motion-altimeter

Block-based RubyMotion gem for interacting with the CMAltimeter class.

Installation

Add this line to your application's Gemfile:

gem 'motion-altimeter'

And then execute:

$ bundle

Or install it yourself as:

$ gem install motion-altimeter

Usage

It's fairly easy to get altitude data using motion-altimeter:

# Create your `Motion::Altimeter` object
my_altimeter = Motion::Altimeter.new

# Start getting updates
if CMAltimeter.isRelativeAltitudeAvailable
  my_altimeter.start do |altitude|
    # Do something with the altitude data.
    #
    # altitude is a hash with the following properties:
    # {
    #    relative_altitude: 0.0,
    #    pressure: 0.0,
    #    error: nil
    # }
    # See Apple docs for CMAltitudeData to see what each of these is
  end
else
  puts "This device doesn't have a barometer to support relative altitudes."
end

# Somewhere else: stop getting updates
my_altimeter.stop

If the device doesn't support CMAltimeter, it will not start. You should check before starting updates with a check to CMAltimeter.isRelativeAltitudeAvailable.

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request