Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Spike polygon in Pakistan, quadkey: 12310213122 #99

Open
johnphilippowell opened this issue Mar 28, 2024 · 0 comments
Open

Spike polygon in Pakistan, quadkey: 12310213122 #99

johnphilippowell opened this issue Mar 28, 2024 · 0 comments

Comments

@johnphilippowell
Copy link

The polygon shown below has a spike:

image

The WKT is: POLYGON ((72.4680086 34.9335963, 72.4679303 34.9336224, 72.4679948 34.9336009, 72.4680111 34.9336338, 72.4680354 34.9336257, 72.4680827 34.9337212, 72.4679986 34.9337492, 72.4679643 34.9336802, 72.4678032 34.9337339, 72.4677635 34.9336538, 72.4676553 34.9336899, 72.4676039 34.9335861, 72.4677778 34.9335281, 72.4677937 34.9335602, 72.4678891 34.9335284, 72.4678689 34.9334877, 72.4679425 34.9334631, 72.4680086 34.9335963))

While most systems regard this as invalid -- the notable exception being BigQuery -- it does look like an artefact of post processing, which could be removed with something like an internal angle > 359 degree check.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

No branches or pull requests

1 participant