def subtest(sa, d):
pc = Pie()
pc.direction = d
pc.startAngle = sa
arcs = _makeSideArcDefs(sa, d)
A = [x[1] for x in pc.makeAngles()]
arcsum = sum([a[2] - a[1] for a in arcs])
isum = intSum(arcs, A)
mi = max([a[2] - a[1] for a in arcs])
ni = min([a[2] - a[1] for a in arcs])
l = []
s = arcsum - 360
if s > 1e-8:
l.append("Arc length=%s != 360" % s)
s = abs(isum - 360)
if s > 1e-8:
l.append("interval intersection length=%s != 360" % s)
if mi > 360:
l.append("max interval intersection length=%s >360" % mi)
if ni < 0:
l.append("min interval intersection length=%s <0" % ni)
if l:
l.append("sa: %s d: %s" % (sa, d))
l.append("sidearcs: %s" % str(arcs))
l.append("Angles: %s" % A)
raise ValueError("piecharts._makeSideArcDefs failure\n%s" % "\n".join(l))
def get_pie_image(width, height, x, y, datas, lables, _colors):
"""
��ɱ�״ͼ
@param width: ͼƬ���
@param height: ͼƬ�Ŀ��
@param x: ͼƬ��x���
@param y: ͼƬ��y���
@param datas: ���ͼƬ�����
@param lables: ��״ͼ���������
"""
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 pdf_drawPie(self,
pie_data,
pie_lable=[],
colors=[],
x=805,
y=1650,
width=900,
height=900,
innerRadiusFraction=0.5):
'''
@example:
chart_data = [1212,66,585,225,36]
lable = ['dfd','sdd','trtr','rrrr','ytytyt']
self.pdf_drawPie(chart_data,lable)
'''
if len(pie_data) == 0 or sum(pie_data) == 0:
return
d = Drawing(200, 100)
pc = Pie()
pc.x = 65
pc.y = 65
pc.width = width
pc.height = height
pc.data = pie_data
pc.labels = pie_lable
pc.startAngle = 0
pc.sideLabels = 1
pc.simpleLabels = 0
if len(colors) != len(pie_data):
colors = []
for i in range(len(pie_data)):
colors.append(HexColor(self.randomcolor()))
for i in range(0, len(pie_data)):
pc.slices[i].fontSize = 40
pc.slices[i].fontName = FONT
pc.slices[i].fillColor = colors[i]
pc.slices[i].strokeColor = colors[i]
pc.innerRadiusFraction = innerRadiusFraction
d.add(pc)
d.drawOn(self.pdf_page_object, x, y)
def subtest(sa,d):
pc = Pie()
pc.direction=d
pc.startAngle=sa
arcs = _makeSideArcDefs(sa,d)
A = [x[1] for x in pc.makeAngles()]
arcsum = sum([a[2]-a[1] for a in arcs])
isum = intSum(arcs,A)
mi = max([a[2]-a[1] for a in arcs])
ni = min([a[2]-a[1] for a in arcs])
l = []
s = (arcsum-360)
if s>1e-8: l.append('Arc length=%s != 360' % s)
s = abs(isum-360)
if s>1e-8: l.append('interval intersection length=%s != 360' % s)
if mi>360: l.append('max interval intersection length=%s >360' % mi)
if ni<0: l.append('min interval intersection length=%s <0' % ni)
if l:
l.append('sa: %s d: %s' % (sa,d))
l.append('sidearcs: %s' % str(arcs))
l.append('Angles: %s' % A)
raise ValueError('piecharts._makeSideArcDefs failure\n%s' % '\n'.join(l))
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