Question

Multiple Spatial Predicates in SpatialRelator in DE-9IM

  • 8 February 2019
  • 2 replies
  • 4 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

 

2 replies

ebygomm
Rank
Userlevel 1
Badge +10

I believe you need a space separated string

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

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

Thank you @egomm

Reply


Community Stats

28,661
Posts
109,324
Replies
36,528
Members
Terms & ConditionsCookie settings
A product of
Safe Software respectfully acknowledges that we live, learn and work on the traditional and unceded territories of the Kwantlen, Katzie, and Semiahmoo First Nations.