kopia lustrzana https://github.com/vilemduha/blendercam
305 wiersze
10 KiB
Python
305 wiersze
10 KiB
Python
# Preliminary backplot support for autocad clone applications
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# This code modified from iso_read.py and emc2_read.py distriuted with HeeksCAD as of Sep 2010
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# Dan Falck 2011/01/06
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#
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""" use this script to backplot nc files to *.scr file for autocad,bricscad,
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draftsight,progecad,ares commander, etc....
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usage: python cad_read.py temp.nc temp.scr
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"""
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from . import cad_iso_read as iso
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import sys
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# Override some iso parser methods to interpret arc centers as relative to origin, not relative to start of arc.
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# def write_layer(name,number):
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# FILE.write('-LAYER New %s%s \n' %(name,number))
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# FILE.write('-LAYER Set %s%s \n' %(name,number))
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class CAD_backplot(iso.Parser):
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def __init__(self):
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iso.Parser.__init__(self)
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def Parse(self, name, oname=None):
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self.files_open(name, oname)
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# self.begin_ncblock()
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# self.begin_path(None)
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# self.add_line(z=500)
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# self.end_path()
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# self.end_ncblock()
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path_col = None
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f = None
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arc = 0
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# Storage for tool position history of last block processed to properly convert absolute arc centers
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oldx = -1.0
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oldy = 0.0
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oldz = 0.0
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movelist = []
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while self.readline():
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# self.readline returns false if the line is empty - the parsing stops if the line is empty.
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a = None
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b = None
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c = None
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# f = None
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i = None
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j = None
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k = None
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p = None
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q = None
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r = None
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s = None
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x = None
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y = None
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z = None
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iout = None
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jout = None
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kout = None
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tool = 0
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# self.begin_ncblock()
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move = False
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# arc = 0
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# path_col = None
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drill = False
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no_move = False
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words = self.pattern_main.findall(self.line)
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for word in words:
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col = None
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cdata = False
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if word[0] == "A" or word[0] == "a":
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col = "axis"
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a = eval(word[1:])
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move = True
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elif word[0] == "B" or word[0] == "b":
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col = "axis"
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b = eval(word[1:])
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move = True
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elif word[0] == "C" or word[0] == "c":
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col = "axis"
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c = eval(word[1:])
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move = True
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elif word[0] == "F" or word[0] == "f":
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col = "axis"
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f = eval(word[1:])
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move = True
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elif word == "G0" or word == "G00" or word == "g0" or word == "g00":
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##FILE.write('-color Magenta\n')
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path_col = "rapid"
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col = "rapid"
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arc = 0
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elif word == "G1" or word == "G01" or word == "g1" or word == "g01":
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##FILE.write('-color Green\n')
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path_col = "feed"
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col = "feed"
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arc = 0
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elif (
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word == "G2"
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or word == "G02"
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or word == "g2"
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or word == "g02"
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or word == "G12"
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or word == "g12"
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):
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##FILE.write('-color Green\n')
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path_col = "feed"
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col = "feed"
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arc = -1
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elif (
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word == "G3"
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or word == "G03"
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or word == "g3"
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or word == "g03"
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or word == "G13"
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or word == "g13"
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):
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##FILE.write('-color Green\n')
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path_col = "feed"
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col = "feed"
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arc = +1
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elif word == "G10" or word == "g10":
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no_move = True
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elif word == "L1" or word == "l1":
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no_move = True
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elif word == "G20" or word == "G70":
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col = "prep"
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self.set_mode(units=25.4)
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elif word == "G21" or word == "G71":
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col = "prep"
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self.set_mode(units=1.0)
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# Note: Anilam has very non standard params for drill cycles. Not Yet implemented!
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elif word == "G81" or word == "g81":
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drill = True
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no_move = True
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path_col = "feed"
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col = "feed"
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elif word == "G82" or word == "g82":
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drill = True
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no_move = True
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path_col = "feed"
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col = "feed"
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elif word == "G83" or word == "g83":
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drill = True
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no_move = True
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path_col = "feed"
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col = "feed"
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elif word[0] == "G":
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col = "prep"
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elif word[0] == "I" or word[0] == "i":
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col = "axis"
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i = eval(word[1:])
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move = True
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elif word[0] == "J" or word[0] == "j":
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col = "axis"
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j = eval(word[1:])
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move = True
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elif word[0] == "K" or word[0] == "k":
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col = "axis"
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k = eval(word[1:])
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move = True
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elif word[0] == "M":
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col = "misc"
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elif word[0] == "N":
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col = "blocknum"
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elif word[0] == "O":
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col = "program"
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elif word[0] == "P" or word[0] == "p":
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col = "axis"
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p = eval(word[1:])
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move = True
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elif word[0] == "Q" or word[0] == "q":
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col = "axis"
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q = eval(word[1:])
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move = True
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elif word[0] == "R" or word[0] == "r":
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col = "axis"
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r = eval(word[1:])
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move = True
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elif word[0] == "S" or word[0] == "s":
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col = "axis"
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s = eval(word[1:])
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move = True
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elif word[0] == "T":
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col = "tool"
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self.set_tool(eval(word[1:]))
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tool = eval(word[1:])
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elif word[0] == "X" or word[0] == "x":
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col = "axis"
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x = eval(word[1:])
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move = True
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elif word[0] == "Y" or word[0] == "y":
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col = "axis"
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y = eval(word[1:])
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move = True
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elif word[0] == "Z" or word[0] == "z":
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col = "axis"
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z = eval(word[1:])
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move = True
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elif word[0] == "(":
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(col, cdata) = ("comment", True)
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elif word[0] == "!":
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(col, cdata) = ("comment", True)
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elif word[0] == ";":
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(col, cdata) = ("comment", True)
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elif word[0] == "#":
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col = "variable"
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elif word[0] == ":":
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col = "blocknum"
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elif ord(word[0]) <= 32:
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cdata = True
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# self.add_text(word, col, cdata)
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if drill:
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self.begin_path("rapid")
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self.add_line(x, y, r)
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self.end_path()
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self.begin_path("feed")
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self.add_line(x, y, z)
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self.end_path()
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self.begin_path("feed")
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self.add_line(x, y, r)
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self.end_path()
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# elif (tool):
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# write_layer('T',tool)
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else:
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if move and not no_move:
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self.begin_path(path_col)
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# use absolute arc centers for IJK params.
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# Subtract old XYZ off to get relative centers as expected:
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# if path_col == 'rapid':
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# FILE.write('-color Red\n')
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# else:
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# FILE.write('-color Green\n')
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if arc:
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z = oldz
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if (x != None) and (oldx != None) and (i != None):
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iout = i
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if (y != None) and (oldy != None) and (j != None):
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jout = j
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if (z != None) and (oldz != None) and (k != None):
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kout = k
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self.add_arc(x, y, z, iout, jout, kout, r, arc)
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# if (arc == -1):
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##FILE.write('arc %s,%s,%s\n' %(x,y,z))
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# FILE.write('c\n')
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##FILE.write('%s,%s,%s\n' %(oldx+i,oldy+j,oldz))
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##FILE.write('%s,%s,%s\n' %(oldx,oldy,z))
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# else:
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##FILE.write('arc %s,%s,%s\n' %(oldx,oldy,z))
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# FILE.write('c\n')
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##FILE.write('%s,%s,%s\n' %(oldx+i,oldy+j,oldz))
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##FILE.write('%s,%s,%s\n' %(x,y,z))
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else:
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self.add_line(x, y, z, a, b, c)
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if x == None:
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x = oldx
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if y == None:
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y = oldy
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if z == None:
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z = oldz
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scr_line = "line %s,%s,%s %s,%s,%s \n" % (oldx, oldy, oldz, x, y, z)
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# print scr_line
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# FILE.write(scr_line)
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self.end_path()
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if x != None:
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oldx = x
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if y != None:
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oldy = y
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if z != None:
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oldz = z
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# oldx = x
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# oldy = y
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# oldz = z
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self.end_ncblock()
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self.files_close()
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# FILE.write('\n')
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# FILE.close()
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################################################################################
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if __name__ == "__main__":
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parser = CAD_backplot()
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if len(sys.argv) > 2:
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parser.Parse(sys.argv[1], sys.argv[2])
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else:
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parser.Parse(sys.argv[1])
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