python-object-one-ne

#!/usr/bin/env python2.6
 # Written by Tony.yang
 # 2012-12-28 
 
 from urllib import urlopen
 from reportlab.graphics.shapes import *
 from reportlab.graphics.charts.lineplots import LinePlot
 from reportlab.graphics.charts.textlabels import Label
 from reportlab.graphics import renderPDF
 
 URL = 'http://www.swpc.noaa.gov/ftpdir/weekly/Predict.txt'
 COMMENT_CHARS = '#:'
 
 # Create a Drawing mode
 drawing = Drawing(400, 200)
 data = []
 
 for line in urlopen(URL).readlines():
         if not line.isspace() and not line[0] in COMMENT_CHARS:
                 data.append([float(n) for n in line.split()])
 
 # define property
 pred = [row[2] for row in data]
 high = [row[3] for row in data]
 low = [row[4] for row in data]
 times = [row[0] + row[1]/12.0 for row in data]
 
 #
 lp = LinePlot()
 lp.x = 50
 lp.y = 50
 lp.height = 125 
 lp.width = 300 
 lp.data = [zip(times, pred), zip(times, high), zip(times, low)]
 lp.lines[0].strokeColor = colors.blue
 lp.lines[1].strokeColor = colors.red
 lp.lines[2].strokeColor = colors.green
 
 drawing.add(lp)
 drawing.add(String(250, 150, 'Sunspots', fontSize=14, fillColor=colors.red))
 
 renderPDF.drawToFile(drawing, 'Tony_report_new.pdf', 'Sunspots')