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Contents
# frozen_string_literal: true
module Gruff
class Store
# @private
class XYData < Struct.new(:label, :x_points, :y_points, :color)
def initialize(label, x_points, y_points, color)
y_points = Array(y_points)
x_points = x_points ? Array(x_points) : Array.new(y_points.length)
raise ArgumentError, 'x_points.length != y_points.length!' if x_points.length != y_points.length
super(label.to_s, x_points, y_points, color)
end
alias points y_points
def coordinates
x_points.zip(y_points)
end
def empty?
y_points.empty?
end
def columns
y_points.length
end
def min
y_points.compact.min
end
alias min_y min
def max
y_points.compact.max
end
alias max_y max
def min_x
x_points.compact.min
end
def max_x
x_points.compact.max
end
def normalize(minimum_x:, minimum_y:, spread_x:, spread_y:)
norm_x_points = x_points.map do |x|
x.nil? ? nil : (x.to_f - minimum_x.to_f) / spread_x
end
norm_y_points = y_points.map do |y|
y.nil? ? nil : (y.to_f - minimum_y.to_f) / spread_y
end
self.class.new(label, norm_x_points, norm_y_points, color)
end
end
end
end
Version data entries
14 entries across 14 versions & 1 rubygems