class RadianDegreeConverter

This class converts radians to decimal degrees and decimal degrees to radians. It will validate the method input to make sure it is float compatible and return an error message if the input cannot be converted to a float.

Author: Kevin LaFave
License: MIT

Public Instance Methods

convert_degrees_to_radians(input) click to toggle source

This method converts decimal degrees to its radians equivalent.

input : The decimal degree value that needs to be converted to radians.

# File lib/radian_degree_converter.rb, line 39
def convert_degrees_to_radians input
        if is_numeric? input
                @result = input.to_f * 0.0174532925
        else
                error_message
                @result = nil
        end
end

convert_radians_to_degrees(input) click to toggle source

This method converts radians to its decimal degrees equivalent.

input : The radian value that needs to be converted to decimal degrees.

# File lib/radian_degree_converter.rb, line 28
def convert_radians_to_degrees input
        if is_numeric? input
                @result = input.to_f * 57.2957795
        else
                error_message
                @result = nil
        end
end

error_message() click to toggle source

This method returns an error message when the convert method input was not float compatible.

# File lib/radian_degree_converter.rb, line 22
def error_message
        puts "Invalid input. Must enter an integer or decimal number"
end

is_numeric?(input) click to toggle source

This method validates the input to see if it is float compatible.

input : The value that needs to be validated.

# File lib/radian_degree_converter.rb, line 11
def is_numeric? input
        begin
                Float(input)
        rescue
                false
        else
                true
        end
end