def gerberToPNG(filename, png, pixel_mm=0.1):
"""
Convert to png.
Return pixel size in mm.
"""
try:
import gerber
except Exception as e:
if 'hull' in str(e).lower():
raise Exception('Module pyhull not found. Try "pip install pyhull"?')
raise Exception('The gerber module can be found at https://github.com/curtacircuitos/pcb-tools.')
try:
from gerber.render import GerberCairoContext
except Exception as e:
if 'cairo' in str(e).lower():
raise Exception('Failed to load gerber.render. Do you have the py2cairo package, which provides the cairo module?')
raise e
# Read gerber and Excellon files
data = gerber.read(filename)
data.to_metric()
# Rendering context
ctx = GerberCairoContext(scale=1.0/pixel_mm) # Scale is pixels/mm
# Create SVG image
data.render(ctx)
ctx.dump(png)
return png, np.mean(data.size) / np.mean(ctx.size_in_pixels)
def is_gerber_file(path):
try:
gerber.read(path)
except IOError:
return False
except Exception as e:
logger.error(f'错误信息为：{e}')
return False
return True
def get_layers(self):
if self._layers:
return self._layers
for filename in os.listdir(self._path):
full_path = os.path.join(
self._path,
filename,
)
if not os.path.isfile(full_path):
continue
try:
layer = gerber.read(full_path)
layer_type = self.detect_layer_type(filename, layer)
self._layers[layer_type] = layer
logger.debug("Loaded %s", full_path)
except UnknownLayerType:
logger.error("Could not identify layer type for %s.",
full_path)
except gerber.common.ParseError:
logger.debug("Unable to parse %s; probably not a gerber.",
full_path)
return self._layers
def gerberToPNG(filename, png, pixel_mm=0.1):
"""
Convert to png.
Return pixel size in mm.
"""
try:
import gerber
except Exception as e:
if 'hull' in str(e).lower():
raise Exception(
'Module pyhull not found. Try "pip install pyhull"?')
raise Exception(
'The gerber module can be found at https://github.com/curtacircuitos/pcb-tools.'
)
try:
from gerber.render.cairo_backend import GerberCairoContext
except Exception as e:
if 'cairo' in str(e).lower():
raise Exception(
'Failed to load gerber.render. Do you have the py2cairo package, which provides the cairo module?'
)
raise e
# Read gerber and Excellon files
data = gerber.read(filename)
data.to_metric()
# Rendering context
ctx = GerberCairoContext(scale=1.0 / pixel_mm) # Scale is pixels/mm
# Create SVG image
data.render(ctx)
ctx.dump(png)
return png, np.mean(data.size) / np.mean(ctx.size_in_pixels)
def load(self, path) -> gcp.shapes.ShapesCollection:
geber_layer = gerber.read(path)
return gcp.shapes.ShapesCollection(
list(
filter(None, [
self._cvt_shape(geber_primitive)
for geber_primitive in geber_layer.primitives
])))
def read_s8tp_file(file_path, img_name='test-gerber.png'):
print('transfer gerber to image...')
gerber_obj = gerber.read(file_path)
ctx = GerberCairoContext()
gerber_obj.render(ctx)
ctx.dump(img_name)
# img_ram = cv2.imread('test-gerber.png')
# os.remove('test-gerber.png')
return img_name
def _read_gbr(self, filename, layer):
'''
Read a Gerber file.
'''
# Parse gerber file
gbr = gerber.read(filename)
# Convert to metric units
gbr.to_metric()
# read file contents
self._read_gbr_recurse(gbr.primitives, layer)
def get_drills_of_dia(drill_file_path, diameter, normalize=True):
drills = gerber.read(drill_file_path)
tool = None
for t in drills.tools:
if drills.tools[t].diameter == diameter:
tool = drills.tools[t]
if not tool:
raise Exit(f'Tool for diameter {diameter} not found!')
hits = [hit for hit in drills.hits if hit.tool is tool]
for hit in hits:
hit.to_metric()
coords = [hit.position for hit in hits]
return normalize_coords(coords)
def readGerber(file):
top_copper = gerber.read(file).statements
polygons = []
LastStmtIndex = 0
#Find mode statement
for cnt in range(len(top_copper)):
Stmt = str(top_copper[cnt])
if re.search(MODE, Stmt) != None:
setMode(Stmt)
LaststmtIndex = cnt
break
if mode == "":
raise Exception("FileFormat", "No Unit mode Statement found")
#Find scale factors
for cnt in range(LastStmtIndex, len(top_copper)):
Stmt = str(top_copper[cnt])
if re.search(SCALE, Stmt) != None:
setScale(Stmt)
LaststmtIndex = cnt
break
#Find polygons factors
for cnt in range(LastStmtIndex, len(top_copper)):
Stmt = str(top_copper[cnt])
if re.search(RMStmtStart, Stmt) != None:
PolyStmt = []
i = 0
while cnt + i < len(top_copper):
Stmt = str(top_copper[cnt + i])
if re.search(RMStmtStop, Stmt) != None:
LaststmtIndex = cnt + i
poly = new_Polygon(PolyStmt)
polygons.append(poly)
break
else:
PolyStmt.append(Stmt)
i += 1
return polygons
def gerberToPNG(filename, png, pixel_mm=0.1):
"""
Convert to png.
Return pixel size in mm.
"""
import gerber
from gerber.render import GerberCairoContext
# Read gerber and Excellon files
data = gerber.read(filename)
data.to_metric()
# Rendering context
ctx = GerberCairoContext(scale=1.0/pixel_mm) # Scale is pixels/mm
# Create SVG image
data.render(ctx)
ctx.dump(png)
return png, np.mean(data.size) / np.mean(ctx.size_in_pixels)
def __init__(self, filename):
self.gbr = gerber.read(filename)
self._populateShapelyPrimitives()
union = sop.unary_union(self.shapelyPrimitives)
self.closedPolygons = [geo.polygon.orient(poly) for poly in union]
self.polygonLines = []
self.pads = []
self.tolerance = 1e-6
for poly in self.closedPolygons:
boundary = poly.boundary
for i in range(len(boundary.coords) - 1):
self.polygonLines.append(
geo.LineString(
[boundary.coords[i], boundary.coords[i + 1]]))
def gerberToPNG(filename, png, pixel_mm=0.1):
"""
Convert to png.
Return pixel size in mm.
"""
import gerber
from gerber.render import GerberCairoContext
# Read gerber and Excellon files
data = gerber.read(filename)
data.to_metric()
# Rendering context
ctx = GerberCairoContext(scale=1.0 / pixel_mm) # Scale is pixels/mm
# Create SVG image
data.render(ctx)
ctx.dump(png)
return png, np.mean(data.size) / np.mean(ctx.size_in_pixels)
def get_all_primitives_from_gerber(gerber_file):
parsed_gerber = gerber.read(gerber_file)
return parsed_gerber.primitives
This example demonstrates the use of pcb-tools with cairo to render a composite image from a set of gerber files. Each layer is loaded and drawn using a GerberCairoContext. The color and opacity of each layer can be set individually. Once all thedesired layers are drawn on the context, the context is written to a .png file. """ import os from gerber import read from gerber.render import GerberCairoContext GERBER_FOLDER = os.path.abspath(os.path.join(os.path.dirname(__file__), 'gerbers')) # Open the gerber files copper = read(os.path.join(GERBER_FOLDER, 'copper.GTL')) mask = read(os.path.join(GERBER_FOLDER, 'soldermask.GTS')) silk = read(os.path.join(GERBER_FOLDER, 'silkscreen.GTO')) drill = read(os.path.join(GERBER_FOLDER, 'ncdrill.DRD')) # Create a new drawing context ctx = GerberCairoContext() # Draw the copper layer copper.render(ctx) # Set opacity and color for soldermask layer ctx.alpha = 0.6 ctx.color = (0.2, 0.2, 0.75)
import gerber
from gerber.render import GerberCairoContext
# Read gerber and Excellon files
dim = gerber.read('tty.dim')
# Rendering context
ctx = GerberCairoContext()
# Create SVG image
ctx.color = (0, 1, 0)
dim.render(ctx, "tty_dim.svg")
print(ctx)
ctx.dump("foo.svg")
gre.filename
gre.size
help(pl.top_layers)
help(pcb.drill_layers)
for x in pcb.board_bounds:
print(x)
help(gerber)
import os
os.path.basename('/oo/ee/eue.qu')
file = gerber.read('/home/roman/repos/Modules/sensors/LIGHTNING01A/hw/cam_profi/LIGHTNING01A-B.Cu.gbr')
file = gerber.read('/home/roman/repos/Modules/sensors/LIGHTNING01A/hw/cam_profi/LIGHTNING01A.drl')
file.offset(10,10)
file.write('/home/roman/repos/Modules/sensors/LIGHTNING01A/hw/cam_profi/aaa/a.drl')
file.bounding_box
file.bounds
help(file)
help(file)
file.statements[40].y
file.bounding_box
This example demonstrates the use of pcb-tools with cairo to render a composite
image from a set of gerber files. Each layer is loaded and drawn using a
GerberCairoContext. The color and opacity of each layer can be set individually.
Once all thedesired layers are drawn on the context, the context is written to
a .png file.
"""
import os
from gerber import read
from gerber.render import GerberCairoContext
GERBER_FOLDER = os.path.abspath(
os.path.join(os.path.dirname(__file__), 'gerbers'))
# Open the gerber files
copper = read(os.path.join(GERBER_FOLDER, 'copper.GTL'))
mask = read(os.path.join(GERBER_FOLDER, 'soldermask.GTS'))
silk = read(os.path.join(GERBER_FOLDER, 'silkscreen.GTO'))
drill = read(os.path.join(GERBER_FOLDER, 'ncdrill.DRD'))
# Create a new drawing context
ctx = GerberCairoContext()
# Draw the copper layer
copper.render(ctx)
# Set opacity and color for soldermask layer
ctx.alpha = 0.6
ctx.color = (0.2, 0.2, 0.75)
# Draw the soldermask layer
# drl file TSP path optimizer
#
import sys
import math
import gerber
from tsp_solver.greedy import solve_tsp
# https://github.com/dmishin/tsp-solver
# https://github.com/curtacircuitos/pcb-tools
if len(sys.argv) != 2:
print "usage: drl-optimize.py [drill-file.drl]"
sys.exit(0)
f = gerber.read(sys.argv[1])
#print(f.report())
cnt = {}
l = {}
t = {}
for a,b in f.hits:
n = a.number
if n not in cnt.keys():
cnt[n] = 0
l[n] = []
t[n] = (a,b)
cnt[n] += 1
l[n].append(b)
# write as gerber. not so difficult, right?
statements = []
settings = dict(
notation='',
units='mm',
zero_suppression=False,
zeros=False,
format='',
angle_units='radian')
primitives = [] # [Line((0,0), (10,10)),]
filename = 'output.GML'
# fill primitives
for p in parsed_paths:
for pp in p:
new_line = Line(
(pp.start.real, pp.start.imag), (pp.end.real, pp.end.imag))
primitives.append(new_line)
test_gerber = gerber.read('test/test.GML') # cannibalize test file :-)
import pdb; pdb.set_trace()
# apparently, the result is the same as test.GML (primitives are not used...)
g = GerberFile(
test_gerber.statements,
test_gerber.settings,
primitives)
#import pdb; pdb.set_trace()
g.write('joee.GML')
#import pdb; pdb.set_trace()
def load_nc_drill(name):
# Read gerber and Excellon files
ncdata = gerber.read(name)
#assume 3d printer to be metric
ncdata.to_metric()
return ncdata
def get_info_from_gerber(gerber_file):
parsed_gerber = gerber.read(gerber_file)
return parsed_gerber
# Created by mqgao at 2019/3/19
"""
Feature: #Enter feature name here
# Enter feature description here
Scenario: #Enter scenario name here
# Enter steps here
Test File Location: # Enter
"""
import gerber
import os
from gerber.render import GerberCairoContext
gm2_dir = '/Users/mqgao/PycharmProjects/auto-pcb-ii/tokenization/gerber_tokenization/data/gerbers'
for i, f in enumerate(os.listdir(gm2_dir)):
print(i)
gerber_obj = gerber.read(os.path.join(gm2_dir, f))
ctx = GerberCairoContext()
gerber_obj.render(ctx)
ctx.dump('test-gerber-{}.png'.format(i))
print('generate end!')
'tsp-solver can be downloaded from:\n'
' http://github.com/dmishin/tsp-solver.\n'
'=================================================================')
sys.exit(0)
if __name__ == '__main__':
# Get file name to open
if len(sys.argv) < 2:
fname = 'gerbers/shld.drd'
else:
fname = sys.argv[1]
# Read the excellon file
f = gerber.read(fname)
positions = {}
tools = {}
hit_counts = f.hit_count()
oldpath = sum(f.path_length().values())
#Get hit positions
for hit in f.hits:
tool_num = hit.tool.number
if tool_num not in positions.keys():
positions[tool_num] = []
positions[tool_num].append(hit.position)
hits = []
import os
import gerber
import sys
import json
from gerber.render import GerberCairoContext
from gerber.utils import parse_gerber_value
from gerber.rs274x import GerberParser
copper = gerber.read('input.GTL') # argument string is the filename
# Rendering context
ctx = GerberCairoContext()
# Create PNG
copper.render(ctx)
# js = GerberParser.parse('input.GTL')
# print(js)
# # with open('data.json', 'w') as outfile:
# # json.dump(js, outfile)
# # with open('data.json') as f:
# # data = json.load(f)
# # print(data[0])
ctx.dump(os.path.join(os.path.dirname(__file__), 'output.png'))
#print("Saved")
exit()
def _load_file(self):
"""
Loads a single file to be turned into an array
Input should be a zipfile with all the layers included in it
:return:
"""
self.logger.info("Please input path to gerber file")
self.gerber_file_path = Path(input("File: ").strip().replace("\\", ""))
# self.gerber_file_path = Path(self._temp_path)
_found_profile_file = None
self.logger.info("Loading file: {}".format(self.gerber_file_path))
if self.gerber_file_path.suffix == ".zip":
with ZipFile(self.gerber_file_path, 'r') as zip_file:
for file in zip_file.namelist():
_file_name = Path(file).name
# First check that the file is not in the ignored list
if True not in [
part.startswith(_file_name)
for part in self.ignored_file_starts
]:
self.logger.debug(
"File from zip archive: {}".format(_file_name))
self.gerber_file_list.append(_file_name)
if True in [
ext in _file_name
for ext in self.profile_file_extensions
]:
# Got a profile file, now we can have a look at the max bounds of the file
self.logger.debug("Found a profile file")
self.logger.info(
"Profile file name: {}".format(_file_name))
_found_profile_file = file
# Extract profile file to temp dir
zip_file.extract(file, str(self.temp_path))
break
else:
self._exit_error("Can't load file, needs to be a .zip.")
if _found_profile_file is not None:
read_pcb = gerber.read(str(self.temp_path / _found_profile_file))
# Check what units the gerber file is in
_current_units = read_pcb.units
if _current_units == "metric":
self.logger.info(
"PCB units are metric, no conversion required")
elif _current_units == "inch":
self.logger.info(
"PCB units are imperial, converting to metric")
read_pcb.to_metric()
# bounds is a tuple of the form ((min_x, max_x), (min_y, max_y))
pcb_bounds = read_pcb.bounds
self.pcb_info["size_x"] = round(
pcb_bounds[0][1] - pcb_bounds[0][0], 6)
self.pcb_info["size_y"] = round(
pcb_bounds[1][1] - pcb_bounds[1][0], 6)
# Work out surface area in dm2
_surface_area = (self.pcb_info["size_x"] *
self.pcb_info["size_y"]) / 10000
self.pcb_info["surface_area"] = round(_surface_area, 6)
# origin is how far away the bottom left corner of the pcb is to the 'origin' of the board
# need to flip the sign to get the coord of the origin wrt the bl corner
self.pcb_info["origin_x"] = round(pcb_bounds[0][0] * -1, 6)
self.pcb_info["origin_y"] = round(pcb_bounds[1][0] * -1, 6)
# Get number of layers so we can make the panel frame properly
num_layers = self._determine_number_of_layers()
num_layers_correct = input(
f"Number of layers found - {num_layers}, is this correct? (*Y/N): "
) or "Y"
if num_layers_correct.upper() == "Y":
self.pcb_info["num_copper_layers"] = num_layers
elif num_layers_correct.upper() == "N":
num_layers = int(
input("Please enter number of layers in PCB: "))
self.pcb_info["num_copper_layers"] = num_layers
self.logger.info("PCB info: {}".format(self.pcb_info))
else:
self._exit_error(
"No profile file found in zip, does it have the extension .gko?"
)
if len(sys.argv) >= 2:
if len(sys.argv) == 3:
if sys.argv[2] == 'fast':
algorithm = 0
elif sys.argv[2] == 'opt-2':
algorithm = 1
else:
print 'Invalid algorithm. Options are "fast" or "opt-2". "fast" is the default, if no algorithm is defined'
print 'Exiting the script...'
sys.exit(0)
else:
algorithm = 0
print "Loading Excellon file..."
in_filename = sys.argv[1]
f = gerber.read(in_filename)
points = []
for p in f.hits:
points.append(p.position)
if algorithm == 1:
print "Searching the best route for %d points using algorithm opt-2. This will take some time..." % (
len(points))
route = two_opt(np.array(points), IMPROVEMENT_THRESHOLD, in_filename)
else:
print "Searching a good route for %d points using the fast algorithm (This may be not the shortest route)..." % (
len(points))
route = fast(points, IMPROVEMENT_THRESHOLD, in_filename)
else:
print '''
'This example requires tsp-solver be installed in order to run.\n\n'
'tsp-solver can be downloaded from:\n'
' http://github.com/dmishin/tsp-solver.\n'
'=================================================================')
sys.exit(0)
if __name__ == '__main__':
# Get file name to open
if len(sys.argv) < 2:
fname = 'gerbers/shld.drd'
else:
fname = sys.argv[1]
# Read the excellon file
f = gerber.read(fname)
positions = {}
tools = {}
hit_counts = f.hit_count()
oldpath = sum(f.path_length().values())
#Get hit positions
for hit in f.hits:
tool_num = hit.tool.number
if tool_num not in positions.keys():
positions[tool_num] = []
positions[tool_num].append(hit.position)
hits = []