/$defs/propertyRef" },
        { "$ref": "#/$defs/systemIdentifier" },
        { "$ref": "#/$defs/functionRef" },
        { "$ref": "#/$defs/conditionalExpression" }
      ]
    },

    "arrayPredicate": {
      "type": "object",
      "required": [ "op", "args" ],
      "properties": {
        "op": {
          "type": "string",
          "enum": [
            "a_containedBy",
            "a_contains",
            "a_equals",
            "a_overlaps"
          ]
        },
        "args": { "$ref": "#/$defs/arrayArguments" }
      }
    },
    "arrayArguments": {
      "type": "array",
      "minItems": 2,
      "maxItems": 2,
      "items": {
        "oneOf": [
          { "$ref": "#/$defs/array" },
          { "$ref": "#/$defs/propertyRef" },
          { "$ref": "#/$defs/systemIdentifier" },
          { "$ref": "#/$defs/functionRef" },
          { "$ref": "#/$defs/conditionalExpression" }
        ]
      }
    },
    "arrayExpression": {
      "type": "array",
      "items": {
        "oneOf": [
          { "$ref": "#/$defs/array" },
          { "$ref": "#/$defs/propertyRef" },
          { "$ref": "#/$defs/systemIdentifier" },
          { "$ref": "#/$defs/functionRef" },
          { "$ref": "#/$defs/conditionalExpression" }
        ]
      }
    },
    "array": {
      "type": "array",
      "items": {
        "oneOf": [
          { "$ref": "#/$defs/characterExpression" },
          { "$ref": "#/$defs/numericExpression" },
          { "$dynamicRef": "#boolExpression" },
          { "$ref": "#/$defs/geomExpression" },
          { "$ref": "#/$defs/temporalExpression" },
          { "$ref": "#/$defs/array" }
        ]
      }
    },

    "arithmeticExpression": {
      "type": "object",
      "required": [ "op", "args" ],
      "properties": {
        "op": {
          "type": "string",
          "enum": [ "+", "-", "*", "/", "^" ]
        },
        "args": {
          "$ref": "#/$defs/arithmeticOperands"
        }
      }
    },
    "arithmeticOperands": {
      "type": "array",
      "minItems": 2,
      "maxItems": 2,
      "items": {
        "oneOf": [
          { "$ref": "#/$defs/arithmeticExpression" },
          { "$ref": "#/$defs/bitwiseLogical" },
          { "$ref": "#/$defs/bitwiseShift" },
          { "$ref": "#/$defs/bitwiseNot" },
          { "$ref": "#/$defs/propertyRef" },
          { "$ref": "#/$defs/systemIdentifier" },
          { "$ref": "#/$defs/functionRef" },
          { "$ref": "#/$defs/conditionalExpression" },
          { "type": "number" }
        ]
      }
    },

    "hexNumber": {
       "type": "string",
       "pattern": "^([a-fA-F0-9])+"
    },
    "bitwiseLogical": {
      "type": "object",
      "required": [ "op", "args" ],
      "properties": {
        "op": {
          "type": "string",
          "enum": [ "bitAnd", "bitOr", "bitXor" ]
        },
        "args": {
            "type": "array",
            "minItems": 2,
            "maxItems": 2,
            "items": {
              "$ref": "#/$defs/bitwiseOperand"
            }
        }
      }
    },
    "bitwiseNot": {
      "type": "object",
      "required": [ "op", "args" ],
      "properties": {
        "op": {
          "type": "string",
          "enum": [ "bitNot" ]
        },
        "args": {
            "type": "array",
            "minItems": 1,
            "maxItems": 1,
            "items": {
              "$ref": "#/$defs/bitwiseOperand"
            }
        }
      }
    },
    "bitwiseShift": {
      "type": "object",
      "required": [ "op", "args" ],
      "properties": {
        "op": {
          "type": "string",
          "enum": [ "<<", ">>" ]
        },
        "args": {
            "type": "array",
            "minItems": 2,
            "maxItems": 2,
            "items": {
              "$ref": "#/$defs/bitwiseOperand"
            }
        }
      }
    },
    "bitwiseOperand": {
        "oneOf": [
          { "$ref": "#/$defs/arithmeticExpression" },
          { "$ref": "#/$defs/bitwiseLogical" },
          { "$ref": "#/$defs/bitwiseShift" },
          { "$ref": "#/$defs/bitwiseNot" },
          { "$ref": "#/$defs/propertyRef" },
          { "$ref": "#/$defs/systemIdentifier" },
          { "$ref": "#/$defs/functionRef" },
          { "$ref": "#/$defs/conditionalExpression" },
          { "type": "integer" },
          { "$ref": "#/$defs/hexNumber" }
        ]
    },

    "propertyRef": {
      "type": "object",
      "required": [ "property" ],
      "properties": {
        "property": { "type": "string" }
      }
    },

    "casei": {
      "type": "object",
      "required": [ "casei" ],
      "properties": {
        "casei": {
          "$ref": "#/$defs/characterExpression"
        }
      }
    },

    "accenti": {
      "type": "object",
      "required": [ "accenti" ],
      "properties": {
        "accenti": {
          "$ref": "#/$defs/characterExpression"
        }
      }
    },

    "lowerUpperCase": {
      "type": "object",
      "required": [ "function" ],
      "properties": {
        "function":
        {
           "type": "object",
           "required": [ "name", "args" ],
           "properties":
           {
              "name": {
                "type": "string",
                "enum": [ "lowerCase", "upperCase" ]
              },
              "args": {
                "type": "array",
                "items": { "$ref": "#/$defs/characterExpression" },
                "minItems": 1,
                "maxItems": 1
              }
           }
        }
      }
    },

    "concatenate": {
      "type": "object",
      "required": [ "function" ],
      "properties": {
        "function":
        {
           "type": "object",
           "required": [ "name", "args" ],
           "properties":
           {
              "name": {
                "type": "string",
                "enum": [ "concatenate" ]
              },
              "args": {
                "type": "array",
                "items": { "$ref": "#/$defs/characterExpression" },
                "minItems": 2
              }
           }
        }
      }
    },

    "substitute": {
      "type": "object",
      "required": [ "function" ],
      "properties": {
        "function":
        {
           "type": "object",
           "required": [ "name", "args" ],
           "properties":
           {
              "name": {
                "type": "string",
                "enum": [ "substitute" ]
              },
              "args": {
                "type": "array",
                "items": { "$ref": "#/$defs/characterExpression" },
                "minItems": 3,
                "maxItems": 3
              }
           }
        }
      }
    },

    "format": {
      "type": "object",
      "required": [ "function" ],
      "properties": {
        "function":
        {
           "type": "object",
           "required": [ "name", "args" ],
           "properties":
           {
              "name": {
                "type": "string",
                "enum": [ "format" ]
              },
              "args": {
                "type": "array",
                "items": {
                  "oneOf": [
                    { "$ref": "#/$defs/characterExpression" },
                    { "$ref": "#/$defs/numericExpression" },
                    { "$dynamicRef": "#boolExpression" },
                    { "$ref": "#/$defs/geomExpression" },
                    { "$ref": "#/$defs/temporalExpression" },
                    { "$ref": "#/$defs/array" }
                  ]
                },
                "prefixItems": [
                  { "$ref": "#/$defs/characterExpression" }
                ],
                "minItems": 1
              }
           }
        }
      }
    },

    "characterExpression": {
      "oneOf": [
        { "$ref": "#/$defs/casei" },
        { "$ref": "#/$defs/accenti" },
        { "$ref": "#/$defs/lowerUpperCase" },
        { "$ref": "#/$defs/concatenate" },
        { "$ref": "#/$defs/substitute" },
        { "$ref": "#/$defs/format" },
        { "type": "string" },
        { "$ref": "#/$defs/propertyRef" },
        { "$ref": "#/$defs/systemIdentifier" },
        { "$ref": "#/$defs/functionRef" },
        { "$ref": "#/$defs/conditionalExpression" }
      ]
    },

    "geometryManipulationBinary": {
      "type": "object",
      "required": [ "function" ],
      "properties": {
        "function":
        {
           "type": "object",
           "required": [ "name", "args" ],
           "properties":
           {
              "name": {
                "type": "string",
                "enum": [ "s_intersection", "s_union", "s_difference", "s_symDifference" ]
              },
              "args": {
                "type": "array",
                "items": { "$ref": "#/$defs/spatialInstance" },
                "minItems": 2,
                "maxItems": 2
              }
           }
        }
      }
    },

    "geometryManipulationUnary": {
      "type": "object",
      "required": [ "function" ],
      "properties": {
        "function":
        {
           "type": "object",
           "required": [ "name", "args" ],
           "properties":
           {
              "name": {
                "type": "string",
                "enum": [ "s_convexHull", "s_envelope" ]
              },
              "args": {
                "type": "array",
                "items": { "$ref": "#/$defs/spatialInstance" },
                "minItems": 1,
                "maxItems": 1
              }
           }
        }
      }
    },

    "geometryBuffer": {
      "type": "object",
      "required": [ "function" ],
      "properties": {
        "function":
        {
           "type": "object",
           "required": [ "name", "args" ],
           "properties":
           {
              "name": {
                "type": "string",
                "enum": [ "s_buffer" ]
              },
              "args": {
                "type": "array",
                "prefixItems": [
                  { "$ref": "#/$defs/spatialInstance" },
                  { "$ref": "#/$defs/numericExpression" }
                ],
                "minItems": 2,
                "maxItems": 2
              }
           }
        }
      }
    },

    "conditionalExpression": {
      "type": "object",
      "required": [ "op", "args" ],
      "properties": {
        "op": { "type": "string", "enum": [ "?:" ] },
        "args": {
          "type": "array",
          "minItems": 3,
          "maxItems": 3,
          "prefixItems": [
             { "$dynamicRef": "#boolExpression" },
             { "$ref": "anyExpression" },
             { "$ref": "anyExpression" }
          ]
        }
      }
    },
    "functionRef": {
      "type": "object",
      "required": [ "function" ],
      "properties": {
        "function": {
          "$ref": "#/$defs/function"
        }
      }
    },

    "function": {
      "type": "object",
      "required": [ "name" ],
      "properties": {
        "name": {
          "type": "string"
        },
        "args": {
          "type": "array",
          "items": {
            "oneOf": [
              { "$ref": "#/$defs/characterExpression" },
              { "$ref": "#/$defs/numericExpression" },
              { "$dynamicRef": "#boolExpression" },
              { "$ref": "#/$defs/geomExpression" },
              { "$ref": "#/$defs/temporalExpression" },
              { "$ref": "#/$defs/array" }
            ]
          }
        }
      }
    },

    "scalarLiteral": {
      "oneOf": [
        { "type": "string" },
        { "type": "number" },
        { "type": "boolean" },
        { "$ref": "#/$defs/instantInstance" }
      ]
    },

    "spatialInstance": {
      "oneOf": [
        { "$ref": "#/$defs/geometryLiteral" },
        { "$ref": "#/$defs/bboxLiteral" },
        { "$ref": "#/$defs/geometryManipulationBinary" },
        { "$ref": "#/$defs/geometryManipulationUnary" },
        { "$ref": "#/$defs/geometryBuffer" }
      ]
    },
    "geometryLiteral": {
      "oneOf": [
        { "$ref": "#/$defs/point" },
        { "$ref": "#/$defs/linestring" },
        { "$ref": "#/$defs/polygon" },
        { "$ref": "#/$defs/multipoint" },
        { "$ref": "#/$defs/multilinestring" },
        { "$ref": "#/$defs/multipolygon" }
      ]
    },
    "point": {
      "title": "GeoJSON Point",
      "type": "object",
      "required": [ "type", "coordinates" ],
      "properties": {
        "type": {
          "type": "string",
          "enum": [ "Point" ]
        },
        "coordinates": {
          "type": "array",
          "minItems": 2,
          "items": {
            "type": "number"
          }
        },
        "bbox": {
          "type": "array",
          "minItems": 4,
          "items": {
            "type": "number"
          }
        }
      }
    },
    "linestring": {
      "title": "GeoJSON LineString",
      "type": "object",
      "required": [ "type", "coordinates" ],
      "properties": {
        "type": {
          "type": "string",
          "enum": [ "LineString" ]
        },
        "coordinates": {
          "type": "array",
          "minItems": 2,
          "items": {
            "type": "array",
            "minItems": 2,
            "items": {
              "type": "number"
            }
          }
        },
        "bbox": {
          "type": "array",
          "minItems": 4,
          "items": {
            "type": "number"
          }
        }
      }
    },
    "polygon": {
      "title": "GeoJSON Polygon",
      "type": "object",
      "required": [ "type", "coordinates" ],
      "properties": {
        "type": {
          "type": "string",
          "enum": [ "Polygon" ]
        },
        "coordinates": {
          "type": "array",
          "items": {
            "type": "array",
            "minItems": 4,
            "items": {
              "type": "array",
              "minItems": 2,
              "items": {
                "type": "number"
              }
            }
          }
        },
        "bbox": {
          "type": "array",
          "minItems": 4,
          "items": {
            "type": "number"
          }
        }
      }
    },
    "multipoint": {
      "title": "GeoJSON MultiPoint",
      "type": "object",
      "required": [ "type", "coordinates" ],
      "properties": {
        "type": {
          "type": "string",
          "enum": [ "MultiPoint" ]
        },
        "coordinates": {
          "type": "array",
          "items": {
            "type": "array",
            "minItems": 2,
            "items": {
              "type": "number"
            }
          }
        },
        "bbox": {
          "type": "array",
          "minItems": 4,
          "items": {
            "type": "number"
          }
        }
      }
    },
    "multilinestring": {
      "title": "GeoJSON MultiLineString",
      "type": "object",
      "required": [ "type", "coordinates" ],
      "properties": {
        "type": {
          "type": "string",
          "enum": [ "MultiLineString" ]
        },
        "coordinates": {
          "type": "array",
          "items": {
            "type": "array",
            "minItems": 2,
            "items": {
              "type": "array",
              "minItems": 2,
              "items": {
                "type": "number"
              }
            }
          }
        },
        "bbox": {
          "type": "array",
          "minItems": 4,
          "items": {
            "type": "number"
          }
        }
      }
    },
    "multipolygon": {
      "title": "GeoJSON MultiPolygon",
      "type": "object",
      "required": [ "type", "coordinates" ],
      "properties": {
        "type": {
          "type": "string",
          "enum": [ "MultiPolygon" ]
        },
        "coordinates": {
          "type": "array",
          "items": {
            "type": "array",
            "items": {
              "type": "array",
              "minItems": 4,
              "items": {
                "type": "array",
                "minItems": 2,
                "items": {
                  "type": "number"
                }
              }
            }
          }
        },
        "bbox": {
          "type": "array",
          "minItems": 4,
          "items": {
            "type": "number"
          }
        }
      }
    },
    "bboxLiteral": {
      "type": "object",
      "required": [
        "bbox"
      ],
      "properties": {
        "bbox": {
          "$ref": "#/$defs/bbox"
        }
      }
    },
    "bbox": {
      "type": "array",
      "oneOf": [
        { "minItems": 4, "maxItems": 4 },
        { "minItems": 6, "maxItems": 6 }
      ],
      "items": { "type": "number" }
    },

    "temporalInstance": {
      "oneOf": [
        { "$ref": "#/$defs/instantInstance" },
        { "$ref": "#/$defs/intervalInstance" }
      ]
    },
    "instantInstance": {
      "oneOf": [
        { "$ref": "#/$defs/dateInstant" },
        { "$ref": "#/$defs/timestampInstant" }
      ]
    },
    "dateInstant": {
      "type": "object",
      "required": [ "date" ],
      "properties": {
        "date": { "$ref": "#/$defs/dateString" }
      }
    },
    "timestampInstant": {
      "type": "object",
      "required": [ "timestamp" ],
      "properties": {
        "timestamp": { "$ref": "#/$defs/timestampString" }
      }
    },
    "instantString": {
      "oneOf": [
        { "$ref": "#/$defs/dateString" },
        { "$ref": "#/$defs/timestampString" }
      ]
    },
    "dateString": {
      "type": "string",
      "format": "date"
    },
    "timestampString": {
      "type": "string",
      "format": "date-time"
    },
    "intervalInstance": {
      "type": "object",
      "required": [ "interval" ],
      "properties": {
        "interval": { "$ref": "#/$defs/intervalArray" }
      }
    },
    "intervalArray": {
      "type": "array",
      "minItems": 2,
      "maxItems": 2,
      "items": {
        "oneOf": [
          { "$ref": "#/$defs/instantString" },
          { "type": "string", "enum": [ ".." ] },
          { "$ref": "#/$defs/propertyRef" },
          { "$ref": "#/$defs/systemIdentifier" },
          { "$ref": "#/$defs/functionRef" },
          { "$ref": "#/$defs/conditionalExpression" }
        ]
      }
    }
  }
}