How do I get rid of the top floors ("penthouse style") of my buildings?

Question

Hi, I am looking for a way to adapt my rule file so that all of my buildings are flat on top, without any "penthouse-style"-like additions on top (see red circles in the image). I could do this manually by converting the models to shapes and delete all unwanted faces and vertices, but 1) too tedious, and 2) I need to end up with the the models, not the shapes. The cga I am using is a modified version of International City.cga (created on 6 Nov 2013 by Esri R&D Center Zurich). This is a part of it: # Setback Tower #####lowHeight = 50% : 0.3 else: 0.7 // switching between these two values creates visually appealing setbacks const offset = rand(0.05,0.1)SetbackTower --> case scope.sx < 20 || scope.sz < 20: LShape(highriseBuildingHeight*0.3) case scope.sx < 30: shapeO(scope.sz*0.1,0,scope.sz*0.1,0){ remainder: extrude(buildingHeight*HeightFactor*rand(0.9,1)) RecursiveSetbacks } shapeO(0,scope.sx*0.21,0,scope.sx*0.21){ remainder: extrude(buildingHeight*HeightFactor) RecursiveSetbacks } case p(0.5): shapeO(scope.sz*0.15,0,scope.sz*0.15,0){ remainder: extrude(buildingHeight*HeightFactor*rand(0.9,1)) RecursiveSetbacks } shapeO(0,scope.sx*0.21,0,scope.sx*0.21){ remainder: extrude(buildingHeight*HeightFactor) RecursiveSetbacks } else: shapeO(scope.sz*0.21,0,scope.sz*0.21,0){ remainder: extrude(buildingHeight*HeightFactor) RecursiveSetbacks }shapeO(0,scope.sx*0.1,0,scope.sx*0.1){ remainder: extrude(buildingHeight*HeightFactor*rand(0.9,1)) RecursiveSetbacks } RecursiveSetbacks --> case scope.sy > 10 && scope.sx > 10 && scope.sz > 10: split(y){ 'lowHeight : Stories comp(f){top: Roof("flat") } | ~1: RecursiveSetbacksCall(scope.sy) } else: s('1,5,'1) Stories comp(f){top: Roof("rooffloor") } RecursiveSetbacksCall(h) --> t(0,-h,0) comp(f){top: alignScopeToAxes(y) shapeO(scope.sz*offset,scope.sx*offset,scope.sz*offset,scope.sx*offset) { remainder: extrude(h) RecursiveSetbacks } } I am new to procedural modelling and ot sure if the bold part (split y operation) even is where these additional penthouse-floors are added. What do I need to change to get rid of these top floors on all my models? Can anyone help?

LR · Accepted Answer

Easiest solution would be to ctrl+f RoofFloor --> and redirect it to RoofPlane. Dummy the rest of the RoofFloor rule out or delete it. Basically, RoofFloor --> RoofPlane xyz --> 21% : offset(-scope.sz*rand(0.0,0.35),inside)‍‍‍ (...)‍‍‍‍‍