Summarize object area with a Hash in Ruby
- by Arto Uusikangas
require 'sketchup'
entities = Sketchup.active_model.entities
summa = Hash.new
for face in entities
next unless face.kind_of? Sketchup::Face
if (face.material)
summa[face.material.display_name] += face.area
end
end
Im trying to get the structure in the array as such:
summa { "Bricks" = 500, "Planks" = 4000 }
Making a ruby script for Google Sketchup btw
But if I run this code i only get
Error: #+' for nil:NilClass>
C:\Program Files (x86)\Google\Google SketchUp 7\Plugins\test.rb:17
C:\Program Files (x86)\Google\Google SketchUp 7\Plugins\test.rb:14:ineach'
C:\Program Files (x86)\Google\Google SketchUp 7\Plugins\test.rb:14
C:\Program Files (x86)\Google\Google SketchUp 7\Plugins\test.rb:8:in `call'
As im used to using PHP and just doing $array['myownassoc'] += bignumber;
But i guess this isnt the right approach when using Ruby?
So any help in how i need to go would be nice.
