def make_shape_for_circle(self, circ):
""" Generate an openjson shape for an eaglexml circle. """
ocirc = Circle(self.make_length(circ.x), self.make_length(circ.y),
self.make_length(circ.radius))
ocirc.add_attribute('eaglexml_width', circ.width)
return ocirc
def make_shape_for_circle(self, circ):
""" Generate an openjson shape for an eaglexml circle. """
ocirc = Circle(self.make_length(circ.x),
self.make_length(circ.y),
self.make_length(circ.radius))
ocirc.add_attribute('eaglexml_width', circ.width)
return ocirc
def _extract_ad(self, tok):
""" Extract aperture definition into shapes dict. """
tok = tok if ',' in tok else tok + ','
code_end = 4 if tok[3].isdigit() else 3
code = tok[1:code_end]
ap_type, mods = tok[code_end:].split(',')
if mods:
mods = [float(m) for m in mods.split('X') if m]
# An aperture can use any of the 4 standard types,
# (with or without a central hole), or a previously
# defined macro.
if ap_type == 'C':
shape = Circle(0, 0, mods[0] / 2)
hole_defs = len(mods) > 1 and mods[1:]
elif ap_type == 'R':
if len(mods) == 1:
shape = Rectangle(-mods[0] / 2, mods[0] / 2, mods[0], mods[0])
else:
shape = Rectangle(-mods[0] / 2, mods[1] / 2, mods[0], mods[1])
hole_defs = len(mods) > 2 and mods[2:]
elif ap_type == 'O':
shape = Obround(0, 0, mods[0], mods[1])
hole_defs = len(mods) > 2 and mods[2:]
elif ap_type == 'P':
if len(mods) < 3:
mods.append(0)
shape = RegularPolygon(0, 0, mods[0], mods[1], mods[2])
hole_defs = len(mods) > 3 and mods[3:]
else: # macro
shape = ap_type
if shape in self.macro_buff:
macro = self.macro_buff[shape].instantiate(mods)
counter = 0 # pick a unique name for the macro
while mods and macro.name in self.layer_buff.macros:
macro.name = shape + str(counter)
counter += 1
self.layer_buff.macros[macro.name] = macro
hole_defs = None
if hole_defs and (len(hole_defs) > 1):
hole = Rectangle(-hole_defs[0] / 2, hole_defs[1] / 2, hole_defs[0],
hole_defs[1])
elif hole_defs:
hole = Circle(0, 0, hole_defs[0] / 2)
else:
hole = None
self.layer_buff.apertures.update({code: Aperture(code, shape, hole)})
def _convert_shapes(self, shapes, center=(0, 0), absolute=False):
""" Convert shapes """
result = []
def fix_point(point):
x, y = (point[0] + center[0], point[1] + center[1])
if absolute:
# freerouter often creates points outside boundary, fix it
if x > self.max_x:
x = self.min_x + x - self.max_x
elif x < self.min_x:
x = self.max_x - x - self.min_x
if y > self.max_y:
y = self.min_y + y - self.max_y
elif y < self.min_y:
y = self.max_y - y - self.min_y
return (x, y)
for shape in shapes:
if isinstance(shape, specctraobj.PolylinePath):
points = [
fix_point(self.to_pixels(point)) for point in shape.vertex
]
result.extend(
self._convert_path(self.to_pixels(shape.aperture_width),
points))
elif isinstance(shape, specctraobj.Path):
points = [
fix_point(self.to_pixels(point)) for point in shape.vertex
]
# Path has connected start and end points
if points[0] != points[-1] and len(points) != 2:
points.append(points[0])
result.extend(
self._convert_path(self.to_pixels(shape.aperture_width),
points))
elif isinstance(shape, specctraobj.Polygon):
points = [
fix_point(self.to_pixels(point)) for point in shape.vertex
]
points = [Point(point[0], point[1]) for point in points]
result.append(Polygon(points))
elif isinstance(shape, specctraobj.Rectangle):
x1, y1 = self.to_pixels(shape.vertex1)
x2, y2 = self.to_pixels(shape.vertex2)
width, height = abs(x1 - x2), abs(y1 - y2)
x1, y1 = fix_point((min(x1, x2), max(y1, y2)))
result.append(Rectangle(x1, y1, width, height))
elif isinstance(shape, specctraobj.Circle):
point = fix_point(self.to_pixels(shape.vertex))
result.append(
Circle(point[0], point[1],
self.to_pixels(shape.diameter / 2.0)))
return result
def parse_circle(self, circle):
""" Parse a circle element """
return [
Circle(get_x(circle, 'cx', self.svg_mult),
get_y(circle, 'cy', self.svg_mult),
get_length(circle, 'r', self.svg_mult))
]
def test_eq(self):
c1 = Circle(0, 0, 5)
c2 = Circle(0, 0, 1)
self.assertEqual(Aperture('a', c1, c1), Aperture('b', c1, c1))
self.assertEqual(Aperture('a', c1, c2), Aperture('b', c1, c2))
self.assertEqual(Aperture('a', c1, None), Aperture('b', c1, None))
self.assertNotEqual(Aperture('a', c1, None), Aperture('b', c2, None))
self.assertNotEqual(Aperture('a', c1, c1), Aperture('b', c1, c2))
self.assertNotEqual(Aperture('a', c1, None), Aperture('b', c1, c2))
self.assertNotEqual(Aperture('a', c1, c1), Aperture('b', c1, None))
def bodies(self, offset, instance_attributes):
""" Generated the bodies for the Via with instance attribute overrides. Returns placment attribute and body
pairs.
"""
pos = Point(self.x, self.y)
attached_layers = self.get_attr('attached_layers', '',
instance_attributes).split(',')
solder_mask_expansion = self.get_int_attr('solder_mask_expansion', 0,
instance_attributes)
plating_diameter = self.get_int_attr('plating_diameter', 0,
instance_attributes)
internal_diameter = self.get_int_attr('internal_diameter', 0,
instance_attributes)
solder_mask_radius = solder_mask_expansion + (plating_diameter / 2)
# placment attribute + body pairs making up the generated object
bodies = []
top_solder_mask = FBody()
top_solder_mask.add_shape(Circle(pos.x, pos.y, solder_mask_radius))
bodies.append((FootprintAttribute(0, 0, 0, False,
'top solder mask'), top_solder_mask))
bottom_solder_mask = FBody()
bottom_solder_mask.add_shape(Circle(pos.x, pos.y, solder_mask_radius))
bodies.append(
(FootprintAttribute(0, 0, 0, False,
'bottom solder mask'), bottom_solder_mask))
# circle of diameter 'internal_diameter' on the hole layer
hole = FBody()
hole.add_shape(Circle(pos.x, pos.y, internal_diameter / 2))
bodies.append((FootprintAttribute(0, 0, 0, False, 'hole'), hole))
# circles of diameter 'plating_diameter' on each connection layer
for layer_name in attached_layers:
connected_layer = FBody()
connected_layer.add_shape(
Circle(pos.x, pos.y, plating_diameter / 2))
bodies.append((FootprintAttribute(0, 0, 0, False,
layer_name), connected_layer))
return bodies
def test_circle(self):
""" Convert circle shape """
circle = Circle(10, 20, 10)
writer = Specctra()
obj = writer._convert_shape(circle)
self.assertEqual(
to_string(writer, obj),
'( (circle signal 208.333333 104.166667 208.333333) )')
def _gen_trace(self, trace):
""" Traces are connected lines and arcs. """
shape = Circle(0 , 0, trace.width / 2.0)
select = self._select_aperture(shape, None)
if select:
yield LINE.format(select)
for seg in trace.segments:
for block in self._draw_seg(seg):
yield LINE.format(block)
def parse_shape(self, shape):
""" Extract a shape. """
# pylint: disable=R0914
# pylint: disable=R0911
typ = shape.get('type')
if 'rectangle' == typ:
x = int(shape.get('x'))
y = int(shape.get('y'))
height = int(shape.get('height'))
width = int(shape.get('width'))
parsed_shape = Rectangle(x, y, width, height)
elif 'rounded_rectangle' == typ:
x = int(shape.get('x'))
y = int(shape.get('y'))
height = int(shape.get('height'))
width = int(shape.get('width'))
radius = int(shape.get('radius'))
parsed_shape = RoundedRectangle(x, y, width, height, radius)
elif 'arc' == typ:
x = int(shape.get('x'))
y = int(shape.get('y'))
start_angle = float(shape.get('start_angle'))
end_angle = float(shape.get('end_angle'))
radius = int(shape.get('radius'))
parsed_shape = Arc(x, y, start_angle, end_angle, radius)
elif 'circle' == typ:
x = int(shape.get('x'))
y = int(shape.get('y'))
radius = int(shape.get('radius'))
parsed_shape = Circle(x, y, radius)
elif 'label' == typ:
x = int(shape.get('x'))
y = int(shape.get('y'))
rotation = float(shape.get('rotation'))
text = shape.get('text')
align = shape.get('align')
parsed_shape = Label(x, y, text, align, rotation)
elif 'line' == typ:
p1 = self.parse_point(shape.get('p1'))
p2 = self.parse_point(shape.get('p2'))
parsed_shape = Line(p1, p2)
elif 'polygon' == typ:
parsed_shape = Polygon()
for point in shape.get('points'):
parsed_shape.add_point(self.parse_point(point))
elif 'bezier' == typ:
control1 = self.parse_point(shape.get('control1'))
control2 = self.parse_point(shape.get('control2'))
p1 = self.parse_point(shape.get('p1'))
p2 = self.parse_point(shape.get('p2'))
parsed_shape = BezierCurve(control1, control2, p1, p2)
parsed_shape.styles = shape.get('styles') or {}
parsed_shape.attributes = shape.get('attributes') or {}
return parsed_shape
def _define_apertures(self):
""" Build the apertures needed to make shapes. """
for image in self.images:
for trace in image.traces:
shape = Circle(0, 0, trace.width / 2.0)
self._add_aperture(shape, None)
for smear in image.smears:
self._add_aperture(smear.shape, None)
for shape_instance in image.shape_instances:
self._add_aperture(shape_instance.shape, shape_instance.hole)
def test_circle(self):
""" Convert circle shape """
circle = Circle(10, 20, 10)
writer = Specctra()
writer.resolution = specctraobj.Resolution()
writer.resolution.unit = 'mil'
writer.resolution.resolution = 10
obj = writer._convert_shape(circle)
self.assertEqual(
to_string(writer, obj),
'( (circle signal 208.333333 104.166667 208.333333) )')
def instantiate(self, values):
""" Return a core.layout.Primitive with a set of fixed shapes
given a dict mapping variable numbers to values, or None if there
is no corresponding shape. """
shape_type = self.shape_type
mods = [m.evaluate(values) for m in self.modifiers]
if shape_type == 'ignore':
return None
is_additive = True if shape_type in ('moire', 'thermal') \
else bool(mods[0])
rotation = 0 if shape_type in ('circle', 'moire', 'thermal') \
else mods[-1]/180
if shape_type == 'circle':
shape = Circle(x=mods[2], y=mods[3], radius=mods[1] / 2)
elif shape_type == 'line-vector':
shape, rotation = self._vector_to_rect(mods, rotation)
elif shape_type == 'line-center':
shape = Rectangle(x=mods[3] - mods[1] / 2,
y=mods[4] + mods[2] / 2,
width=mods[1],
height=mods[2])
elif shape_type == 'line-lower-left':
shape = Rectangle(x=mods[3],
y=mods[4] + mods[2],
width=mods[1],
height=mods[2])
elif shape_type == 'outline':
points = [
Point(mods[i], mods[i + 1])
for i in range(2, len(mods[:-1]), 2)
]
shape = Polygon(points)
elif shape_type == 'polygon':
shape = RegularPolygon(x=mods[2],
y=mods[3],
outer=mods[4],
vertices=mods[1])
elif shape_type == 'moire':
mods[8] = 2 - mods[8] / 180
shape = Moire(*mods[0:9])
elif shape_type == 'thermal':
mods[5] = 2 - mods[5] / 180
shape = Thermal(*mods[0:6])
return Primitive(is_additive, rotation, shape)
def test_eq(self):
circle1 = Circle(0, 0, 5)
circle2 = Circle(0, 0, 1)
self.assertEqual(Aperture('a', circle1, circle1),
Aperture('b', circle1, circle1))
self.assertEqual(Aperture('a', circle1, circle2),
Aperture('b', circle1, circle2))
self.assertEqual(Aperture('a', circle1, None),
Aperture('b', circle1, None))
self.assertNotEqual(Aperture('a', circle1, None),
Aperture('b', circle2, None))
self.assertNotEqual(Aperture('a', circle1, circle1),
Aperture('b', circle1, circle2))
self.assertNotEqual(Aperture('a', circle1, None),
Aperture('b', circle1, circle2))
self.assertNotEqual(Aperture('a', circle1, circle1),
Aperture('b', circle1, None))
def test_get_pin(self):
""" The get_pin function returns the correct Pins """
shape = Rectangle(0, 0, 4, 8)
pin = get_pin(shape)
self.assertEqual(pin.p1.x, 2)
self.assertEqual(pin.p1.y, 4)
self.assertEqual(pin.p2.x, pin.p1.x)
self.assertEqual(pin.p2.y, pin.p1.y)
shape = Circle(0, 0, 4)
pin = get_pin(shape)
self.assertEqual(pin.p1.x, 0)
self.assertEqual(pin.p1.y, 0)
self.assertEqual(pin.p2.x, pin.p1.x)
self.assertEqual(pin.p2.y, pin.p1.y)
self.assertEqual(get_pin(Shape()), None)
def bodies(self, offset, instance_attributes):
bodies = []
attached_layers = self.get_attr('attached_layers', '',
instance_attributes).split(',')
width = self.get_int_attr('width', 0, instance_attributes)
height = self.get_int_attr('height', 0, instance_attributes)
radius = self.get_int_attr('radius', 0, instance_attributes)
shape_type = self.get_attr('shape', '', instance_attributes)
pos = Point(self.x, self.y)
for layer_name in attached_layers:
layer_name = layer_name
pad = FBody()
# invert top/bottom if the footprint is on the bottom of the board
if offset.side == 'bottom':
rev_sides = {'top': 'bottom', 'bottom': 'top'}
layer_name = ' '.join([
rev_sides.get(piece, piece)
for piece in layer_name.split(' ')
])
if shape_type == 'rectangle':
pad.add_shape(
Rectangle((width / 2), -(height / 2), width, height))
elif shape_type == 'rounded rectangle':
pad.add_shape(
RoundedRectangle((width / 2), -(height / 2), width, height,
radius))
elif shape_type == 'circle':
pad.add_shape(Circle(0, 0, radius))
else:
raise ValueError('unexpected shape type for padstack')
pad.rotate(self.rotation)
pad.shift(pos.x, pos.y)
bodies.append((FootprintAttribute(0, 0, 0, False,
layer_name), pad))
return bodies
def parse_shape(self, shape):
""" Extract a shape. """
# pylint: disable=R0914
# pylint: disable=R0911
rotation = shape.get('rotation', 0.0)
flip_horizontal = shape.get('flip_horizontal', False)
shape_type = shape.get('type')
if 'rectangle' == shape_type:
x = int(shape.get('x'))
y = int(shape.get('y'))
height = int(shape.get('height'))
width = int(shape.get('width'))
parsed_shape = Rectangle(x, y, width, height)
elif 'rounded_rectangle' == shape_type:
x = int(shape.get('x'))
y = int(shape.get('y'))
height = int(shape.get('height'))
width = int(shape.get('width'))
radius = int(shape.get('radius'))
parsed_shape = RoundedRectangle(x, y, width, height, radius)
elif 'arc' == shape_type:
x = int(shape.get('x'))
y = int(shape.get('y'))
start_angle = float(shape.get('start_angle'))
end_angle = float(shape.get('end_angle'))
radius = int(shape.get('radius'))
parsed_shape = Arc(x, y, start_angle, end_angle, radius)
elif 'circle' == shape_type:
x = int(shape.get('x'))
y = int(shape.get('y'))
radius = int(shape.get('radius'))
parsed_shape = Circle(x, y, radius)
elif 'label' == shape_type:
parsed_shape = self.parse_label(shape)
elif 'line' == shape_type:
p1 = self.parse_point(shape.get('p1'))
p2 = self.parse_point(shape.get('p2'))
parsed_shape = Line(p1, p2)
elif 'polygon' == shape_type:
parsed_shape = Polygon()
for point in shape.get('points'):
parsed_shape.add_point(self.parse_point(point))
elif 'bezier' == shape_type:
control1 = self.parse_point(shape.get('control1'))
control2 = self.parse_point(shape.get('control2'))
p1 = self.parse_point(shape.get('p1'))
p2 = self.parse_point(shape.get('p2'))
parsed_shape = BezierCurve(control1, control2, p1, p2)
elif 'rounded_segment' == shape_type:
p1 = self.parse_point(shape.get('p1'))
p2 = self.parse_point(shape.get('p2'))
width = int(shape.get('width'))
parsed_shape = RoundedSegment(p1, p2, width)
parsed_shape.rotation = rotation
parsed_shape.flip_horizontal = flip_horizontal
parsed_shape.styles = shape.get('styles') or {}
parsed_shape.attributes = shape.get('attributes') or {}
return parsed_shape
def test_circle_min_point(self):
'''Test Circle.min_point()'''
cir = Circle(2, 3, 4)
top_left = cir.min_point()
self.assertEqual(top_left.x, -2)
self.assertEqual(top_left.y, -1)
def _define_images(self, design, layer_name):
""" Define the images that make up the layer information. """
log.debug('creating images for layer "%s"', layer_name)
# trace segments on this layer
traces_image = Image(layer_name + '_traces', font_renderer=self.face)
for segment in design.trace_segments:
if segment.layer != layer_name:
continue
log.debug('Creating smear for trace: %s', segment)
# Assumes segment is rounded, straignt
trace_smear = Smear(Line(segment.p1, segment.p2), Circle(0, 0, segment.width / 2.0))
traces_image.smears.append(trace_smear)
# Generated objects in the design (vias, PTHs)
zero_pos = FootprintPos(0, 0, 0.0, False, 'top')
for gen_obj in design.layout_objects:
# XXX(shamer): body attr is only being used to hold the layer, other placement details are contained
# elsewhere
for body_attr, body in gen_obj.bodies(zero_pos, {}):
if body_attr.layer == layer_name:
for shape in body.shapes:
traces_image.add_shape(shape, design, zero_pos, body_attr)
self.images.append(traces_image)
# Pours on this layer
for pour in design.pours:
log.debug('adding body for pour: %s points, %s', len(pour.points), pour.layer)
if layer_name == pour.layer:
log.debug('adding body for pour: %s points, %s subtractive shapes', len(pour.points), len(pour.subtractive_shapes))
fill_image = Image('pour fill', font_renderer=self.face)
fill_image.fills.append(Fill(pour.points))
self.images.append(fill_image)
subtractive_image = Image('pour subtractive shapes', font_renderer=self.face, is_additive=False)
for shape in pour.subtractive_shapes:
if shape.type == 'rounded_segment':
trace_smear = Smear(Line(shape.p1, shape.p2), Circle(0, 0, shape.width / 2.0))
subtractive_image.smears.append(trace_smear)
else:
subtractive_image.add_shape(shape, None, FootprintPos(0, 0, 0.0, False, ''), FootprintPos(0, 0, 0.0, False, ''))
self.images.append(subtractive_image)
readded_image = Image('pour readded shapes', font_renderer=self.face, is_additive=True)
for shape in pour.readded_shapes:
if shape.type == 'rounded_segment':
trace_smear = Smear(Line(shape.p1, shape.p2), Circle(0, 0, shape.width / 2.0))
readded_image.smears.append(trace_smear)
else:
readded_image.add_shape(shape, None, FootprintPos(0, 0, 0.0, False, ''), FootprintPos(0, 0, 0.0, False, ''))
self.images.append(readded_image)
# trace segments on this layer
traces_image = Image(layer_name + '_traces', font_renderer=self.face)
for segment in design.trace_segments:
if segment.layer != layer_name:
continue
log.debug('Creating smear for trace: %s', segment)
# Assumes segment is rounded, straignt
trace_smear = Smear(Line(segment.p1, segment.p2), Circle(0, 0, segment.width / 2.0))
traces_image.smears.append(trace_smear)
# Generated objects in the design (vias, PTHs)
zero_pos = FootprintPos(0, 0, 0.0, False, 'top')
for gen_obj in design.layout_objects:
# XXX(shamer): body attr is only being used to hold the layer, other placement details are contained
# elsewhere
for body_attr, body in gen_obj.bodies(zero_pos, {}):
if body_attr.layer == layer_name:
for shape in body.shapes:
traces_image.add_shape(shape, design, zero_pos, body_attr)
self.images.append(traces_image)
# Component aspects on this layer
# a separate image is used for each component
for component_instance in design.component_instances:
component = design.components.components[component_instance.library_id]
component_image = Image(layer_name + ' component ' + component_instance.instance_id, font_renderer=self.face)
footprint_pos = component_instance.footprint_pos
if footprint_pos.side is None:
continue
for idx, footprint_attr in enumerate(component_instance.footprint_attributes):
log.debug('footprint pos: %s, side %s, flip %s', footprint_attr.layer, footprint_pos.side, footprint_pos.flip_horizontal)
fp_attr_cpy = copy.deepcopy(footprint_attr)
if footprint_attr.layer:
if footprint_pos.side == 'bottom':
rev_sides = {'top': 'bottom', 'bottom': 'top'}
fp_attr_cpy.layer = ' '.join([rev_sides.get(piece, piece) for piece in footprint_attr.layer.split(' ')])
if fp_attr_cpy.layer == layer_name:
footprint_body = component.footprints[component_instance.footprint_index].bodies[idx]
log.debug('adding footprint attribute: %s, %d shapes', fp_attr_cpy, len(footprint_body.shapes))
for shape in footprint_body.shapes:
component_image.add_shape(shape, component_instance, footprint_pos, fp_attr_cpy)
for idx, gen_obj_attr in enumerate(component_instance.gen_obj_attributes):
gen_obj = component.footprints[component_instance.footprint_index].gen_objs[idx]
# FIXME(shamer): check for unplaced generated objects.
# XXX(shamer): body attr is only being used to hold the layer, other placement details are contained
# elsewhere
for body_attr, body in gen_obj.bodies(footprint_pos, gen_obj_attr.attributes):
if body_attr.layer == layer_name:
log.debug('adding body for generated object: %s, %s', footprint_pos, gen_obj_attr)
for shape in body.shapes:
component_image.add_shape(shape, component_instance, footprint_pos, body_attr)
if component_image.not_empty():
self.images.append(component_image)
# paths on the layer
for path in design.paths:
if layer_name == path.layer:
log.debug('adding body for path: %s points, %s, %s, is closed: %s', len(path.points), path.width, path.layer, path.is_closed)
path_image = Image('path', font_renderer=self.face)
start = path.points[0]
for point in path.points[1:]:
path_image.add_shape(Line(start, point), Circle(0, 0, path.width), zero_pos, zero_pos)
start = point
if path.is_closed:
path_image.add_shape(Line(path.points[0], path.points[-1]), Circle(0, 0, path.width), zero_pos, zero_pos)
self.images.append(path_image)
# stand alone text on the layer
text_image = Image('text', font_renderer=self.face)
for text in design.pcb_text:
if layer_name == text.layer:
log.debug('adding body for text: "%s"', text.value)
text_image.add_shape(text.label, design, text, zero_pos)
if text_image.not_empty():
self.images.append(text_image)
def parse_c_line(self, parts):
""" Parse a C (Circle) line """
x, y, radius = [int(i) for i in parts[1:4]]
return Circle(make_length(x), make_length(y), make_length(radius))
def bodies(self, offset, instance_attributes):
""" Generated the bodies for the Via with instance attribute overrides. Returns placment attribute and body
pairs.
"""
attached_layers = self.get_attr('attached_layers', '',
instance_attributes).split(',')
internal_diameter = self.get_float_attr('internal_diameter', 0,
instance_attributes)
plating_shape = self.get_attr('plating_shape', '', instance_attributes)
# Local vars for use in closures to generate shapes
# XXX(shamer): The assignment of width and lenght are reversed from the javascript. Not sure why this is.
plating_width = self.get_float_attr('plating_length', 0,
instance_attributes)
plating_height = self.get_float_attr('plating_width', 0,
instance_attributes)
plating_radius = self.get_float_attr('plating_radius', 0,
instance_attributes)
plating_diameter = self.get_float_attr('plating_diameter', 0,
instance_attributes)
solder_mask_expansion = self.get_float_attr('solder_mask_expansion', 0,
instance_attributes)
#thermal_inner_diameter = self.get_float_attr('thermal_inner_diameter', 0, instance_attributes)
#thermal_spoke_width = self.get_float_attr('thermal_spoke_width', 0, instance_attributes)
#antipad_diameter = self.get_float_attr('antipad_diameter', 0, instance_attributes)
# placment attribute + body pairs making up the generated object
bodies = []
pad_pos = Point(self.x, self.y)
sme_pos = Point(self.x, self.y)
# Debugging marker for displaying the placment position for generated objects.
#marker = FBody()
#marker.add_shape(Circle(pad_pos.x, pad_pos.y, 1000000))
#bodies.append((FootprintAttribute(0, 0, 0, False, 'top silkscreen'), marker))
if plating_shape == 'square':
solder_mask_width = (solder_mask_expansion * 2) + plating_diameter
create_shape = lambda: Rectangle(
pad_pos.x, pad_pos.y, plating_diameter, plating_diameter)
create_solder_mask_expansion = lambda: Rectangle(
sme_pos.x, sme_pos.y, solder_mask_width, solder_mask_width)
elif plating_shape == 'circle':
create_shape = lambda: Circle(pad_pos.x, pad_pos.y,
plating_diameter / 2)
solder_mask_radius = solder_mask_expansion + (plating_diameter / 2)
create_solder_mask_expansion = lambda: Circle(
sme_pos.x, sme_pos.y, solder_mask_radius)
elif plating_shape == 'rectangle':
solder_mask_width = (solder_mask_expansion * 2) + plating_width
solder_mask_height = (solder_mask_expansion * 2) + plating_height
create_shape = lambda: Rectangle(pad_pos.x, pad_pos.y,
plating_width, plating_height)
create_solder_mask_expansion = lambda: Rectangle(
sme_pos.x, sme_pos.y, solder_mask_width, solder_mask_height)
elif plating_shape == 'rounded rectangle':
solder_mask_width = (solder_mask_expansion * 2) + plating_width
solder_mask_height = (solder_mask_expansion * 2) + plating_height
create_shape = lambda: RoundedRectangle(
pad_pos.x, pad_pos.y, plating_width, plating_height,
plating_radius)
create_solder_mask_expansion = lambda: RoundedRectangle(
sme_pos.x, sme_pos.y, solder_mask_width, solder_mask_height,
plating_radius)
else:
raise ValueError(
'unexpected shape for plated through hole "{0}"'.format(
plating_shape))
# cirle of radius 'solder_mask_expansion' + ('plating_diameter' / 2) in the top and bottom silkscreen layers
solder_mask_radius = solder_mask_expansion + (plating_diameter / 2)
top_solder_mask = FBody()
top_solder_mask.add_shape(create_solder_mask_expansion())
bodies.append((FootprintAttribute(0, 0, 0, False,
'top solder mask'), top_solder_mask))
bottom_solder_mask = FBody()
bottom_solder_mask.add_shape(create_solder_mask_expansion())
bodies.append(
(FootprintAttribute(0, 0, 0, False,
'bottom solder mask'), bottom_solder_mask))
# circle of diameter 'internal_diameter' on the hole layer
hole = FBody()
hole.add_shape(Circle(pad_pos.x, pad_pos.y, internal_diameter / 2))
bodies.append((FootprintAttribute(0, 0, 0, False, 'hole'), hole))
# circles of diameter 'plating_diameter' on each connection layer
for layer_name in attached_layers:
connected_layer = FBody()
if layer_name == 'top copper' or layer_name == 'bottom copper':
connected_layer.add_shape(create_shape())
else:
connected_layer.add_shape(
Circle(pad_pos.x, pad_pos.y, plating_diameter / 2))
bodies.append((FootprintAttribute(0, 0, 0, False,
layer_name), connected_layer))
return bodies
def test_create_new_circle(self):
""" Test the creation of a new empty circle. """
cir = Circle(0, 1, 2)
assert cir.x == 0
assert cir.y == 1
assert cir.radius == 2
def add_shape(self, shape, parent, parent_offset, offset):
""" Add a shape to the image. (might be added as a smear or fill) """
# Copy the shape so it can be mutated without affecting other instances
shapecpy = copy.deepcopy(shape)
# XXX(shamer): a label needs to be rendered before in-place rotations are made so the bounding box for the shape
# are known
if isinstance(shapecpy, Label):
self.face.set_char_size(int(shapecpy.font_size))
label_contours = []
x_offset = 0
y_offset = 0
label_text = self.resolve_text(shapecpy.text, parent.get_attribute)
for i, c in enumerate(label_text):
self.face.load_char(c,
flags=freetype.ft_enums.FT_LOAD_NO_BITMAP)
slot = self.face.glyph
outline = slot.outline
glyph_contours = []
start, end = 0, 0
# Iterate over each contour separately. Characters like 'g' have multiple contours as they cannot be
# walked with a contiguous set of arcs. The contours list contains the index of the point that the
# contour starts on.
for contour_idx in range(len(outline.contours)):
end = outline.contours[contour_idx]
points = [
Point(t[0], t[1])
for t in outline.points[start:end + 1]
]
tags = outline.tags[start:end + 1]
# Close the contour by repeating the last point.
points.append(copy.deepcopy(points[0]))
tags.append(copy.deepcopy(tags[0]))
segments = [
[
points[0],
],
]
# Group points into segments. The tag identifies real vs control points.
for point_idx in range(1, len(points)):
segments[-1].append(points[point_idx])
if tags[point_idx] & (1 << 0) and point_idx < (
len(points) - 1):
segments.append([
copy.deepcopy(points[point_idx]),
])
# take the fist and last points of each segment (the non-control points). To approximate the curves
# using straight lines.
glyph_contours.append([[segment[0], segment[-1]]
for segment in segments])
start = end + 1
# update the segments in the glyph with the x_offset
for contour_segments in glyph_contours:
for segments in contour_segments:
for point in segments:
point.x += x_offset
point.y += y_offset
label_contours.extend(glyph_contours)
x_offset += slot.advance.x
# adjust amount to advance with kerning offset
if i + 1 < len(label_text):
next_c = label_text[i + 1]
x_offset += self.face.get_kerning(c, next_c).x
# Update the segments for pre-render shifts, rotates, alignment
for contour_segments in label_contours:
for segments in contour_segments:
if shapecpy.align == 'center':
segments[0].shift(-(x_offset / 2), 0)
segments[1].shift(-(x_offset / 2), 0)
if shapecpy.rotation:
segments[0].rotate(shapecpy.rotation)
segments[1].rotate(shapecpy.rotation)
if shapecpy.flip_horizontal:
segments[0].flip(shapecpy.flip_horizontal)
segments[1].flip(shapecpy.flip_horizontal)
shapecpy._segments.append(segments)
# Calculate the bounding fox the label from the segments
min_point = [2**100, 2**100]
max_point = [-2**100, -2**100]
for contour_segments in label_contours:
for segments in contour_segments:
min_point[0] = min(segments[0].x, segments[1].x,
min_point[0])
max_point[0] = max(segments[0].x, segments[1].x,
max_point[0])
min_point[1] = min(segments[0].y, segments[1].y,
min_point[1])
max_point[1] = max(segments[0].y, segments[1].y,
max_point[1])
shapecpy._min_point = Point(min_point[0], min_point[1])
shapecpy._max_point = Point(max_point[0], max_point[1])
shapecpy.shift(offset.x, offset.y)
if parent_offset.rotation != 0:
shapecpy.rotate(parent_offset.rotation)
if parent_offset.flip_horizontal:
shapecpy.flip(parent_offset.flip_horizontal)
shapecpy.shift(parent_offset.x, parent_offset.y)
if offset.rotation != 0:
if parent_offset.flip_horizontal:
shapecpy.rotate(-offset.rotation, in_place=True)
else:
shapecpy.rotate(offset.rotation, in_place=True)
if offset.flip_horizontal:
shapecpy.flip(offset.flip_horizontal)
if isinstance(shapecpy, Line):
# FIXME(shamer): line doesn't have an explicit width. Gets used for outlines. Defaulted to 0.15mm
self.smears.append(Smear(shapecpy, Circle(0, 0, 0.15 * 1000000)))
elif isinstance(shapecpy, Circle):
self.shape_instances.append(
ShapeInstance(Point(shapecpy.x, shapecpy.y),
Aperture(None, shapecpy, None)))
elif isinstance(shapecpy, Rectangle):
#shapecpy.x += shapecpy.width
#shapecpy.y -= shapecpy.height / 2
shapecpy.width = abs(shapecpy.width)
shapecpy.height = abs(shapecpy.height)
if shapecpy.rotation != 0:
instance_name = 'Rect-W{width}-H{height}-RO{rotation}'.format(
height=shapecpy.height,
width=shapecpy.width,
rotation=shapecpy.rotation)
# XXX(shamer): additional copy is made so the x, y can be reset for use as a ComplexInstance
shapecpycpy = copy.deepcopy(shapecpy)
shapecpycpy.x = 0
shapecpycpy.y = 0
shapecpycpy.is_centered = True
primitives = [Primitive(1, 0.0, shapecpycpy)]
self.complex_instances.append(
ComplexInstance(instance_name,
Point(shapecpy.x, shapecpy.y), primitives))
else:
self.shape_instances.append(
ShapeInstance(Point(shapecpy.x, shapecpy.y),
Aperture(None, shapecpy, None)))
elif isinstance(shapecpy, RoundedRectangle):
# Rounded rectangle is added as a macro with two rectangles to fill out the body and four circles to make up
# the corners. `roundrect` is assumed to already be centered.
primitives = []
radius = abs(shapecpy.radius)
inner_height = abs(shapecpy.height) - (radius * 2)
inner_width = abs(shapecpy.width) - (radius * 2)
half_width = inner_width / 2.0
half_height = inner_height / 2.0
high_rect = Rectangle(0,
0,
abs(inner_width),
abs(shapecpy.height),
is_centered=True)
wide_rect = Rectangle(0,
0,
abs(shapecpy.width),
abs(inner_height),
is_centered=True)
primitives.append(Primitive(1, 0.0, high_rect))
primitives.append(Primitive(1, 0.0, wide_rect))
primitives.append(
Primitive(1, 0.0,
Circle(-half_width, half_height, shapecpy.radius)))
primitives.append(
Primitive(1, 0.0,
Circle(half_width, half_height, shapecpy.radius)))
primitives.append(
Primitive(1, 0.0,
Circle(half_width, -half_height, shapecpy.radius)))
primitives.append(
Primitive(1, 0.0,
Circle(-half_width, -half_height, shapecpy.radius)))
# rotate the positioning of the rounded corners (the circles)
for primitive in primitives:
primitive.shape.rotate(shapecpy.rotation)
instance_name = 'RR-H{height}-W{width}-R{radius}-RO{rotation}'.format(
height=abs(shapecpy.height),
width=abs(shapecpy.width),
radius=radius,
rotation=shapecpy.rotation)
self.complex_instances.append(
ComplexInstance(instance_name, Point(shapecpy.x, shapecpy.y),
primitives))
elif isinstance(shapecpy, Label):
# TODO(shamer): cache positions segments for glyphs
# FIXME((shamer): make baseline shift
# TODO(shamer) select the correct font based off of the label.font_family
# Debugging, used to show the anchor point of the label
#self.shape_instances.append(ShapeInstance(Point(shapecpy.x, shapecpy.y), Aperture(None, Circle(0, 0, 1000000 / 5), None)))
for segments in shapecpy._segments:
line = Line(segments[0], segments[1])
line.shift(shapecpy.x, shapecpy.y)
self.smears.append(Smear(line,
Circle(0, 0,
0.1016 * 1000000))) # 4 Mils
def test_circle_max_point(self):
'''Test Circle.max_point()'''
cir = Circle(2, 3, 4)
bottom_right = cir.max_point()
self.assertEqual(bottom_right.x, 6)
self.assertEqual(bottom_right.y, 7)
def parse_circle(self, args):
""" Returns a parsed circle. """
x, y, rad = [int(a) for a in args.split()]
return ('shape', Circle(x, y, rad))
def parse_c_line(self, parts):
""" Parse a C (Circle) line """
x, y, radius = [int(i) for i in parts[1:4]]
return Circle(x, y, radius)