Class: Mercator::Datum

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

Overview

Base datum class. Do not use this class in calculations, instead use one of the subclasses defined below.

Direct Known Subclasses

GRS80, WGS84

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#inverse_flattening ⇒ Object

Returns the value of attribute inverse_flattening.



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# File 'lib/mercator/datum.rb', line 9

def inverse_flattening
  @inverse_flattening
end

#semi_major_axis ⇒ Object

Returns the value of attribute semi_major_axis.



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# File 'lib/mercator/datum.rb', line 7

def semi_major_axis
  @semi_major_axis
end

#semi_minor_axis ⇒ Object

Returns the value of attribute semi_minor_axis.



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# File 'lib/mercator/datum.rb', line 8

def semi_minor_axis
  @semi_minor_axis
end

Instance Method Details

#flattening ⇒ Object 



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# File 'lib/mercator/datum.rb', line 11

def flattening
  1 / self.inverse_flattening
end