I want to calculate how many buildings there are?
Hi everyone,
I want to see automatically how many buildings are built in the parcel.I need to see this value as a number to use it in other operations. (reports,gfa,far calculations etc.) How can I do that?
This is my test rule and test result. In this case rule generated 5 building. Thank you...
@Hidden
attr length = 30
attr width = 30
Generate-->
split(x) { 25 : Garden | length : split(z) { 25: Garden | width:Building}*}*
Building-->
case geometry.area < length*width -5 : Garden
else :
extrude(30)
You could simply report it but that's not really usable for aggregated internal calculations unless you do it with Python.
Here's one that calculates number of dwellings per hectare.
PS: I colour the bottom splits just for a visual check. Not that you can see it from this angle.
version "2019.1"
@Hidden
attr length = 30
attr width = 30
// Added this --------------------------------------------------------------
attr buildingNumber = 0
attr parcelArea = geometry.area
// Added this --------------------------------------------------------------
Generate-->
split(x) { 25 : Garden | length : split(z) { 25: Garden | width:Building}*}*
Building-->
case geometry.area < length*width -5 : Garden
else :
extrude(30)
// Added this --------------------------------------------------------------
comp(f) { bottom : label("countBuilding") countBuildings | all : NIL. }
countBuildings -->
color(1,0,0)
set(buildingNumber,contextCount(intra, "countBuilding"))
print("Dwelling Density Per Ha " + buildingNumber/(parcelArea/10000))
print("Building Count " + buildingNumber)
// Added this --------------------------------------------------------------