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Add data/crsjson.schema.json
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@rouault
rouault committed Jul 6, 2019
1 parent ddb0ac6 commit 0cd95c0
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4 changes: 3 additions & 1 deletion data/Makefile.am
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,8 @@ DATAPATH = $(top_srcdir)/data

pkgdata_DATA = GL27 nad.lst nad27 nad83 world other.extra \
CH null \
ITRF2000 ITRF2008 ITRF2014 proj.db
ITRF2000 ITRF2008 ITRF2014 proj.db \
crsjson.schema.json

SQL_ORDERED_LIST = sql/begin.sql \
sql/proj_db_table_defs.sql \
Expand Down Expand Up @@ -40,6 +41,7 @@ EXTRA_DIST = GL27 nad.lst nad27 nad83 \
world other.extra \
CH \
ITRF2000 ITRF2008 ITRF2014 \
crsjson.schema.json \
CMakeLists.txt tests/test_nodata.gtx null \
generate_all_sql_in.cmake sql_filelist.cmake \
$(SQL_ORDERED_LIST)
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291 changes: 291 additions & 0 deletions data/crsjson.schema.json
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@@ -0,0 +1,291 @@
{
"$id": "https://proj.org/crsjson.schema.json",
"$schema": "http://json-schema.org/draft-07/schema#",
"description": "Schema for CRS JSON",

"oneOf": [
{ "$ref": "#/definitions/crs" },
{ "$ref": "#/definitions/datum" },
{ "$ref": "#/definitions/ellipsoid" }
],

"definitions": {

"axis": {
"type": "object",
"properties": {
"type": { "type": "string", "enum": ["Axis"] },
"name": { "type": "string" },
"abbreviation": { "type": "string" },
"direction": { "type": "string" },
"unit": { "$ref": "#/definitions/unit" },
"id": { "$ref": "#/definitions/id" }
},
"required" : [ "name" ],
"additionalProperties": false
},

"bbox": {
"type": "object",
"properties": {
"east_longitude": { "type": "number" },
"west_longitude": { "type": "number" },
"south_latitude": { "type": "number" },
"north_latitude": { "type": "number" }
},
"required" : [ "east_longitude", "west_longitude",
"south_latitude", "north_latitude" ],
"additionalProperties": false
},

"conversion": {
"type": "object",
"properties": {
"type": { "type": "string", "enum": ["Conversion"] },
"name": { "type": "string" },
"method": { "$ref": "#/definitions/method" },
"parameters": {
"type": "array",
"items": { "$ref": "#/definitions/parameter_value" }
},
"id": { "$ref": "#/definitions/id" }
},
"required" : [ "name", "method", "parameters" ],
"additionalProperties": false
},

"coordinate_system": {
"type": "object",
"properties": {
"type": { "type": "string", "enum": ["CoordinateSystem"] },
"subtype": { "type": "string" },
"axis": {
"type": "array",
"items": { "$ref": "#/definitions/axis" }
},
"id": { "$ref": "#/definitions/id" }
},
"required" : [ "subtype", "axis" ],
"additionalProperties": false
},

"crs": {
"oneOf": [
{ "$ref": "#/definitions/geodetic_crs" },
{ "$ref": "#/definitions/derived_crs" }
]
},

"datum": {
"oneOf": [ { "$ref": "#/definitions/geodetic_reference_frame" } ]
},

"derived_crs": {
"type": "object",
"allOf": [{ "$ref": "#/definitions/object_usage" }],
"properties": {
"type": { "type": "string",
"enum": ["ProjectedCRS", "DerivedGeodeticCRS",
"DerivedGeographicCRS"] },
"name": { "type": "string" },
"base_crs": { "$ref": "#/definitions/crs" },
"conversion": { "$ref": "#/definitions/conversion" },
"coordinate_system": { "$ref": "#/definitions/coordinate_system" },
"area": {},
"bbox": {},
"usages": {},
"remarks": {},
"id": {}
},
"required" : [ "name", "base_crs", "conversion", "coordinate_system" ],
"additionalProperties": false
},

"ellipsoid": {
"type": "object",
"oneOf":[
{
"properties": {
"type": { "type": "string", "enum": ["Ellipsoid"] },
"name": { "type": "string" },
"semi_major_axis": { "$ref": "#/definitions/value_and_unit" },
"semi_minor_axis": { "$ref": "#/definitions/value_and_unit" },
"id": { "$ref": "#/definitions/id" }
},
"required" : [ "name", "semi_major_axis", "semi_minor_axis" ],
"additionalProperties": false
},
{
"properties": {
"type": { "type": "string", "enum": ["Ellipsoid"] },
"name": { "type": "string" },
"semi_major_axis": { "$ref": "#/definitions/value_and_unit" },
"inverse_flattening": { "type": "number" },
"id": { "$ref": "#/definitions/id" }
},
"required" : [ "name", "semi_major_axis", "inverse_flattening" ],
"additionalProperties": false
},
{
"properties": {
"type": { "type": "string", "enum": ["Ellipsoid"] },
"name": { "type": "string" },
"radius": { "$ref": "#/definitions/value_and_unit" },
"id": { "$ref": "#/definitions/id" }
},
"required" : [ "name", "radius" ],
"additionalProperties": false
}
]
},

"geodetic_crs": {
"type": "object",
"allOf": [{ "$ref": "#/definitions/object_usage" }],
"properties": {
"type": { "type": "string", "enum": ["GeodeticCRS", "GeographicCRS"] },
"name": { "type": "string" },
"datum": { "$ref": "#/definitions/datum" },
"coordinate_system": { "$ref": "#/definitions/coordinate_system" },
"area": {},
"bbox": {},
"usages": {},
"remarks": {},
"id": {}
},
"required" : [ "name", "datum" ],
"additionalProperties": false
},

"geodetic_reference_frame": {
"type": "object",
"allOf": [{ "$ref": "#/definitions/object_usage" }],
"properties": {
"type": { "type": "string", "enum": ["GeodeticReferenceFrame"] },
"name": { "type": "string" },
"anchor": { "type": "string" },
"ellipsoid": { "$ref": "#/definitions/ellipsoid" },
"prime_meridian": { "$ref": "#/definitions/prime_meridian" },
"area": {},
"bbox": {},
"usages": {},
"remarks": {},
"id": {}
},
"required" : [ "name", "ellipsoid" ],
"additionalProperties": false
},

"id": {
"type": "object",
"properties": {
"authority": { "type": "string" },
"code": {
"oneOf": [ { "type": "string" }, { "type": "integer" } ]
}
},
"required" : [ "authority", "code" ],
"additionalProperties": false
},

"method": {
"type": "object",
"properties": {
"type": { "type": "string", "enum": ["OperationMethod"]},
"name": { "type": "string" },
"id": { "$ref": "#/definitions/id" }
},
"required" : [ "name" ],
"additionalProperties": false
},

"object_usage": {
"anyOf": [
{
"type": "object",
"properties": {
"area": { "type": "string" },
"bbox": { "$ref": "#/definitions/bbox" },
"remarks": { "type": "string" },
"id": { "$ref": "#/definitions/id" }
}
},
{
"type": "object",
"properties": {
"usages": { "$ref": "#/definitions/usages" },
"remarks": { "type": "string" },
"id": { "$ref": "#/definitions/id" }
}
}
]
},

"parameter_value": {
"type": "object",
"properties": {
"type": { "type": "string", "enum": ["ParameterValue"] },
"name": { "type": "string" },
"value": {
"oneOf": [
{ "type": "string" },
{ "type": "number" }
]
},
"unit": { "$ref": "#/definitions/unit" },
"id": { "$ref": "#/definitions/id" }
},
"required" : [ "name", "value" ],
"additionalProperties": false
},

"prime_meridian": {
"type": "object",
"properties": {
"type": { "type": "string", "enum": ["PrimeMeridian"] },
"name": { "type": "string" },
"longitude": { "$ref": "#/definitions/value_and_unit" },
"id": { "$ref": "#/definitions/id" }
},
"required" : [ "name" ],
"additionalProperties": false
},

"unit": {
"type": "object",
"properties": {
"type": { "type": "string",
"enum": ["LinearUnit", "AngularUnit", "ScaleUnit",
"TimeUnit", "ParametricUnit", "Unit"] },
"name": { "type": "string" },
"conversion_factor": { "type": "number" },
"id": { "$ref": "#/definitions/id" }
},
"required" : [ "type", "name" ],
"additionalProperties": false
},

"usages": {
"type": "array",
"items": {
"type": "object",
"properties": {
"area": { "type": "string" },
"bbox": { "$ref": "#/definitions/bbox" }
},
"additionalProperties": false
}
},

"value_and_unit": {
"type": "object",
"properties": {
"value": { "type": "number" },
"unit": { "$ref": "#/definitions/unit" }
},
"required" : [ "value", "unit" ],
"additionalProperties": false
}

}
}

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