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")
print('.', end='', flush=True)
our_settings = RenderSettings(color=theme.COLORS['white'], alpha=0.80)
ctx.render_layer(silk, settings=our_settings)
print('.', end='', flush=True)
ctx.render_layer(outline)
print('.', end='', flush=True)
ctx.render_layer(drill)
print('.', end='', flush=True)
print('. end', flush=True)
print('dumping ...')
ctx.dump('outputs/board-top.png')
ctx.clear()
print('loading bottom ', end='', flush=True)
copper = load_layer(prefix + '.GBL')
print('.', end='', flush=True)
mask = load_layer(prefix + '.GBS')
print('.', end='', flush=True)
silk = load_layer(prefix + '.GBO')
print('.', end='', flush=True)
print('. end', flush=True)
print('drawing bottom ', end='', flush=True)
ctx.render_layer(copper, settings=metal_settings, bgsettings=bg_settings)
print('.', end='', flush=True)
ctx.render_layer(mask, settings=copper_settings)
print('.', end='', flush=True)
ctx.render_layer(silk, settings=our_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)
class PcbGui(tk.Frame):
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)
def select_gerber_folder(self):
dir = tk.filedialog.askdirectory(title="Select folder with Gerbers")
self.layers = {}
for infile in listdir(dir):
path = os.path.join(dir, infile)
if infile.lower().endswith('gbl'):
self.layers['gbl'] = gerber.load_layer(path)
if infile.lower().endswith('gtl'):
self.layers['gtl'] = gerber.load_layer(path)
if infile.lower().endswith('gtp'):
self.layers['gtp'] = gerber.load_layer(path)
self.draw_component()
def set_layer(self, layer):
self.layer = layer
self.draw_component()
self.clist.add_components(self.components, self.layer)
def menubar(self, root):
menubar = tk.Menu(root)
pageMenu = tk.Menu(menubar)
pageMenu.add_command(label="Open Gerber folder",
command=self.select_gerber_folder)
pageMenu.add_command(label="Open pick and place file",
command=self.load_pickplace)
menubar.add_cascade(label="File", menu=pageMenu)
layerMenu = tk.Menu(menubar)
layerMenu.add_radiobutton(label="Top Layer",
command=lambda: self.set_layer("TopLayer"))
layerMenu.add_radiobutton(
label="Bottom Layer",
command=lambda: self.set_layer("BottomLayer"))
menubar.add_cascade(label="Layer", menu=layerMenu)
helpMenu = tk.Menu(menubar, name="help")
helpMenu.add_command(label="About")
menubar.add_cascade(label="Help", menu=helpMenu)
return menubar
# def load_gerber(self):
# self.layers = {}
# self.layers.append(gerber.load_layer('example.GTL'))
# self.ctx.render_layers(layers, buffer, max_width=self.w, max_height=self.h, verbose=True)
def draw_component(self, event=None):
self.ctx.clear()
if len(self.layers) > 0:
if self.layer == "TopLayer":
copper_settings = RenderSettings(color=theme.COLORS['black'],
alpha=0.8,
mirror=False)
self.ctx.render_layer(self.layers["gtl"],
settings=copper_settings,
verbose=True)
self.ctx.new_render_layer(mirror=False)
if self.layer == "BottomLayer":
copper_settings = RenderSettings(color=theme.COLORS['black'],
alpha=0.8,
mirror=True)
self.ctx.render_layer(self.layers["gbl"],
settings=copper_settings)
self.ctx.new_render_layer(mirror=True)
self.ctx._color = (1.0, 0.0, 1.0)
layer = self.layer
if self.clist.tb.selected_row != None:
part_number = self.clist.tb.selected_row['PN']
else:
part_number = None
for c in self.components:
if (c['layer'] == layer) and (c['part_number'] == part_number):
print("{} {}".format(c['x_mm'], c['y_mm']))
self.ctx.render(
gerber.primitives.Circle((c['x_mm'], c['y_mm']), 1))
self.ctx.flatten()
buffer = BytesIO()
self.ctx.dump(buffer)
img = ImageTk.PhotoImage(Image.open(buffer))
self.label.configure(image=img)
self.label.image = img
def load_pickplace(self):
filename = tk.filedialog.askopenfilename(
title="Select pick and place file")
components = []
filetype = "Kicad"
with open(filename, "r") as ppfile:
header_read = False
for line in ppfile:
line = shlex.split(line)
if len(line) > 0:
if header_read == False:
# Try to determine the file type based on the contents
if line[0] == "Altium":
filetype = "Altium"
if line[0] == "Designator" or line[0] == "#":
header_read = True
else:
if filetype == "Altium":
component = {}
component['designator'] = line[0]
component['part_number'] = line[1]
component['x_mm'] = float(line[4][:-2])
component['y_mm'] = float(line[5][:-2])
component['layer'] = line[2]
component['description'] = line[7]
components.append(component)
elif filetype == "Kicad":
if len(line) > 6:
print(line)
component = {}
component['designator'] = line[0]
component['part_number'] = line[1]
component['x_mm'] = float(line[3])
component['y_mm'] = float(line[4])
component['layer'] = "TopLayer" if line[
6] == "top" else "BottomLayer"
if component['layer'] == "BottomLayer":
component['x_mm'] *= -1
component['description'] = line[2]
components.append(component)
self.components = components
self.clist.add_components(self.components, self.layer)
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) new.render_layer(drill) new.dump(os.path.join(BASE_DIR,'back.png'))
# The default style can be overridden by passing a RenderSettings instance to # render_layer(). # First, create a settings object: our_settings = RenderSettings(color=theme.COLORS['white'], alpha=0.85) # Draw the silkscreen layer, and specify the rendering settings to use ctx.render_layer(silk, settings=our_settings) # Draw the drill layer ctx.render_layer(drill) # Write output to png file ctx.dump(os.path.join(os.path.dirname(__file__), 'cairo_example.png')) # Load the bottom layers copper = load_layer(os.path.join(GERBER_FOLDER, 'bottom_copper.GBL')) mask = load_layer(os.path.join(GERBER_FOLDER, 'bottom_mask.GBS')) # Clear the drawing ctx.clear() # Render bottom layers ctx.render_layer(copper) ctx.render_layer(mask) ctx.render_layer(drill) # Write png file ctx.dump(os.path.join(os.path.dirname(__file__), 'cairo_bottom.png'))
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')
