Sha256: 40162259a5416b17c2789ce6c3f77fc55e2783eb05125a384aec6d0e3016050c
Contents?: true
Size: 1.21 KB
Versions: 6
Compression:
Stored size: 1.21 KB
Contents
# frozen_string_literal: true
##
# Original Author: David Stokar
#
# This class performs the y coordinates conversion for the bar class.
#
# There are three cases:
#
# 1. Bars all go from zero in positive direction
# 2. Bars all go from zero to negative direction
# 3. Bars either go from zero to positive or from zero to negative
#
# @private
class Gruff::BarConversion
attr_writer :mode
attr_writer :zero
attr_writer :graph_top
attr_writer :graph_height
attr_writer :minimum_value
attr_writer :spread
def get_left_y_right_y_scaled(data_point)
result = []
case @mode
when 1
# minimum value >= 0 ( only positive values )
result[0] = @graph_top + @graph_height * (1 - data_point) + 1
result[1] = @graph_top + @graph_height - 1
when 2
# only negative values
result[0] = @graph_top + 1
result[1] = @graph_top + @graph_height * (1 - data_point) - 1
when 3
# positive and negative values
val = data_point - @minimum_value / @spread
result[0] = @graph_top + @graph_height * (1 - (val - @zero)) + 1
result[1] = @graph_top + @graph_height * (1 - @zero) - 1
else
result[0] = 0.0
result[1] = 0.0
end
result
end
end
Version data entries
6 entries across 6 versions & 1 rubygems