{
  "id" : "ElevationContours",
  "title" : "Elevation contours tracer",
  "version" : "1.0.0",
  "jobControlOptions": [
    "sync-execute"
  ],
  "outputTransmission" : [ "value" ],
  "description" : "Elevation contours tracer; inputs: data (elevation coverage); distance (in meters)",
  "links" : [ {
    "href" : "https://maps.gnosis.earth/ogcapi/processes/ElevationContours/execution",
    "rel" : "http://www.opengis.net/def/rel/ogc/1.0/execute",
    "title" : "Execution endpoint"
  } ],
  "inputs" : {
    "data" :
    {
      "title" : "The data collection",
      "description" : "Url of the collection to be used as data source.",
      "minOccurs" : 1,
      "maxOccurs" : 1,
      "schema" : {
          "oneOf": [
          {
            "type": "string",
            "contentEncoding": "binary",
            "contentMediaType": "image/tiff; application=geotiff"
          },
          {
            "type": "string",
            "contentEncoding": "binary",
            "contentMediaType": "image/png"
          }
        ]
      }
    },
    "distance" : {
      "title" : "The distance between contours",
      "description" : "Distance between contour lines in meters.",
      "minOccurs" : 1,
      "maxOccurs" : 1,
      "keywords" : [],
      "metadata" : [],
      "schema" : {
         "type" : "number",
         "format" : "double",
         "minimum" : 0,
         "default" : 300.0,
         "exclusiveMinimum" : true
      }
    },
    "minHeight" : {
      "title" : "Minimum elevation for contours",
      "description" : "The minimum elevation in meters.",
      "minOccurs" : 0,
      "maxOccurs" : 1,
      "keywords" : [],
      "metadata" : [],
      "schema" : {
         "type" : "number",
         "format" : "double",
         "default" : -11000.0
      }
    },
    "maxHeight" : {
      "title" : "Maximum elevation for contours",
      "description" : "The maximum elevation in meters.",
      "minOccurs" : 0,
      "maxOccurs" : 1,
      "keywords" : [],
      "metadata" : [],
      "schema" : {
         "type" : "number",
         "format" : "double",
         "minimum" : 0,
         "default" : 9000.0,
         "exclusiveMinimum" : true
      }
    },
    "geometryType" : {
      "title" : "Type of contours geometry",
      "description" : "The type of vector geometry to generate contours as (lines or polygons)",
      "minOccurs" : 0,
      "maxOccurs" : 1,
      "keywords" : [],
      "metadata" : [],
      "schema" : {
        "type" : "string",
        "enum": [
           "lines",
           "polygons"
        ],
        "default" : "lines"
      }
    }
  },
  "outputs" : {
    "contours" :
    {
      "title" : "Generated contours",
      "description": "Contours generated by the process",
        "schema" : {
            "type": "object",
            "contentMediaType": "application/geo+json",
            "$ref": "https://geojson.org/schema/FeatureCollection.json"
        }
     }
  }
}