a ruby method to detect x-y coords uniquness of points in VTK file

all_coords_vtk_uniq.rb

# Detects whether the x/y coordinates of points in VTK are all different.
#
# @params {string} vtk path to VTK file
# @return {boolean}
def all_coords_uniq?(vtk)
  File.open(vtk, "r") do |f|
    points_count = 0
    while line = f.gets.chomp
      if line =~ /^POINTS/
        points_count = line.split[1].to_i
        break
      end
    end

    points = points_count.times.map do
      f.gets.split[0..1]
    end

    return points.size == points.uniq.size
  end
end