python-object-one-ne

发布时间：2019-07-13 11:37:12编辑：auto阅读（1467）

    #!/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')
     

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