mirror of
https://github.com/telavivmakers/at-tami.git
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349 lines
12 KiB
Python
349 lines
12 KiB
Python
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#!/usr/bin/env python
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"""
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Define and manage aperture macros (%AM command). Currently,
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only macros without replaceable parameters (e.g., $1, $2, etc.)
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are supported.
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--------------------------------------------------------------------
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This program is licensed under the GNU General Public License (GPL)
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Version 3. See http://www.fsf.org for details of the license.
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Rugged Circuits LLC
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http://ruggedcircuits.com/gerbmerge
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"""
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import sys
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import re
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import string
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import copy
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import config
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_macro_pat = re.compile(r'^%AM([^*]+)\*$')
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# This list stores the expected types of parameters for each primitive type
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# (e.g., outline, line, circle, polygon, etc.). None is used for undefined
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# primitives. Each entry corresponds to the defined primitive code, and
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# comprises a tuple of conversion functions (i.e., built-in int() and float()
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# functions) that apply to all parameters AFTER the primitive code. For example,
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# code 1 (circle) may be instantiated as:
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# 1,1,0.025,0.0,0.0
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# (the parameters are code, exposure type, diameter, X center, Y center).
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# After the integer code, we expect an int for exposure type, then floats
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# for the remaining three parameters. Thus, the entry for code 1 is
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# (int, float, float, float).
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PrimitiveParmTypes = (
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None, # Code 0 -- undefined
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(int, float, float, float), # Code 1 -- circle
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(int, float, float, float, float, float, float), # Code 2 -- line (vector)
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None, # Code 3 -- end-of-file for .DES files
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(int, int, float, float, float, float, float), # Code 4 -- outline...takes any number of additional floats
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(int, int, float, float, float, float), # Code 5 -- regular polygon
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(float, float, float, float, float, int, float, float, float), # Code 6 -- moire
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(float, float, float, float, float, float), # Code 7 -- thermal
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None, # Code 8 -- undefined
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None, # Code 9 -- undefined
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None, # Code 10 -- undefined
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None, # Code 11 -- undefined
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None, # Code 12 -- undefined
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None, # Code 13 -- undefined
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None, # Code 14 -- undefined
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None, # Code 15 -- undefined
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None, # Code 16 -- undefined
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None, # Code 17 -- undefined
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None, # Code 18 -- undefined
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None, # Code 19 -- undefined
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(int, float, float, float, float, float), # Code 20 -- line (vector)...alias for code 2
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(int, float, float, float, float, float), # Code 21 -- line (center)
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(int, float, float, float, float, float) # Code 22 -- line (lower-left)
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)
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def rotatexy(x,y):
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# Rotate point (x,y) counterclockwise 90 degrees about the origin
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return (-y,x)
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def rotatexypair(L, ix):
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# Rotate list items L[ix],L[ix+1] by 90 degrees
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L[ix],L[ix+1] = rotatexy(L[ix],L[ix+1])
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def swapxypair(L, ix):
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# Swap two list elements
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L[ix],L[ix+1] = L[ix+1],L[ix]
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def rotatetheta(th):
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# Increase angle th in degrees by +90 degrees (counterclockwise).
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# Handle modulo 360 issues
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th += 90
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if th >= 360:
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th -= 360
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return th
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def rotatethelem(L, ix):
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# Increase angle th by +90 degrees for a list element
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L[ix] = rotatetheta(L[ix])
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class ApertureMacroPrimitive:
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def __init__(self, code=-1, fields=None):
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self.code = code
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self.parms = []
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if fields is not None:
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self.setFromFields(code, fields)
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def setFromFields(self, code, fields):
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# code is an integer describing the primitive type, and fields is
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# a list of STRINGS for each parameter
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self.code = code
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# valids will be one of the PrimitiveParmTypes tuples above. Some are
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# None to indicate illegal codes. We also set valids to None to indicate
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# the macro primitive code is outside the range of known types.
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try:
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valids = PrimitiveParmTypes[code]
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except:
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valids = None
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if valids is None:
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raise RuntimeError, 'Undefined aperture macro primitive code %d' % code
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# We expect exactly the number of fields required, except for macro
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# type 4 which is an outline and has a variable number of points.
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# For outlines, the second parameter indicates the number of points,
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# each of which has an (X,Y) co-ordinate. Thus, we expect an Outline
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# specification to have 1+1+2*N+1=3+2N fields:
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# - first field is exposure
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# - second field is number of points
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# - 2*N fields for X,Y points
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# - last field is rotation
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if self.code==4:
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if len(fields) < 2:
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raise RuntimeError, 'Outline macro primitive has way too few fields'
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try:
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N = int(fields[1])
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except:
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raise RuntimeError, 'Outline macro primitive has non-integer number of points'
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if len(fields) != (3+2*N):
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raise RuntimeError, 'Outline macro primitive has %d fields...expecting %d fields' % (len(fields), 3+2*N)
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else:
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if len(fields) != len(valids):
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raise RuntimeError, 'Macro primitive has %d fields...expecting %d fields' % (len(fields), len(valids))
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# Convert each parameter on the input line to an entry in the self.parms
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# list, using either int() or float() conversion.
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for parmix in range(len(fields)):
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try:
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converter = valids[parmix]
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except:
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converter = float # To handle variable number of points in Outline type
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try:
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self.parms.append(converter(fields[parmix]))
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except:
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raise RuntimeError, 'Aperture macro primitive parameter %d has incorrect type' % (parmix+1)
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def setFromLine(self, line):
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# Account for DOS line endings and get rid of line ending and '*' at the end
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line = line.replace('\x0D', '')
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line = line.rstrip()
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line = line.rstrip('*')
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fields = line.split(',')
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try:
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try:
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code = int(fields[0])
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except:
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raise RuntimeError, 'Illegal aperture macro primitive code "%s"' % fields[0]
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self.setFromFields(code, fields[1:])
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except:
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print '='*20
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print "==> ", line
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print '='*20
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raise
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def rotate(self):
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if self.code == 1: # Circle: nothing to do
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pass
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elif self.code in (2,20): # Line (vector): fields (2,3) and (4,5) must be rotated, no need to
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# rotate field 6
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rotatexypair(self.parms, 2)
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rotatexypair(self.parms, 4)
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elif self.code == 21: # Line (center): fields (3,4) must be rotated, and field 5 incremented by +90
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rotatexypair(self.parms, 3)
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rotatethelem(self.parms, 5)
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elif self.code == 22: # Line (lower-left): fields (3,4) must be rotated, and field 5 incremented by +90
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rotatexypair(self.parms, 3)
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rotatethelem(self.parms, 5)
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elif self.code == 4: # Outline: fields (2,3), (4,5), etc. must be rotated, the last field need not be incremented
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ix = 2
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for pts in range(self.parms[1]): # parms[1] is the number of points
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rotatexypair(self.parms, ix)
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ix += 2
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#rotatethelem(self.parms, ix)
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elif self.code == 5: # Polygon: fields (2,3) must be rotated, and field 5 incremented by +90
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rotatexypair(self.parms, 2)
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rotatethelem(self.parms, 5)
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elif self.code == 6: # Moire: fields (0,1) must be rotated, and field 8 incremented by +90
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rotatexypair(self.parms, 0)
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rotatethelem(self.parms, 8)
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elif self.code == 7: # Thermal: fields (0,1) must be rotated, and field 5 incremented by +90
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rotatexypair(self.parms, 0)
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rotatethelem(self.parms, 5)
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def __str__(self):
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# Construct a string with ints as ints and floats as floats
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s = '%d' % self.code
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for parmix in range(len(self.parms)):
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valids = PrimitiveParmTypes[self.code]
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format = ',%f'
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try:
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if valids[parmix] is int:
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format = ',%d'
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except:
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pass # '%f' is OK for Outline extra points
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s += format % self.parms[parmix]
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return s
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def writeDef(self, fid):
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fid.write('%s*\n' % str(self))
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class ApertureMacro:
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def __init__(self, name):
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self.name = name
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self.prim = []
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def add(self, prim):
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self.prim.append(prim)
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def rotate(self):
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for prim in self.prim:
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prim.rotate()
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def rotated(self):
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# Return copy of ourselves, rotated. Replace 'R' as the first letter of the
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# macro name. We don't append because we like to be able to count the
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# number of aperture macros by stripping off the leading character.
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M = copy.deepcopy(self)
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M.rotate()
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M.name = 'R'+M.name[1:]
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return M
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def dump(self, fid=sys.stdout):
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fid.write(str(self))
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def __str__(self):
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s = '%s:\n' % self.name
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s += self.hash()
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return s
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def hash(self):
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s = ''
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for prim in self.prim:
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s += ' '+str(prim)+'\n'
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return s
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def writeDef(self, fid):
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fid.write('%%AM%s*\n' % self.name)
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for prim in self.prim:
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prim.writeDef(fid)
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fid.write('%\n')
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def parseApertureMacro(s, fid):
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match = _macro_pat.match(s)
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if match:
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name = match.group(1)
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M = ApertureMacro(name)
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for line in fid:
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if line[0]=='%':
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return M
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P = ApertureMacroPrimitive()
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P.setFromLine(line)
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M.add(P)
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else:
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raise RuntimeError, "Premature end-of-file while parsing aperture macro"
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else:
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return None
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# This function adds the new aperture macro AM to the global aperture macro
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# table. The return value is the modified macro (name modified to be its global
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# name). macro.
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def addToApertureMacroTable(AM):
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GAMT = config.GAMT
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# Must sort keys by integer value, not string since 99 comes before 100
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# as an integer but not a string.
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keys = map(int, map(lambda K: K[1:], GAMT.keys()))
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keys.sort()
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if len(keys):
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lastCode = keys[-1]
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else:
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lastCode = 0
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mcode = 'M%d' % (lastCode+1)
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AM.name = mcode
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GAMT[mcode] = AM
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return AM
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if __name__=="__main__":
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# Create a funky aperture macro with all the fixins, and make sure
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# it rotates properly.
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M = ApertureMacro('TEST')
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# X and Y axes
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M.add(ApertureMacroPrimitive(2, ('1', '0.0025', '0.0', '-0.1', '0.0', '0.1', '0.0')))
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M.add(ApertureMacroPrimitive(2, ('1', '0.0025', '0.0', '-0.1', '0.0', '0.1', '90.0')))
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# A circle in the top-right quadrant, touching the axes
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M.add(ApertureMacroPrimitive(1, ('1', '0.02', '0.01', '0.01')))
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# A line of slope -1 centered on the above circle, of thickness 5mil, length 0.05
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M.add(ApertureMacroPrimitive(2, ('1', '0.005', '0.0', '0.02', '0.02', '0.0', '0.0')))
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# A narrow vertical rectangle centered on the circle of width 2.5mil
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M.add(ApertureMacroPrimitive(21, ('1', '0.0025', '0.03', '0.01', '0.01', '0.0')))
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# A 45-degree line in the third quadrant, not quite touching the origin
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M.add(ApertureMacroPrimitive(22, ('1', '0.02', '0.01', '-0.03', '-0.03', '45')))
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# A right triangle in the second quadrant
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M.add(ApertureMacroPrimitive(4, ('1', '4', '-0.03', '0.01', '-0.03', '0.03', '-0.01', '0.01', '-0.03', '0.01', '0.0')))
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# A pentagon in the fourth quadrant, rotated by 15 degrees
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M.add(ApertureMacroPrimitive(5, ('1', '5', '0.03', '-0.03', '0.02', '15')))
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# A moire in the first quadrant, beyond the circle, with 2 annuli
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M.add(ApertureMacroPrimitive(6, ('0.07', '0.07', '0.04', '0.005', '0.01', '2', '0.005', '0.04', '0.0')))
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# A thermal in the second quadrant, beyond the right triangle
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M.add(ApertureMacroPrimitive(7, ('-0.07', '0.07', '0.03', '0.02', '0.005', '15')))
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MR = M.rotated()
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# Generate the Gerber so we can view it
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fid = file('amacro.ger', 'wt')
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print >> fid, \
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"""G75*
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G70*
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%OFA0B0*%
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%FSLAX24Y24*%
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%IPPOS*%
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%LPD*%"""
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M.writeDef(fid)
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MR.writeDef(fid)
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print >> fid, \
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"""%ADD10TEST*%
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%ADD11TESTR*%
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D10*
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X010000Y010000D03*
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D11*
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X015000Y010000D03*
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M02*"""
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fid.close()
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print M
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print MR
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