Spatial join of polygons

Hi Sani,

 

 

Do you need to get all the inputs? It seems that some attributes have two values, and if you will run the workbench using SpatialRelator, the transformer will replace the previous value and display the second one. Thus, you need to get more number of outputs than inputs (as more in number as there are overlapping values). For this instance, I guess LineOnAreaOverlay with List Name as parameters would work. Then you can use ListExploder,using the same List Elements. (:

 

 

Regards. 

Hello, 

 

Thank u for the replies!

 

As far as I'm getting through is:

 

 

 

 

An example above:

 

1) SpatialRelator (Tests to Perform = OVERLAP) Works well for Admin A, B and D ( as admin area=Postal area) shown in yellow.

 

2) SpatialRelator (Tests to Perform = WITHIN) Works well for Postal 41104 and 41107 that do not touch the boundary lines, shown in lavender color.

 

 

Postal in white are the ones which aren't getting spatially joined.

 

(spatial joining is being tried of the admin area polygon with the postal area polygons.)

 

 

Regards,

 

Sani.

 

 

I guess the administrative boundary parts of Postal area boundaries do not exactly match with the Admin boundaries (red lines in your image).

 

How about comparing inside points of Postal and Admin areas?

 

 

Try use a combo OVERLAPS,CROSSES and TOUCHES.

 

 

If the passcriteria is of relevance here, u can then test the attribute _relationships_PASS{}

 

Or check DE9IM, if you are brave.

 

 

Unwanted touches u can eliminate by exposing and testing cardinality btw.

 

 

If criteria is not relevant for merging of data, i suggest using INTERSECT.

 

 

 

How about just using a overlayer or intersector.

 

Then a spatialrelator using intersect comparing these intersected/overlayed objects with the original objects.

 

Testing on the occurence of postalcode and admin area as well as overlaps>0 and then using result to reaquire original objects (using ie a featuremerger).

 

 

Gio