Hi I have a road segment line/polyline dataset that I need to split for each segment object into 10m intervals and create a new record. What's the best way to go about this?
Thanks in advance
Tim
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.
+24- Influencer
- 315 replies
Hello @Tim Warfe try the chopper transformer
http://docs.safe.com/fme/html/FME_Desktop_Documentation/FME_Transformers/Transformers/chopper.htm
+9- Contributor
- 10 replies
Thank you @deanhowell , it's not chopping the segments into 10m slices, maybe I'm doing the settings wrong or my input data isn't quite right??
+24- Influencer
- 315 replies
Do you have a sample of the data you can share and the workbench and I would be happy to have a look to see what might be going on?
- 8392 replies
Thank you @deanhowell , it's not chopping the segments into 10m slices, maybe I'm doing the settings wrong or my input data isn't quite right??
I believe the length value in the Chopper is in ground units, meaning that if the lines aren't already projected to a coordinate system using meters, the result is probably not going to be correct.
Thank you @deanhowell , it's not chopping the segments into 10m slices, maybe I'm doing the settings wrong or my input data isn't quite right??
@Tim Warfe Chopper's Mode parameter sets whether it's chopping by vertex count or length. But as @david_r mentions you may need to reproject your data - CommonLocalReprojector eliminates the need to choose a coordinate system. Don't forget to reproject back to the original one - Reprojector.
+9- Contributor
- 10 replies
Thank you so much for your replies so far. @deanhowell @Mark Stoakes @david_r I can't seem to get the result I was after. I've added the FMW and a subset of the data source I'm working with. Can someone please take a look? thnaks in advance. :)
+24- Influencer
- 315 replies
Hello @Tim Warfe , To be honest I am not sure why the chopper is not working and probably worth SAFE looking into that further. I did find a custom transformer caller "Distance Chopper" and that has done the trick perfectly. I added a line combiner into the mix so the lines were combined based on group and then used the distance chopper.
I have attached the modified workbench for you to review. I hope this helps.
Regards
Dean
- 8392 replies
Hello @Tim Warfe , To be honest I am not sure why the chopper is not working and probably worth SAFE looking into that further. I did find a custom transformer caller "Distance Chopper" and that has done the trick perfectly. I added a line combiner into the mix so the lines were combined based on group and then used the distance chopper.
I have attached the modified workbench for you to review. I hope this helps.
Regards
Dean
If I'm not mistaken, the Chopper will split up the lines at the closest vertex to the selected distance. Meaning that if you have a line segment with e.g. 1000 meters between the vertices, and tell the Chopper to split every 10 meters, the result won't be what you may expect. I haven't looked at the data, but that could well be the case here.
As you mention, the DistanceChopper resolves this issue.
+9- Contributor
- 10 replies
A big thank you to @deanhowell @david_r and @Mark Stoakes for your support on this issue. I seem to have the result I was after now. Happy camper here!! :)