boundingVolume.schema.json

{
    "$schema" : "http://json-schema.org/draft-04/schema",
    "id" : "boundingVolume.schema.json",
    "title" : "Bounding Volume",
    "type" : "object",
    "description" : "A bounding volume that encloses a tile or its contents.  Exactly one property is required.",
    "properties" : {
        "box" : {
            "type" : "array",
            "description" : "An array of 12 numbers that define an oriented bounding box.  The first three elements define the x, y, and z values for the center of the box.  The next three elements (with indices 3, 4, and 5) define the x axis direction and length.  The next three elements (indices 6, 7, and 8) define the y axis direction and length.  The last three elements (indices 9, 10, and 11) define the z axis direction and length.",
            "items" : {
                "type" : "number"
            },
            "minItems" : 12,
            "maxItems" : 12
        },
        "region" : {
            "type" : "array",
            "description" : "An array of six numbers that define a bounding geographic region with the order [west, south, east, north, minimum height, maximum height]. Longitudes and latitudes are in radians, and heights are in meters above (or below) the WGS84 ellipsoid.",
            "items" : {
                "type" : "number"
            },
            "minItems" : 6,
            "maxItems" : 6
        },
        "sphere" : {
            "type" : "array",
            "description" : "An array of four numbers that define a bounding sphere.  The first three elements define the x, y, and z values for the center of the sphere.  The last element (with index 3) defines the radius in meters.",
            "items" : {
                "type" : "number"
            },
            "minItems" : 4,
            "maxItems" : 4
        }
    },
    "oneOf" : [{
        "required" : ["box"]
    }, {
        "required" : ["region"]
    }, {
        "required" : ["sphere"]
    }],
    "additionalProperties" : false
}