mirror of
https://github.com/telavivmakers/at-tami.git
synced 2024-05-25 11:56:54 +03:00
302 lines
9.8 KiB
Python
302 lines
9.8 KiB
Python
#!/usr/bin/env python
|
|
"""This file handles the writing of the scoring lines Gerber file
|
|
--------------------------------------------------------------------
|
|
|
|
This program is licensed under the GNU General Public License (GPL)
|
|
Version 3. See http://www.fsf.org for details of the license.
|
|
|
|
Rugged Circuits LLC
|
|
http://ruggedcircuits.com/gerbmerge
|
|
"""
|
|
|
|
import config
|
|
import util
|
|
import makestroke
|
|
|
|
# Add a horizontal line if its within the extents of the panel. Also, trim
|
|
# start and/or end points to the extents.
|
|
def addHorizontalLine(Lines, x1, x2, y, extents):
|
|
assert (x1 < x2)
|
|
|
|
# For a horizontal line, y must be above extents[1] and below extents[3].
|
|
if extents[1] < y < extents[3]:
|
|
# Now trim endpoints to be greater than extents[0] and below extents[2]
|
|
line = (max(extents[0], x1), y, min(extents[2], x2), y)
|
|
Lines.append(line)
|
|
|
|
# Add a vertical line if its within the extents of the panel. Also, trim
|
|
# start and/or end points to the extents.
|
|
def addVerticalLine(Lines, x, y1, y2, extents):
|
|
assert (y1 < y2)
|
|
|
|
# For a vertical line, x must be above extents[0] and below extents[2].
|
|
if extents[0] < x < extents[2]:
|
|
# Now trim endpoints to be greater than extents[1] and below extents[3]
|
|
line = (x, max(extents[1], y1), x, min(extents[3], y2))
|
|
Lines.append(line)
|
|
|
|
def isHorizontal(line):
|
|
return line[1]==line[3]
|
|
|
|
def isVertical(line):
|
|
return line[0]==line[2]
|
|
|
|
def clusterOrdinates(values):
|
|
"""Create a list of tuples where each tuple is a variable-length list of items
|
|
from 'values' that are all within 2 mils of each other."""
|
|
|
|
# First, make sure the values are sorted. Then, take the first one and go along
|
|
# the list clustering as many as possible.
|
|
values.sort()
|
|
currCluster = None
|
|
L = []
|
|
for val in values:
|
|
if currCluster is None:
|
|
currCluster = (val,)
|
|
else:
|
|
if (val - currCluster[0]) <= 0.002:
|
|
currCluster = currCluster + (val,)
|
|
else:
|
|
L.append(currCluster)
|
|
currCluster = (val,)
|
|
|
|
if currCluster is not None:
|
|
L.append(currCluster)
|
|
|
|
return L
|
|
|
|
def mergeHLines(Lines):
|
|
"""Lines is a list of 4-tuples (lines) that have nearly the same Y ordinate and are to be
|
|
optimized by combining overlapping lines."""
|
|
|
|
# First, make sure lines are sorted by starting X ordinate and that all lines
|
|
# proceed to the right.
|
|
Lines.sort()
|
|
for line in Lines:
|
|
assert line[0] < line[2]
|
|
|
|
# Obtain the average value of the Y ordinate and use that as the Y ordinate for
|
|
# all lines.
|
|
yavg = 0.0
|
|
for line in Lines:
|
|
yavg += line[1]
|
|
yavg /= len(Lines)
|
|
|
|
NewLines = []
|
|
|
|
# Now proceed to pick off one line at a time and try to merge it with
|
|
# the next one in sequence.
|
|
currLine = None
|
|
for line in Lines:
|
|
if currLine is None:
|
|
currLine = line
|
|
else:
|
|
# If the line to examine starts to the left of (within 0.002") the end
|
|
# of the current line, extend the current line.
|
|
if line[0] <= currLine[2]+0.002:
|
|
currLine = (currLine[0], yavg, max(line[2],currLine[2]), yavg)
|
|
else:
|
|
NewLines.append(currLine)
|
|
currLine = line
|
|
|
|
NewLines.append(currLine)
|
|
|
|
return NewLines
|
|
|
|
def sortByY(A,B):
|
|
"Helper function to sort two lines (4-tuples) by their starting Y ordinate"
|
|
return cmp(A[1], B[1])
|
|
|
|
def mergeVLines(Lines):
|
|
"""Lines is a list of 4-tuples (lines) that have nearly the same X ordinate and are to be
|
|
optimized by combining overlapping lines."""
|
|
|
|
# First, make sure lines are sorted by starting Y ordinate and that all lines
|
|
# proceed up.
|
|
Lines.sort(sortByY)
|
|
for line in Lines:
|
|
assert line[1] < line[3]
|
|
|
|
# Obtain the average value of the X ordinate and use that as the X ordinate for
|
|
# all lines.
|
|
xavg = 0.0
|
|
for line in Lines:
|
|
xavg += line[0]
|
|
xavg /= len(Lines)
|
|
|
|
NewLines = []
|
|
|
|
# Now proceed to pick off one line at a time and try to merge it with
|
|
# the next one in sequence.
|
|
currLine = None
|
|
for line in Lines:
|
|
if currLine is None:
|
|
currLine = line
|
|
else:
|
|
# If the line to examine starts below (within 0.002") the end
|
|
# of the current line, extend the current line.
|
|
if line[1] <= currLine[3]+0.002:
|
|
currLine = (xavg, currLine[1], xavg, max(line[3],currLine[3]))
|
|
else:
|
|
NewLines.append(currLine)
|
|
currLine = line
|
|
|
|
NewLines.append(currLine)
|
|
|
|
return NewLines
|
|
|
|
def mergeLines(Lines):
|
|
# All lines extend up (vertical) and to the right (horizontal). First, do
|
|
# simple merges. Sort all lines, which will order the lines with starting
|
|
# points in increasing X order (i.e., to the right).
|
|
Lines.sort()
|
|
|
|
# Now sort the lines into horizontal lines and vertical lines. For each
|
|
# ordinate, group all lines by that ordinate in a dictionary. Thus, all
|
|
# horizontal lines will be grouped together by Y ordinate, and all
|
|
# vertical lines will be grouped together by X ordinate.
|
|
HLines = {}
|
|
VLines = {}
|
|
|
|
for line in Lines:
|
|
if isHorizontal(line):
|
|
try:
|
|
HLines[line[1]].append(line)
|
|
except KeyError:
|
|
HLines[line[1]] = [line]
|
|
else:
|
|
try:
|
|
VLines[line[0]].append(line)
|
|
except KeyError:
|
|
VLines[line[0]] = [line]
|
|
|
|
# I don't think the next two blocks of code are necessary (merging lines
|
|
# that are at exactly the same ordinate) since the last two blocks of
|
|
# code do the same thing more generically by merging lines at close-enough
|
|
# ordinates.
|
|
|
|
# Extend horizontal lines
|
|
NewHLines = {}
|
|
for yval,lines in HLines.items():
|
|
# yval is the Y ordinate of this group of lines. lines is the set of all
|
|
# lines with this Y ordinate.
|
|
NewHLines[yval] = []
|
|
|
|
# Try to extend the first element of this list, which will be the leftmost.
|
|
xline = lines[0]
|
|
for line in lines[1:]:
|
|
# If this line's left edge is within 2 mil of the right edge of the line
|
|
# we're currently trying to grow, then grow it.
|
|
if abs(line[0] - xline[2]) <= 0.002: # Arbitrary 2mil?
|
|
# Extend...
|
|
xline = (xline[0], xline[1], line[2], xline[1])
|
|
else:
|
|
# ...otherwise, append the currently-extended line and make this
|
|
# line the new one we try to extend.
|
|
NewHLines[yval].append(xline)
|
|
xline = line
|
|
NewHLines[yval].append(xline)
|
|
|
|
# Extend vertical lines
|
|
NewVLines = {}
|
|
for xval,lines in VLines.items():
|
|
# xval is the X ordinate of this group of lines. lines is the set of all
|
|
# lines with this X ordinate.
|
|
NewVLines[xval] = []
|
|
|
|
# Try to extend the first element of this list, which will be the bottom-most.
|
|
xline = lines[0]
|
|
for line in lines[1:]:
|
|
# If this line's bottom edge is within 2 mil of the top edge of the line
|
|
# we're currently trying to grow, then grow it.
|
|
if abs(line[1] - xline[3]) <= 0.002: # Arbitrary 2mil?
|
|
# Extend...
|
|
xline = (xline[0], xline[1], xline[0], line[3])
|
|
else:
|
|
# ...otherwise, append the currently-extended line and make this
|
|
# line the new one we try to extend.
|
|
NewVLines[xval].append(xline)
|
|
xline = line
|
|
NewVLines[xval].append(xline)
|
|
|
|
HLines = NewHLines
|
|
VLines = NewVLines
|
|
NewHLines = []
|
|
NewVLines = []
|
|
|
|
# Now combine lines that have their endpoints either very near each other
|
|
# or within each other. We will have to sort all horizontal lines by their
|
|
# Y ordinates and group them according to Y ordinates that are close enough
|
|
# to each other.
|
|
yvals = HLines.keys()
|
|
clusters = clusterOrdinates(yvals) # A list of clustered tuples containing yvals
|
|
|
|
for cluster in clusters:
|
|
clusterLines = []
|
|
for yval in cluster:
|
|
clusterLines.extend(HLines[yval])
|
|
|
|
# clusterLines is now a list of lines (4-tuples) that all have nearly the same
|
|
# Y ordinate. Merge them together.
|
|
NewHLines.extend(mergeHLines(clusterLines))
|
|
|
|
xvals = VLines.keys()
|
|
clusters = clusterOrdinates(xvals)
|
|
for cluster in clusters:
|
|
clusterLines = []
|
|
for xval in cluster:
|
|
clusterLines.extend(VLines[xval])
|
|
|
|
# clusterLines is now a list of lines (4-tuples) that all have nearly the same
|
|
# X ordinate. Merge them together.
|
|
NewVLines.extend(mergeVLines(clusterLines))
|
|
|
|
Lines = NewHLines + NewVLines
|
|
|
|
return Lines
|
|
|
|
# Main entry point. Gerber file has already been opened, header written
|
|
# out, 1mil tool selected.
|
|
def writeScoring(fid, Place, OriginX, OriginY, MaxXExtent, MaxYExtent):
|
|
# For each job, write out 4 score lines, above, to the right, below, and
|
|
# to the left. After we collect all potential scoring lines, we worry
|
|
# about merging, etc.
|
|
dx = config.Config['xspacing']/2.0
|
|
dy = config.Config['yspacing']/2.0
|
|
extents = (OriginX, OriginY, MaxXExtent, MaxYExtent)
|
|
|
|
Lines = []
|
|
for layout in Place.jobs:
|
|
x = layout.x - dx
|
|
y = layout.y - dy
|
|
X = layout.x + layout.width_in() + dx
|
|
Y = layout.y + layout.height_in() + dy
|
|
|
|
# Just so we don't get 3.75000000004 and 3.75000000009, we round to
|
|
# 2.5 limits.
|
|
x,y,X,Y = [round(val,5) for val in [x,y,X,Y]]
|
|
|
|
if 0: # Scoring lines go all the way across the panel now
|
|
addHorizontalLine(Lines, x, X, Y, extents) # above job
|
|
addVerticalLine(Lines, X, y, Y, extents) # to the right of job
|
|
addHorizontalLine(Lines, x, X, y, extents) # below job
|
|
addVerticalLine(Lines, x, y, Y, extents) # to the left of job
|
|
else:
|
|
addHorizontalLine(Lines, OriginX, MaxXExtent, Y, extents) # above job
|
|
addVerticalLine(Lines, X, OriginY, MaxYExtent, extents) # to the right of job
|
|
addHorizontalLine(Lines, OriginX, MaxXExtent, y, extents) # below job
|
|
addVerticalLine(Lines, x, OriginY, MaxYExtent, extents) # to the left of job
|
|
|
|
# Combine disparate lines into single lines
|
|
Lines = mergeLines(Lines)
|
|
|
|
#for line in Lines:
|
|
# print [round(x,3) for x in line]
|
|
|
|
# Write 'em out
|
|
for line in Lines:
|
|
makestroke.drawPolyline(fid, [(util.in2gerb(line[0]),util.in2gerb(line[1])), \
|
|
(util.in2gerb(line[2]),util.in2gerb(line[3]))], 0, 0)
|
|
|
|
# vim: expandtab ts=2 sw=2 ai syntax=python
|