GIS Item JSON Format

Overview

The GIS Item JSON structure in Dataloop provides a comprehensive format that encapsulates all necessary data and metadata for each annotated entity within the system. This structure is designed to represent an 'Item' — a core data unit in Dataloop's platform — and its associated information for annotation purposes. Here’s a breakdown based on the provided content:

The JSON Structure

Each data entity in Dataloop’s system has a dedicated JSON format that encapsulates the item’s data and metadata, enabling efficient tracking, access, and management within the platform. This JSON file is essential for exporting or downloading item annotations and can be accessed for detailed inspection or integration purposes.

GIS Item JSON Format

{
    "type": "gis",                              //For the type of Web Map Item, it should be GIS only and mandatory
    "shebang": "dataloop",                      //For the type of Web Map Item, it should be dataloop only and mandatory
    "metadata": {
        "dltype": "gis"                         //For the type of Web Map Item, it should be gis only and mandatory
    },
    "layer": {                                  // Representing the Tile Layer - it's a mandatory layer object
        "name": "OpenStreetMap",
        "type": "xyz",                          // Currently supporting "xyz", "osm" and "cog" types only
        "url": "https://dummy-tile.com/surveys/1723928/tiles/{z}/{x}/{y}?auth_token=fM68PVOJO8p5m2sPo4Cqdcoi4sLSsecR&datatype_name=vexcel_urban_vertical_jpg"
    },
    "optionalLayers":                           // Representing the Optional Layers array, which can have multiple layers("xyz", "osm" and "cog")
    [ 
        {
            "name": "OpenStreetMap",
            "type": "osm",
            "url": ""
        }
    ],
    "zoom":20,                                  // It's an optional zoom level, which can be between 0 to 28
    "minZoom":0,                                // It's an optional min zoom level, which can be between 0 to 28
    "maxZoom":30,                               // It's an optional max zoom level, which can be between 1 to 28
    "epsg":"4326",                              // Representing the file's Coordinate System . (3857, 3035, 4326)
    "bounds": [                                 // The coordinates that represents the (square) area within the map that the user can view, and should add/edit the annotations. I.e. the bounds where the projection is valid. Optional field.
        [-118.33559370040894, 33.82662439264756],//top left
        [-118.33497619628906, 33.82610016009953]//bottom    right
    ],
    "aoi": [                                    // Coordinates representing the Area of Interest -- The areas within the bounds of the tile layer, where I allow to create annotations. I.e. the “boarders of the canvas”. Optional field. 
        [-118.33545684814453, 33.826504880358854],
        [-118.33545684814453, 33.82621967238824],
        [-118.33511352539062, 33.82621967238824],
        [-118.33511352539062, 33.826504880358854],
        [-118.33545684814453, 33.826504880358854]
    ]
}

GIS Item JSON Fields Description