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#!/usr/bin/env python
#
# x13c.c
#
# Pie chart demo.
import math
import sys
import os
module_dir = "@MODULE_DIR@"
if module_dir[0] == '@':
module_dir = os.getcwd ()
sys.path.insert (0, module_dir)
text = ["Maurice",
"Randy",
"Mark",
"Steve",
"Warner"]
# main
#
# Does a simple pie chart.
def main(w):
## # Parse and process command line arguments
##
## pl.ParseOpts(sys.argv, pl.PARSE_FULL)
##
## # Initialize plplot
##
## pl.init()
w.plenv(0., 10., 0., 10., 1, -2)
w.plcol0(2)
per = [10, 32, 12, 30, 16]
theta0 = 0.
dthet = 2 * math.pi / 500
for i in range(5):
x = [5.]
y = [5.]
theta1 = theta0 + 2 * math.pi * per[i] / 100.
if i == 4:
theta1 = 2 * math.pi
theta = theta0
while theta <= theta1:
x.append(5 + 3 * math.cos(theta))
y.append(5 + 3 * math.sin(theta))
theta = theta + dthet
w.plcol0(i + 1)
w.plpsty((i + 3) % 8 + 1)
w.plfill(x, y)
w.plcol0(1)
w.plline(x, y)
just = (theta0 + theta1) / 2.
dx = .25 * math.cos(just)
dy = .25 * math.sin(just)
if just < math.pi / 2 or just > 3 * math.pi / 2:
just = 0.
else:
just = 1.
mid = len(x) / 2
w.plptex((x[mid] + dx), (y[mid] + dy), 1.0, 0.0, just, text[i])
theta0 = theta - dthet
w.plfont(2)
w.plschr(0., 1.3)
w.plptex(5.0, 9.0, 1.0, 0.0, 0.5, "Percentage of Sales")
# Don't forget to call PLEND to finish off!
w.pleop()
## pl.end()
##
##main()
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