An axis in which the rows are numerically identified by a range of consecutive integers.
Retrieve the number of the first row
Create an IndexedAxis with the given number of rows. The optional start parameter indicates the number of the first row (default 0).
# File lib/ntable/axis.rb, line 190 def initialize(size_, start_=0) @size = size_ @start = start_ end
# File lib/ntable/axis.rb, line 197 def eql?(obj_) obj_.is_a?(IndexedAxis) && obj_.size.eql?(@size) && obj_.start.eql?(@start) end
See NTable::EmptyAxis#from_json_object
# File lib/ntable/axis.rb, line 239 def from_json_object(json_obj_) initialize(json_obj_['size'], json_obj_['start'].to_i) end
# File lib/ntable/axis.rb, line 203 def hash @size.hash ^ @start.hash end
# File lib/ntable/axis.rb, line 222 def index(label_) label_ >= @start && label_ < @size + @start ? label_ - @start : nil end
# File lib/ntable/axis.rb, line 208 def inspect "#<#{self.class}:0x#{object_id.to_s(16)} size=#{@size} start=#{@start}>" end
# File lib/ntable/axis.rb, line 227 def label(index_) index_ >= 0 && index_ < @size ? index_ + @start : nil end
See NTable::EmptyAxis#to_json_object
# File lib/ntable/axis.rb, line 233 def to_json_object(json_obj_) json_obj_['size'] = @size json_obj_['start'] = @start unless @start == 0 end