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Question

Multiple Spatial Predicates in SpatialRelator in DE-9IM

  • February 8, 2019
  • 2 replies
  • 45 views
T

Hi,

I have been able to run SpatialRelator with one DE-9IM string representing one matrix. In this simple case I used a text User Parameter. I have expressed the relation Within as the text T*F**F***

Now, I want to test whether Requestor is CoveredBy Supplier. This is a generalization of the relation Within and can be expressed in DE-9IM with 4 matrices, see https://en.wikipedia.org/wiki/DE-9IM#Spatial_predicates 

T*F**F***
*TF**F***
**FT*F***
**F*TF***

 

I don't understand what I should provide to SpatialRelator. A list of strings? a longer string?

 

Any idea?

 

Best regards

 

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2 replies

ebygomm
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  • ebygommInfluencer
  • Influencer
  • 3429 replies
  • February 8, 2019

I believe you need a space separated string

T*F**F*** *TF**F*** *TF**F*** **F*TF***
T
  • toni
  • Author
  • 2 replies
  • February 11, 2019

It seems it works. The string is: T*F**F*** *TF**F*** **FT*F*** **F*TF***

Thank you @egomm

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