Skip to main content
Question

CAD to GIS Spatial Join: One to One , is it possible?

  • June 6, 2023
  • 6 replies
  • 12 views

Hi,

I am trying to asses assets that are in CAD and not in GIS. Using the Spatial filter or the SpatialRelator i am getting results of one to many. I.e. the results are relating one candidate to many filters.

What transformer can i use that only spatial joins one candidate to only one filter?

 

Please help!

6 replies

geomancer
Evangelist
Forum|alt.badge.img+58
  • Evangelist
  • 932 replies
  • June 6, 2023

Hi, have you looked at the Matcher?


  • Author
  • 2 replies
  • June 6, 2023

Hi, have you looked at the Matcher?

Hi,

Thank you for taking to the time to reply.

When i use matcher then i get no results - all go to "UnMatched"


geomancer
Evangelist
Forum|alt.badge.img+58
  • Evangelist
  • 932 replies
  • June 6, 2023

Hi,

Thank you for taking to the time to reply.

When i use matcher then i get no results - all go to "UnMatched"

Just to be sure: did you remove the Bufferer?


  • Author
  • 2 replies
  • June 6, 2023

Hi,

Thank you for taking to the time to reply.

When i use matcher then i get no results - all go to "UnMatched"

Thanks - i tired that and still get no matches. The two sources are not identical. They are two systems drawn individually that i am trying to compare to see what is missing from one source. From what i understand Matcher is where they are identical so this transformer isn't working either.

 


geomancer
Evangelist
Forum|alt.badge.img+58
  • Evangelist
  • 932 replies
  • June 7, 2023

Hi,

Thank you for taking to the time to reply.

When i use matcher then i get no results - all go to "UnMatched"

The Matcher has a parameter" Vector Tolerance", which allows two geometries to have spatial variation and still be considered a match.

It would depend on the differences between the two sources whether this would work.


geomancer
Evangelist
Forum|alt.badge.img+58
  • Evangelist
  • 932 replies
  • June 7, 2023

I just noticed you are trying to compare lines. Maybe the LineOnLineRelator from FME Hub can help you out. Note that this transformer requires FME 2022.2.0.0 (Build 22765) or higher.