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我們有一個代碼,可以在地圖上的位置上繪製各個類別的名稱。現在圈子和文字是一種顏色。我們如何按類別獲得不同顏色的他們?例如:類別花園:藍色,類別石材:灰色。如何給每個類別一個顏色?
到目前爲止代碼:
size(1500,800)
background(1)
nofill()
stroke('#f91')
pen(.2)
fill('#f91', 0.05)
rotate(90)
font("Avenir", "bold", 10)
align('left')
def mapValue(value, fromMin, fromMax, toMin, toMax):
# Figure out how 'wide' each range is
fromSpan = fromMax - fromMin
toSpan = toMax - toMin
# Convert the from range into a 0-1 range (float)
valueScaled = float(value - fromMin)/float(fromSpan)
# Convert the 0-1 range into a value in the to range.
return toMin + (valueScaled * toSpan)
def xOfDot(lon):
return mapValue(lon, -100, 100, 0, WIDTH)
def yOfDot(lat):
return mapValue(lat, -90, 90, HEIGHT, 0)
with open('theft-alerts.json', 'r') as inputFile:
data = json.load(inputFile)
print len(data)
artworksPerCity = {}
for stolenArt in data:
if stolenArt.has_key('Category'):
city = stolenArt['Category']
if stolenArt.has_key('nItemsStolen'):
numbersStolen = int(stolenArt['nItemsStolen'])
if artworksPerCity.has_key(city):
# Adjust the value stored for this city
artworksPerCity[city] = artworksPerCity[city] + numbersStolen
else:
# Create new key with new value
artworksPerCity[city] = numbersStolen
# Draw circle on the map
radius = artworksPerCity[city] /2
x = xOfDot(stolenArt['Lon'])
y = yOfDot(stolenArt['Lat'])
arc(x, y, radius)
text(city, x, y)
print artworksPerCity
對於一個明確的答案,你將需要描述你正在使用的圖形庫。你在這個問題上有一堆漂亮無用的標籤(例如,沒有看到「json」),請將它們替換爲相關的標籤! – Blckknght