def rectArea(area, bit_diameter):
""" Required arguments: area (as (x=length, y=width), bit_diameter.
Assumes that the bit is already in the origin corner at required depth of cut.
"""
length, width = area
if bit_diameter > length or bit_diameter > width:
raise ValueError("Bit is too large to cut specified area")
file_text = G.set_INCR_mode()
# magic number 0.5 is the pass-to-pass overlap
pass_width = bit_diameter - 0.5
current_x = 0
# first pass
file_text += G.G1_Y(width - bit_diameter)
# sentinel to track the pass direction; out is opposite to back, and the
# bit is now ready to come back
out = False
while current_x < (length - bit_diameter):
# prepare for the next pass
# current_x = min(current_x + pass_width, length - bit_diameter)
# file_text += G.G1_X(current_x)
if current_x + pass_width <= length - bit_diameter:
file_text += G.G1_X(pass_width)
current_x = current_x + pass_width
else:
file_text += G.G1_X(length - bit_diameter - current_x)
current_x = length - bit_diameter
if out == True:
file_text += G.G1_Y(width - bit_diameter)
else:
file_text += G.G1_Y(-(width - bit_diameter))
out = not out
# last move is a return to relative origin
if out == True:
# Moves straight back along original side wall
# file_text += G.G1_XY(( -(length - bit_diameter), 0))
# Change to: move across to other side, move straight back, then back to origin
file_text += G.G1_Y((0, (width - bit_diameter)))
file_text += G.G1_X((-(length - bit_diameter), 0))
file_text += G.G0_Y((0, -(width - bit_diameter)))
else:
# Moves diagonally across the cut area
# file_text += G.G1_XY(( -(length - bit_diameter), -(width - bit_diameter)))
# Change to: move straight back, then back to origin
file_text += G.G1_X((-(length - bit_diameter), 0))
file_text += G.G0_Y((0, -(width - bit_diameter)))
file_text += G.set_ABS_mode()
return file_text
