{
	"$schema": "https://json-schema.org/draft/2019-09/schema",
   "description": "A tile matrix, usually corresponding to a particular zoom level of a TileMatrixSet.",
	"type": "object",
	"required": ["id", "scaleDenominator", "cellSize", "pointOfOrigin", "tileWidth", "tileHeight", "matrixWidth", "matrixHeight"],
	"properties":
	{
		"title": {
			"description": "Title of this tile matrix, normally used for display to a human",
			"type": "string"
		},
		"description": {
			"description": "Brief narrative description of this tile matrix set, normally available for display to a human",
			"type": "string"
		},
		"keywords": {
			"description": "Unordered list of one or more commonly used or formalized word(s) or phrase(s) used to describe this dataset",
			"type": "array",
			"items": {
				"type": "string"
			}
		},
		"id": {
			"description": "Identifier selecting one of the scales defined in the TileMatrixSet and representing the scaleDenominator the tile. Implementation of 'identifier'",
			"type": "string"
		},
		"scaleDenominator": {
			"description": "Scale denominator of this tile matrix",
			"type": "number"
		},
		"cellSize": {
			"description": "Cell size of this tile matrix",
			"type": "number"
		},
		"cornerOfOrigin": {
			"description": "The corner of the tile matrix (_topLeft_ or _bottomLeft_) used as the origin for numbering tile rows and columns. This corner is also a corner of the (0, 0) tile.",
			"type": "string",
			"enum": ["topLeft", "bottomLeft"],
			"default": "topLeft"
		},
		"pointOfOrigin": { "allOf": [
			{ "description": "Precise position in CRS coordinates of the corner of origin (e.g. the top-left corner) for this tile matrix. This position is also a corner of the (0, 0) tile. In previous version, this was 'topLeftCorner' and 'cornerOfOrigin' did not exist." },
			{ "$ref": "2DPoint.json" }
		] },
		"tileWidth":
		{
			"type": "number",
			"description": "Width of each tile of this tile matrix in pixels",
			"format": "integer",
			"minimum": 1,
			"multipleOf" : 1
		},
		"tileHeight":
		{
			"type": "number",
			"description": "Height of each tile of this tile matrix in pixels",
			"format": "integer",
			"minimum": 1,
			"multipleOf" : 1
		},
		"matrixHeight":
		{
			"type": "number",
			"description": "Width of the matrix (number of tiles in width)",
			"format": "integer",
			"minimum": 1,
			"multipleOf" : 1
		},
		"matrixWidth":
		{
			"type": "number",
			"description": "Height of the matrix (number of tiles in height)",
			"format": "integer",
			"minimum": 1,
			"multipleOf" : 1
		},
		"variableMatrixWidths": {
			"description": "Describes the rows that has variable matrix width",
			"type": "array",
			"items": {
				"$ref": "variableMatrixWidth.json"
			}
		}
	}
}