def BuildFootprint(self):
"""
Actually make the footprint. We defer all but the setup to
the implmenting class
"""
self.module = pcbnew.MODULE(None) # create a new module
# do it first, so if we return early, we don't segfault KiCad
if not self.ProcessParameters():
return
self.draw = FootprintWizardDrawingAids.FootprintWizardDrawingAids(
self.module)
self.module.SetValue(self.GetValue())
self.module.SetReference("%s**" % self.GetReferencePrefix())
fpid = pcbnew.FPID(self.module.GetValue()) # the name in library
self.module.SetFPID(fpid)
self.SetModule3DModel() # add a 3d module if specified
thick = self.GetTextThickness()
self.module.Reference().SetThickness(thick)
self.module.Value().SetThickness(thick)
self.BuildThisFootprint() # implementer's build function
def compat_libitem_func(instance):
try:
test_obj = pcbnew.FPID()
except AttributeError:
test_obj = pcbnew.LIB_ID()
if not hasattr(test_obj, "GetLibItemName"):
return MethodType(lambda self, x: x.GetFootprintName(), instance)
else:
return MethodType(lambda self, x: x.GetLibItemName(), instance)
def save(self, library_path):
"""Save footprint in given library
library_path should end with .pretty
"""
self._module.SetFPID(pcbnew.FPID(self._module.GetReference()))
io = pcbnew.PCB_IO()
try:
io.FootprintLibCreate(library_path)
except IOError:
pass # we try to create, but may be it exists already
io.FootprintSave(library_path, self._module)
def BuildFootprint(self):
if self.has_errors():
print "Cannot build footprint: Parameters have errors:"
print self.parameter_errors
return
print "Building new QFP footprint with the following parameters:"
self.print_parameter_table()
self.module = pcbnew.MODULE(None) # create a new module
pads = self.parameters
num_pads = int(pads["Pads"]["*n"])
pad_width = pads["Pads"]["width"]
pad_length = pads["Pads"]["length"]
pad_pitch = pads["Pads"]["pitch"]
pad_horizontal_pitch = pads["Pads"]["horizontal pitch"]
pad_vertical_pitch = pads["Pads"]["vertical pitch"]
package_width = pads["Package"]["width"]
package_height = pads["Package"]["height"]
side_length = pad_pitch * ((num_pads / 4) - 1)
offsetX = pad_pitch * ((num_pads / 4) - 1) / 2
text_size = pcbnew.wxSize(pcbnew.FromMM(0.8), pcbnew.FromMM(0.8))
self.module.SetReference("QFP %d" % int(num_pads))
self.module.Reference().SetPos0(pcbnew.wxPoint(0, pcbnew.FromMM(-0.8)))
self.module.Reference().SetTextPosition(
self.module.Reference().GetPos0())
self.module.Reference().SetSize(text_size)
self.module.SetValue("U**")
self.module.Value().SetPos0(pcbnew.wxPoint(0, pcbnew.FromMM(+0.8)))
self.module.Value().SetTextPosition(self.module.Value().GetPos0())
self.module.Value().SetSize(text_size)
fpid = pcbnew.FPID(self.module.GetReference()) #the name in library
self.module.SetFPID(fpid)
pad_size_left_right = pcbnew.wxSize(pad_length, pad_width)
pad_size_bottom_top = pcbnew.wxSize(pad_width, pad_length)
for cur_pad in range(0, num_pads):
side = int(
cur_pad /
(num_pads / 4)) # 0 -> left, 1 -> bottom, 2 -> right, 3 -> top
if side == 0 or side == 2:
pad_size = pad_size_left_right
pad_pos_x = -(pad_horizontal_pitch / 2)
pad_pos_y = (cur_pad %
(num_pads / 4)) * pad_pitch - (side_length / 2)
if side == 2:
pad_pos_x = -pad_pos_x
pad_pos_y = -pad_pos_y
else:
pad_size = pad_size_bottom_top
pad_pos_x = (cur_pad %
(num_pads / 4)) * pad_pitch - (side_length / 2)
pad_pos_y = -(pad_vertical_pitch / 2)
if side == 1:
pad_pos_y = -pad_pos_y
else:
pad_pos_x = -pad_pos_x
pad_pos = pcbnew.wxPoint(pad_pos_x, pad_pos_y)
pad = self.smd_rect_pad(self.module, pad_size, pad_pos,
str(cur_pad + 1))
self.module.Add(pad)
half_package_width = package_width / 2
half_package_height = package_height / 2
package_pad_height_offset = abs(package_height -
side_length) / 2 - pad_pitch
package_pad_width_offset = abs(package_width -
side_length) / 2 - pad_pitch
# Bottom Left Edge, vertical line
outline = pcbnew.EDGE_MODULE(self.module)
outline.SetWidth(pcbnew.FromMM(0.2))
outline.SetLayer(pcbnew.SILKSCREEN_N_FRONT)
outline.SetShape(pcbnew.S_SEGMENT)
start = pcbnew.wxPoint(-half_package_width,
half_package_height - package_pad_height_offset)
end = pcbnew.wxPoint(-half_package_width, half_package_height)
outline.SetStartEnd(start, end)
self.module.Add(outline)
# Bottom Left Edge, horizontal line
outline = pcbnew.EDGE_MODULE(self.module)
outline.SetWidth(pcbnew.FromMM(0.2))
outline.SetLayer(pcbnew.SILKSCREEN_N_FRONT)
outline.SetShape(pcbnew.S_SEGMENT)
start = pcbnew.wxPoint(-half_package_width, half_package_height)
end = pcbnew.wxPoint(-half_package_width + package_pad_width_offset,
half_package_height)
outline.SetStartEnd(start, end)
self.module.Add(outline)
# Bottom Right Edge, vertical line
outline = pcbnew.EDGE_MODULE(self.module)
outline.SetWidth(pcbnew.FromMM(0.2))
outline.SetLayer(pcbnew.SILKSCREEN_N_FRONT)
outline.SetShape(pcbnew.S_SEGMENT)
start = pcbnew.wxPoint(half_package_width,
half_package_height - package_pad_height_offset)
end = pcbnew.wxPoint(half_package_width, half_package_height)
outline.SetStartEnd(start, end)
self.module.Add(outline)
# Bottom Right Edge, horizontal line
outline = pcbnew.EDGE_MODULE(self.module)
outline.SetWidth(pcbnew.FromMM(0.2))
outline.SetLayer(pcbnew.SILKSCREEN_N_FRONT)
outline.SetShape(pcbnew.S_SEGMENT)
start = pcbnew.wxPoint(half_package_width, half_package_height)
end = pcbnew.wxPoint(half_package_width - package_pad_width_offset,
half_package_height)
outline.SetStartEnd(start, end)
self.module.Add(outline)
# Top Right Edge, vertical line
outline = pcbnew.EDGE_MODULE(self.module)
outline.SetWidth(pcbnew.FromMM(0.2))
outline.SetLayer(pcbnew.SILKSCREEN_N_FRONT)
outline.SetShape(pcbnew.S_SEGMENT)
start = pcbnew.wxPoint(
half_package_width,
-half_package_height + package_pad_height_offset)
end = pcbnew.wxPoint(half_package_width, -half_package_height)
outline.SetStartEnd(start, end)
self.module.Add(outline)
# Top Right Edge, horizontal line
outline = pcbnew.EDGE_MODULE(self.module)
outline.SetWidth(pcbnew.FromMM(0.2))
outline.SetLayer(pcbnew.SILKSCREEN_N_FRONT)
outline.SetShape(pcbnew.S_SEGMENT)
start = pcbnew.wxPoint(half_package_width, -half_package_height)
end = pcbnew.wxPoint(half_package_width - package_pad_width_offset,
-half_package_height)
outline.SetStartEnd(start, end)
self.module.Add(outline)
# Top Left Edge, straight line
outline = pcbnew.EDGE_MODULE(self.module)
outline.SetWidth(pcbnew.FromMM(0.2))
outline.SetLayer(pcbnew.SILKSCREEN_N_FRONT)
outline.SetShape(pcbnew.S_SEGMENT)
start = pcbnew.wxPoint(
-half_package_width,
-half_package_height + package_pad_height_offset)
end = pcbnew.wxPoint(-half_package_width + package_pad_width_offset,
-half_package_height)
outline.SetStartEnd(start, end)
self.module.Add(outline)