Class: Pdfrb::Model::Type::Lab

Inherits:
Cos::Dictionary show all
Defined in:
lib/pdfrb/model/type/lab.rb

Overview

Lab color space dictionary (s8.6.3.4). CIE Lab*: [/Lab ].

Instance Attribute Summary

Attributes inherited from Object

#document, #gen, #oid, #value

Instance Method Summary collapse

Methods inherited from Cos::Dictionary

#[], #[]=, arlington_available?, arlington_default, arlington_key_to_symbol, arlington_loaded_for?, arlington_mark_loaded, arlington_object, arlington_one_type_to_ruby, arlington_required?, arlington_types_to_ruby, arlington_version, define_field, define_field_from_arlington, #delete, #each, each_field, #each_raw, #empty?, field, #initialize, #key?, #keys, lookup_type, own_fields, #pdf_type, register_type, type_map, #validate

Methods inherited from Object

#==, define_type, #deref, #indirect?, #initialize, #must_be_indirect?, #pdf_type, pdf_type

Constructor Details

This class inherits a constructor from Pdfrb::Model::Cos::Dictionary

Instance Method Details

#a_range ⇒ Object

/Range is [a_min a_max b_min b_max]; defaults per spec are [-100 100 -100 100].



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# File 'lib/pdfrb/model/type/lab.rb', line 17

def a_range
  range ? [range[0], range[1]] : [-100, 100]
end

#b_range ⇒ Object 



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# File 'lib/pdfrb/model/type/lab.rb', line 21

def b_range
  range ? [range[2], range[3]] : [-100, 100]
end

#black_point ⇒ Object 



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# File 'lib/pdfrb/model/type/lab.rb', line 10

def black_point; self[:BlackPoint]; end

#components ⇒ Object 



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# File 'lib/pdfrb/model/type/lab.rb', line 13

def components; 3; end

#range ⇒ Object 



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# File 'lib/pdfrb/model/type/lab.rb', line 11

def range; self[:Range]; end

#white_point ⇒ Object 



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# File 'lib/pdfrb/model/type/lab.rb', line 9

def white_point; self[:WhitePoint]; end