/usr/share/pyshared/pychart/range_plot.py is in python-pychart 1.39-7build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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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 line_style
import pychart_util
import chart_object
import fill_style
import legend
import range_plot_doc
from pychart_types import *
from types import *
from scaling import *
class T(chart_object.T):
__doc__ = range_plot_doc.doc
keys = {
"data" : (AnyType, None, pychart_util.data_desc),
"label": (StringType, "???", pychart_util.label_desc),
"xcol" : (IntType, 0, pychart_util.xcol_desc),
"min_col": (IntType, 1,
"The lower bound of the sweep is extracted from "
+ "this column of data."),
"max_col": (IntType, 2,
"The upper bound of the sweep is extracted from "
+ "this column of data."),
"line_style": (line_style.T, line_style.default,
"The style of the boundary line."),
"fill_style": (fill_style.T, fill_style.default,
""),
}
##AUTOMATICALLY GENERATED
##END AUTOMATICALLY GENERATED
def check_integrity(self):
chart_object.T.check_integrity(self)
def get_data_range(self, which):
if which == 'X':
return pychart_util.get_data_range(self.data, self.xcol)
else:
ymax = (pychart_util.get_data_range(self.data, self.max_col))[1]
ymin = (pychart_util.get_data_range(self.data, self.min_col))[0]
return (ymin, ymax)
def get_legend_entry(self):
if self.label:
return legend.Entry(line_style=self.line_style,
fill_style=self.fill_style,
label=self.label)
return None
def draw(self, ar, can):
prevPair = None
xmin=999999
xmax=-999999
ymin=999999
ymax=-999999
# Draw the boundary in a single stroke.
can.gsave()
can.newpath()
for pair in self.data:
x = pair[self.xcol]
y = pychart_util.get_sample_val(pair, self.max_col)
if y == None:
continue
xmin = min(xmin, ar.x_pos(x))
xmax = max(xmax, ar.x_pos(x))
ymin = min(ymin, ar.y_pos(y))
ymax = max(ymax, ar.y_pos(y))
if prevPair != None:
can.lineto(xscale(ar.x_pos(x)), yscale(ar.y_pos(y)))
else:
can.moveto(xscale(ar.x_pos(x)), yscale(ar.y_pos(y)))
prevPair = pair
for i in range(len(self.data)-1, -1, -1):
pair = self.data[i]
x = pair[self.xcol]
y = pychart_util.get_sample_val(pair, self.min_col)
if None in (x, y):
continue
xmin = min(xmin, ar.x_pos(x))
xmax = max(xmax, ar.x_pos(x))
ymin = min(ymin, ar.y_pos(y))
ymax = max(ymax, ar.y_pos(y))
can.lineto(xscale(ar.x_pos(x)), yscale(ar.y_pos(y)))
can.closepath()
# create a clip region, and fill it.
can.clip_sub()
can.fill_with_pattern(self.fill_style, xmin, ymin, xmax, ymax)
can.grestore()
if self.line_style:
# draw the boundary.
prevPair = None
can.newpath()
can.set_line_style(self.line_style)
for pair in self.data:
x = pair[self.xcol]
y = pychart_util.get_sample_val(pair, self.min_col)
if None in (x, y):
continue
if prevPair != None:
can.lineto(xscale(ar.x_pos(x)), yscale(ar.y_pos(y)))
else:
can.moveto(xscale(ar.x_pos(x)), yscale(ar.y_pos(y)))
prevPair = pair
can.stroke()
prevPair = None
can.newpath()
can.set_line_style(self.line_style)
for pair in self.data:
x = pair[self.xcol]
y = pychart_util.get_sample_val(pair, self.max_col)
if y == None:
continue
if prevPair != None:
can.lineto(xscale(ar.x_pos(x)), yscale(ar.y_pos(y)))
else:
can.moveto(xscale(ar.x_pos(x)), yscale(ar.y_pos(y)))
prevPair = pair
can.stroke()
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