I wanted to generate polygon by grouping points within 30 meters together and form polygon from it.
I need help as urgent as possible.
Thanks
Question
Grouping of points within 30 meters and generate polygon.
This post is closed to further activity.
It may be an old question, an answered question, an implemented idea, or a notification-only post.
Please check post dates before relying on any information in a question or answer.
For follow-up or related questions, please post a new question or idea.
If there is a genuine update to be made, please contact us and request that the post is reopened.
It may be an old question, an answered question, an implemented idea, or a notification-only post.
Please check post dates before relying on any information in a question or answer.
For follow-up or related questions, please post a new question or idea.
If there is a genuine update to be made, please contact us and request that the post is reopened.
Lots of ways to do it (as usual with FME), here's one suggestion:
- Read the CSV and specify the lon-column as the x attribute, the lat-column as the y attribute in the CSV reader
- Reproject the points to a meter-based coordinate system, such as EPSG:91009 (web mercator) using the CsmapReprojector
- Use the NeigborhoodAggregator with a 30x30 meter box, specifying a minimum of 3 points.
- HullReplacer to convert the point aggregate to a polygon
You might also want to use a GeometryValidator and/or GeometryFilter to filter out any polygons that are actually lines.
Sample result:
And if you're wondering why it's a bit quiet on the forum this week: https://fmeuc.com/ :-)
Hi @f1, for example, if the distances between point A and B, B and C were less than 30m but the distance between A and C was greater than 30m, how should you group them?
Hi @f1, for example, if the distances between point A and B, B and C were less than 30m but the distance between A and C was greater than 30m, how should you group them?
Hi @takashi this is part of what I ne
Hi @f1, for example, if the distances between point A and B, B and C were less than 30m but the distance between A and C was greater than 30m, how should you group them?
Login to the community
No account yet? Create an account
An FME Account is required to contribute
LoginEnter your E-mail address. We'll send you an e-mail with instructions to reset your password.