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The structure types are defined in a collapsible hierarchy ranging from four major classes (Coral Reef and Hardbottom, Unconsolidated Sediment, Other Delineations, and Unknown), to sixteen detailed classes (Rock Outcrop, Boulder, Spur and Groove, Individual Patch Reef, Aggregated Patch Reefs, Aggregate Reef, Reef Rubble, Pavement, Pavement with Sand Channels, Rhodoliths, Sand, Mud, Sand with Scattered Coral and Rock, Artificial, Land, and Unknown).", "geometryType": "esriGeometryPolygon", "sourceSpatialReference": { "wkid": 102100, "latestWkid": 3857, "xyTolerance": 0.001, "zTolerance": 2, "mTolerance": 2, "falseX": -20037700, "falseY": -30241100, "xyUnits": 10000, "falseZ": -100000, "zUnits": 1, "falseM": -100000, "mUnits": 1 }, "copyrightText": "NOAA/NOS/NCCOS/MSE/Biogeography Branch", "parentLayer": { "id": 49, "name": "St. John USVI (2009)" }, "subLayers": [], "minScale": 0, "maxScale": 0, "referenceScale": 0.0, "drawingInfo": { "renderer": { "type": "uniqueValue", "field1": "D_STRUCT", "uniqueValueInfos": [ { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 255, 0, 0, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSNull", "color": [ 0, 0, 0, 255 ], "width": 0 } }, "value": "Aggregate Reef", "label": "Aggregate Reef" }, { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 255, 127, 127, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSNull", "color": [ 0, 0, 0, 255 ], "width": 0 } }, "value": "Aggregated Patch Reefs", "label": "Aggregated Patch Reefs" }, { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 255, 190, 190, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSNull", "color": [ 0, 0, 0, 255 ], "width": 0 } }, "value": "Individual Patch Reef", "label": "Individual Patch Reef" }, { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 255, 235, 175, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSNull", "color": [ 0, 0, 0, 255 ], "width": 0 } }, "value": "Sand with Scattered Coral and Rock", "label": "Sand with Scattered Coral and Rock" }, { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 255, 170, 0, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSNull", "color": [ 0, 0, 0, 255 ], "width": 0 } }, "value": "Spur and Groove", "label": "Spur and Groove" }, { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 115, 223, 255, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSNull", "color": [ 0, 0, 0, 255 ], "width": 0 } }, "value": "Pavement", "label": "Pavement" }, { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 211, 255, 190, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSNull", "color": [ 0, 0, 0, 255 ], "width": 0 } }, "value": "Pavement with Sand Channels", "label": "Pavement with Sand Channels" }, { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 0, 38, 115, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSNull", "color": [ 0, 0, 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