def _pathToPoints(self, path):
"""
Converts a path into points
"""
path = SvgPath(path.get('d'))
coords = path.getCoordList(self._steps, self._length)
return coords
def _pathToPoints(self, path):
"""
Converts a path into points
"""
path = SvgPath(path.get('d'))
coords = path.getCoordList(self._steps,
self._length)
return coords
def __init__(self, shape):
gerber_lp = None
mirror = False
# Invert rotation so it's clock-wise. Inkscape is counter-clockwise and
# it's unclear to ma what's the "right" direction. clockwise makse more
# sense to me. This should be the only place to make the change.
self._inv_rotate = -1
self._rotate = shape.get('rotate') or 0
self._rotate *= self._inv_rotate
self._rotate_point = shape.get('rotate-point') or Point(0,0)
self._scale = shape.get('scale') or 1
self._pour_buffer = shape.get('buffer-to-pour')
try:
self._type = shape.get('type')
except:
msg.error("Shapes must have a 'type' defined")
if self._type in ['rect', 'rectangle']:
path = svg.width_and_height_to_path(shape['width'], shape['height'], shape.get('radii'))
elif self._type in ['circ', 'circle', 'round']:
path = svg.circle_diameter_to_path(shape['diameter'])
elif self._type in ['drill']:
self._diameter = shape['diameter']
path = svg.drillPath(self._diameter)
elif self._type in ['text', 'string']:
try:
self._text = shape['value']
except KeyError:
msg.error("Could not find the text to display. The text to be displayed should be defined in the 'value' field, for example, 'value': 'DEADBEEF\\nhar\\nhar'")
# Get the fon'ts name
font = shape.get('font-family') or config.stl['layout']['defaults']['font-family']
# Search for the font SVG in these paths
paths = [os.path.join(config.cfg['base-dir']),
os.path.join(os.path.dirname(os.path.realpath(__file__)), '..')]
font_filename = "%s.svg" % font
filenames = ''
font_data = None
for path in paths:
filename = os.path.join(path,
config.cfg['locations']['fonts'],
font_filename)
filenames += " %s \n" % filename
if os.path.isfile(filename):
font_data = et.ElementTree(file=filename)
break
if font_data == None:
msg.error("Couldn't find style file %s. Looked for it here:\n%s" % (font_filename, filenames))
try:
fs = shape['font-size']
except:
msg.error("A 'font-size' attribute must be specified for a 'text' type")
ls = shape.get('letter-spacing') or '0mm'
lh = shape.get('line-height') or fs
font_size, letter_spacing, line_height = utils.getTextParams(fs,
ls,
lh)
# With the units-per-em we can figure out the scale factor
# to use for the desired font size
units_per_em = float(font_data.find("//n:font-face", namespaces={'n': config.cfg['namespace']['svg']}).get('units-per-em')) or 1000
self._scale = font_size/units_per_em
# Get the path to use. This returns the path without
# scaling, which will be applied later, in the same manner
# as to the other shape types
path, gerber_lp = utils.textToPath(font_data,
self._text,
letter_spacing,
line_height,
self._scale)
# In the case where the text is an outline/stroke instead
# of a fill we get rid of the gerber_lp
if shape.get('style') == 'stroke':
gerber_lp = None
self._rotate += 180
elif self._type in ['path']:
path = shape.get('value')
else:
msg.error("'%s' is not a recongnised shape type" % self._type)
self._path = SvgPath(path, gerber_lp)
self._path.transform(self._scale, self._rotate, self._rotate_point, True)
self._gerber_lp = (shape.get('gerber-lp') or
shape.get('gerber_lp') or
gerber_lp or
None)
self._location = utils.toPoint(shape.get('location', [0, 0]))
def textToPath(font_data, text, letter_spacing, line_height, scale_factor):
"""
Convert a text string (unicode and newlines allowed) to a path.
The 'scale_factor' is needed in order to scale rp 'letter_spacing' and 'line_height'
to the original scale of the font.
"""
# This the horizontal advance that applied to all glyphs unless there's a specification for
# for the glyph itself
font_horiz_adv_x = float(font_data.find("//n:font", namespaces={'n': config.cfg['namespace']['svg']}).get('horiz-adv-x'))
# This is the number if 'units' per 'em'. The default, in the absence of a definition is 1000
# according to the SVG spec
units_per_em = float(font_data.find("//n:font-face", namespaces={'n': config.cfg['namespace']['svg']}).get('units-per-em')) or 1000
glyph_ascent = float(font_data.find("//n:font-face", namespaces={'n': config.cfg['namespace']['svg']}).get('ascent'))
glyph_decent = float(font_data.find("//n:font-face", namespaces={'n': config.cfg['namespace']['svg']}).get('descent'))
text_width = 0
text_path = ''
# split text into charcters and find unicade chars
try:
text = re.findall(r'(\&#x[0-9abcdef]*;|.|\n)', text)
except:
throw("There's a problem parsing the text '%s'. Unicode and \\n newline should be fine, by the way." % text)
# instantiate HTML parser
htmlpar = HTMLParser.HTMLParser()
gerber_lp = ''
text_height = 0
if line_height == None:
line_height = units_per_em
for i, symbol in enumerate(text[:]):
symbol = htmlpar.unescape(symbol)
# get the glyph definition from the file
if symbol == '\n':
text_width = 0
text_height += units_per_em + (line_height/scale_factor-units_per_em)
else:
glyph = font_data.find(u'//n:glyph[@unicode="%s"]' % symbol, namespaces={'n': config.cfg['namespace']['svg']})
if glyph == None:
utils.throw("Damn, there's no glyph definition for '%s' in the '%s' font :(" % (symbol, font))
else:
# Unless the glyph has its own width, use the global font width
glyph_width = float(glyph.get('horiz-adv-x') or font_horiz_adv_x)
if symbol != ' ':
glyph_path = SvgPath(glyph.get('d'))
first_point = glyph_path.getFirstPoint()
offset_x = float(first_point[0])
offset_y = float(first_point[1])
path = glyph_path.getRelative()
path = re.sub('^(m\s?[-\d\.]+\s?,\s?[-\d\.]+)', 'M %s,%s' % (str(text_width+offset_x), str(offset_y-text_height)), path)
gerber_lp += (glyph.get('gerber-lp') or
glyph.get('gerber_lp') or
"%s" % 'd'*glyph_path.getNumberOfSegments())
text_path += "%s " % (path)
text_width += glyph_width+letter_spacing/scale_factor
# Mirror text
text_path = SvgPath(text_path)
text_path.transform()
text_path = text_path.getTransformedMirrored()
return text_path, gerber_lp
def textToPath(font_data, text, letter_spacing, line_height, scale_factor):
"""
Convert a text string (unicode and newlines allowed) to a path.
The 'scale_factor' is needed in order to scale rp 'letter_spacing' and 'line_height'
to the original scale of the font.
"""
# This the horizontal advance that applied to all glyphs unless there's a specification for
# for the glyph itself
font_horiz_adv_x = float(
font_data.find("//n:font",
namespaces={
'n': config.cfg['namespace']['svg']
}).get('horiz-adv-x'))
# This is the number if 'units' per 'em'. The default, in the absence of a definition is 1000
# according to the SVG spec
units_per_em = float(
font_data.find("//n:font-face",
namespaces={
'n': config.cfg['namespace']['svg']
}).get('units-per-em')) or 1000
glyph_ascent = float(
font_data.find("//n:font-face",
namespaces={
'n': config.cfg['namespace']['svg']
}).get('ascent'))
glyph_decent = float(
font_data.find("//n:font-face",
namespaces={
'n': config.cfg['namespace']['svg']
}).get('descent'))
text_width = 0
text_path = ''
# split text into charcters and find unicade chars
try:
text = re.findall(r'(\&#x[0-9abcdef]*;|.|\n)', text)
except:
throw(
"There's a problem parsing the text '%s'. Unicode and \\n newline should be fine, by the way."
% text)
# instantiate HTML parser
htmlpar = HTMLParser.HTMLParser()
gerber_lp = ''
text_height = 0
if line_height == None:
line_height = units_per_em
for i, symbol in enumerate(text[:]):
symbol = htmlpar.unescape(symbol)
# get the glyph definition from the file
if symbol == '\n':
text_width = 0
text_height += units_per_em + (line_height / scale_factor -
units_per_em)
else:
glyph = font_data.find(
u'//n:glyph[@unicode="%s"]' % symbol,
namespaces={'n': config.cfg['namespace']['svg']})
if glyph == None:
utils.throw(
"Damn, there's no glyph definition for '%s' in the '%s' font :("
% (symbol, font))
else:
# Unless the glyph has its own width, use the global font width
glyph_width = float(
glyph.get('horiz-adv-x') or font_horiz_adv_x)
if symbol != ' ':
glyph_path = SvgPath(glyph.get('d'))
first_point = glyph_path.getFirstPoint()
offset_x = float(first_point[0])
offset_y = float(first_point[1])
path = glyph_path.getRelative()
path = re.sub(
'^(m\s?[-\d\.]+\s?,\s?[-\d\.]+)',
'M %s,%s' % (str(text_width + offset_x),
str(offset_y - text_height)), path)
gerber_lp += (glyph.get('gerber-lp')
or glyph.get('gerber_lp') or "%s" % 'd' *
glyph_path.getNumberOfSegments())
text_path += "%s " % (path)
text_width += glyph_width + letter_spacing / scale_factor
# Mirror text
text_path = SvgPath(text_path)
text_path.transform()
text_path = text_path.getTransformedMirrored()
return text_path, gerber_lp
def __init__(self, shape):
gerber_lp = None
mirror = False
self._shape_dict = shape
# Invert rotation so it's clock-wise. Inkscape is counter-clockwise and
# it's unclear to ma what's the "right" direction. clockwise makse more
# sense to me. This should be the only place to make the change.
self._inv_rotate = -1
try:
self._type = shape.get('type')
except:
msg.error("Shapes must have a 'type' defined")
# A 'layer' type is a copy of the outline. Here we copy the
# outline shape and override the type
if self._type in ['layer']:
self._shape_dict = config.brd['outline'].get('shape').copy()
self._type = self._shape_dict.get('type')
self._place_mirrored = shape.get('mirror') or False
self._rotate = shape.get('rotate') or 0
self._rotate *= self._inv_rotate
self._rotate_point = shape.get('rotate-point') or Point(0, 0)
self._scale = shape.get('scale') or 1
self._pour_buffer = shape.get('buffer-to-pour')
# A general purpose label field; intended for use for pad
# labels
self._label = None
if self._type in ['rect', 'rectangle']:
path = svg.width_and_height_to_path(self._shape_dict['width'],
self._shape_dict['height'],
self._shape_dict.get('radii'))
elif self._type in ['circ', 'circle', 'round']:
path = svg.circle_diameter_to_path(self._shape_dict['diameter'])
elif self._type in ['drill']:
self._diameter = self._shape_dict['diameter']
path = svg.drillPath(self._diameter)
elif self._type in ['text', 'string']:
try:
self._text = self._shape_dict['value']
except KeyError:
msg.error(
"Could not find the text to display. The text to be displayed should be defined in the 'value' field, for example, 'value': 'DEADBEEF\\nhar\\nhar'"
)
# Get the font's name
font = self._shape_dict.get('font-family') or config.stl['layout'][
'defaults']['font-family']
# Search for the font SVG in these paths
paths = [
os.path.join(config.cfg['base-dir']),
os.path.join(os.path.dirname(os.path.realpath(__file__)), '..')
]
font_filename = "%s.svg" % font
filenames = ''
font_data = None
for path in paths:
filename = os.path.join(path, config.cfg['locations']['fonts'],
font_filename)
filenames += " %s \n" % filename
if os.path.isfile(filename):
font_data = et.ElementTree(file=filename)
break
if font_data == None:
msg.error(
"Couldn't find style file %s. Looked for it here:\n%s" %
(font_filename, filenames))
try:
fs = self._shape_dict['font-size']
except:
msg.error(
"A 'font-size' attribute must be specified for a 'text' type"
)
ls = self._shape_dict.get('letter-spacing') or '0mm'
lh = self._shape_dict.get('line-height') or fs
font_size, letter_spacing, line_height = utils.getTextParams(
fs, ls, lh)
# With the units-per-em we can figure out the scale factor
# to use for the desired font size
units_per_em = float(
font_data.find("//n:font-face",
namespaces={
'n': config.cfg['namespace']['svg']
}).get('units-per-em')) or 1000
self._scale = font_size / units_per_em
# Get the path to use. This returns the path without
# scaling, which will be applied later, in the same manner
# as to the other shape types
path, gerber_lp = utils.textToPath(font_data, self._text,
letter_spacing, line_height,
self._scale)
# In the case where the text is an outline/stroke instead
# of a fill we get rid of the gerber_lp
if self._shape_dict.get('style') == 'stroke':
gerber_lp = None
self._rotate += 180
elif self._type in ['path']:
path = self._shape_dict.get('value')
else:
msg.error("'%s' is not a recongnised shape type" % self._type)
self._path = SvgPath(path, gerber_lp)
self._path.transform(scale=self._scale,
rotate_angle=self._rotate,
rotate_point=self._rotate_point,
mirror=self._place_mirrored)
self._gerber_lp = (shape.get('gerber-lp') or shape.get('gerber_lp')
or gerber_lp or None)
self._location = utils.toPoint(shape.get('location', [0, 0]))
class Shape():
"""
"""
def __init__(self, shape):
gerber_lp = None
mirror = False
self._shape_dict = shape
# Invert rotation so it's clock-wise. Inkscape is counter-clockwise and
# it's unclear to ma what's the "right" direction. clockwise makse more
# sense to me. This should be the only place to make the change.
self._inv_rotate = -1
self._rotate = shape.get('rotate') or 0
self._rotate *= self._inv_rotate
self._rotate_point = shape.get('rotate-point') or Point(0, 0)
self._scale = shape.get('scale') or 1
self._pour_buffer = shape.get('buffer-to-pour')
try:
self._type = shape.get('type')
except:
msg.error("Shapes must have a 'type' defined")
if self._type in ['rect', 'rectangle']:
path = svg.width_and_height_to_path(shape['width'],
shape['height'],
shape.get('radii'))
elif self._type in ['circ', 'circle', 'round']:
path = svg.circle_diameter_to_path(shape['diameter'])
elif self._type in ['drill']:
self._diameter = shape['diameter']
path = svg.drillPath(self._diameter)
elif self._type in ['text', 'string']:
try:
self._text = shape['value']
except KeyError:
msg.error(
"Could not find the text to display. The text to be displayed should be defined in the 'value' field, for example, 'value': 'DEADBEEF\\nhar\\nhar'"
)
# Get the fon'ts name
font = shape.get('font-family') or config.stl['layout'][
'defaults']['font-family']
# Search for the font SVG in these paths
paths = [
os.path.join(config.cfg['base-dir']),
os.path.join(os.path.dirname(os.path.realpath(__file__)), '..')
]
font_filename = "%s.svg" % font
filenames = ''
font_data = None
for path in paths:
filename = os.path.join(path, config.cfg['locations']['fonts'],
font_filename)
filenames += " %s \n" % filename
if os.path.isfile(filename):
font_data = et.ElementTree(file=filename)
break
if font_data == None:
msg.error(
"Couldn't find style file %s. Looked for it here:\n%s" %
(font_filename, filenames))
try:
fs = shape['font-size']
except:
msg.error(
"A 'font-size' attribute must be specified for a 'text' type"
)
ls = shape.get('letter-spacing') or '0mm'
lh = shape.get('line-height') or fs
font_size, letter_spacing, line_height = utils.getTextParams(
fs, ls, lh)
# With the units-per-em we can figure out the scale factor
# to use for the desired font size
units_per_em = float(
font_data.find("//n:font-face",
namespaces={
'n': config.cfg['namespace']['svg']
}).get('units-per-em')) or 1000
self._scale = font_size / units_per_em
# Get the path to use. This returns the path without
# scaling, which will be applied later, in the same manner
# as to the other shape types
path, gerber_lp = utils.textToPath(font_data, self._text,
letter_spacing, line_height,
self._scale)
# In the case where the text is an outline/stroke instead
# of a fill we get rid of the gerber_lp
if shape.get('style') == 'stroke':
gerber_lp = None
self._rotate += 180
elif self._type in ['path']:
path = shape.get('value')
else:
msg.error("'%s' is not a recongnised shape type" % self._type)
self._path = SvgPath(path, gerber_lp)
self._path.transform(self._scale, self._rotate, self._rotate_point,
True)
self._gerber_lp = (shape.get('gerber-lp') or shape.get('gerber_lp')
or gerber_lp or None)
self._location = utils.toPoint(shape.get('location', [0, 0]))
def transformPath(self,
scale=1,
rotate=0,
rotate_point=Point(),
mirror=False,
add=False):
if add == False:
self._path.transform(scale, rotate * self._inv_rotate,
rotate_point, mirror)
else:
self._path.transform(scale * self._scale,
rotate * self._inv_rotate + self._rotate,
rotate_point + self._rotate_point, mirror)
def rotateLocation(self, angle, point=Point()):
"""
"""
self._location.rotate(angle, point)
def getRotation(self):
return self._rotate
def setRotation(self, rotate):
self._rotate = rotate
def getOriginalPath(self):
"""
Returns that original, unmodified path
"""
return self._path.getOriginal()
def getTransformedPath(self, mirrored=False):
if mirrored == True:
return self._path.getTransformedMirrored()
else:
return self._path.getTransformed()
def getWidth(self):
return self._path.getWidth()
def getHeight(self):
return self._path.getHeight()
def getGerberLP(self):
return self._gerber_lp
def setStyle(self, style):
"""
style: Style object
"""
self._style = style
def getStyle(self):
"""
Return the shape's style Style object
"""
return self._style
def getStyleString(self):
style = self._style.getStyleString()
return style
def getStyleType(self):
style = self._style.getStyleType()
return style
def getScale(self):
return self._scale
def getLocation(self):
return self._location
def setLocation(self, location):
self._location = location
def getParsedPath(self):
return self._parsed
def getPourBuffer(self):
return self._pour_buffer
def getType(self):
return self._type
def getText(self):
return self._text
def getDiameter(self):
return self._diameter
class Shape():
"""
"""
def __init__(self, shape):
gerber_lp = None
mirror = False
self._shape_dict = shape
# Invert rotation so it's clock-wise. Inkscape is counter-clockwise and
# it's unclear to ma what's the "right" direction. clockwise makse more
# sense to me. This should be the only place to make the change.
self._inv_rotate = -1
try:
self._type = shape.get('type')
except:
msg.error("Shapes must have a 'type' defined")
# A 'layer' type is a copy of the outline. Here we copy the
# outline shape and override the type
if self._type in ['layer']:
self._shape_dict = config.brd['outline'].get('shape').copy()
self._type = self._shape_dict.get('type')
self._place_mirrored = shape.get('mirror') or False
self._rotate = shape.get('rotate') or 0
self._rotate *= self._inv_rotate
self._rotate_point = shape.get('rotate-point') or Point(0,0)
self._scale = shape.get('scale') or 1
self._pour_buffer = shape.get('buffer-to-pour')
# A general purpose label field; intended for use for pad
# labels
self._label = None
if self._type in ['rect', 'rectangle']:
path = svg.width_and_height_to_path(self._shape_dict['width'],
self._shape_dict['height'],
self._shape_dict.get('radii'))
elif self._type in ['circ', 'circle', 'round']:
path = svg.circle_diameter_to_path(self._shape_dict['diameter'])
elif self._type in ['drill']:
self._diameter = self._shape_dict['diameter']
path = svg.drillPath(self._diameter)
elif self._type in ['text', 'string']:
try:
self._text = self._shape_dict['value']
except KeyError:
msg.error("Could not find the text to display. The text to be displayed should be defined in the 'value' field, for example, 'value': 'DEADBEEF\\nhar\\nhar'")
# Get the font's name
font = self._shape_dict.get('font-family') or config.stl['layout']['defaults']['font-family']
# Search for the font SVG in these paths
paths = [os.path.join(config.cfg['base-dir']),
os.path.join(os.path.dirname(os.path.realpath(__file__)), '..')]
font_filename = "%s.svg" % font
filenames = ''
font_data = None
for path in paths:
filename = os.path.join(path,
config.cfg['locations']['fonts'],
font_filename)
filenames += " %s \n" % filename
if os.path.isfile(filename):
font_data = et.ElementTree(file=filename)
break
if font_data == None:
msg.error("Couldn't find style file %s. Looked for it here:\n%s" % (font_filename, filenames))
try:
fs = self._shape_dict['font-size']
except:
msg.error("A 'font-size' attribute must be specified for a 'text' type")
ls = self._shape_dict.get('letter-spacing') or '0mm'
lh = self._shape_dict.get('line-height') or fs
font_size, letter_spacing, line_height = utils.getTextParams(fs,
ls,
lh)
# With the units-per-em we can figure out the scale factor
# to use for the desired font size
units_per_em = float(font_data.find("//n:font-face", namespaces={'n': config.cfg['namespace']['svg']}).get('units-per-em')) or 1000
self._scale = font_size/units_per_em
# Get the path to use. This returns the path without
# scaling, which will be applied later, in the same manner
# as to the other shape types
path, gerber_lp = utils.textToPath(font_data,
self._text,
letter_spacing,
line_height,
self._scale)
# In the case where the text is an outline/stroke instead
# of a fill we get rid of the gerber_lp
if self._shape_dict.get('style') == 'stroke':
gerber_lp = None
self._rotate += 180
elif self._type in ['path']:
path = self._shape_dict.get('value')
else:
msg.error("'%s' is not a recongnised shape type" % self._type)
self._path = SvgPath(path, gerber_lp)
self._path.transform(scale=self._scale,
rotate_angle=self._rotate,
rotate_point=self._rotate_point,
mirror=self._place_mirrored)
self._gerber_lp = (shape.get('gerber-lp') or
shape.get('gerber_lp') or
gerber_lp or
None)
self._location = utils.toPoint(shape.get('location', [0, 0]))
def transformPath(self, scale=1, rotate=0, rotate_point=Point(), mirror=False, add=False):
if add == False:
self._path.transform(scale,
rotate*self._inv_rotate,
rotate_point,
mirror)
else:
self._path.transform(scale*self._scale,
rotate*self._inv_rotate+self._rotate,
rotate_point+self._rotate_point,
mirror)
def rotateLocation(self, angle, point=Point()):
"""
"""
self._location.rotate(angle, point)
def getRotation(self):
return self._rotate
def setRotation(self, rotate):
self._rotate = rotate
def getOriginalPath(self):
"""
Returns that original, unmodified path
"""
return self._path.getOriginal()
def getTransformedPath(self, mirrored=False):
if mirrored == True:
return self._path.getTransformedMirrored()
else:
return self._path.getTransformed()
def getWidth(self):
return self._path.getWidth()
def getHeight(self):
return self._path.getHeight()
def getGerberLP(self):
return self._gerber_lp
def setStyle(self, style):
"""
style: Style object
"""
self._style = style
def getStyle(self):
"""
Return the shape's style Style object
"""
return self._style
def getStyleString(self):
style = self._style.getStyleString()
return style
def getStyleType(self):
style = self._style.getStyleType()
return style
def getScale(self):
return self._scale
def getLocation(self):
return self._location
def setLocation(self, location):
self._location = location
def getParsedPath(self):
return self._parsed
def getPourBuffer(self):
return self._pour_buffer
def getType(self):
return self._type
def getText(self):
return self._text
def getDiameter(self):
return self._diameter
def setLabel(self, label):
self._label = label
def getLabel(self):
return self._label
def getMirrorPlacement(self):
return self._place_mirrored