def get_pie_image(width, height, x, y, datas, lables, _colors):
"""
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"""
from reportlab.graphics.charts.piecharts import Pie
drawing = Drawing(width, height)
pc = Pie()
pc.width = 80
pc.height = 80
pc.x = x
pc.y = y
pc.data = datas
pc.labels = lables
pc.slices.strokeWidth = 0.5
pc.startAngle = 90
pc.checkLabelOverlap = True
pc.sideLabels = True
pc.sideLabelsOffset = 0.1
pc.direction = 'clockwise'
for i in range(len(lables)):
pc.slices[i].fontName = "msyh"
pc.slices[i].fontSize = 3
pc.slices[i].labelRadius = 3
pc.slices[i].popout = 5
pc.slices[i].fillColor = _colors[i]
drawing.add(pc)
return drawing
def pie_chart(data_for_pie):
d = Drawing(400, 400)
pc = Pie()
pc.x = 100
pc.y = 210
pc.width = 170
pc.height = 170
pc.sideLabels = True
pc.sideLabelsOffset = 0.05
car_name_lst = []
car_sales_lst = []
car_price_lst = []
data_for_pie = data_for_pie[1:]
data_for_pie = sorted(data_for_pie, key=itemgetter(3),
reverse=True) # so i can show 10 most popular cars
for i in data_for_pie:
car_name = i[1]
car_name_lst.append(car_name)
car_sales = i[3]
car_sales_lst.append(car_sales)
car_price = float(i[2].strip(
"$")) #by default all the prices are in '', for example '18731.76'
car_price_lst.append(car_price)
pc.data = car_sales_lst[:10]
pc.labels = list(set(
car_name_lst[:10])) # by using set i wont have similar items in list
d.add(pc, '')
"""have to done this because in task i have to calculate revenue on Xaxis and car name on Yaxis"""
revenue_calculation_1 = car_sales_lst[:10]
revenue_calculation_2 = car_price_lst[:10]
car_revenue_list = []
for i in range(len(car_price_lst[:10])):
reven = revenue_calculation_1[i] * revenue_calculation_2[i]
car_revenue_list.append(
int(reven)) #using int because its many digits after ","
"""bar chart """
data = [tuple(car_revenue_list)
] #for some reason bar chart accepts only [[]] or [()]
bc = VerticalBarChart()
bc.x = 50
bc.y = 0
bc.height = 125
bc.width = 300
bc.data = data
bc.strokeColor = colors.black
bc.valueAxis.valueMin = 7000000
bc.valueAxis.valueMax = 23000000
bc.valueAxis.valueStep = 1000000
bc.categoryAxis.labels.boxAnchor = 'ne'
bc.categoryAxis.labels.dx = 8
bc.categoryAxis.labels.dy = -2
bc.categoryAxis.labels.angle = 30
bc.categoryAxis.categoryNames = list(set(car_name_lst[:10]))
d.add(bc)
return d
def torta(datos):
tamanio = datos["tamanio"]
data = datos["data"]
labels = datos["labels"]
colores = datos["colores"]
titulo = datos["titulo"]
grafico = Pie()
grafico.x = 10
grafico.y = 10
grafico.startAngle = 45
grafico.width = tamanio
grafico.height = tamanio
grafico.data = data
grafico.labels = labels
grafico.slices.fontName = "Helvetica"
grafico.slices.fontSize = FONTSIZE
grafico.simpleLabels = False
grafico.sideLabels = 1
grafico.sideLabelsOffset = 0.075
grafico.slices.label_simple_pointer = False
grafico.slices.label_pointer_elbowLength = 0.5
grafico.slices.label_pointer_piePad = 3
grafico.slices.label_pointer_edgePad = 3
grafico.slices.label_pointer_strokeColor = colors.black
grafico.slices.label_pointer_strokeWidth = 0.75
grafico.slices.strokeWidth=1.5
grafico.slices.strokeColor=colors.white
for i in range(len(colores)):
grafico.slices[i].fillColor = colors.HexColor(colores[i])
retorno = crearDrawing(grafico)
if titulo:
etiqueta = Label()
etiqueta.fontSize = FONTSIZE
etiqueta.fontName = "Helvetica-Bold"
etiqueta.setText(titulo)
etiquetar(retorno, etiqueta, tamanio/2.0, 0.0)
return retorno
car_name = i[1]
car_name_lst.append(car_name)
car_sales = i[3]
car_sales_lst.append(car_sales)
car_price = float(i[2].strip(
"$")) #by default all the prices are in '', for example '18731.76
car_price_lst.append(car_price)
d = Drawing(400, 400)
pc = Pie()
pc.x = 100
pc.y = 240
pc.width = 130
pc.height = 130
pc.sideLabels = True
pc.sideLabelsOffset = 0.05
pc.data = car_sales_lst[:10]
pc.labels = list(set(car_name_lst[:10]))
d.add(pc, '')
revenue_calculation_1 = car_sales_lst[:10]
revenue_calculation_2 = car_price_lst[:10]
car_revenue_list = []
for i in range(len(car_price_lst[:10])):
reven = revenue_calculation_1[i] * revenue_calculation_2[i]
car_revenue_list.append(
int(reven)) #using int because its many digits after ","
#print(car_revenue_list)
bc = VerticalBarChart()
