precision lose when using latitude and longitude

[carlin314]

The correct line is red, while converted spatilite is purple, what can be the reason?

I hope you can help me to figure it out

My test geojson
1591263744_bak.geojson.tar.gz

[carlin314]

I found it is cause by geojson library used by you, its defualt precision is 6

[chris48s]

You are right that this behaviour is caused by a third-party library. There's a long thread about this at jazzband/geojson#135 and I understand why they've made this decision ( https://tools.ietf.org/html/rfc7946#section-11.2 ) but I feel like the implementation is a bit unhelpful and the issue is going nowhere.

In this library, using geojson was helpful for a bit of validation on load, but beyond that its not really buying me a lot over a straight json.load(). Given it introduces a problem here and there isn't really a good workaround, I've just published version 0.3.1 which drops the dependency on geojson and removes this rounding issue.

Give it a try.

[carlin314]

It work fine, thx for your work