def combine_copper_only(gtl_file, gbl_file, out_copper_only_top,
out_copper_only_bottom):
copper = load_layer(gtl_file)
ctx = GerberCairoContext()
ctx.render_layer(copper)
ctx.dump(os.path.join(os.path.dirname(__file__), out_copper_only_top))
ctx = GerberCairoContext()
copper_bottom = load_layer(gbl_file)
ctx.render_layer(copper_bottom, bounds=copper.bounds)
ctx.dump(os.path.join(os.path.dirname(__file__), out_copper_only_bottom))
def combine(gtl_file, gts_file, gto_file, txt_file, gtp_file, gbl_file,
gbs_file, basedir):
# Open the gerber files
copper = load_layer(gtl_file)
mask = load_layer(gts_file)
silk = load_layer(gto_file)
drill = load_layer(txt_file)
placement = load_layer(gtp_file)
# Create a new drawing context
ctx = GerberCairoContext()
# Draw the copper layer. render_layer() uses the default color scheme for the
# layer, based on the layer type. Copper layers are rendered as
# Draw the soldermask layer
ctx.render_layer(copper)
ctx.render_layer(mask)
ctx.render_layer(silk,
settings=RenderSettings(color=theme.COLORS['white'],
alpha=0.85))
ctx.render_layer(drill)
# Write output to png file
ctx.dump(os.path.join(basedir, "top.png"))
# Load the bottom layers
copper = load_layer(gbl_file)
copper_top = load_layer(gtl_file)
mask = load_layer(gbs_file)
# Clear the drawing
ctx = GerberCairoContext()
from gerber.rs274x import read, GerberFile
# Render bottom layers
ctx.render_layer(copper, bounds=copper_top.bounds)
ctx.render_layer(mask)
ctx.render_layer(drill, settings=RenderSettings(mirror=True))
# Write png file
ctx.dump(os.path.join(basedir, "bottom.png"))
copper = load_layer(gtl_file)
ctx = GerberCairoContext()
ctx.render_layer(copper)
ctx.dump(os.path.join(basedir, "top-copper.png"))
ctx = GerberCairoContext()
copper_bottom = load_layer(gbl_file)
ctx.render_layer(copper_bottom, bounds=copper.bounds)
ctx.dump(os.path.join(basedir, "bottom-copper.png"))
def generate_template(
silk,
mask,
copper,
outline,
drill,
image,
process_resolution: float = 6, # mil
resolution_oversampling: float = 10, # times
status_print=lambda *args: None):
silk, mask, copper, outline, *drill = map(
gerber.load_layer_data, [silk, mask, copper, outline, *drill])
silk.layer_class = 'topsilk'
mask.layer_class = 'topmask'
copper.layer_class = 'top'
outline.layer_class = 'outline'
f = 1.0 if outline.cam_source.units == 'metric' else 25.4
scale = (1000 /
process_resolution) / 25.4 * resolution_oversampling * f # dpmm
bounds = outline.cam_source.bounding_box
# Create a new drawing context
ctx = GerberCairoContext(scale=scale)
ctx.render_layer(outline, bounds=bounds)
ctx.render_layer(copper, bounds=bounds)
ctx.render_layer(mask, bounds=bounds)
ctx.render_layer(silk, bounds=bounds)
for dr in drill:
ctx.render_layer(dr, bounds=bounds)
ctx.dump(image)
def __init__(self, device_cfg, output=None):
self.device_cfg = device_cfg
self.scale = self.device_cfg['size_px']['w'] / self.device_cfg[
'size_mm']['w']
self.exp_test_start = self.EXP_TEST_START
self.exp_test_interval = self.EXP_TEST_INTERVAL
self.exp_test_samples = self.EXP_TEST_SAMPLES
self.exp_test_tmp_dir = None
self.exposure_time = self.DEFAULT_EXPOSURE_TIME
self.gbr = None
self.drl = None
self.output = output
if not output:
self.output = self.DEFAULT_OUTPUT
self.payload_ctx = GerberCairoContext(scale=self.scale)
self.white = RenderSettings(color=theme.COLORS['white'])
self.black = RenderSettings(color=theme.COLORS['black'])
self.pcb_width = None
self.pcb_height = None
self.photon_template = None
if device_cfg['photon_template'] != 'built-in':
tpl_path = 'data/{}'.format(device_cfg['photon_template'])
self.photon_template = resource_filename('pcb_msla', tpl_path)
def main():
setup()
GERBER_FOLDER = os.path.abspath(
os.path.join(os.path.dirname(__file__), INPUT_DIR))
# Create a new drawing context
ctx = GerberCairoContext()
# Create a new PCB instance
# pcb = PCB.from_directory(GERBER_FOLDER)
outline = load_layer(INPUT_DIR + 'axiom_beta_mixed_panel.boardoutline.ger')
outline.layer_class = "outline"
top_layer = load_layer(INPUT_DIR + 'axiom_beta_mixed_panel.toplayer.ger')
top_layer.layer_class = "toppaste"
# top_soldermask_layer = load_layer(INPUT_DIR + 'axiom_beta_mixed_panel.topcream.ger')
# top_soldermask_layer.layer_class = "toppaste"
top_silkscreen_layer = load_layer(
INPUT_DIR + 'axiom_beta_mixed_panel.topsilkscreen.ger')
top_silkscreen_layer.layer_class = "topsilk"
drill = load_layer(INPUT_DIR + 'axiom_beta_mixed_panel.drills.xln')
# Render PCB top view
ctx.render_layers({outline, top_layer, top_silkscreen_layer},
OUTPUT_DIR + 'pcb_top.png',
theme.THEMES['OSH Park'],
verbose=True,
max_width=4000,
max_height=3000)
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 generate_previews(fab_output_path, preview_output_path):
def read(pattern):
files = glob(os.path.join(fab_output_path, pattern))
if not files:
print("WARNING: Nothing found matching %s" % pattern)
return None
return gerber.load_layer(files[0])
def save(name):
path = os.path.join(preview_output_path, "%s.png" % name)
print("Saving preview to %s" % path)
ctx.dump(path)
def render(pattern, **kw):
layer = read(pattern)
if layer is None:
print("Not rendering %s" % pattern)
return
ctx.render_layer(layer, verbose=True, **kw)
# Rendering context
ctx = GerberCairoContext(scale=10)
ctx.color = (80. / 255, 80 / 255., 154 / 255.)
ctx.drill_color = ctx.color
# Edges
render("*.gm1")
# Copper
render("*.gtl")
# Mask
render("*.gts")
# Silk
render("*.gto",
settings=RenderSettings(color=theme.COLORS['white'], alpha=0.85))
# Drills
render("*.drl")
save("pcb-front")
ctx.clear()
# Edges
render("*.gm1")
# Copper
render("*.gbl")
# Mask
render("*.gbs")
# Silk
render(
"*.gbo",
settings=RenderSettings(
color=theme.COLORS['white'],
alpha=0.85,
mirror=
True, # for some reason this, but not the other bottom layer files, needs to be flipped horizontally
))
# Drills
render("*.drl")
save("pcb-back")
def final(copper, mask, drill, colour, name, silk=None):
new_settings = RenderSettings(color=colour, alpha=0.8)
new = GerberCairoContext()
new.render_layer(copper, settings=new_settings)
new.render_layer(mask, settings=new_settings)
if (silk != None):
new.render_layer(silk)
new.render_layer(drill)
new.dump(os.path.join(BASE_DIR, name))
def render_devel_view(self, output_filename=None, quick=False, nox=False):
output_filename = '{0}.devel.png'.format(output_filename)
ctx = GerberCairoContext()
ctx.color = theme.COLORS['fr-4']
ctx.alpha = 1.0
outline = read(self.layers.outline)
outline.render(ctx)
ctx.color = self.copper_color
bottompaste = read(self.layers.bottompaste)
bottompaste.render(ctx)
ctx.alpha = 0.9
ctx.color = self.silk_color
bottomsilk = read(self.layers.bottomsilk)
bottomsilk.render(ctx)
num_copper_layers = len(self.layers.internal)
if self.layers.top is not None:
num_copper_layers += 1
if self.layers.bottom is not None:
num_copper_layers += 1
ctx.color = self.layer_colors[num_copper_layers - 1]
bottom = read(self.layers.bottom)
bottom.render(ctx)
ctx.alpha = 0.5
for idx, l in enumerate(self.layers.internal):
layer = read(l)
ctx.color = self.layer_colors[num_copper_layers - 2 - idx]
layer.render(ctx)
ctx.alpha = 0.9
ctx.color = self.layer_colors[0]
top = read(self.layers.top)
top.render(ctx)
ctx.color = self.silk_color
topsilk = read(self.layers.topsilk)
topsilk.render(ctx)
ctx.color = self.copper_color
toppaste = read(self.layers.toppaste)
toppaste.render(ctx)
ctx.color = theme.COLORS['black']
ctx.alpha = 1.0
drill = read(self.layers.drill)
drill.render(ctx)
ctx.dump(output_filename)
def render_gerbers_to_image(*gerbers, scale, bounds=None):
with tempfile.TemporaryDirectory() as tmpdir:
img_file = path.join(tmpdir, 'target.png')
fg, bg = gerber.render.RenderSettings(
(1, 1, 1)), gerber.render.RenderSettings((0, 0, 0))
ctx = GerberCairoContext(scale=scale)
for grb in gerbers:
ctx.render_layer(grb, settings=fg, bgsettings=bg, bounds=bounds)
ctx.dump(img_file)
# Vertically flip exported image to align coordinate systems
return cv2.imread(img_file, cv2.IMREAD_GRAYSCALE)[::-1, :]
def generate_mask(outline, target, scale, bounds, debugimg, status_print,
extend_overlay_r_mil, subtract_gerber):
# Render all gerber layers whose features are to be excluded from the target image, such as board outline, the
# original silk layer and the solder paste layer to binary images.
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, bounds=bounds)
status_print(' * target layer')
ctx.render_layer(target, settings=fg, bgsettings=bg, bounds=bounds)
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, bounds=bounds)
status_print('Rendering keepout composite')
ctx.dump(img_file)
# Vertically flip exported image
original_img = cv2.imread(img_file, cv2.IMREAD_GRAYSCALE)[::-1, :]
f = 1 if outline.units == 'inch' else 25.4
r = 1 + 2 * max(1, int(extend_overlay_r_mil / 1000 * f * scale))
status_print('Expanding keepout composite by', r)
# Extend image by a few pixels and flood-fill from (0, 0) to mask out the area outside the outermost outline
# This ensures no polygons are generated outside the board even for non-rectangular boards.
border = 10
outh, outw = original_img.shape
extended_img = np.zeros((outh + 2 * border, outw + 2 * border),
dtype=np.uint8)
extended_img[border:outh + border, border:outw + border] = original_img
debugimg(extended_img, 'outline')
cv2.floodFill(extended_img, None, (0, 0), (255, ))
original_img = extended_img[border:outh + border, border:outw + border]
debugimg(extended_img, 'flooded')
# Dilate the white areas of the image using gaussian blur and threshold. Use these instead of primitive dilation
# here for their non-directionality.
target_img = cv2.blur(original_img, (r, r))
_, target_img = cv2.threshold(target_img, 255 // (1 + r), 255,
cv2.THRESH_BINARY)
return target_img
def render_top_view(self, output_filename=None, quick=False, nox=False):
output_filename = '{0}.top.png'.format(output_filename)
ctx = GerberCairoContext()
if self.outline_color is not None:
ctx.color = self.outline_color
if self.outline_alpha is not None:
ctx.alpha = self.outline_alpha
outline = read(self.layers.outline)
outline.render(ctx)
if self.copper_color is not None:
ctx.color = self.copper_color
if self.copper_alpha is not None:
ctx.alpha = self.copper_alpha
copper = read(self.layers.top)
copper.render(ctx)
if self.mask_color is not None:
ctx.color = self.mask_color
if self.mask_alpha is not None:
ctx.alpha = self.mask_alpha
mask = read(self.layers.topmask)
mask.render(ctx, invert=True)
if self.silk_color is not None:
ctx.color = self.silk_color
if self.silk_alpha is not None:
ctx.alpha = self.silk_alpha
silk = read(self.layers.topsilk)
silk.render(ctx)
if self.drill_color is not None:
ctx.color = self.drill_color
if self.drill_alpha is not None:
ctx.alpha = self.drill_alpha
drill = read(self.layers.drill)
drill.render(ctx)
ctx.dump(output_filename)
def __init__(self, master=None):
super().__init__(master)
self.master = master
self.pack()
self.ctx = GerberCairoContext(8)
self.ctx.units = 'metric'
self.layers = {}
self.components = []
# self.components = self.load_pickplace()
self.layer = "TopLayer"
# self.geometry("{}x{}".format(self._image_ref.width(), self._image_ref.height()))
self.clist = ComponentListGui(self)
# self.clist.add_components(self.components, self.layer)
self.clist.pack(expand=True, side="right")
self.label = tk.Label(self)
self.label.pack(expand=True, side="left")
# self.draw_component()
self.bind('<ButtonRelease-1>', self.draw_component)
#!/usr/bin/env python
from gerber import load_layer
from gerber.render import RenderSettings, theme
from gerber.render.cairo_backend import GerberCairoContext
prefix = 'outputs/sonopi-dac-panelized'
ctx = GerberCairoContext(scale=40)
print('loading ', end='', flush=True)
copper = load_layer(prefix + '.GTL')
print('.', end='', flush=True)
mask = load_layer(prefix + '.GTS')
print('.', end='', flush=True)
silk = load_layer(prefix + '.GTO')
print('.', end='', flush=True)
drill = load_layer(prefix + '.TXT')
print('.', end='', flush=True)
outline = load_layer(prefix + '-fill.GML')
print('.', end='', flush=True)
print('. end', flush=True)
print('drawing ', end='', flush=True)
print('.', end='', flush=True)
metal_settings = RenderSettings(color=(30.0 / 255.0, 119.0 / 255.0,
93 / 255.0))
bg_settings = RenderSettings(color=(30.0 / 300.0, 110.0 / 300.0, 93 / 300.0))
ctx.render_layer(copper, settings=metal_settings, bgsettings=bg_settings)
print('.', end='', flush=True)
"""
This example demonstrates the use of pcb-tools with cairo to render composite
images using the PCB interface
"""
import os
from gerber import PCB
from gerber.render import theme
from gerber.render.cairo_backend import GerberCairoContext
GERBER_FOLDER = os.path.abspath(os.path.join(os.path.dirname(__file__), 'gerbers'))
# Create a new drawing context
ctx = GerberCairoContext()
# Create a new PCB instance
pcb = PCB.from_directory(GERBER_FOLDER)
# Render PCB top view
ctx.render_layers(pcb.top_layers,
os.path.join(os.path.dirname(__file__), 'pcb_top.png',),
theme.THEMES['OSH Park'], max_width=800, max_height=600)
# Render PCB bottom view
ctx.render_layers(pcb.bottom_layers,
os.path.join(os.path.dirname(__file__), 'pcb_bottom.png'),
theme.THEMES['OSH Park'], max_width=800, max_height=600)
# Render copper layers only
""" import gerber from gerber.render.cairo_backend import GerberCairoContext from gerber.render import RenderSettings, theme from gerber import load_layer import os BASE_DIR = os.path.abspath(os.path.join(os.path.dirname(__file__),'gerbers')) copper=load_layer(os.path.join(BASE_DIR,'copper.GTL')) mask=load_layer(os.path.join(BASE_DIR,'soldermask.GTS')) silk=load_layer(os.path.join(BASE_DIR,'silkscreen.GTO')) drill=load_layer(os.path.join(BASE_DIR,'ncdrill.DRD')) new=GerberCairoContext() new_settings=RenderSettings(color=theme.COLORS['red'],alpha=0.8) white_text_settings=RenderSettings(color=theme.COLORS['white'],alpha=0.8) new.render_layer(copper,settings=new_settings) new.render_layer(mask,settings=new_settings) new.render_layer(silk,settings=white_text_settings) new.render_layer(drill) new.dump(os.path.join(BASE_DIR,'front.png')) new.clear() copper_bottom=load_layer(os.path.join(BASE_DIR,'bottom_copper.GBL')) mask_bottom=load_layer(os.path.join(BASE_DIR,'bottom_mask.GBS')) new.render_layer(copper_bottom,settings=new_settings) new.render_layer(mask_bottom,settings=new_settings)
def render(BASE_FOLDER):
ppi = 1000
# font_size_in = 0.02
# font_color = 'rgb(255, 0, 0)'
# textbox_color = "skyblue"
Image.MAX_IMAGE_PIXELS = 1000000000
if os.path.exists(os.path.join(BASE_FOLDER, 'board_top.png')):
os.remove(os.path.join(BASE_FOLDER, 'board_top.png'))
if os.path.exists(os.path.join(BASE_FOLDER, 'board_bottom.png')):
os.remove(os.path.join(BASE_FOLDER, 'board_bottom.png'))
print('Processing ', BASE_FOLDER)
# Open the gerber files
copper = load_layer(os.path.join(BASE_FOLDER,
'GerberFiles\copper_top.gbr'))
mask = load_layer(
os.path.join(BASE_FOLDER, 'GerberFiles\soldermask_top.gbr'))
silk = load_layer(
os.path.join(BASE_FOLDER, 'GerberFiles\silkscreen_top.gbr'))
outline = load_layer(os.path.join(BASE_FOLDER, 'GerberFiles\profile.gbr'))
drill = load_layer(os.path.join(BASE_FOLDER, 'DrillFiles\drill_1_16.xln'))
# Create a new drawing context
ctx = GerberCairoContext(scale=ppi)
# Draw the outline first, so it establishes the outer dimensions
ctx.render_layer(outline,
settings=RenderSettings(color=theme.COLORS['black'],
alpha=0.85))
# Draw the copper layer. render_layer() uses the default color scheme for the
# layer, based on the layer type. Copper layers are rendered as
ctx.render_layer(copper,
settings=RenderSettings(color=theme.COLORS['hasl copper'],
alpha=0.85))
# Draw the soldermask layer
ctx.render_layer(mask,
settings=RenderSettings(
color=theme.COLORS['green soldermask'],
invert=True,
alpha=0.8))
# Draw the silkscreen layer, and specify the rendering settings to use
ctx.render_layer(silk,
settings=RenderSettings(color=theme.COLORS['white'],
alpha=0.85))
# Draw the drill layer
ctx.render_layer(drill)
# Draw the outline again so it's on top of everything
ctx.render_layer(outline,
settings=RenderSettings(color=theme.COLORS['black'],
alpha=0.85))
size_px = ctx.size_in_pixels
origin_px = ctx.origin_in_pixels
origin_in = ctx.origin_in_inch
print(f"size: {ctx.size_in_inch} in / {ctx.size_in_pixels} px ({ppi} PPI)")
print(f"origin: {ctx.origin_in_inch} in / {ctx.origin_in_pixels} px")
config = configparser.ConfigParser()
config['DIMENSIONS'] = {
'SIZE_X_IN': ctx.size_in_inch[0],
'SIZE_Y_IN': ctx.size_in_inch[1],
'SIZE_X_PX': ctx.size_in_pixels[0],
'SIZE_Y_PX': ctx.size_in_pixels[1],
'PPI': ppi,
'ORIGIN_X_IN': ctx.origin_in_inch[0],
'ORIGIN_Y_IN': ctx.origin_in_inch[1]
}
mtime = 0
for filename in os.listdir(os.path.join(BASE_FOLDER, 'GerberFiles')):
mtime = max(
mtime,
os.path.getmtime(os.path.join(BASE_FOLDER, 'GerberFiles',
filename)))
print('Latest file modification time: ', mtime)
config['OTHER'] = {'GERBERS_LASTMODIFIED': mtime}
with open(os.path.join(BASE_FOLDER, 'board.ini'), 'w') as configfile:
config.write(configfile)
# Write output to png file
ctx.dump(os.path.join(BASE_FOLDER, 'board_top.png'), verbose=True)
# Load the bottom layers
copper = load_layer(
os.path.join(BASE_FOLDER, 'GerberFiles\copper_bottom.gbr'))
mask = load_layer(
os.path.join(BASE_FOLDER, 'GerberFiles\soldermask_bottom.gbr'))
silk = load_layer(
os.path.join(BASE_FOLDER, 'GerberFiles\silkscreen_bottom.gbr'))
# Clear the drawing
ctx.clear()
# Render bottom layers
ctx.render_layer(outline,
settings=RenderSettings(color=theme.COLORS['black'],
mirror=True,
alpha=0.85))
ctx.render_layer(copper,
settings=RenderSettings(color=theme.COLORS['hasl copper'],
mirror=True,
alpha=0.85))
ctx.render_layer(mask,
settings=RenderSettings(
color=theme.COLORS['green soldermask'],
mirror=True,
invert=True,
alpha=0.8))
ctx.render_layer(silk,
settings=RenderSettings(color=theme.COLORS['white'],
mirror=True,
alpha=0.85))
ctx.render_layer(drill, settings=RenderSettings(mirror=True))
ctx.render_layer(outline,
settings=RenderSettings(color=theme.COLORS['black'],
mirror=True,
alpha=0.85))
# Write png file
ctx.dump(os.path.join(BASE_FOLDER, 'board_bottom.png'), verbose=True)
legend = load_layer('gerber_files/silkscreen.GTO')
drill = load_layer('gerber_files/ncdrill.DRD')
#Bottom View Layers
copper_btm = load_layer('gerber_files/bottom_copper.GBL')
soldermask_btm = load_layer('gerber_files/bottom_mask.GBS')
## Color Settings
mask_settings = RenderSettings(color=theme.COLORS['red soldermask'],
alpha=0.5,
invert=True)
legend_settings = RenderSettings(color=theme.COLORS['white'], alpha=0.8)
## Rendering
#Top View
cont = GerberCairoContext()
cont.render_layer(copper)
cont.render_layer(soldermask, settings=mask_settings)
cont.render_layer(legend, settings=legend_settings)
cont.render_layer(drill)
cont.dump('gen_images/redpcb.png')
#Clear cont
cont.clear()
#Bottom View
cont.render_layer(copper_btm)
cont.render_layer(soldermask_btm, settings=mask_settings)
cont.dump('gen_images/redpcb_bottom.png')
