def __init__(self, pipe):
Interpreter.__init__(self, pipe=pipe)
self.plot = None
self.speed = 20.0
self.scale = 1000.0 # g21 default.
self.feed_convert = lambda s: s / (self.scale * 60.0) # G94 default
self.feed_invert = lambda s: s * (self.scale * 60.0)
self.power_updated = True
self.speed_updated = True
self.group_modulation = False
def move(self, x, y):
line = []
if self.state == INTERPRETER_STATE_PROGRAM:
line.append('G1')
else:
line.append('G0')
line.append('X%f' % (x / self.scale))
line.append('Y%f' % (y / self.scale))
if self.power_updated:
line.append('S%f' % self.power)
self.power_updated = False
if self.speed_updated:
line.append('F%d' % int(self.feed_convert(self.speed)))
self.speed_updated = False
self.pipe.write(' '.join(line) + self.device.line_end)
Interpreter.move(self, x, y)
def execute(self):
if self.hold():
return
while self.plot is not None:
if self.hold():
return
try:
x, y, on = next(self.plot)
if on == 0:
self.laser_on()
else:
self.laser_off()
self.move(x, y)
except StopIteration:
self.plot = None
return
except RuntimeError:
self.plot = None
return
Interpreter.execute(self)
def ensure_program_mode(self, *values):
self.pipe.write('M3' + self.device.line_end)
Interpreter.ensure_program_mode(self, *values)
def set_speed(self, speed=None):
Interpreter.set_speed(self, speed)
self.speed_updated = True
def set_power(self, power=1000.0):
Interpreter.set_power(self, power)
self.power_updated = True
def ensure_finished_mode(self, *values):
self.pipe.write('M5' + self.device.line_end)
Interpreter.ensure_finished_mode(self, *values)