{
  "title": "IconSymbol3DLayer Resource",
  "type": "object",
  "$schema": "http://json-schema.org/draft-04/schema",
  "description": "The shape (primitive) or image URL (href) used to visualize the features.",
  "properties": {
    "dataURI": {
      "type": "string",
      "description": "an image encoded as base64 string, starting with `data:image/`",
      "pattern": "^data:image/(.|\\n|\\r)+$"
    },
    "href": {
      "description": "URL to the returned image.",
      "oneOf": [
        {
          "type": "string",
          "description": "An absolute URL",
          "pattern": "^https?://.+$"
        },
        {
          "type": "string",
          "description": "A relative path starting with ./",
          "pattern": "^\\./.+$"
        }
      ]
    },
    "primitive": {
      "type": "string",
      "description": "Specifies the type of symbol used.",
      "enum": [
        "circle",
        "cross",
        "kite",
        "square",
        "triangle",
        "x"
      ]
    }
  },
  "oneOf": [
    {
      "required": [
        "primitive"
      ]
    },
    {
      "required": [
        "href"
      ]
    },
    {
      "required": [
        "dataURI"
      ]
    }
  ],
  "additionalProperties": false
}