def test_modualtion_should_be_25_percent_of_amplitude(self):
laser_control = AudioModulationLaserControl(self.sample_rate,
self.on_frequency,
self.off_frequency,
self.offset)
laser_control.set_laser_on()
sample_data_chunk = numpy.array([(1.0, 1.0)])
po1 = math.cos(0.0 / 4.0 * 2.0 *
math.pi) * (self._MODULATION_AMPLITUDE_RATIO + 0.75)
po2 = math.cos(1.0 / 4.0 * 2.0 *
math.pi) * (self._MODULATION_AMPLITUDE_RATIO + 0.75)
po3 = math.cos(2.0 / 4.0 * 2.0 *
math.pi) * (self._MODULATION_AMPLITUDE_RATIO + 0.75)
po4 = math.cos(3.0 / 4.0 * 2.0 *
math.pi) * (self._MODULATION_AMPLITUDE_RATIO + 0.75)
po5 = math.cos(0.0 / 4.0 * 2.0 *
math.pi) * (self._MODULATION_AMPLITUDE_RATIO + 0.75)
po6 = math.cos(1.0 / 4.0 * 2.0 *
math.pi) * (self._MODULATION_AMPLITUDE_RATIO + 0.75)
po7 = math.cos(2.0 / 4.0 * 2.0 *
math.pi) * (self._MODULATION_AMPLITUDE_RATIO + 0.75)
po8 = math.cos(3.0 / 4.0 * 2.0 *
math.pi) * (self._MODULATION_AMPLITUDE_RATIO + 0.75)
expected_data = numpy.array([[po1, po1], [po2, po2], [po3, po3],
[po4, po4], [po5, po5], [po6, po6],
[po7, po7], [po8, po8]])
actual_data = laser_control.modulate(sample_data_chunk).next()
self.assertNumpyArrayEquals(expected_data, actual_data)
def test_when_laser_off_modulate_it_at_off_frequency(self):
laser_control = AudioModulationLaserControl(self.sample_rate,
self.on_frequency,
self.off_frequency,
self.offset)
laser_control.set_laser_off()
sample_data_chunk = numpy.array([(0, 0)])
po1 = math.cos(
0.0 / 8.0 * 2.0 * math.pi) * self._MODULATION_AMPLITUDE_RATIO
po2 = math.cos(
1.0 / 8.0 * 2.0 * math.pi) * self._MODULATION_AMPLITUDE_RATIO
po3 = math.cos(
2.0 / 8.0 * 2.0 * math.pi) * self._MODULATION_AMPLITUDE_RATIO
po4 = math.cos(
3.0 / 8.0 * 2.0 * math.pi) * self._MODULATION_AMPLITUDE_RATIO
po5 = math.cos(
4.0 / 8.0 * 2.0 * math.pi) * self._MODULATION_AMPLITUDE_RATIO
po6 = math.cos(
5.0 / 8.0 * 2.0 * math.pi) * self._MODULATION_AMPLITUDE_RATIO
po7 = math.cos(
6.0 / 8.0 * 2.0 * math.pi) * self._MODULATION_AMPLITUDE_RATIO
po8 = math.cos(
7.0 / 8.0 * 2.0 * math.pi) * self._MODULATION_AMPLITUDE_RATIO
expected_data = numpy.array([[po1, po1], [po2, po2], [po3, po3],
[po4, po4], [po5, po5], [po6, po6],
[po7, po7], [po8, po8]])
actual_data = laser_control.modulate(sample_data_chunk).next()
self.assertNumpyArrayEquals(expected_data, actual_data)
def test_off_frequency_must_be_an_even_divisor_of_sample_rate(self):
sample_rate = 1000
on_frequency = 500
bad_off_frequency = 99
with self.assertRaises(Exception):
AudioModulationLaserControl(sample_rate, on_frequency,
bad_off_frequency, self.offset)
def test_modualtion_should_be_25_percent_of_amplitude(self):
laser_control = AudioModulationLaserControl(self.sample_rate,self.on_frequency,self.off_frequency)
laser_control.set_laser_on()
sample_data_chunk = numpy.array([(1.0,1.0)])
po1 = math.cos(0.0 / 4.0 * 2.0 * math.pi ) * ( self._MODULATION_AMPLITUDE_RATIO + 0.75 )
po2 = math.cos(1.0 / 4.0 * 2.0 * math.pi ) * ( self._MODULATION_AMPLITUDE_RATIO + 0.75 )
po3 = math.cos(2.0 / 4.0 * 2.0 * math.pi ) * ( self._MODULATION_AMPLITUDE_RATIO + 0.75 )
po4 = math.cos(3.0 / 4.0 * 2.0 * math.pi ) * ( self._MODULATION_AMPLITUDE_RATIO + 0.75 )
po5 = math.cos(0.0 / 4.0 * 2.0 * math.pi ) * ( self._MODULATION_AMPLITUDE_RATIO + 0.75 )
po6 = math.cos(1.0 / 4.0 * 2.0 * math.pi ) * ( self._MODULATION_AMPLITUDE_RATIO + 0.75 )
po7 = math.cos(2.0 / 4.0 * 2.0 * math.pi ) * ( self._MODULATION_AMPLITUDE_RATIO + 0.75 )
po8 = math.cos(3.0 / 4.0 * 2.0 * math.pi ) * ( self._MODULATION_AMPLITUDE_RATIO + 0.75 )
expected_data = numpy.array([[po1,po1],[po2,po2],[po3,po3],[po4,po4],[po5,po5],[po6,po6],[po7,po7],[po8,po8]])
actual_data = laser_control.modulate(sample_data_chunk).next()
self.assertNumpyArrayEquals(expected_data,actual_data)
def test_when_laser_on_modulate_it_at_on_frequency(self):
laser_control = AudioModulationLaserControl(self.sample_rate,self.on_frequency,self.off_frequency)
laser_control.set_laser_on()
sample_data_chunk = numpy.array([(0,0)])
po1 = math.cos(0.0 / 4.0 * 2.0 * math.pi ) * self._MODULATION_AMPLITUDE_RATIO
po2 = math.cos(1.0 / 4.0 * 2.0 * math.pi ) * self._MODULATION_AMPLITUDE_RATIO
po3 = math.cos(2.0 / 4.0 * 2.0 * math.pi ) * self._MODULATION_AMPLITUDE_RATIO
po4 = math.cos(3.0 / 4.0 * 2.0 * math.pi ) * self._MODULATION_AMPLITUDE_RATIO
po5 = math.cos(0.0 / 4.0 * 2.0 * math.pi ) * self._MODULATION_AMPLITUDE_RATIO
po6 = math.cos(1.0 / 4.0 * 2.0 * math.pi ) * self._MODULATION_AMPLITUDE_RATIO
po7 = math.cos(2.0 / 4.0 * 2.0 * math.pi ) * self._MODULATION_AMPLITUDE_RATIO
po8 = math.cos(3.0 / 4.0 * 2.0 * math.pi ) * self._MODULATION_AMPLITUDE_RATIO
expected_data = numpy.array([[po1,po1],[po2,po2],[po3,po3],[po4,po4],[po5,po5],[po6,po6],[po7,po7],[po8,po8]])
actual_data = laser_control.modulate(sample_data_chunk).next()
self.assertNumpyArrayEquals(expected_data,actual_data)
def __init__(self, configuration_manager, printer):
logging.info("Calibartion API Startup")
self._configuration_manager = configuration_manager
self._printer = printer
self._configuration = self._configuration_manager.load(self._printer)
self._point_generator = SinglePointGenerator()
self._blink_generator = BlinkGenerator()
self._alignment_generator = CalibrationLineGenerator()
self._scale_generator = SquareGenerator(speed=1, radius=1)
self._test_patterns = {
'Hilbert Space Filling Curve': HilbertGenerator(),
'Square': SquareGenerator(),
'Circle': CircleGenerator(),
'Spiral': SpiralGenerator(),
'Memory Hourglass': MemoryHourglassGenerator()
}
self._current_generator = self._point_generator
self._laser_control = AudioModulationLaserControl(
self._configuration.audio.output.sample_rate,
self._configuration.audio.output.modulation_on_frequency,
self._configuration.audio.output.modulation_off_frequency,
self._configuration.options.laser_offset)
transformer = TuningTransformer(
scale=self._configuration.calibration.max_deflection)
self._path_to_audio = PathToAudio(
self._laser_control.actual_samples_per_second, transformer,
self._configuration.options.laser_thickness_mm)
self._audio_writer = None
self._controller = None
logging.debug("Setting up audiowriter")
self._audio_writer = AudioWriter(
self._configuration.audio.output.sample_rate,
self._configuration.audio.output.bit_depth,
)
self._current_generator = self._point_generator
self._controller = Controller(
self._laser_control,
self._path_to_audio,
self._audio_writer,
self._current_generator,
)
self.make_pattern_fit()
self._controller.start()
def test_when_laser_off_modulate_it_at_off_frequency_with_offset(self):
offset = [0.1,0.1]
laser_control = AudioModulationLaserControl(self.sample_rate,self.on_frequency,self.off_frequency, offset)
laser_control.set_laser_off()
sample_data_chunk = numpy.array([(0,0)])
po1 = math.cos(0.0 / 8.0 * 2.0 * math.pi ) * (self._MODULATION_AMPLITUDE_RATIO + ( 0.1 * self._SOURCE_AMPLITUDE_RATIO))
po2 = math.cos(1.0 / 8.0 * 2.0 * math.pi ) * (self._MODULATION_AMPLITUDE_RATIO + ( 0.1 * self._SOURCE_AMPLITUDE_RATIO))
po3 = math.cos(2.0 / 8.0 * 2.0 * math.pi ) * (self._MODULATION_AMPLITUDE_RATIO + ( 0.1 * self._SOURCE_AMPLITUDE_RATIO))
po4 = math.cos(3.0 / 8.0 * 2.0 * math.pi ) * (self._MODULATION_AMPLITUDE_RATIO + ( 0.1 * self._SOURCE_AMPLITUDE_RATIO))
po5 = math.cos(4.0 / 8.0 * 2.0 * math.pi ) * (self._MODULATION_AMPLITUDE_RATIO + ( 0.1 * self._SOURCE_AMPLITUDE_RATIO))
po6 = math.cos(5.0 / 8.0 * 2.0 * math.pi ) * (self._MODULATION_AMPLITUDE_RATIO + ( 0.1 * self._SOURCE_AMPLITUDE_RATIO))
po7 = math.cos(6.0 / 8.0 * 2.0 * math.pi ) * (self._MODULATION_AMPLITUDE_RATIO + ( 0.1 * self._SOURCE_AMPLITUDE_RATIO))
po8 = math.cos(7.0 / 8.0 * 2.0 * math.pi ) * (self._MODULATION_AMPLITUDE_RATIO + ( 0.1 * self._SOURCE_AMPLITUDE_RATIO))
expected_data = numpy.array([[po1,po1],[po2,po2],[po3,po3],[po4,po4],[po5,po5],[po6,po6],[po7,po7],[po8,po8]])
actual_data = laser_control.modulate(sample_data_chunk).next()
self.assertNumpyArrayEquals(expected_data,actual_data)
def test_number_of_sample_generated_for_on_and_off_should_be_consistant(
self):
sample_rate = 44100
on_frequency = 11025
off_frequency = 7350
sample_data_chunk = numpy.array([(0, 0)])
laser_control = AudioModulationLaserControl(sample_rate, on_frequency,
off_frequency, self.offset)
laser_control.set_laser_on()
laser_on = len(list(laser_control.modulate(sample_data_chunk)))
laser_control.set_laser_off()
laser_off = len(list(laser_control.modulate(sample_data_chunk)))
self.assertEqual(laser_on, laser_off)
def test_number_of_sample_generated_for_on_and_off_should_be_consistant(self):
sample_rate = 44100
on_frequency = 11025
off_frequency = 7350
sample_data_chunk = numpy.array([(0,0)])
laser_control = AudioModulationLaserControl(sample_rate,on_frequency,off_frequency)
laser_control.set_laser_on()
laser_on = len(list(laser_control.modulate(sample_data_chunk)))
laser_control.set_laser_off()
laser_off = len(list(laser_control.modulate(sample_data_chunk)))
self.assertEqual(laser_on,laser_off)
def print_layers(self, layer_generator, dry_run=False):
if self._configuration.serial.on:
self._commander = SerialCommander(self._configuration.serial.port)
else:
self._commander = NullCommander()
laser_control = AudioModulationLaserControl(
self._configuration.audio.output.sample_rate,
self._configuration.audio.output.modulation_on_frequency,
self._configuration.audio.output.modulation_off_frequency,
self._configuration.options.laser_offset)
transformer = HomogenousTransformer(
self._configuration.calibration.max_deflection,
self._configuration.calibration.height,
self._configuration.calibration.lower_points,
self._configuration.calibration.upper_points,
)
path_to_audio = PathToAudio(
laser_control.actual_samples_per_second, transformer,
self._configuration.options.laser_thickness_mm)
if dry_run:
audio_writer = None
self.zaxis = None
zaxis_control = None
abort_on_error = False
else:
audio_writer = AudioWriter(
self._configuration.audio.output.sample_rate,
self._configuration.audio.output.bit_depth,
)
self.zaxis = self._get_zaxis()
abort_on_error = True
self._controller = Controller(
laser_control,
path_to_audio,
audio_writer,
layer_generator,
zaxis=self.zaxis,
status_call_back=self._status_call_back,
max_lead_distance=self._configuration.dripper.max_lead_distance_mm,
abort_on_error=abort_on_error)
self._controller.start()
class CalibrationAPI(object):
def __init__(self, configuration_manager, printer):
logging.info("Calibartion API Startup")
self._configuration_manager = configuration_manager
self._printer = printer
self._configuration = self._configuration_manager.load(self._printer)
self._point_generator = SinglePointGenerator()
self._blink_generator = BlinkGenerator()
self._alignment_generator = CalibrationLineGenerator()
self._scale_generator = SquareGenerator(speed=1, radius=1)
self._test_patterns = {
'Hilbert Space Filling Curve': HilbertGenerator(),
'Square': SquareGenerator(),
'Circle': CircleGenerator(),
'Spiral': SpiralGenerator(),
'Memory Hourglass': MemoryHourglassGenerator()
}
self._current_generator = self._point_generator
self._laser_control = AudioModulationLaserControl(
self._configuration.audio.output.sample_rate,
self._configuration.audio.output.modulation_on_frequency,
self._configuration.audio.output.modulation_off_frequency,
self._configuration.options.laser_offset)
transformer = TuningTransformer(
scale=self._configuration.calibration.max_deflection)
self._path_to_audio = PathToAudio(
self._laser_control.actual_samples_per_second, transformer,
self._configuration.options.laser_thickness_mm)
self._audio_writer = None
self._controller = None
logging.debug("Setting up audiowriter")
self._audio_writer = AudioWriter(
self._configuration.audio.output.sample_rate,
self._configuration.audio.output.bit_depth,
)
self._current_generator = self._point_generator
self._controller = Controller(
self._laser_control,
self._path_to_audio,
self._audio_writer,
self._current_generator,
)
self.make_pattern_fit()
self._controller.start()
'''Used to show a single point with no calibration applied'''
def show_point(self, xyz=[0.5, 0.5, 0.5]):
x, y, z = xyz
self._point_generator.xy = [x, y]
if (self._current_generator != self._point_generator):
self._unapply_calibration()
self._update_generator(self._point_generator)
'''Used to show a blinking point with no calibration applied used for aligning on and off laser posisition'''
def show_blink(self, xyz=[0.5, 0.5, 0.0]):
x, y, z = xyz
self._blink_generator.xy = [x, y]
if (self._current_generator != self._blink_generator):
self._unapply_calibration()
self._update_generator(self._blink_generator)
'''Used to show a single line on one axis used to line up calibration grid'''
def show_line(self):
self._unapply_calibration()
self._update_generator(self._alignment_generator)
def get_max_deflection(self):
return self._configuration.calibration.max_deflection
def set_max_deflection(self, deflection):
self._configuration.calibration.max_deflection = deflection
self._unapply_calibration()
self._save()
'''Allows user so force the laser on'''
def set_laser_off_override(self, state):
self._controller.laser_off_override = state
'''Gets the currently configured offset for laser on and off'''
def get_laser_offset(self):
return self._configuration.options.laser_offset
'''Sets the currently configured offset for laser on and off'''
def set_laser_offset(self, laser_offset):
self._configuration.options.laser_offset = laser_offset
self._laser_control.set_offset(laser_offset)
self._save()
'''Used to show a test pattern with calibration applied'''
def show_test_pattern(self, pattern):
if pattern in self._test_patterns.keys():
self._apply_calibration()
self._update_generator(self._test_patterns[pattern])
else:
logging.error('Pattern: %s does not exist' % pattern)
raise Exception('Pattern: %s does not exist' % pattern)
'''Changes the speed at which the test pattern is drawn in mm/sec'''
def set_test_pattern_speed(self, speed):
[pattern.set_speed(speed) for pattern in self._test_patterns.values()]
'''Shows the scale square'''
def show_scale(self):
self._unapply_calibration()
self._update_generator(self._scale_generator)
'''returns a list of test patterns'''
def get_test_patterns(self):
return self._test_patterns.keys()
'''Returns the current calibration for the printer'''
def current_calibration(self):
return self._configuration.calibration
'''Saves the suppliled calibration'''
def save_points(self, height, lower_points, upper_points):
self._configuration.calibration.height = height
self._configuration.calibration.lower_points = lower_points
self._configuration.calibration.upper_points = upper_points
self._save()
def _save(self):
self._configuration_manager.save(self._configuration)
self.make_pattern_fit() #TODO make this better.
#deprecated
def make_pattern_fit(self):
for pattern in self._test_patterns.values():
pattern.set_radius(self.get_largest_object_radius())
'''Must be called before shutting down applications'''
def stop(self):
self._controller.stop()
def _update_generator(self, generator):
self._current_generator = generator
self._controller.change_generator(self._current_generator)
def _apply_calibration(self):
self._path_to_audio.set_transformer(
HomogenousTransformer(
scale=self._configuration.calibration.max_deflection,
upper_height=self._configuration.calibration.height,
lower_points=self._configuration.calibration.lower_points,
upper_points=self._configuration.calibration.upper_points))
def _unapply_calibration(self):
self._path_to_audio.set_transformer(
TuningTransformer(
scale=self._configuration.calibration.max_deflection))
def _validate_points(self, points):
if (len(points) != 4):
return False
return True
'''Based on current calibrations_gets_maximum_size_of_object at the base layer'''
def get_largest_object_radius(self):
lowest = None
for (x, y) in self._configuration.calibration.lower_points.values():
if not lowest or abs(x) < lowest:
lowest = abs(x)
if abs(y) < lowest:
lowest = abs(y)
return lowest
def stop(self):
self._controller.stop()