Hi everyone Im fairly new to City Engine and just understanding the basic CGA grammar. Im trying to calculate the GFA of 3D buildings (acquired from here https://www1.nyc.gov/site/doitt/initiatives/3d-building.page) using the Tutorial 11 Reporting but modifying it to my 3D buildings. This is what I have so far but not sure if its in the proper format. My question is how can I modify it so that it intakes already built 3D objects? Does this methodology account for setbacks in buildings? Any help would be appreciated
/**
* File: GFAestimator.cga
* Created: 14 Dec 2021 17:31:24 GMT
* Author: irepo
*/
version "2021.1"
# ---------------------------------------
# Attributes
# ---------------------------------------
@Group("Viz",4)
@Enum("massOnly", "floors", "massAndFloors")
attr vizMode = "massAndFloors"
# ---------------------------------------
# Start with the lot
# ---------------------------------------
@Hidden
attr plotArea = 0 # used to calc FAR
# -----------------------
# Mass / Floors
# -----------------------
Mass -->
MassViz
split(y){ floorHeight: Floor }*
Floor --> comp(f){ bottom: reverseNormals FloorBottom }
FloorBottom -->
report("GFA",geometry.area)
report("FAR",geometry.area/plotArea)
color("#4444ff")
FloorViz
# -----------------------
# Leaf Shapes
# -----------------------
MassViz -->
case vizMode == "massOnly" :
Mass.
case vizMode == "massAndFloors" :
set(material.opacity,0.2) Mass.
else:
NIL
FloorViz -->
case vizMode == "massOnly" :
NIL
else:
FloorViz.
OpenSpace --> color("#777777")
Ground --> color("#777777")
