kopia lustrzana https://github.com/vilemduha/blendercam
91 wiersze
3.1 KiB
Python
91 wiersze
3.1 KiB
Python
from . import num_reader
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import sys
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import math
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class Parser(num_reader.NumReader):
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def __init__(self, writer):
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num_reader.NumReader.__init__(self, writer)
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self.i = 0
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self.j = 0
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self.x = 0
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self.y = 0
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self.down_z = 0
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self.up_z = 20
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self.up = True
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self.units_to_mm = 0.01
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def ParsePuOrPd(self, up):
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self.line_index = self.line_index + 1
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x = self.get_number()
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if len(x) > 0:
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y = self.get_number()
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if len(y) > 0:
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if up: color = "rapid"
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else: color = "feed"
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self.add_word(color)
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self.begin_path(color)
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if up: z = self.up_z
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else: z = self.down_z
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if self.up != up:
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self.add_line(self.x * self.units_to_mm, self.y * self.units_to_mm, z)
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self.add_line(int(x) * self.units_to_mm, int(y) * self.units_to_mm, z)
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self.end_path()
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self.up = up
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self.x = int(x)
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self.y = int(y)
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def ParseAA(self):
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self.line_index = self.line_index + 1
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cx = self.get_number()
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if len(cx) > 0:
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cy = self.get_number()
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if len(cy) > 0:
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a = self.get_number()
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if len(a) > 0:
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self.add_word("feed")
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self.begin_path("feed")
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z = self.down_z
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if self.up:
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self.add_line(self.x * self.units_to_mm, self.y * self.units_to_mm, z)
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sdx = self.x - int(cx)
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sdy = self.y - int(cy)
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start_angle = math.atan2(sdy, sdx)
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end_angle = start_angle + int(a) * math.pi/180
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radius = math.sqrt(sdx*sdx + sdy*sdy)
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ex = int(cx) + radius * math.cos(end_angle)
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ey = int(cy) + radius * math.sin(end_angle)
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if int(a) > 0: d = 1
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else: d = -1
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self.add_arc(ex * self.units_to_mm, ey * self.units_to_mm, i = int(-sdx) * self.units_to_mm, j = int(-sdy) * self.units_to_mm, d = d)
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self.end_path()
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self.up = False
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self.x = int(ex)
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self.y = int(ey)
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def ParseFromFirstLetter(self, c):
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if c == 'P':
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self.line_index = self.line_index + 1
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if self.line_index < self.line_length:
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c1 = self.line[self.line_index]
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self.parse_word += c1
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if c1 == 'U': # PU
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self.ParsePuOrPd(True)
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elif c1 == 'D': # PD
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self.ParsePuOrPd(False)
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elif c == 'A':
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self.line_index = self.line_index + 1
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if self.line_index < self.line_length:
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c1 = self.line[self.line_index]
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self.parse_word += c1
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if c1 == 'A': # AA, arc absolute
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self.ParseAA()
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