Class: Numeric

Inherits:
Object
  • Object
show all
Defined in:
lib/gd2.rb

Instance Method Summary collapse

Instance Method Details

#degrees ⇒ Object Also known as: degree

Express an angle in degrees, e.g. 90.degrees. Angles are converted to radians.



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# File 'lib/gd2.rb', line 164

def degrees
  self * 2 * Math::PI / 360
end

#percent ⇒ Object

Express a percentage, e.g. 50.percent. Percentages are floating point values, e.g. 0.5.



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# File 'lib/gd2.rb', line 180

def percent
  self / 100.0
end

#to_degrees ⇒ Object

Convert an angle (in radians) to degrees.



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# File 'lib/gd2.rb', line 172

def to_degrees
  self * 360 / Math::PI / 2
end

#to_percent ⇒ Object

Convert a number to a percentage value, e.g. 0.5 to 50.0.



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# File 'lib/gd2.rb', line 187

def to_percent
  self * 100
end