def filter_toolpath(self, toolpath):
minimum_steps = []
conv = []
for key in "xyz":
minimum_steps.append(self.settings["step_width_%s" % key])
for step_width in minimum_steps:
conv.append(_get_num_converter(step_width)[0])
last_pos = None
path = []
for step in toolpath:
if step.action in MOVES_LIST:
if last_pos:
real_target_position = []
diff = [(abs(a_conv(a_last_pos) - a_conv(a_pos)))
for a_conv, a_last_pos, a_pos in zip(
conv, last_pos, step.position)]
position_changed = False
# For every axis: if the new position is closer than the defined step width,
# then stay at the previous position.
# see https://sf.net/p/pycam/discussion/860184/thread/930b1c7f/
for axis_distance, min_distance, axis_last, axis_wanted in zip(
diff, minimum_steps, last_pos, step.position):
if axis_distance >= min_distance:
real_target_position.append(axis_wanted)
position_changed = True
else:
real_target_position.append(axis_last)
if not position_changed:
# The limitiation was not exceeded for any axis.
continue
else:
real_target_position = step.position
# TODO: this would also change the GCode output - we want
# this, but it sadly breaks other code pieces that rely on
# floats instead of decimals at this point. The output
# conversion needs to move into the GCode output hook.
# destination = [a_conv(a_pos) for a_conv, a_pos in zip(conv, step.position)]
destination = real_target_position
path.append(
ToolpathSteps.get_step_class_by_action(
step.action)(destination))
# We store the real machine position (instead of the "wanted" position).
last_pos = real_target_position
else:
# forget "last_pos" - we don't know what happened in between
last_pos = None
path.append(step)
return path
def disable_spindle(path, index):
path.insert(index, ToolpathSteps.MachineSetting("spindle_enabled", False))
def enable_spindle(path, index):
path.insert(index, ToolpathSteps.MachineSetting("spindle_enabled", True))
if self.settings["delay"]:
path.insert(index + 1, ToolpathSteps.MachineSetting("delay",
self.settings["delay"]))
def set_speed(path, index):
path.insert(
index,
ToolpathSteps.MachineSetting("spindle_speed",
self.settings["speed"]))