Can somebody help me in writing a rule which can tell how many edges does a plot share with the street and apply different rules according to it.
Example: If it is a corner plot then it shares 2 of its edges with the street. Hence a different rule applies to it than to a site which shares only one edge. For now it is a user defined value :
@Range("CLASS_A","CLASS_B", "CLASS_C")
attr Type = "CLASS_A"
Lot -->
case Type == "CLASS_A" : LotA #shares one edge, apply rule LotA#
case Type == "CLASS_B" : LotB #shares two edges, apply rule LotB#
case Type == "CLASS_C" : LotC #shares three edges, apply rule LotC#
else : NIL
I want to write a rule that automatically does that. I can get the number of edges from geometry.egdes(correct me if I am wrong) but I dont know exactly how should I write the rule.
Thanks 
Accepted Solutions
Hey! Thanks so much it works I thought it would be an easy one and I was missing some small logic in my mind but I don't fully understand the code. I understood how you are recursively checking each edge of the lot but beyond that I don't understand how are you checking it with the street edges. Can you please explain, especially nStreetEdges.
Thanks
Hi,
I know this is a tricky one .. and not so intuitive ..
nStreetEdges ("number of street edges") is just a rule parameter I made up that starts with zero, and whenever the current edge in the recursion has a streetWidth attribute that is > 0, I add 1 to this rule parameter.
Note the shape's streetWidth() attributes in the Object Attributes tab (Inspector).
This means after the recursion is done, if nStreetEdges is >= 2, we know this is a corner lot.
Okay?
Matthias Buehler
Head of 3D Technologies
twitter: @MattB3D
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Garsdale Design Limited
Yeah! Understood Thanks. I could easily extend it for sites with more than two edges common with the street.
