Module: Tracksperanto::ZipTuples

Included in:
Import::Base, Import::ShakeScript::Traxtractor
Defined in:
lib/tracksperanto/zip_tuples.rb

Overview

Implements the zip_curve_tuples method

Instance Method Summary collapse

Instance Method Details

#zip_curve_tuples(*curves) ⇒ Object

Zip arrays of “value at” tuples into an array of “values at” tuples. The first value of each tuple will be the frame number and keyframes which are not present in all arrays will be discarded. For example:

zip_curve_tuples( [[0, 12], [1, 23]], [[1, 12]]) #=> [[1, 23, 12]]



9
10
11
12
13
14
15
16
17
18
19
 
# File 'lib/tracksperanto/zip_tuples.rb', line 9

def zip_curve_tuples(*curves)
  tuples = []
  curves.each do | curve |
    curve.each do | keyframe |
      frame, value = keyframe
      tuples[frame] ? tuples[frame].push(value) : (tuples[frame] = [frame, value])
    end
  end

  tuples.compact.reject{|e| e.length < (curves.length + 1) }
end