Import

When you import Polyline annotations via the Model-assisted labeling workflow, your JSON file must contain the following information for each Polyline.

Parameter	Asset type	Required	Description
`uuid`	Image Tiled imagery	Yes	A user-generated UUID for each annotation. If you import an annotation to a Data Row and there is already an imported annotation with the same uuid on that Data Row, the latest import will override the previous one. The uuid must be 128 bits (32 characters). The following formats are supported: `A0EEBC99-9C0B-4EF8-BB6D-6BB9BD380A11` `{a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11}` `a0eebc999c0b4ef8bb6d6bb9bd380a11` `a0ee-bc99-9c0b-4ef8-bb6d-6bb9-bd38-0a11` `{a0eebc99-9c0b4ef8-bb6d6bb9-bd380a11}`
`schemaId`	Image Tiled imagery	Yes	The ID of the schema that contains all of the information needed for rendering your annotation.
`dataRow.id`	Image Tiled imagery	Yes	The ID of the Data Row where you want to attach the imported annotations.
`line.x`	Image Tiled imagery	Yes	x-coordinate for a single point on the Polyline annotation.
`line.y`	Image Tiled imagery	Yes	y-coordinate for a single point on the Polyline annotation.

{
    "uuid": "62e1d949-1c75-47f6-9ea2-e938da17d37c",
    "schemaId": "ck68grts29n7z08903nvgaim5",
    "dataRow": { 
        "id": "cjxav5aa07r1g0dsq70t9eveg" 
    }, 
    "line": [ 
        { 
            "x": 58, 
            "y": 148 
        }, 
        { 
            "x": 135, 
            "y": 79 
        }, 
        { 
            "x": 53, 
            "y": 191 
        } 
    ]
}

{
    "uuid": "62e1d949-1c75-47f6-9ea2-e938da17d37c",
    "schemaId": "ck68grts29n7z08903nvgaim5",
    "dataRow": { 
        "id": "cjxav5aa07r1g0dsq70t9eveg" 
    }, 
    "line": [ 
        { 
            "x": 58, 
            "y": 148 
        }, 
        { 
            "x": 135, 
            "y": 79 
        }, 
        { 
            "x": 53, 
            "y": 191 
        } 
    ]
}

Export

When you export your Polyline annotations from Labelbox, the export file will contain the following information for each Polyline.

Parameter	Asset type	Description
`schemaId`	Image Video Tiled imagery	The ID of the schema containing all of the information needed for rendering your annotation.
`featureId`	Image Video Tiled imagery	ID of the annotation.
`title`	Image Video Tiled imagery	Name of the annotation in the ontology.
`color`	Image Video Tiled imagery	Color of the annotation in the ontology.
`line.x`	Image Video	x coordinate for a single point on the Polyline annotation.
`line.y`	Image Video	y coordinate for a single point on the Polyline annotation.
`instanceURI`	Image	Annotation information hosted on Labelbox servers.
`type`	Tiled imagery	Annotation type. Value should be `polyline`.
`geometry.coordinates`	Tiled imagery	Longitude and latitude, in that order.

{
    "featureId": "ckmuuwb1p00073g68vg3t615r",
    "schemaId": "ckmuuvs5r5njc0y623c4s1dob",
    "title": "Tree branch",
    "value": "tree_branch",
    "color": "#008941",
    "line": [
        {
            "x": 198.027,
            "y": 1979.196
        },
        {
            "x": 321.472,
            "y": 1801.743
        },
        {
            "x": 465.491,
            "y": 1655.152
        }
    ],
    "instanceURI": "https://api.labelbox.com/masks/feature/ckmuuwb1p00073g68vg3t615r?token=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VySWQiOiJjazUycnZ4MWtxYXpiMDc3MDBtcTI3eDRsIiwib3JnYW5pemF0aW9uSWQiOiJjazUycnZ4MG1wdzRnMDc2NndncXZqdGw5IiwiaWF0IjoxNjE3MDM4NDAwLCJleHAiOjE2MTk2MzA0MDB9.5YaORL6mWpPqgAb6IbWChm4MQo14obOU8LFWbfCEHR0"
}

{
            "featureId": "ckt37btlp00063h6b8srqrsr8",
            "schemaId": "ckt09rb8q7zsu0yc24y3w85m5",
            "title": "Center lane",
            "value": "center_lane",
            "color": "#2f05f1",
            "keyframe": true,
            "line": [
                {
                    "x": 661.215,
                    "y": 2146.298
                },
                {
                    "x": 961.767,
                    "y": 1907.624
                },
                {
                    "x": 1262.32,
                    "y": 1668.95
                }
            ],
            "classifications": []
        }

{
    "featureId": "ckossvrll00033h68tczgb8p9",
    "schemaId": "ckosstz24fhci0yag63j377hz",
    "title": "line",
    "value": "line",
    "color": "#FF34FF",
    "type": "polyline",
    "geometry": {
        "coordinates": [
            [
                151.20330452874953,
                -33.866105019363175
            ],
            [
                151.20364785147953,
                -33.866737933344254
            ]
        ]
    }
}