我需要做一个这样的功能。 (Python 3.3顺便说一下)Python:cTurtle与列表清单
为程序写合同,文档字符串和实现plotEarthquakeData在给定日期和世界地图上的点之间绘制两个日期并绘制来自USGS的所有地震数据。你可以使用cTurtle库中的程序点,它取得了大小和颜色。您可以使用4的乘积和点的大小的大小,而使用正确颜色的深度。 bgpic程序对于将世界地图图像置于背景中很有用,而setWorldCoordinates程序可以帮助您更轻松地绘制点。 假设整个地图从左到右显示-180到180度,从下到上显示-90到90度。
plotEarthquakeData("2013/06/01", "2013/06/04") should look like this
我有这个至今。在它下面的是我已经写过的函数,它也将在plotEarthquakeData函数中使用。
import cTurtle
def plotEarthquakeData(date1,date2):
""" takes two dates and plots all the earthquake data from USGS between the
given dates with dots on the world map."""
myTurtle = cTurtle.Turtle()
myTurtle.bgpic('map.gif')
myTurtle.setWorldCoordinates(-180,-90,180,90)
data = parseEarthquakeData(date1,date2)
for i in range (len(data[1])):
myTurtle.goto(data[0][i], data[1][i])
myturtle.dot(4*data[2][i],colorCode(data[3][1]))
-
def colorCode(depth):
"""takes the depth of an earthquake and returns the corresponding color for
the earthquake."""
if depth<=33:
return "orange"
elif depth<=70:
return "yellow"
elif depth <=150:
return "green"
elif depth<=300:
return "blue"
elif depth <=500:
return "purple"
else:
return "red"
-
import urllib.request
def parseEarthquakeData(date1, date2):
dataFile = urllib.request.urlopen("http://neic.usgs.gov/neis/gis/qed.asc")
latList = []
longList = []
magList = []
depthList = []
count =0
for aline in dataFile:
aline = aline.decode('ascii')
splitData = aline.split(',')
count = count+1
if count>=2:
if (betweenDates (splitData[0],date1,date2)):
latList.append(splitData[2])
longList.append(splitData[3])
magList.append(splitData[4])
depthList.append(splitData[5])
finalList=[]
finalList.append(latList)
finalList.append(longList)
finalList.append(magList)
finalList.append(depthList)
return finalList
当我尝试运行plotEarthquakeData我得到这个错误,我不知道做什么。
plotEarthquakeData("2013/06/01","2013/06/04")
Traceback (most recent call last):
File "<pyshell#2>", line 1, in <module>
plotEarthquakeData("2013/06/01","2013/06/04")
File "C:\Python33\plotEarthquakes.py", line 89, in plotEarthquakeData
myTurtle.goto(data[0][i], data[1][i])
File "C:\Python33\lib\site-packages\cTurtle.py", line 1295, in setpos
self._goto(_Vec(pos, y))
File "C:\Python33\lib\site-packages\cTurtle.py", line 2255, in _goto
diff = end-start
File "C:\Python33\lib\site-packages\cTurtle.py", line 274, in __sub__
return _Vec(self[0]-other[0], self[1]-other[1])
TypeError: unsupported operand type(s) for -: 'str' and 'float'
所以任何帮助,试图让我明白我要去哪里错了将会非常赞赏