def draw_line(self, gc, x1, y1, x2, y2): if isnan(x1) or isnan(x2) or isnan(y1) or isnan(y2): return d = self.dpi_factor self.check_gc(gc) self.file.output(d*x1, d*y1, Op.moveto, d*x2, d*y2, Op.lineto, self.gc.paint())
def draw_line(self, gc, x1, y1, x2, y2):
if isnan(x1) or isnan(x2) or isnan(y1) or isnan(y2):
return
d = self.dpi_factor
self.check_gc(gc)
self.file.output(d * x1, d * y1, Op.moveto, d * x2, d * y2, Op.lineto,
self.gc.paint())
def draw_lines(self, gc, x, y, transform=None):
d = self.dpi_factor
self.check_gc(gc)
if transform is not None:
x, y = transform.seq_x_y(x, y)
nan_at = isnan(x) | isnan(y)
next_op = Op.moveto
for i in range(len(x)):
if nan_at[i]:
next_op = Op.moveto
else:
self.file.output(d * x[i], d * y[i], next_op)
next_op = Op.lineto
self.file.output(self.gc.paint())
def draw_lines(self, gc, x, y, transform=None): d = self.dpi_factor self.check_gc(gc) if transform is not None: x, y = transform.seq_x_y(x, y) nan_at = isnan(x) | isnan(y) next_op = Op.moveto for i in range(len(x)): if nan_at[i]: next_op = Op.moveto else: self.file.output(d*x[i], d*y[i], next_op) next_op = Op.lineto self.file.output(self.gc.paint())
def draw_markers(self, gc, path, rgbFace, x, y, trans):
self.check_gc(gc, rgbFace)
fillp = rgbFace is not None
marker = self.file.markerObject(path, fillp, self.gc._linewidth)
x, y = trans.numerix_x_y(asarray(x), asarray(y))
x, y = self.dpi_factor * x, self.dpi_factor * y
nan_at = isnan(x) | isnan(y)
self.file.output(Op.gsave)
ox, oy = 0, 0
for i in range(len(x)):
if nan_at[i]: continue
dx, dy, ox, oy = x[i] - ox, y[i] - oy, x[i], y[i]
self.file.output(1, 0, 0, 1, dx, dy, Op.concat_matrix, marker,
Op.use_xobject)
self.file.output(Op.grestore)
def draw_markers(self, gc, path, rgbFace, x, y, trans): self.check_gc(gc, rgbFace) fillp = rgbFace is not None marker = self.file.markerObject(path, fillp, self.gc._linewidth) x, y = trans.numerix_x_y(asarray(x), asarray(y)) x, y = self.dpi_factor * x, self.dpi_factor * y nan_at = isnan(x) | isnan(y) self.file.output(Op.gsave) ox, oy = 0, 0 for i in range(len(x)): if nan_at[i]: continue dx, dy, ox, oy = x[i]-ox, y[i]-oy, x[i], y[i] self.file.output(1, 0, 0, 1, dx, dy, Op.concat_matrix, marker, Op.use_xobject) self.file.output(Op.grestore)
def pdfRepr(obj):
"""Map Python objects to PDF syntax."""
# Some objects defined later have their own pdfRepr method.
if 'pdfRepr' in dir(obj):
return obj.pdfRepr()
# Floats. PDF does not have exponential notation (1.0e-10) so we
# need to use %f with some precision. Perhaps the precision
# should adapt to the magnitude of the number?
elif isinstance(obj, float):
if isnan(obj) or obj in (-infinity, infinity):
raise ValueError, "Can only output finite numbers in PDF"
r = "%.10f" % obj
return r.rstrip('0').rstrip('.')
# Integers are written as such.
elif isinstance(obj, (int, long)):
return "%d" % obj
# Strings are written in parentheses, with backslashes and parens
# escaped. Actually balanced parens are allowed, but it is
# simpler to escape them all. TODO: cut long strings into lines;
# I believe there is some maximum line length in PDF.
elif is_string_like(obj):
return '(' + re.sub(r'([\\()])', r'\\\1', obj) + ')'
# Dictionaries. The keys must be PDF names, so if we find strings
# there, we make Name objects from them. The values may be
# anything, so the caller must ensure that PDF names are
# represented as Name objects.
elif isinstance(obj, dict):
r = ["<<"]
r.extend([
"%s %s" % (Name(key).pdfRepr(), pdfRepr(val))
for key, val in obj.items()
])
r.append(">>")
return fill(r)
# Lists.
elif isinstance(obj, (list, tuple)):
r = ["["]
r.extend([pdfRepr(val) for val in obj])
r.append("]")
return fill(r)
# Booleans.
elif isinstance(obj, bool):
return ['false', 'true'][obj]
# The null keyword.
elif obj is None:
return 'null'
# A date.
elif isinstance(obj, datetime):
r = obj.strftime('D:%Y%m%d%H%M%S')
if time.daylight: z = time.altzone
else: z = time.timezone
if z == 0: r += 'Z'
elif z < 0: r += "+%02d'%02d'" % ((-z) // 3600, (-z) % 3600)
else: r += "-%02d'%02d'" % (z // 3600, z % 3600)
return pdfRepr(r)
else:
raise TypeError, \
"Don't know a PDF representation for %s objects." \
% type(obj)
def pdfRepr(obj):
"""Map Python objects to PDF syntax."""
# Some objects defined later have their own pdfRepr method.
if 'pdfRepr' in dir(obj):
return obj.pdfRepr()
# Floats. PDF does not have exponential notation (1.0e-10) so we
# need to use %f with some precision. Perhaps the precision
# should adapt to the magnitude of the number?
elif isinstance(obj, float):
if isnan(obj) or obj in (-infinity, infinity):
raise ValueError, "Can only output finite numbers in PDF"
r = "%.10f" % obj
return r.rstrip('0').rstrip('.')
# Integers are written as such.
elif isinstance(obj, (int, long)):
return "%d" % obj
# Strings are written in parentheses, with backslashes and parens
# escaped. Actually balanced parens are allowed, but it is
# simpler to escape them all. TODO: cut long strings into lines;
# I believe there is some maximum line length in PDF.
elif is_string_like(obj):
return '(' + re.sub(r'([\\()])', r'\\\1', obj) + ')'
# Dictionaries. The keys must be PDF names, so if we find strings
# there, we make Name objects from them. The values may be
# anything, so the caller must ensure that PDF names are
# represented as Name objects.
elif isinstance(obj, dict):
r = ["<<"]
r.extend(["%s %s" % (Name(key).pdfRepr(),
pdfRepr(val))
for key, val in obj.items()])
r.append(">>")
return fill(r)
# Lists.
elif isinstance(obj, (list, tuple)):
r = ["["]
r.extend([pdfRepr(val) for val in obj])
r.append("]")
return fill(r)
# Booleans.
elif isinstance(obj, bool):
return ['false', 'true'][obj]
# The null keyword.
elif obj is None:
return 'null'
# A date.
elif isinstance(obj, datetime):
r = obj.strftime('D:%Y%m%d%H%M%S')
if time.daylight: z = time.altzone
else: z = time.timezone
if z == 0: r += 'Z'
elif z < 0: r += "+%02d'%02d'" % ((-z)//3600, (-z)%3600)
else: r += "-%02d'%02d'" % (z//3600, z%3600)
return pdfRepr(r)
else:
raise TypeError, \
"Don't know a PDF representation for %s objects." \
% type(obj)
