1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
#! /usr/bin/env python
# -*- coding: utf-8 -*-
# copyright 2014 Hamilton Kibbe <ham@hamiltonkib.be>
# Modified from code by Paulo Henrique Silva <ph.silva@gmail.com>
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from ..statements import (
CommentStmt, UnknownStmt, EofStmt, ParamStmt, CoordStmt, ApertureStmt
)
class GerberContext(object):
settings = {}
x = 0
y = 0
aperture = 0
interpolation = 'linear'
image_polarity = 'positive'
level_polarity = 'dark'
def __init__(self):
pass
def set_format(self, settings):
self.settings = settings
def set_coord_format(self, zero_suppression, format, notation):
self.settings['zero_suppression'] = zero_suppression
self.settings['format'] = format
self.settings['notation'] = notation
def set_coord_notation(self, notation):
self.settings['notation'] = notation
def set_coord_unit(self, unit):
self.settings['units'] = unit
def set_image_polarity(self, polarity):
self.image_polarity = polarity
def set_level_polarity(self, polarity):
self.level_polarity = polarity
def set_interpolation(self, interpolation):
self.interpolation = 'linear' if interpolation in ("G01", "G1") else 'arc'
def set_aperture(self, d):
self.aperture = d
def resolve(self, x, y):
return x or self.x, y or self.y
def define_aperture(self, d, shape, modifiers):
pass
def move(self, x, y, resolve=True):
if resolve:
self.x, self.y = self.resolve(x, y)
else:
self.x, self.y = x, y
def stroke(self, x, y):
pass
def line(self, x, y):
pass
def arc(self, x, y):
pass
def flash(self, x, y):
pass
def drill(self, x, y, diameter):
pass
def evaluate(self, stmt):
if isinstance(stmt, (CommentStmt, UnknownStmt, EofStmt)):
return
elif isinstance(stmt, ParamStmt):
self._evaluate_param(stmt)
elif isinstance(stmt, CoordStmt):
self._evaluate_coord(stmt)
elif isinstance(stmt, ApertureStmt):
self._evaluate_aperture(stmt)
else:
raise Exception("Invalid statement to evaluate")
def _evaluate_param(self, stmt):
if stmt.param == "FS":
self.set_coord_format(stmt.zero_suppression, stmt.format, stmt.notation)
self.set_coord_notation(stmt.notation)
elif stmt.param == "MO:":
self.set_coord_unit(stmt.mode)
elif stmt.param == "IP:":
self.set_image_polarity(stmt.ip)
elif stmt.param == "LP:":
self.set_level_polarity(stmt.lp)
elif stmt.param == "AD":
self.define_aperture(stmt.d, stmt.shape, stmt.modifiers)
def _evaluate_coord(self, stmt):
if stmt.function in ("G01", "G1", "G02", "G2", "G03", "G3"):
self.set_interpolation(stmt.function)
if stmt.op == "D01":
self.stroke(stmt.x, stmt.y)
elif stmt.op == "D02":
self.move(stmt.x, stmt.y)
elif stmt.op == "D03":
self.flash(stmt.x, stmt.y)
def _evaluate_aperture(self, stmt):
self.set_aperture(stmt.d)
|
