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Chris little schema fragments 1 #226

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2380698
Create readme.adoc for CoverageJSON schema
chris-little Jul 2, 2026
6db7416
Added schema fragments
chris-little Jul 2, 2026
eb540d7
Delete standard/schema/fragments directory
chris-little Jul 2, 2026
85b06db
Add README for CoverageJSON schema components
chris-little Jul 2, 2026
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3 changes: 3 additions & 0 deletions standard/schema/README.ADOC
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The various components of the CoverageJSON schema, which can be built into the CoverageJSON.json bundle and also tweaked to create the appropriate dialect of JSON Schema.
The original community-based CoverageJSON used dialect DRAFT-07. The current OGC version 1.0 uses 2019-09. V1.0.1 will probably use dialect 2020-12, as required by OpenAPI V3.1.
In the future, IETF will probably define a standardised JSON Schema.
7 changes: 7 additions & 0 deletions standard/schema/anyAxis.json
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{
"$id": "/schemas/anyAxis",
"description" : "Validates any axis",
"if" : { "required" : [ "values" ] },
"then": { "$ref": "/schemas/valuesAxis" },
"else": { "$ref": "/schemas/numericRegularlySpacedAxis" }
}
13 changes: 13 additions & 0 deletions standard/schema/coverage.json
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{
"$id" : "/schemas/coverage",
"$ref": "/schemas/coverageBase",
"required" : [ "parameters" ],
"properties":
{
"domain":
{
"if": { "type": "object" },
"then": { "required": [ "referencing" ] }
}
}
}
102 changes: 102 additions & 0 deletions standard/schema/coverageBase.json
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{
"$id" : "/schemas/coverageBase",
"description" : "A Coverage, representing a mapping from a domain to sets of data values described by parameters.",
"type" : "object",
"properties" :
{
"type" : { "const" : "Coverage" },
"id": { "type": "string" },
"domainType" : { "type" : "string" },
"domain":
{
"allOf" :
[
{
"type": [ "string", "object" ]
},
{
"if": { "type": "object" },
"then": { "$ref" : "/schemas/domainBase" }
}
]
},
"parameters":
{
"type": "object",
"patternProperties" :
{
".+" : { "$ref": "/schemas/parameter" }
}
},
"parameterGroups":
{
"type": "array",
"items": { "$ref": "/schemas/parameterGroup" }
},
"ranges":
{
"type": "object",
"patternProperties" :
{
".+" :
{
"allOf" :
[
{
"type": [ "string", "object" ]
},
{
"if":
{
"type": "object"
},
"then":
{
"properties":
{
"type":
{
"enum":
[
"NdArray",
"TiledNdArray"
]
}
},
"required": ["type"]
}
},
{
"if":
{
"type": "object",
"properties" :
{
"type" : { "const" : "NdArray" }
}
},
"then":{ "$ref": "/schemas/ndArray" }
},
{
"if":
{
"type": "object",
"properties" :
{
"type" : { "const" : "TiledNdArray" }
}
},
"then":{ "$ref": "/schemas/tiledNdArray" }
}
]
}
}
},
"rangeAlternates":
{
"type": "object"
}
},
"required" : [ "type", "domain", "ranges" ]

}
88 changes: 88 additions & 0 deletions standard/schema/coverageCollection.json
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{
"$id" : "/schemas/coverageCollection",
"description": "A collection of coverage objects",
"properties":
{
"type" : { "const" : "CoverageCollection" },
"domainType": { "type": "string" },
"parameters":
{
"type": "object",
"patternProperties" :
{
".+" : { "$ref": "/schemas/parameter" }
}
},
"parameterGroups":
{
"type": "array",
"items": { "$ref": "/schemas/parameterGroup" }
},
"referencing":
{
"type": "array",
"items": { "$ref": "/schemas/referenceSystemConnection" }
},
"coverages": {
"type": "array",
"items": { "$ref": "/schemas/coverageBase" }
}
},
"required" : [ "type", "coverages" ],
"allOf":
[
{
"$comment": "If no parameters are present at collection level then each coverage must have their own",
"if":
{
"not":
{
"required": [ "parameters" ]
}
},
"then":
{
"properties":
{
"coverages":
{
"items":
{
"required": [ "parameters" ]
}
}
}
}
},
{
"$comment": "If no \"referencing\" member is present at collection level then each coverage domain must have its own",
"if":
{
"not":
{
"required": [ "referencing" ]
}
},
"then":
{
"properties":
{
"coverages":
{
"items":
{
"properties":
{
"domain":
{
"if": { "type": "object" },
"then": { "required": [ "referencing" ] }
}
}
}
}
}
}
}
]
}
5 changes: 5 additions & 0 deletions standard/schema/domain.json
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{
"$id" : "/schemas/domain",
"$ref": "/schemas/domainBase",
"required" : [ "referencing" ]
}
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