/usr/lib/python2.7/dist-packages/pychart/line_plot.py is in python-pychart 1.39-7.1.
This file is owned by root:root, with mode 0o644.
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# Copyright (C) 2000-2005 by Yasushi Saito (yasushi.saito@gmail.com)
#
# Jockey is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2, or (at your option) any
# later version.
#
# Jockey 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 General Public License
# for more details.
#
import tick_mark
import line_style
import pychart_util
import error_bar
import chart_object
import legend
import object_set
import line_plot_doc
import theme
from pychart_types import *
from types import *
default_width = 1.2
line_style_itr = None
_keys = {
'data' : (AnyType, None, pychart_util.data_desc),
'label': (StringType, '???', pychart_util.label_desc),
'data_label_offset': (CoordType, (0, 5),
"""The location of data labels relative to the sample point. Meaningful only when data_label_format != None."""),
'data_label_format': (FormatType, None,
"""The format string for the label printed
beside a sample point.
It can be a `printf' style format string, or
a two-parameter function that takes the (x, y)
values and returns a string. """
+ pychart_util.string_desc),
'xcol' : (IntType, 0, pychart_util.xcol_desc),
'ycol': (IntType, 1, pychart_util.ycol_desc),
'y_error_minus_col': (IntType, 2,
"""The column (within "data") from which the depth of the errorbar is extracted. Meaningful only when error_bar != None. <<error_bar>>"""),
'y_error_plus_col': (IntType, -1,
"""The column (within "data") from which the height of the errorbar is extracted. Meaningful only when error_bar != None. <<error_bar>>"""),
'y_qerror_minus_col': (IntType, -1, '<<error_bar>>'),
'y_qerror_plus_col': (IntType, -1, '<<error_bar>>'),
'line_style': (line_style.T, lambda: line_style_itr.next(), pychart_util.line_desc,
"By default, a style is picked from standard styles round-robin. <<line_style>>"),
'tick_mark': (tick_mark.T, None, pychart_util.tick_mark_desc),
'error_bar': (error_bar.T, None,
'The style of the error bar. <<error_bar>>'),
}
class T(chart_object.T):
__doc__ = line_plot_doc.doc
keys = _keys
def check_integrity(self):
assert chart_object.T.check_integrity(self)
##AUTOMATICALLY GENERATED
##END AUTOMATICALLY GENERATED
def get_data_range(self, which):
if which == 'X':
return pychart_util.get_data_range(self.data, self.xcol)
else:
return pychart_util.get_data_range(self.data, self.ycol)
def get_legend_entry(self):
if self.label:
line_style = self.line_style
if not line_style and self.error_bar:
line_style = getattr(self.error_bar, 'line_style', None) or \
getattr(self.error_bar, 'hline_style', None) or \
getattr(self.error_bar, 'vline_style', None)
if not line_style:
raise Exception, 'Line plot has label, but an empty line style and error bar.'
return legend.Entry(line_style=line_style,
tick_mark=self.tick_mark,
fill_style=None,
label=self.label)
return None
def draw(self, ar, can):
# Draw the line
clipbox = theme.adjust_bounding_box([ar.loc[0], ar.loc[1],
ar.loc[0] + ar.size[0],
ar.loc[1] + ar.size[1]]);
can.clip(clipbox[0],clipbox[1],clipbox[2],clipbox[3])
if self.line_style:
points = []
for pair in self.data:
yval = pychart_util.get_sample_val(pair, self.ycol)
xval = pair[self.xcol]
if None not in (xval, yval):
points.append((ar.x_pos(xval), ar.y_pos(yval)))
can.lines(self.line_style, points)
can.endclip()
# Draw tick marks and error bars
can.clip(ar.loc[0] - 10, ar.loc[1] - 10,
ar.loc[0] + ar.size[0] + 10,
ar.loc[1] + ar.size[1] + 10)
for pair in self.data:
x = pair[self.xcol]
y = pychart_util.get_sample_val(pair, self.ycol)
if None in (x, y): continue
x_pos = ar.x_pos(x)
y_pos = ar.y_pos(y)
if self.error_bar:
plus = pair[self.y_error_plus_col or self.y_error_minus_col]
minus = pair[self.y_error_minus_col or self.y_error_plus_col]
if self.y_qerror_minus_col or self.y_qerror_plus_col:
q_plus = pair[self.y_qerror_plus_col or self.y_qerror_minus_col]
q_minus = pair[self.y_qerror_minus_col or self.y_qerror_plus_col]
if None not in (minus,plus,q_minus,q_plus):
self.error_bar.draw(can, (x_pos, y_pos),
ar.y_pos(y - minus),
ar.y_pos(y + plus),
ar.y_pos(y - q_minus),
ar.y_pos(y + q_plus))
else:
if None not in (minus,plus): #PDS
self.error_bar.draw(can, (x_pos, y_pos),
ar.y_pos(y - minus),
ar.y_pos(y + plus))
if self.tick_mark:
self.tick_mark.draw(can, x_pos, y_pos)
if self.data_label_format:
can.show(x_pos + self.data_label_offset[0],
y_pos + self.data_label_offset[1],
'/hC' + pychart_util.apply_format(self.data_label_format, (x, y), 1))
can.endclip()
def init():
global line_style_itr
line_styles = object_set.T()
for org_style in line_style.standards.list():
style = line_style.T(width = default_width, color = org_style.color,
dash = org_style.dash)
line_styles.add(style)
line_style_itr = line_styles.iterate()
theme.add_reinitialization_hook(init)
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