Bug? GeomFromGeoJSON returns null for 2.5D GeometryCollections

Adrian Batzill

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Feb 8, 2022, 9:16:02 AM2/8/22

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Hi,

I noticed a strange thing with Spatialite 5.0.1 today:

when calling GeomFromGeoJSON for a 2.5D GeometryCollection, it returns null for some reason.

The individual LineStrings can be read without problems when not having the GeometryCollection around it.

Also, the GeometryCollection seems to parse fine if I remove all the Z coordinates.

Is there any workaround for this?/am I missing something?

Thanks

Adrian

Example call:

SELECT AsText(GeomFromGeoJSON('
{
    "type": "GeometryCollection",
    "geometries": [
        {
            "type": "LineString",
            "coordinates": [
                [
                    9.05618268003033,
                    47.8205085371546,
                    501.0
                ],
                [
                    9.05592594023042,
                    47.8202476728863,
                    501.0
                ],
                [
                    9.05589510917812,
                    47.8202621648322,
                    501.2
                ]
            ]
        },
        {
            "type": "LineString",
            "coordinates": [
                [
                    9.05601815334443,
                    47.8203413635765,
                    501.2
                ],
                [
                    9.0559909008558,
                    47.8203542702468,
                    501.3
                ]
            ]
        }
    ]
}
'));

Message has been deleted

Alessandro Furieri

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Mar 7, 2022, 2:35:41 AM3/7/22

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I confirm: there was a bug affecting the GeoJSON parser that made
impossible to correctly identify any GeometryCollection of the
3D type lacking an explicit definition of the CRS and/or BBOX.

possible workaround: just adding the CRS and/or BOOX members
apparently resolves this issue.

since my last commit in the Fossil repository, the GeoJSON parser
has been corrected appropriately.

bye Sandro

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