OpenStudio::Vector when SWIG'ed into ruby is not enumerable

[rHorsey]

As a result, iteration through the vector must be done with for loops, and ruby-isms cannot be used. If enumerable was included, this would allow each, all?, map, select, <<, ect. to be used, which is the expected and default behavior for iteration over array-type data-structures in ruby. The current workaround is to cast the OS Vector to a string, and then eval it. This is obviously very sub-optimal.

[rHorsey]

One good piece of news - I tested the performance of casting vs looping, and (I assume) thanks to the staticly linked binaries, the speed of looping is really good now. I'll replace the random OS Vector with one from a sql file and confirm, but it looks like this is just a interface issue.

require 'openstudio'
require 'benchmark'
# Make an array of random 1min ts data
os_vec = OpenStudio::Vector.new(525600)
values = Array.new(525600) { rand() * 5000 }
for i in 1..525599
  os_vec[i] = values[i]
end
Benchmark.bm(1) do |x|
  x.report("cast:") {
    # cast the vector to a string and then cast it to an array of strings
    quick_proc = os_vec.to_s.split(',')
    # the first and last have some cleanup items because of the Vector method
    quick_proc[0] = quick_proc[0].gsub(/^.*\(/, '')
    quick_proc[-1] = quick_proc[-1].gsub(")", '')
    # convert each of the values to a float
    quick_proc.map! { |val| val.to_f }
  }
  x.report("loop:") {
    # loop through each value to retrieve it
    slow_proc = []
    for i in 1..os_vec.length - 1
      slow_proc << os_vec[i]
    end
  }
end

with the result

        user     system      total        real
cast:  0.350000   0.020000   0.370000 (  0.383714)
loop:  0.070000   0.000000   0.070000 (  0.074864)