python2.7---太阳黑子图形程序

太阳黑子图形程序

from reportlab.lib import colors
from reportlab.graphics.shapes import *
from reportlab.graphics import renderPDF

data=[
# Year Month Predicted Hign Low
	(2007,8,113.2,114.2,112.2),
	(2007,9,112.8,115.8,109.8),
	(2007,10,111.0,116.0,106.0),
	(2007,11,109.8,116.8,102.8),
	(2007,12,107.3,115.3,99.3),
	(2008,1,105.2,114.2,96.2),
	(2008,2,104.1,114.1,94.1),
	(2008,3,99.9,110.9,88.9),
	(2008,4,94.8,106.8,82.8),
	(2008,5,91.2,104.2,78.2),
]

drawing = Drawing(200,150)

pred = [row[2]-40 for row in data]
high = [row[3]-40 for row in data]
low = [row[4]-40 for row in data]
times = [200*((row[0] + row[1]/12.0) - 2007)-110 for row in data]

drawing.add(PolyLine(zip(times,pred),strokeColor=colors.blue))
drawing.add(PolyLine(zip(times,high),strokeColor=colors.red))
drawing.add(PolyLine(zip(times,low),strokeColor=colors.green))
drawing.add(String(65,115,'Sunspots',fontSize=18,fillColor=colors.red))

renderPDF.drawToFile(drawing,'report1.pdf','Sunspots')