def vpprint(expr, **settings):
r"""Function for pretty printing of expressions generated in the
sympy.physics vector package.
Mainly used for expressions not inside a vector; the output of running
scripts and generating equations of motion. Takes the same options as
SymPy's pretty_print(); see that function for more information.
Parameters
==========
expr : valid SymPy object
SymPy expression to pretty print
settings : args
Same as those accepted by SymPy's pretty_print.
"""
pp = VectorPrettyPrinter(settings)
# Note that this is copied from sympy.printing.pretty.pretty_print:
# XXX: this is an ugly hack, but at least it works
use_unicode = pp._settings['use_unicode']
from sympy.printing.pretty.pretty_symbology import pretty_use_unicode
uflag = pretty_use_unicode(use_unicode)
try:
return pp.doprint(expr)
finally:
pretty_use_unicode(uflag)
def vpprint(expr, **settings):
r"""Function for pretty printing of expressions generated in the
sympy.physics vector package.
Mainly used for expressions not inside a vector; the output of running
scripts and generating equations of motion. Takes the same options as
SymPy's pretty_print(); see that function for more information.
Parameters
==========
expr : valid SymPy object
SymPy expression to pretty print
settings : args
Same as those accepted by SymPy's pretty_print.
"""
pp = VectorPrettyPrinter(settings)
# Note that this is copied from sympy.printing.pretty.pretty_print:
# XXX: this is an ugly hack, but at least it works
use_unicode = pp._settings['use_unicode']
from sympy.printing.pretty.pretty_symbology import pretty_use_unicode
uflag = pretty_use_unicode(use_unicode)
try:
return pp.doprint(expr)
finally:
pretty_use_unicode(uflag)
def print_caracas(expr, **settings):
settings['use_unicode'] = False
pp = CaracasPrettyPrinter(settings)
# breakpoint()
# XXX: this is an ugly hack, but at least it works
use_unicode = pp._settings['use_unicode']
uflag = pretty_use_unicode(use_unicode)
try:
return print(pp.doprint(expr))
finally:
pretty_use_unicode(uflag)
def render(self, *args, **kwargs):
ar = e.args # just to shorten things
settings = printer._settings if printer else {}
if printer:
use_unicode = printer._use_unicode
else:
from sympy.printing.pretty.pretty_symbology import (
pretty_use_unicode, )
use_unicode = pretty_use_unicode()
mpp = printer if printer else VectorPrettyPrinter(settings)
if len(ar) == 0:
return unicode(0)
bar = u"\N{CIRCLED TIMES}" if use_unicode else "|"
ol = [] # output list, to be concatenated to a string
for i, v in enumerate(ar):
# if the coef of the dyadic is 1, we skip the 1
if ar[i][0] == 1:
ol.extend([
u" + ",
mpp.doprint(ar[i][1]), bar,
mpp.doprint(ar[i][2])
])
# if the coef of the dyadic is -1, we skip the 1
elif ar[i][0] == -1:
ol.extend([
u" - ",
mpp.doprint(ar[i][1]), bar,
mpp.doprint(ar[i][2])
])
# If the coefficient of the dyadic is not 1 or -1,
# we might wrap it in parentheses, for readability.
elif ar[i][0] != 0:
if isinstance(ar[i][0], Add):
arg_str = mpp._print(ar[i][0]).parens()[0]
else:
arg_str = mpp.doprint(ar[i][0])
if arg_str.startswith(u"-"):
arg_str = arg_str[1:]
str_start = u" - "
else:
str_start = u" + "
ol.extend([
str_start,
arg_str,
u" ",
mpp.doprint(ar[i][1]),
bar,
mpp.doprint(ar[i][2]),
])
outstr = u"".join(ol)
if outstr.startswith(u" + "):
outstr = outstr[3:]
elif outstr.startswith(" "):
outstr = outstr[1:]
return outstr
def render(self, *args, **kwargs):
ar = e.args # just to shorten things
settings = printer._settings if printer else {}
if printer:
use_unicode = printer._use_unicode
else:
from sympy.printing.pretty.pretty_symbology import (
pretty_use_unicode)
use_unicode = pretty_use_unicode()
mpp = printer if printer else VectorPrettyPrinter(settings)
if len(ar) == 0:
return unicode(0)
bar = u"\N{CIRCLED TIMES}" if use_unicode else "|"
ol = [] # output list, to be concatenated to a string
for i, v in enumerate(ar):
# if the coef of the dyadic is 1, we skip the 1
if ar[i][0] == 1:
ol.extend([u" + ",
mpp.doprint(ar[i][1]),
bar,
mpp.doprint(ar[i][2])])
# if the coef of the dyadic is -1, we skip the 1
elif ar[i][0] == -1:
ol.extend([u" - ",
mpp.doprint(ar[i][1]),
bar,
mpp.doprint(ar[i][2])])
# If the coefficient of the dyadic is not 1 or -1,
# we might wrap it in parentheses, for readability.
elif ar[i][0] != 0:
if isinstance(ar[i][0], Add):
arg_str = mpp._print(
ar[i][0]).parens()[0]
else:
arg_str = mpp.doprint(ar[i][0])
if arg_str.startswith(u"-"):
arg_str = arg_str[1:]
str_start = u" - "
else:
str_start = u" + "
ol.extend([str_start, arg_str, u" ",
mpp.doprint(ar[i][1]),
bar,
mpp.doprint(ar[i][2])])
outstr = u"".join(ol)
if outstr.startswith(u" + "):
outstr = outstr[3:]
elif outstr.startswith(" "):
outstr = outstr[1:]
return outstr