def do_scn(self):
try:
r, g, b = self.pop(self.ncs.ncomponents)
r, g, b = rint(r * 255), rint(g * 255), rint(b * 255)
self.ncs.color = '#%02x%02x%02x' % (r, g, b)
except:
pass
def plouffe(f, epsilon=1e-6):
if f < 0:
r = plouffe(-f)
if isinstance(r, str):
return '-' + r
return f
if f != 0 and math2.is_integer(1 / f, epsilon):
f = '1/%d' % math2.rint(1 / f)
elif math2.is_integer(f * f, epsilon):
f = 'sqrt(%d)' % math2.rint(f * f)
return f
def plouffe(f, epsilon=1e-6):
if f < 0:
r = plouffe(-f)
if isinstance(r, str):
return '-' + r
return f
if f != 0 and math2.is_integer(1 / f, epsilon):
f = '1/%d' % math2.rint(1 / f)
elif math2.is_integer(f * f, epsilon):
f = 'sqrt(%d)' % math2.rint(f * f)
return f
def pil(self):
"""
:return: a sequence of integers, or a string containing a binary
representation of the palette.
In both cases, the palette contents should be ordered (r, g, b, r, g, b, …).
The palette can contain up to 768 entries (3*256).
If a shorter palette is given, it is padded with zeros.
#http://effbot.org/zone/creating-palette-images.htm
"""
res=[]
for c in self.values():
r,g,b=c.rgb
res.append(math2.rint(r*255))
res.append(math2.rint(g*255))
res.append(math2.rint(b*255))
return res
def pil(self):
"""
:return: a sequence of integers, or a string containing a binary
representation of the palette.
In both cases, the palette contents should be ordered (r, g, b, r, g, b, …).
The palette can contain up to 768 entries (3*256).
If a shorter palette is given, it is padded with zeros.
#http://effbot.org/zone/creating-palette-images.htm
"""
res = []
for c in self.values():
r, g, b = c.rgb
res.append(math2.rint(r * 255))
res.append(math2.rint(g * 255))
res.append(math2.rint(b * 255))
return res
def disk(radius, antialias=PILImage.ANTIALIAS):
from skimage.draw import circle, circle_perimeter_aa
size = math2.rint(2 * radius)
size = (size, size)
img = np.zeros(size, dtype=np.double)
rr, cc = circle(radius, radius, radius)
img[rr, cc] = 1
# antialiased perimeter works only with ints ?
"""
rr, cc, val = circle_perimeter_aa(radius,radius,radius)
img[rr, cc] = val
"""
return Image(img)
def timef(t,fmt='%H:%M:%S'):
'''converts something to a time. See datetimef'''
if isinstance(t,dt.datetime):
return t.time()
if isinstance(t,dt.time):
return t
if isinstance(t,(six.integer_types,float)):
if not '%d' in fmt: # t is in hours
s=math2.rint(t*3600)
h,m=divmod(s,3600)
m,s=divmod(m,60)
return time(hour=h,minute=m,second=s)
else: # t is in days (Excel
pass
return datetimef(t,fmt=fmt).time()
def timef(t, fmt='%H:%M:%S'):
'''converts something to a time. See datetimef'''
if isinstance(t, dt.datetime):
return t.time()
if isinstance(t, dt.time):
return t
if isinstance(t, (six.integer_types, float)):
if not '%d' in fmt: # t is in hours
s = math2.rint(t * 3600)
h, m = divmod(s, 3600)
m, s = divmod(m, 60)
return time(hour=h, minute=m, second=s)
else: # t is in days (Excel
pass
return datetimef(t, fmt=fmt).time()
def __init__(self, f, context=default_context):
'''
:param f: function or operator, Expr to copy construct, or formula string
'''
self.context = context
if isinstance(f, Expr): # copy constructor
self.body = f.body
return
elif isinstance(f, ast.AST):
self.body = f
return
elif inspect.isfunction(f):
try:
f = get_function_source(f)
except ValueError:
f = '%s(x)' % f.__name__
elif isinstance(f, collections.Callable): # builtin function
f = '%s(x)' % f.__name__
elif f in ('True', 'False'):
f = bool(f == 'True')
if type(f) is bool:
self.body = ast.Num(f)
return
if type(f) is float: # try to beautify it
if math2.is_integer(f):
f = math2.rint(f)
else:
f = plouffe(f)
if math2.is_number(f): # store it with full precision
self.body = ast.Num(f)
return
# accept ^ as power operator rather than xor ...
f = str(f).replace('^', '**')
self.body = compile(f, 'Expr', 'eval', ast.PyCF_ONLY_AST).body
def __init__(self, f, context=default_context):
'''
:param f: function or operator, Expr to copy construct, or formula string
'''
self.context = context
if isinstance(f, Expr): # copy constructor
self.body = f.body
return
elif isinstance(f, ast.AST):
self.body = f
return
elif inspect.isfunction(f):
try:
f = get_function_source(f)
except ValueError:
f = '%s(x)' % f.__name__
elif isinstance(f, collections.Callable): # builtin function
f = '%s(x)' % f.__name__
elif f in ('True', 'False'):
f = bool(f == 'True')
if type(f) is bool:
self.body = ast.Num(f)
return
if type(f) is float: # try to beautify it
if math2.is_integer(f):
f = math2.rint(f)
else:
f = plouffe(f)
if math2.is_number(f): # store it with full precision
self.body = ast.Num(f)
return
f = str(f).replace('^', '**') # accept ^ as power operator rather than xor ...
self.body = compile(f, 'Expr', 'eval', ast.PyCF_ONLY_AST).body
def do_sc(self):
r, g, b = self.pop(self.scs.ncomponents)
r, g, b = rint(r * 255), rint(g * 255), rint(b * 255)
self.scs.color = '#%02x%02x%02x' % (r, g, b)
def do_RG(self, r, g, b):
from pdfminer.pdfcolor import LITERAL_DEVICE_RGB
self.do_CS(LITERAL_DEVICE_RGB)
r, g, b = rint(r * 255), rint(g * 255), rint(b * 255)
self.scs.color = '#%02x%02x%02x' % (r, g, b)
