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Replace one point with the next in attribute table

E
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Hello everyone!

 

I am very new to the world of FME (and already very intrigued) and I am working on a use case that I can not quite figure out yet.

So I have points going into a certain line. I want to then export the points to AGOL, but not all at once. I want to make it look like one point is moving across the screen in a certain line. So basicly I need to know if there is a way to replace the point on the screen with the point that is next in the attribute table. For now I want to just try this out by running the FME Workspace over and over to see if the point moves the way I want it to, but when I finally have it figured out I want to add it to an FME Server to make it look like a live data stream.

I am sorry if this is a dumb question but I have been trying to figure it out for the past 3 days.

I already tried the StringReplacer but maybe I am doing it wrong.

I also have a counter in place

What to do?

 

Thank you so much in advance!

5 replies

redgeographics
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To be honest... I'm not sure FME is the right tool for the job.

If you do want to do it in FME, I would try using a FeatureWriter inside a custom transformer loop, making sure it writes each point separately. Add a Decelerator to the loop to slow things down and then there should be a way in AGOL to refresh the screen each time a feature is written (but I have zero experience with AGOL)

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  • ev2019
  • Author
  • May 23, 2019
redgeographics wrote:

To be honest... I'm not sure FME is the right tool for the job.

If you do want to do it in FME, I would try using a FeatureWriter inside a custom transformer loop, making sure it writes each point separately. Add a Decelerator to the loop to slow things down and then there should be a way in AGOL to refresh the screen each time a feature is written (but I have zero experience with AGOL)

@redgeographics

Thank you for the reaction! I will certainly try this out.

This is just for a demo of a tool I am working on. In the final version it is supposed to be working with live location data, so maybe I am now just putting more work on myself than is needed, haha! Anyway, thank you again :)

D
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Hi

I have created a live map into AGOL using python, and I would do the same here.

I am guessing that you will have only one point moving, then using a Python caller to loop through the points and using the update rest point for AGOL you can update the AGOL point layer with the new location by creating a JSON which you will need the FID of the point you are updating. you will need to add a sleep between each loop so can see it change in AGOL

 

https://developers.arcgis.com/rest/services-reference/update-features.htm

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  • ev2019
  • Author
  • May 23, 2019
davidrich wrote:

Hi

I have created a live map into AGOL using python, and I would do the same here.

I am guessing that you will have only one point moving, then using a Python caller to loop through the points and using the update rest point for AGOL you can update the AGOL point layer with the new location by creating a JSON which you will need the FID of the point you are updating. you will need to add a sleep between each loop so can see it change in AGOL

 

https://developers.arcgis.com/rest/services-reference/update-features.htm

Hello!

Thank you for answering as well! I am definitely going to try this option and see what happens!

 

virtualcitymatt
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redgeographics wrote:

To be honest... I'm not sure FME is the right tool for the job.

If you do want to do it in FME, I would try using a FeatureWriter inside a custom transformer loop, making sure it writes each point separately. Add a Decelerator to the loop to slow things down and then there should be a way in AGOL to refresh the screen each time a feature is written (but I have zero experience with AGOL)

Yeah this would be the go I think as well. The challenge is indeed making sure that each point is written when it gets to the writer and I think using this method is a a nice idea.

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