Applying Labels - CE 2017

KristianMortensen1 — Thu, 13 Jul 2017 09:44:08 GMT

Hello

I have seen that the new CE gives the possibility to use labels, as a way of communicating between different start shapes. I'm trying to write a script which lets me color the white squares according to the color of the shapes that is next to the it.

this is the rule so fare:

attr elevationNumber = 0
@range (0.0,1.0)
attr minElevation = 0.2
@range (0.0,1.0)
attr maxElevation = 0.6

@Startrule
lot -->
         case elevationNumber <= minElevation: color(0,0,0)
         case elevationNumber >= maxElevation: color(0,0,0)
         else: color(1,1,1)

My idear is to label the each shape and then make the rule check the color of the adjacent tiles.

Hope that somebody has experiences with using labels and can point me in the right direction.

Re: Applying Labels - CE 2017

CherylLau — Sat, 11 Dec 2021 06:22:32 GMT

Labels work with occlusion queries (inside, overlaps, touches). You can give something a label, and then in another shape, you can check if you occlude with something that has a given label.

label Operation

Occlusion Queries

What you could do is extrude your shapes and assign a label to the extruded shapes. For example, the black shapes would get the label "black". Then, you could use the touches() query with the label "black" to see if the shape touches another shape with the label "black".

attr elevationNumber = 0
@range (0.0,1.0)
attr minElevation = 0.2
@range (0.0,1.0)
attr maxElevation = 0.6
 
Lot -->
     case elevationNumber <= minElevation: color(0,0,0) Cube("black")
     case elevationNumber >= maxElevation: color(0,0,0) Cube("black")
     else: color(1,1,1) Cube("white")
     
Cube(colorLabel) -->
     extrude(10)
     label(colorLabel)
     TestNeighbor
     
TestNeighbor -->
     case touches(inter, "black"):
          s('1,20,'1)
     else:
          X.‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

topic Re: Applying Labels - CE 2017 in ArcGIS CityEngine Questions

Applying Labels - CE 2017

Re: Applying Labels - CE 2017