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typescriptgeometryturfjs

How to check if loop is closed using turf booleanValid in TypeScript?

I use TypeScript and currently I wish to validate a Geometry object.
I use booleanValid from turf package to ensure that the object is valid.

const isGeometryValid: boolean = booleanValid(geometry as unknown as Geometry);

After testing I found out that the booleanValid only checks the Right-Hand Rule and doesn't check if the loop is closed.
The following array returned true even though the loop is not closed just because it satisfies the Right-Hand Rule:

[ [ [0,0], [10,0], [10,10], [0,10], [0,8] ] ]

I need a way to check all the validations for Geometry and not just one or some of them

Solution

  • booleanValid is unstable in its current state and I was advised by a collaborator to find an alternative for using turf for validating geometry objects.

    I personally would say in it's current state not to rely on booleanValid for comprehensive GeoJSON validation. You could potentially look at packages such as https://github.com/placemark/check-geojson and https://github.com/mapbox/geojsonhint which may offer similar alternatives depending on your requirements.