265 lines
10 KiB
Python
Executable file
265 lines
10 KiB
Python
Executable file
#!/usr/bin/env python3
|
|
|
|
import subprocess
|
|
import zipfile
|
|
import tempfile
|
|
import os.path as path
|
|
import os
|
|
import sys
|
|
import time
|
|
import shutil
|
|
import math
|
|
|
|
import tqdm
|
|
import gerber
|
|
from gerber.render import GerberCairoContext
|
|
import numpy as np
|
|
import cv2
|
|
|
|
def paste_image(
|
|
target_gerber:str,
|
|
outline_gerber:str,
|
|
source_img:np.ndarray,
|
|
subtract_gerber:list=[],
|
|
extend_overlay_r_mil:float=12,
|
|
extend_picture_r_mil:float=2,
|
|
status_print=lambda *args:None,
|
|
debugdir:str=None):
|
|
debugctr = 0
|
|
def debugimg(img, name):
|
|
nonlocal debugctr
|
|
if debugdir:
|
|
cv2.imwrite(path.join(debugdir, '{:02d}{}.png'.format(debugctr, name)), img)
|
|
debugctr += 1
|
|
|
|
status_print('Parsing outline gerber')
|
|
outline = gerber.loads(outline_gerber)
|
|
(minx, maxx), (miny, maxy) = outline.bounds
|
|
grbw, grbh = maxx - minx, maxy - miny
|
|
status_print(' * outline has offset {}, size {}'.format((minx, miny), (grbw, grbh)))
|
|
|
|
imgh, imgw = source_img.shape
|
|
scale = math.ceil(max(imgw/grbw, imgh/grbh)) # scale is in dpi
|
|
status_print(' * source image has size {}, going for scale {}dpi'.format((imgw, imgh), scale))
|
|
|
|
status_print('Parsing target gerber')
|
|
target = gerber.loads(target_gerber)
|
|
(tminx, tmaxx), (tminy, tmaxy) = target.bounds
|
|
status_print(' * target layer has offset {}, size {}'.format((tminx, tminy), (tmaxx-tminx, tmaxy-tminy)))
|
|
|
|
with tempfile.TemporaryDirectory() as tmpdir:
|
|
img_file = path.join(tmpdir, 'target.png')
|
|
|
|
status_print('Combining keepout composite')
|
|
fg, bg = gerber.render.RenderSettings((1, 1, 1)), gerber.render.RenderSettings((0, 0, 0))
|
|
ctx = GerberCairoContext(scale=scale)
|
|
status_print(' * outline')
|
|
ctx.render_layer(outline, settings=fg, bgsettings=bg)
|
|
status_print(' * target layer')
|
|
ctx.render_layer(target, settings=fg, bgsettings=bg)
|
|
for fn, sub in subtract_gerber:
|
|
status_print(' * extra layer', os.path.basename(fn))
|
|
layer = gerber.loads(sub)
|
|
ctx.render_layer(layer, settings=fg, bgsettings=bg)
|
|
status_print('Rendering keepout composite')
|
|
ctx.dump(img_file)
|
|
|
|
original_img = cv2.imread(img_file, cv2.IMREAD_GRAYSCALE)
|
|
|
|
status_print('Expanding keepout composite')
|
|
r = 1+2*max(1, int(extend_overlay_r_mil/1000 * scale))
|
|
target_img = cv2.blur(original_img, (r, r))
|
|
_, target_img = cv2.threshold(target_img, 255//(1+r), 255, cv2.THRESH_BINARY)
|
|
|
|
status_print('Thresholding source image')
|
|
qr = 1+2*max(1, int(extend_picture_r_mil/1000 * scale))
|
|
source_img = source_img[::-1]
|
|
_, source_img = cv2.threshold(source_img, 127, 255, cv2.THRESH_BINARY)
|
|
debugimg(source_img, 'thresh')
|
|
|
|
status_print('Padding source image')
|
|
tgth, tgtw = target_img.shape
|
|
padded_img = np.zeros(shape=target_img.shape, dtype=source_img.dtype)
|
|
offx = int((minx-tminx if tminx < minx else 0)*scale)
|
|
offy = int((miny-tminy if tminy < miny else 0)*scale)
|
|
offx += int(grbw*scale - imgw) // 2
|
|
offy += int(grbh*scale - imgh) // 2
|
|
endx, endy = min(offx+imgw, tgtw), min(offy+imgh, tgth)
|
|
print('off', (offx, offy), 'end', (endx, endy), 'img', (imgw, imgh), 'tgt', (tgtw, tgth))
|
|
padded_img[offy:endy, offx:endx] = source_img[:endy-offy, :endx-offx]
|
|
debugimg(padded_img, 'padded')
|
|
debugimg(target_img, 'target')
|
|
|
|
status_print('Masking source image')
|
|
out_img = (np.multiply((padded_img/255.0), (target_img/255.0) * -1 + 1) * 255).astype(np.uint8)
|
|
|
|
debugimg(out_img, 'multiplied')
|
|
|
|
status_print('Calculating contour lines')
|
|
plot_contours(out_img,
|
|
target,
|
|
offx=(0, 0),
|
|
scale=scale,
|
|
status_print=lambda *args: status_print(' ', *args))
|
|
|
|
status_print('Generating output gerber')
|
|
from gerber.render import rs274x_backend
|
|
ctx = rs274x_backend.Rs274xContext(target.settings)
|
|
target.render(ctx)
|
|
out = ctx.dump().getvalue()
|
|
status_print('Done.')
|
|
return out
|
|
|
|
|
|
def plot_contours(
|
|
img:np.ndarray,
|
|
layer:gerber.rs274x.GerberFile,
|
|
offx:tuple,
|
|
scale:float,
|
|
debug=lambda *args:None,
|
|
status_print=lambda *args:None):
|
|
imgh, imgw = img.shape
|
|
|
|
# Extract contours
|
|
status_print('Extracting contours')
|
|
img_cont_out, contours, hierarchy = cv2.findContours(img, cv2.RETR_TREE, cv2.CHAIN_APPROX_TC89_KCOS)
|
|
|
|
aperture = list(layer.apertures)[0]
|
|
|
|
from gerber.primitives import Line, Region
|
|
status_print('offx', offx, 'scale', scale)
|
|
|
|
xbias, ybias = offx
|
|
def map(coord):
|
|
x, y = coord
|
|
return (x/scale + xbias, y/scale + ybias)
|
|
def contour_lines(c):
|
|
return [ Line(map(start), map(end), aperture, level_polarity='dark', units=layer.settings.units)
|
|
for start, end in zip(c, np.vstack((c[1:], c[:1]))) ]
|
|
|
|
done = []
|
|
process_stack = [-1]
|
|
next_process_stack = []
|
|
parents = [ (i, first_child != -1, parent) for i, (_1, _2, first_child, parent) in enumerate(hierarchy[0]) ]
|
|
is_dark = True
|
|
status_print('Converting contours to gerber primitives')
|
|
with tqdm.tqdm(total=len(contours)) as progress:
|
|
while len(done) != len(contours):
|
|
for i, has_children, parent in parents[:]:
|
|
if parent in process_stack:
|
|
contour = contours[i]
|
|
polarity = 'dark' if is_dark else 'clear'
|
|
debug('rendering {} with parent {} as {} with {} vertices'.format(i, parent, polarity, len(contour)))
|
|
debug('process_stack is', process_stack)
|
|
debug()
|
|
layer.primitives.append(Region(contour_lines(contour[:,0]), level_polarity=polarity, units=layer.settings.units))
|
|
if has_children:
|
|
next_process_stack.append(i)
|
|
done.append(i)
|
|
parents.remove((i, has_children, parent))
|
|
progress.update(1)
|
|
debug('skipping to next level')
|
|
process_stack, next_process_stack = next_process_stack, []
|
|
is_dark = not is_dark
|
|
debug('done', done)
|
|
|
|
# Utility foo
|
|
# ===========
|
|
|
|
def find_gerber_in_dir(dir_path, file_or_ext):
|
|
lname = path.join(dir_path, file_or_ext)
|
|
if path.isfile(lname):
|
|
with open(lname, 'r') as f:
|
|
return lname, f.read()
|
|
|
|
contents = os.listdir(dir_path)
|
|
exts = file_or_ext.split(',')
|
|
for entry in contents:
|
|
if any(entry.lower().endswith(ext.lower()) for ext in exts):
|
|
lname = path.join(dir_path, entry)
|
|
if not path.isfile(lname):
|
|
continue
|
|
with open(lname, 'r') as f:
|
|
return lname, f.read()
|
|
|
|
raise ValueError('Cannot find file or suffix "{}" in dir {}'.format(file_or_ext, dir_path))
|
|
|
|
def find_gerber_in_zip(zip_path, file_or_ext):
|
|
with zipfile.ZeipFile(zip_path, 'r') as lezip:
|
|
nlist = [ item.filename for item in zipin.infolist() ]
|
|
if file_or_ext in nlist:
|
|
return file_or_ext, lezip.read(file_or_ext)
|
|
|
|
exts = file_or_ext.split(',')
|
|
for n in nlist:
|
|
if any(n.lower().endswith(ext.lower()) for ext in exts):
|
|
return n, lezip.read(n)
|
|
|
|
raise ValueError('Cannot find file or suffix "{}" in zip {}'.format(file_or_ext, dir_path))
|
|
|
|
def replace_file_in_zip(zip_path, filename, contents):
|
|
with tempfile.TemporaryDirectory() as tmpdir:
|
|
tempname = path.join(tmpdir, 'out.zip')
|
|
with zipfile.ZipFile(zip_path, 'r') as zipin, zipfile.ZipFile(tempname, 'w') as zipout:
|
|
for item in zipin.infolist():
|
|
if item.filename != filename:
|
|
zipout.writestr(item, zipin.read(item.filename))
|
|
zipout.writestr(filename, contents)
|
|
shutil.move(tempname, zip_path)
|
|
|
|
def paste_image_file(zip_or_dir, target, outline, source_img, subtract=[], status_print=lambda *args:None, debugdir=None):
|
|
if path.isdir(zip_or_dir):
|
|
tname, target = find_gerber_in_dir(zip_or_dir, target)
|
|
status_print('Target layer file {}'.format(os.path.basename(tname)))
|
|
oname, outline = find_gerber_in_dir(zip_or_dir, outline)
|
|
status_print('Outline layer file {}'.format(os.path.basename(oname)))
|
|
subtract = [ (fn, layer) for fn, layer in (find_gerber_in_dir(zip_or_dir, elem) for elem in subtract) ]
|
|
|
|
out = paste_image(target, outline, source_img, subtract, debugdir=debugdir, status_print=status_print)
|
|
|
|
if not tname.endswith('.bak'):
|
|
shutil.copy(tname, tname+'.bak')
|
|
with open(tname, 'w') as f:
|
|
f.write(out)
|
|
else:
|
|
with open(tname[:-4], 'w') as f:
|
|
f.write(out)
|
|
elif zipfile.is_zipfile(zip_or_dir):
|
|
_fn, outline = find_gerber_in_zip(zip_or_dir, outline)
|
|
subtract = [ (fn, layer) for fn, layer in (find_gerber_in_zip(zip_or_dir, elem) for elem in subtract) ]
|
|
|
|
out = paste_image(target, outline, source_img, subtract, debugdir=debugdir, status_print=status_print)
|
|
replace_file_in_zip(zip_or_dir, tname, out)
|
|
else:
|
|
raise ValueError('{} does not look like either a folder or a zip file')
|
|
|
|
# Command line interface
|
|
# ======================
|
|
|
|
if __name__ == '__main__':
|
|
import argparse
|
|
parser = argparse.ArgumentParser()
|
|
parser.add_argument('-b', '--bottom', action='store_true', help='Default to bottom layer file names')
|
|
parser.add_argument('-t', '--target', help='Target layer. Filename or extension in target folder/zip')
|
|
parser.add_argument('-s', '--subtract', nargs='*', help='Layer to subtract. Filename or extension in target folder/zip')
|
|
parser.add_argument('-o', '--outline', default='.GKO,.GM1', help='Target outline layer. Filename or extension in target folder/zip')
|
|
parser.add_argument('-d', '--debug', type=str, help='Directory to place debug files into')
|
|
parser.add_argument('zip_or_dir', default='.', nargs='?', help='Optional folder or zip with target files')
|
|
parser.add_argument('source', help='Source image')
|
|
args = parser.parse_args()
|
|
|
|
if not args.target:
|
|
args.target = '.GBO.bak,.GBO' if args.bottom else '.GTO.bak,.GTO'
|
|
if not args.subtract:
|
|
args.subtract = ['.GBS', '.TXT'] if args.bottom else ['.GTS', '.TXT']
|
|
|
|
source_img = cv2.imread(args.source, cv2.IMREAD_GRAYSCALE)
|
|
paste_image_file(
|
|
args.zip_or_dir,
|
|
args.target,
|
|
args.outline,
|
|
source_img,
|
|
args.subtract,
|
|
status_print=lambda *args: print(*args, flush=True),
|
|
debugdir=args.debug)
|
|
|