/usr/lib/python2.7/dist-packages/plplot.py is in python-plplot 5.13.0+dfsg-6ubuntu2.
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# Copyright 2002-2016 Alan W. Irwin
# Copyright 2008 Andrew Ross
# This file is part of PLplot.
# PLplot is free software; you can redistribute it and/or modify
# it under the terms of the GNU Library General Public License as published by
# the Free Software Foundation; version 2 of the License.
# PLplot is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Library General Public License for more details.
# You should have received a copy of the GNU Library General Public License
# along with the file PLplot; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
# Wrap raw python interface to C API, plplotc, with this user-friendly version
# which implements some useful variations of the argument lists.
from plplotc import *
import types
import numpy
# Redefine plcont to have the user-friendly interface
# Allowable syntaxes:
# plcont( z, [kx, lx, ky, ly], clev, [pltr, [pltr_data] or [xg, yg, [wrap]]])
# N.B. Brackets represent options here and not python lists!
# All unbracketed arguments within brackets must all be present or all be
# missing. Furthermore, z must be a 2D array, kx, lx, ky, ly must all be
# integers, clev must be a 1D array, pltr can be a function reference or
# string, pltr_data is an optional arbitrary data object, xg and yg are
# optional 1D or 2D arrays and wrap (which only works if xg and yg
# are specified) is 0, 1, or 2.
# If pltr is a string it must be either "pltr0", "pltr1", or "pltr2" to
# refer to those built-in transformation functions. Alternatively, the
# function names pltr0, pltr1, or pltr2 may be specified to refer to
# the built-in transformation functions or an arbitrary name for a
# user-defined transformation function may be specified. Such functions
# must have x, y, and optional pltr_data arguments and return arbitrarily
# transformed x' and y' in a tuple. The built-in pltr's such as pltr1 and
# pltr2 use pltr_data = tuple(xg, yg), and for this oft-used case (and any
# other user-defined pltr which uses a tuple of two arrays for pltr_data),
# we also provide optional xg and yg arguments separately as an alternative
# to the tuple method of providing these data. Note, that pltr_data cannot
# be in the argument list if xg and yg are there, and vice versa. Also note
# that the built-in pltr0 and some user-defined transformation functions
# ignore the auxiliary pltr_data (or the alternative xg and yg) in which
# case neither pltr_data nor xg and yg need to be specified.
_plcont = plcont
def plcont(z, *args):
z = numpy.asarray(z)
if len(z.shape) != 2:
raise ValueError("Expected 2D z array")
if len(args) > 4 and isinstance(args[0], int):
for i in range(1,4):
if not isinstance(args[i], int):
raise ValueError("Expected 4 ints for kx,lx,ky,ly")
else:
# these 4 args are the kx, lx, ky, ly ints
ifdefault_range = 0
kx,lx,ky,ly = args[0:4]
args = args[4:]
else:
ifdefault_range = 1
if len(args) > 0:
clev = numpy.asarray(args[0])
if len(clev.shape) !=1:
raise ValueError("Expected 1D clev array")
args = args[1:]
else:
raise ValueError("Missing clev argument")
if len(args) > 0 and (isinstance(args[0], str) or \
type(args[0]) == types.FunctionType or \
type(args[0]) == types.BuiltinFunctionType):
pltr = args[0]
# Handle the string names for the callbacks though specifying the
# built-in function name directly (without the surrounding quotes)
# or specifying any user-defined transformation function
# (following above rules) works fine too.
if isinstance(pltr, str):
if pltr == "pltr0":
pltr = pltr0
elif pltr == "pltr1":
pltr = pltr1
elif pltr == "pltr2":
pltr = pltr2
else:
raise ValueError("pltr string is unrecognized")
args = args[1:]
# Handle pltr_data or separate xg, yg, [wrap]
if len(args) == 0:
# Default pltr_data
pltr_data = None
elif len(args) == 1:
#Must be pltr_data
pltr_data = args[0]
args = args[1:]
elif len(args) >= 2:
xg = numpy.asarray(args[0])
if len(xg.shape) < 1 or len(xg.shape) > 2:
raise ValueError("xg must be 1D or 2D array")
yg = numpy.asarray(args[1])
if len(yg.shape) != len(xg.shape):
raise ValueError("yg must have same number of dimensions as xg")
args = args[2:]
# wrap only relevant if xg and yg specified.
if len(args) > 0:
if isinstance(args[0], int):
wrap = args[0]
args = args[1:]
if len(xg.shape) == 2 and len(yg.shape) == 2 and \
z.shape == xg.shape and z.shape == yg.shape:
# handle wrap
if wrap == 1:
z = numpy.resize(z, (z.shape[0]+1, z.shape[1]))
xg = numpy.resize(xg, (xg.shape[0]+1, xg.shape[1]))
yg = numpy.resize(yg, (yg.shape[0]+1, yg.shape[1]))
elif wrap == 2:
z = numpy.transpose(numpy.resize( \
numpy.transpose(z), (z.shape[1]+1, z.shape[0])))
xg = numpy.transpose(numpy.resize( \
numpy.transpose(xg), (xg.shape[1]+1, xg.shape[0])))
yg = numpy.transpose(numpy.resize( \
numpy.transpose(yg), (yg.shape[1]+1, yg.shape[0])))
elif wrap != 0:
raise ValueError("Invalid wrap specifier, must be 0, 1 or 2.")
elif wrap != 0:
raise ValueError("Non-zero wrap specified and xg and yg are not 2D arrays")
else:
raise ValueError("Specified wrap is not an integer")
pltr_data = (xg, yg)
else:
# default is identity transformation
pltr = pltr0
pltr_data = None
if len(args) > 0:
raise ValueError("Too many arguments for plcont")
if ifdefault_range:
# Default is to take full range (still using fortran convention
# for indices which is embedded in the PLplot library API)
kx = 1
lx = z.shape[0]
ky = 1
ly = z.shape[1]
_plcont(z, kx, lx, ky, ly, clev, pltr, pltr_data)
plcont.__doc__ = _plcont.__doc__
# Redefine plvect to have the user-friendly interface
# Allowable syntaxes:
# plvect( u, v, scaling, [pltr, [pltr_data] or [xg, yg, [wrap]]])
_plvect = plvect
def plvect(u, v, *args):
u = numpy.asarray(u)
v = numpy.asarray(v)
if len(u.shape) != 2:
raise ValueError("Expected 2D u array")
if len(v.shape) != 2:
raise ValueError("Expected 2D v array")
if (u.shape[0] != v.shape[0]) or (u.shape[1] != v.shape[1]) :
raise ValueError("Expected u and v arrays to be the same dimensions")
if len(args) > 0 and (type(args[0]) in [float, numpy.float64]):
scaling = args[0]
args = args[1:]
else:
raise ValueError("Missing scaling argument")
if len(args) > 0 and (isinstance(args[0], str) or \
type(args[0]) == types.FunctionType or \
type(args[0]) == types.BuiltinFunctionType):
pltr = args[0]
# Handle the string names for the callbacks though specifying the
# built-in function name directly (without the surrounding quotes)
# or specifying any user-defined transformation function
# (following above rules) works fine too.
if isinstance(pltr, str):
if pltr == "pltr0":
pltr = pltr0
elif pltr == "pltr1":
pltr = pltr1
elif pltr == "pltr2":
pltr = pltr2
else:
raise ValueError("pltr string is unrecognized")
args = args[1:]
# Handle pltr_data or separate xg, yg, [wrap]
if len(args) == 0:
# Default pltr_data
pltr_data = None
elif len(args) == 1:
#Must be pltr_data
pltr_data = args[0]
args = args[1:]
elif len(args) >= 2:
xg = numpy.asarray(args[0])
if len(xg.shape) < 1 or len(xg.shape) > 2:
raise ValueError("xg must be 1D or 2D array")
yg = numpy.asarray(args[1])
if len(yg.shape) != len(xg.shape):
raise ValueError("yg must have same number of dimensions as xg")
args = args[2:]
# wrap only relevant if xg and yg specified.
if len(args) > 0:
if isinstance(args[0], int):
wrap = args[0]
args = args[1:]
if len(xg.shape) == 2 and len(yg.shape) == 2 and \
u.shape == xg.shape and u.shape == yg.shape:
# handle wrap
if wrap == 1:
u = numpy.resize(u, (u.shape[0]+1, u.shape[1]))
v = numpy.resize(v, (v.shape[0]+1, v.shape[1]))
xg = numpy.resize(xg, (xg.shape[0]+1, xg.shape[1]))
yg = numpy.resize(yg, (yg.shape[0]+1, yg.shape[1]))
elif wrap == 2:
u = numpy.transpose(numpy.resize( \
numpy.transpose(u), (u.shape[1]+1, u.shape[0])))
v = numpy.transpose(numpy.resize( \
numpy.transpose(v), (v.shape[1]+1, v.shape[0])))
xg = numpy.transpose(numpy.resize( \
numpy.transpose(xg), (xg.shape[1]+1, xg.shape[0])))
yg = numpy.transpose(numpy.resize( \
numpy.transpose(yg), (yg.shape[1]+1, yg.shape[0])))
elif wrap != 0:
raise ValueError("Invalid wrap specifier, must be 0, 1 or 2.")
elif wrap != 0:
raise ValueError("Non-zero wrap specified and xg and yg are not 2D arrays")
else:
raise ValueError("Specified wrap is not an integer")
pltr_data = (xg, yg)
else:
# default is identity transformation
pltr = pltr0
pltr_data = None
if len(args) > 0:
raise ValueError("Too many arguments for plvect")
_plvect(u, v, scaling, pltr, pltr_data)
plvect.__doc__ = _plvect.__doc__
# Redefine plimagefr to have the user-friendly interface
# Allowable syntaxes:
# plimagefr( img, xmin, xmax, ymin, ymax, zmin, zmax, valuemin, valuemax, [pltr, [pltr_data] or [xg, yg, [wrap]]])
_plimagefr = plimagefr
def plimagefr(img, *args):
img = numpy.asarray(img)
if len(img.shape) != 2:
raise ValueError("Expected 2D img array")
if len(args) >= 8 :
for i in range(8) :
if (not isinstance(args[i], float)) and \
type(args[i]) != numpy.float64 and \
not isinstance(args[i], int):
raise ValueError("Expected 8 numbers for xmin, xmax, ymin, ymax, zmin, zmax, valuemin, valuemax")
else:
# These 8 args are xmin, xmax, ymin, ymax, zmin, zmax, valuemin, valuemax
xmin, xmax, ymin, ymax, zmin, zmax, valuemin, valuemax = args[0:8]
args = args[8:]
else:
raise ValueError("Expected 8 numbers for xmin, xmax, ymin, ymax, zmin, zmax, valuemin, valuemax")
if len(args) > 0 and (isinstance(args[0], str) or \
type(args[0]) == types.FunctionType or \
type(args[0]) == types.BuiltinFunctionType):
pltr = args[0]
# Handle the string names for the callbacks though specifying the
# built-in function name directly (without the surrounding quotes)
# or specifying any user-defined transformation function
# (following above rules) works fine too.
if isinstance(pltr, str):
if pltr == "pltr0":
pltr = pltr0
elif pltr == "pltr1":
pltr = pltr1
elif pltr == "pltr2":
pltr = pltr2
else:
raise ValueError("pltr string is unrecognized")
args = args[1:]
# Handle pltr_data or separate xg, yg, [wrap]
if len(args) == 0:
# Default pltr_data
pltr_data = None
elif len(args) == 1:
#Must be pltr_data
pltr_data = args[0]
args = args[1:]
elif len(args) >= 2:
xg = numpy.asarray(args[0])
if len(xg.shape) < 1 or len(xg.shape) > 2:
raise ValueError("xg must be 1D or 2D array")
yg = numpy.asarray(args[1])
if len(yg.shape) != len(xg.shape):
raise ValueError("yg must have same number of dimensions as xg")
args = args[2:]
# wrap only relevant if xg and yg specified.
if len(args) > 0:
if isinstance(args[0], int):
wrap = args[0]
args = args[1:]
if len(xg.shape) == 2 and len(yg.shape) == 2 and \
img.shape[0] == xg.shape[0]-1 and img.shape[1] == xg.shape[1]-1:
# handle wrap
if wrap == 1:
img = numpy.resize(img, (img.shape[0]+1, u.shape[1]))
xg = numpy.resize(xg, (xg.shape[0]+1, xg.shape[1]))
yg = numpy.resize(yg, (yg.shape[0]+1, yg.shape[1]))
elif wrap == 2:
img = numpy.transpose(numpy.resize( \
numpy.transpose(img), (img.shape[1]+1, img.shape[0])))
xg = numpy.transpose(numpy.resize( \
numpy.transpose(xg), (xg.shape[1]+1, xg.shape[0])))
yg = numpy.transpose(numpy.resize( \
numpy.transpose(yg), (yg.shape[1]+1, yg.shape[0])))
elif wrap != 0:
raise ValueError("Invalid wrap specifier, must be 0, 1 or 2.")
elif wrap != 0:
raise ValueError("Non-zero wrap specified and xg and yg are not 2D arrays")
else:
raise ValueError("Specified wrap is not an integer")
pltr_data = (xg, yg)
else:
# default is NULL callback arguments.
pltr = None
pltr_data = None
if len(args) > 0:
raise ValueError("Too many arguments for plimagefr")
_plimagefr(img, xmin, xmax, ymin, ymax, zmin, zmax, valuemin, valuemax, pltr, pltr_data)
plimagefr.__doc__ = _plimagefr.__doc__
# Redefine plshades to have the user-friendly interface
# Allowable syntaxes:
# plshades(z, [xmin, xmax, ymin, ymax,] clev, \
# fill_width, [cont_color, cont_width,], rect, \
# [pltr, [pltr_data] or [xg, yg, [wrap]]])
_plshades = plshades
def plshades(z, *args):
z = numpy.asarray(z)
if len(z.shape) != 2:
raise ValueError("Expected 2D z array")
if len(args) > 4 and \
(type(args[0]) in [int, float, numpy.float64]) and \
(type(args[1]) in [int, float, numpy.float64]) and \
(type(args[2]) in [int, float, numpy.float64]) and \
(type(args[3]) in [int, float, numpy.float64]):
# These 4 args are xmin, xmax, ymin, ymax
xmin, xmax, ymin, ymax = args[0:4]
args = args[4:]
else:
# These values are ignored if pltr and pltr_data are defined in any case.
# So pick some convenient defaults that work for the pltr0, None case
xmin = -1.
xmax = 1.
ymin = -1.
ymax = 1.
# clev must be present.
if len(args) > 0:
clev = numpy.asarray(args[0])
if len(clev.shape) !=1:
raise ValueError("Expected 1D clev array")
args = args[1:]
else:
raise ValueError("Missing clev argument")
# fill_width must be present
if len(args) > 0 and (isinstance(args[0], float) or type(args[0]) == numpy.float64):
fill_width = args[0]
args = args[1:]
else:
raise ValueError("fill_width argument must be present and of types.FloatType or numpy.float64 type")
# cont_color and cont_width are optional.
if len(args) > 2 and \
isinstance(args[0], int) and \
(type(args[1]) in [float, numpy.float64]):
# These 2 args are
cont_color, cont_width = args[0:2]
args = args[2:]
else:
# Turn off contouring.
cont_color, cont_width = (0,0.)
# rect must be present.
if len(args) > 0 and isinstance(args[0], int):
rect = args[0]
args = args[1:]
else:
raise ValueError("Missing rect argument")
if len(args) > 0 and (type(args[0]) in [type(None), str, types.FunctionType, types.BuiltinFunctionType]):
pltr = args[0]
# Handle the string names for the callbacks though specifying the
# built-in function name directly (without the surrounding quotes)
# or specifying any user-defined transformation function
# (following above rules) works fine too.
if isinstance(pltr, str):
if pltr == "pltr0":
pltr = pltr0
elif pltr == "pltr1":
pltr = pltr1
elif pltr == "pltr2":
pltr = pltr2
else:
raise ValueError("pltr string is unrecognized")
args = args[1:]
# Handle pltr_data or separate xg, yg, [wrap]
if len(args) == 0:
# Default pltr_data
pltr_data = None
elif len(args) == 1:
#Must be pltr_data
pltr_data = args[0]
args = args[1:]
elif len(args) >= 2:
xg = numpy.asarray(args[0])
if len(xg.shape) < 1 or len(xg.shape) > 2:
raise ValueError("xg must be 1D or 2D array")
yg = numpy.asarray(args[1])
if len(yg.shape) != len(xg.shape):
raise ValueError("yg must have same number of dimensions as xg")
args = args[2:]
# wrap only relevant if xg and yg specified.
if len(args) > 0:
if isinstance(args[0], int):
wrap = args[0]
args = args[1:]
if len(xg.shape) == 2 and len(yg.shape) == 2 and \
z.shape == xg.shape and z.shape == yg.shape:
# handle wrap
if wrap == 1:
z = numpy.resize(z, (z.shape[0]+1, z.shape[1]))
xg = numpy.resize(xg, (xg.shape[0]+1, xg.shape[1]))
yg = numpy.resize(yg, (yg.shape[0]+1, yg.shape[1]))
elif wrap == 2:
z = numpy.transpose(numpy.resize( \
numpy.transpose(z), (z.shape[1]+1, z.shape[0])))
xg = numpy.transpose(numpy.resize( \
numpy.transpose(xg), (xg.shape[1]+1, xg.shape[0])))
yg = numpy.transpose(numpy.resize( \
numpy.transpose(yg), (yg.shape[1]+1, yg.shape[0])))
elif wrap != 0:
raise ValueError("Invalid wrap specifier, must be 0, 1 or 2.")
elif wrap != 0:
raise ValueError("Non-zero wrap specified and xg and yg are not 2D arrays")
else:
raise ValueError("Specified wrap is not an integer")
pltr_data = (xg, yg)
else:
# default is identity transformation
pltr = pltr0
pltr_data = None
if len(args) > 0:
raise ValueError("Too many arguments for plshades")
_plshades(z, xmin, xmax, ymin, ymax, clev, \
fill_width, cont_color, cont_width, rect, pltr, pltr_data)
plshades.__doc__ = _plshades.__doc__
# Redefine plshade to have the user-friendly interface
# Allowable syntaxes:
# _plshade(z, [xmin, xmax, ymin, ymax,] \
# shade_min, shade_max, sh_cmap, sh_color, sh_width, \
# [min_color, min_width, max_color, max_width,] rect, \
# [pltr, [pltr_data] or [xg, yg, [wrap]]])
_plshade = plshade
def plshade(z, *args):
z = numpy.asarray(z)
if len(z.shape) != 2:
raise ValueError("Expected 2D z array")
# Extra check on shade_min = float on end is absolutely necessary
# to unambiguously figure out where we are in the argument list.
if len(args) > 9 and \
(type(args[0]) in [int, float, numpy.float64]) and \
(type(args[1]) in [int, float, numpy.float64]) and \
(type(args[2]) in [int, float, numpy.float64]) and \
(type(args[3]) in [int, float, numpy.float64]) and \
(type(args[4]) in [float, numpy.float64]):
# These 4 args are xmin, xmax, ymin, ymax
xmin, xmax, ymin, ymax = args[0:4]
args = args[4:]
else:
# These values are ignored if pltr and pltr_data are defined in any case.
# So pick some convenient defaults that work for the pltr0, None case
xmin = -1.
xmax = 1.
ymin = -1.
ymax = 1.
# shade_min, shade_max, sh_cmap, sh_color, sh_width, must be present.
# sh_color can be either integer or float.
if len(args) > 5 and \
(type(args[0]) in [float, numpy.float64]) and \
(type(args[1]) in [float, numpy.float64]) and \
isinstance(args[2], int) and \
(type(args[0]) in [int, float, numpy.float64]) and \
(type(args[0]) in [float, numpy.float64]):
shade_min, shade_max, sh_cmap, sh_color, sh_width = args[0:5]
args = args[5:]
else:
raise ValueError("shade_min, shade_max, sh_cmap, sh_color, sh_width, must be present with sh_cmap of types.IntType type and the rest of types.FloatType or numpy.float64 type")
# min_color, min_width, max_color, max_width are optional.
if len(args) > 4 and \
isinstance(args[0], int) and \
(type(args[1]) in [float, numpy.float64]) and \
isinstance(args[2], int) and \
(type(args[3]) in [float, numpy.float64]):
# These 4 args are
min_color, min_width, max_color, max_width = args[0:4]
args = args[4:]
else:
# Turn off boundary colouring
min_color, min_width, max_color, max_width = (0,0.,0,0.)
# rect must be present.
if len(args) > 0 and isinstance(args[0], int):
rect = args[0]
args = args[1:]
else:
raise ValueError("Missing rect argument")
if len(args) > 0 and (type(args[0]) in [type(None), str, types.FunctionType, types.BuiltinFunctionType]):
pltr = args[0]
# Handle the string names for the callbacks though specifying the
# built-in function name directly (without the surrounding quotes)
# or specifying any user-defined transformation function
# (following above rules) works fine too.
if isinstance(pltr, str):
if pltr == "pltr0":
pltr = pltr0
elif pltr == "pltr1":
pltr = pltr1
elif pltr == "pltr2":
pltr = pltr2
else:
raise ValueError("pltr string is unrecognized")
args = args[1:]
# Handle pltr_data or separate xg, yg, [wrap]
if len(args) == 0:
# Default pltr_data
pltr_data = None
elif len(args) == 1:
#Must be pltr_data
pltr_data = args[0]
args = args[1:]
elif len(args) >= 2:
xg = numpy.asarray(args[0])
if len(xg.shape) < 1 or len(xg.shape) > 2:
raise ValueError("xg must be 1D or 2D array")
yg = numpy.asarray(args[1])
if len(yg.shape) != len(xg.shape):
raise ValueError("yg must have same number of dimensions as xg")
args = args[2:]
# wrap only relevant if xg and yg specified.
if len(args) > 0:
if isinstance(args[0], int):
wrap = args[0]
args = args[1:]
if len(xg.shape) == 2 and len(yg.shape) == 2 and \
z.shape == xg.shape and z.shape == yg.shape:
# handle wrap
if wrap == 1:
z = numpy.resize(z, (z.shape[0]+1, z.shape[1]))
xg = numpy.resize(xg, (xg.shape[0]+1, xg.shape[1]))
yg = numpy.resize(yg, (yg.shape[0]+1, yg.shape[1]))
elif wrap == 2:
z = numpy.transpose(numpy.resize( \
numpy.transpose(z), (z.shape[1]+1, z.shape[0])))
xg = numpy.transpose(numpy.resize( \
numpy.transpose(xg), (xg.shape[1]+1, xg.shape[0])))
yg = numpy.transpose(numpy.resize( \
numpy.transpose(yg), (yg.shape[1]+1, yg.shape[0])))
elif wrap != 0:
raise ValueError("Invalid wrap specifier, must be 0, 1 or 2.")
elif wrap != 0:
raise ValueError("Non-zero wrap specified and xg and yg are not 2D arrays")
else:
raise ValueError("Specified wrap is not an integer")
pltr_data = (xg, yg)
else:
# default is identity transformation
pltr = pltr0
pltr_data = None
if len(args) > 0:
raise ValueError("Too many arguments for plshade")
_plshade(z, xmin, xmax, ymin, ymax, \
shade_min, shade_max, sh_cmap, sh_color, sh_width, \
min_color, min_width, max_color, max_width, rect, pltr, pltr_data)
plshade.__doc__ = _plshade.__doc__
# Redefine plscmap1l to have the user-friendly interface
# Allowable syntaxes:
# plscmap1l(itype, pos, coord1, coord2, coord3[, alt_hue_path])
_plscmap1l = plscmap1l
def plscmap1l(itype, pos, coord1, coord2, coord3, *args):
pos = numpy.asarray(pos)
if len(pos.shape) != 1:
raise ValueError("Expected 1D pos array")
if len(args) == 0:
# Default alt_hue_path
alt_hue_path = numpy.zeros(pos.shape[0]-1,dtype="int")
elif len(args) == 1:
alt_hue_path = numpy.asarray(args[0])
else:
raise ValueError("Too many arguments to plscmap1l")
_plscmap1l(itype, pos, coord1, coord2, coord3, alt_hue_path)
plscmap1l.__doc__ = _plscmap1l.__doc__
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