Module: Proj4::Tools

Extended by:
Tools
Included in:
Point, Projection, Tools
Defined in:
lib/ffi-proj4/tools.rb

Instance Method Summary collapse

Instance Method Details

#bool_result(r) ⇒ Object 



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# File 'lib/ffi-proj4/tools.rb', line 4

def bool_result(r)
  case r
    when 1
      true
    when 0
      false
    else
      raise RuntimeError.new("Unexpected boolean result: #{r}")
  end
end

#deg_to_rad(deg) ⇒ Object 



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# File 'lib/ffi-proj4/tools.rb', line 45

def deg_to_rad(deg)
  deg_to_rad!(
    !deg.is_a?(Numeric) && deg.respond_to?(:dup) ?
      deg.dup :
      deg
  )
end

#deg_to_rad!(deg) ⇒ Object 



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# File 'lib/ffi-proj4/tools.rb', line 34

def deg_to_rad!(deg)
  unless deg.nil?
    case deg
      when Proj4::Point, Proj4::ProjXY
        deg.to_rad!
      else
        deg * Proj4::DEG_TO_RAD
    end
  end
end

#rad_to_deg(rad) ⇒ Object 



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# File 'lib/ffi-proj4/tools.rb', line 26

def rad_to_deg(rad)
  rad_to_deg!(
    !rad.is_a?(Numeric) && rad.respond_to?(:dup) ?
      rad.dup :
      rad
  )
end

#rad_to_deg!(rad) ⇒ Object 



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# File 'lib/ffi-proj4/tools.rb', line 15

def rad_to_deg!(rad)
  unless rad.nil?
    case rad
      when Proj4::Point, Proj4::ProjXY
        rad.to_deg!
      else
        rad * Proj4::RAD_TO_DEG
    end
  end
end