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I have a file with points and as an attribute I have the measurement with respect to the LRS. How to view the points on the map?


maica
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I have a file with points and as an attribute I have the measurement with respect to the LRS. How to view the points on the map?

4 replies

daveatsafe
Safer
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  • Safer
  • July 31, 2023

Hi @maica​,

The following FME webinar covers this topic:

https://www.safe.com/webinars/linear-referencing-lrs-how-fme-measures-up/

The process is to merge the line geometry on each point with a FeatureMerger, then snip it to a point using the Snipper transformer, based on the measurement value.


maica
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  • August 1, 2023
daveatsafe wrote:

Hi @maica​,

The following FME webinar covers this topic:

https://www.safe.com/webinars/linear-referencing-lrs-how-fme-measures-up/

The process is to merge the line geometry on each point with a FeatureMerger, then snip it to a point using the Snipper transformer, based on the measurement value.

Thanks a lot...

but in a Snipper transformer, in the starting Location and Ending Location, must I insert the same measure?


daveatsafe
Safer
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  • Safer
  • August 1, 2023
maica wrote:

Thanks a lot...

but in a Snipper transformer, in the starting Location and Ending Location, must I insert the same measure?

Yes, if you use the same measure for both the Starting Location and Ending Location, the Snipper will produce a point at that location, instead of a line.


maica
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  • August 2, 2023
maica wrote:

Thanks a lot...

but in a Snipper transformer, in the starting Location and Ending Location, must I insert the same measure?

Ok, it's work perfectly! :-)

 

If, instead, I have a network and linear events and I want find measure (from and to) for each event with respect to the network, what is the better solution?

I try to use the LineonLine Overlayer transformer, but the result is not what I expected.

Maybe are the self-intersections the problem?

 

If I find start and end vertexs and, then, I use NieghborFinder transformer, it seems to work fine. But I don't know if it is the better solution...

 

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