1 Side Labelled Pie Chart
class pietests(_DrawingEditorMixin,Drawing): def __init__(self,width=400,height=200,*args,**kw): Drawing.__init__(self,width,height,*args,**kw) self._add(self,Pie(),name='pie',validate=None,desc=None) self.pie.sideLabels = 1 self.pie.labels = ['Label 1', 'Label 2', 'Label 3', 'Label 4', 'Label 5'] self.pie.data = [20, 10, 5, 5, 5] self.pie.width = 140 self.pie.height = 140 self.pie.y = 35 self.pie.x = 125
2 Customized Labels for Pie Chart
#Autogenerated by ReportLab guiedit do not editfrom reportlab.graphics.charts.piecharts import Piefrom reportlab.lib.colors import darkcyan, blue, cyanfrom reportlab.graphics.charts.legends import Legendfrom reportlab.graphics.shapes import Drawing, _DrawingEditorMixinfrom reportlab.lib.styles import black, whitefrom reportlab.graphics.charts.textlabels import Labelclass Drawing_000(_DrawingEditorMixin,Drawing): def __init__(self,width=400,height=200,*args,**kw): Drawing.__init__(self,width,height,*args,**kw) self._add(self,Pie(),name=None,validate=None,desc=None) # Set the size and location of the chart self.contents[0].width = 120 self.contents[0].height = 120 self.contents[0].y = 40 self.contents[0].x = 130 # Fill in the chart with sample data and labels self.contents[0].data = [1, 2, 1.8, 4, 1, 8] self.contents[0].labels = ['Label1','Label2','Label3','Label4','Label5','Label6','Label7'] # Make the slices pop out and add a border to the slices self.contents[0].slices.popout = 5 self.contents[0].slices.strokeWidth = 1 # Set the font size and position the label self.contents[0].slices.fontSize = 14 self.contents[0].slices.labelRadius = 1.25 # Turn off simple labels so we can use customized labels self.contents[0].simpleLabels = 0 # Define a simple pointer for all labels self.contents[0].slices.label_simple_pointer = 1 # Define a first label with a black border, # white text and dark cyan background self.contents[0].slices[0].label_boxStrokeColor = black self.contents[0].slices[0].fontColor = white self.contents[0].slices[0].label_boxFillColor = darkcyan # Change the anchor point of the label box self.contents[0].slices[0].label_boxAnchor = 's' # Turn off pointer for the third label, change the text color self.contents[0].slices[2].label_simple_pointer = 0 self.contents[0].slices[2].fontColor = blue # and position it closer to the chart self.contents[0].slices[2].labelRadius = 1.05 # Turn off pointer for the fourth label # and position it within the chart self.contents[0].slices[3].label_simple_pointer = 0 self.contents[0].slices[3].labelRadius = 0.25 # Define a fifth label with a black border, text padding # and position it closer to the chart self.contents[0].slices[4].label_boxStrokeColor = black self.contents[0].slices[4].label_height = 22 self.contents[0].slices[4].label_topPadding = 2 self.contents[0].slices[4].label_leftPadding = 6 self.contents[0].slices[4].label_rightPadding = 6 self.contents[0].slices[4].labelRadius = 1.15 # Change font size for the sixth label self.contents[0].slices[5].fontSize = 20if __name__=="__main__": #NORUNTESTS Drawing_000().save(formats=['png'],outDir='.',fnRoot=None)
3 Simple Pie Chart
# Autogenerated by ReportLab guiedit do not edit # this code was generated by Diagra, ReportLab Commercial drawing editor # It took only few clicks to generate the code.from reportlab.lib.pagesizes import cm, inchfrom reportlab.graphics.charts.piecharts import Piefrom reportlab.graphics.charts.legends import Legendfrom reportlab.lib.colors import Color, PCMYKColorfrom reportlab.graphics.shapes import Drawing, _DrawingEditorMixinclass MyDrawing(_DrawingEditorMixin,Drawing): def __init__(self,width=400,height=200,*args,**kw): apply(Drawing.__init__,(self,width,height)+args,kw) self._add(self,Pie(),name='chart',validate=None,desc=None) self.chart.x = 20 self.chart.y = (self.height-self.chart.height)/2 self.chart.slices.strokeWidth = 1 self.chart.slices.popout = 1 self.chart.direction = 'clockwise' self.chart.width = self.chart.height self.chart.startAngle = 90 self.chart.slices[0].popout = 10 self._add(self,Legend(),name='legend',validate=None,desc=None) self.legend.x = width - 20 self.legend.y = 0 self.legend.boxAnchor = 'se' self.legend.subCols[1].align = 'right' # these data can be read from external sources data = (9, 7, 6, 4, 2.5, 1.0) categories = ('A','B','C','D','E','F',) colors = [PCMYKColor(0,0,0,x) for x in (100,80,60,40,20,5)] self.chart.data = data self.chart.labels = map(str, self.chart.data) self.legend.colorNamePairs = zip(colors, categories) for i, color in enumerate(colors): self.chart.slices[i].fillColor = colorif __name__=="__main__": drawing = MyDrawing() # you can do all sorts of things to drawing, lets just save it as pdf and png. drawing.save(formats=['pdf','png'],outDir='.',fnRoot=None)
4 Just another ordinary pie chart
# Autogenerated by ReportLab guiedit do not edit # this code was generated by Diagra, ReportLab Commercial drawing editor # It took only few clicks to generate the code.from reportlab.lib.pagesizes import cm, inchfrom reportlab.graphics.charts.piecharts import Piefrom reportlab.graphics.charts.legends import Legendfrom reportlab.lib.colors import Color, PCMYKColorfrom reportlab.graphics.shapes import Drawing, _DrawingEditorMixinclass MyDrawing(_DrawingEditorMixin,Drawing): def __init__(self,width=400,height=200,*args,**kw): apply(Drawing.__init__,(self,width,height)+args,kw) self._add(self,Pie(),name='chart',validate=None,desc=None) self.chart.x = 20 self.chart.y = (self.height-self.chart.height)/2 self.chart.slices.strokeWidth = 1 self.chart.slices.popout = 1 self.chart.direction = 'clockwise' self.chart.width = self.chart.height self.chart.startAngle = 90 self._add(self,Legend(),name='legend',validate=None,desc=None) self.legend.x = width - 20 self.legend.y = 0 self.legend.boxAnchor = 'se' self.legend.subCols[1].align = 'right' self.chart.height = 99 self.chart.width = 99 self.legend.alignment = 'right' self.legend.columnMaximum = 9 self.legend.fontSize = 13 # these data can be read from external sources data = (5, 4, 3, 2, 1) categories = ('sale','marketing','travel','health','misc') colors = [PCMYKColor(100,50,30,x) for x in (50,40,30,20,10)] self.chart.data = data self.chart.labels = map(str, self.chart.data) self.legend.colorNamePairs = zip(colors, categories) for i, color in enumerate(colors): self.chart.slices[i].fillColor = colorif __name__=="__main__": #NORUNTESTS MyDrawing().save(formats=['pdf','png'],outDir='.',fnRoot=None)
5 A breakdown pie chart
#Autogenerated by ReportLab guiedit do not editfrom reportlab.graphics.charts.piecharts import Piefrom reportlab.lib.colors import black, red, purple, green, maroon, brown, pink, white, HexColorfrom reportlab.graphics.charts.legends import Legendfrom reportlab.graphics.shapes import Drawing, _DrawingEditorMixinfrom reportlab.lib.validators import Autofrom reportlab.lib.colors import HexColor, blackpdf_chart_colors = [ HexColor("#0000e5"), HexColor("#1f1feb"), HexColor("#5757f0"), HexColor("#8f8ff5"), HexColor("#c7c7fa"), HexColor("#f5c2c2"), HexColor("#eb8585"), HexColor("#e04747"), HexColor("#d60a0a"), HexColor("#cc0000"), HexColor("#ff0000"), ]def setItems(n, obj, attr, values): m = len(values) i = m // n for j in xrange(n): setattr(obj[j],attr,values[j*i % m])class BreakdownPieDrawing(_DrawingEditorMixin,Drawing): def __init__(self,width=400,height=200,*args,**kw): apply(Drawing.__init__,(self,width,height)+args,kw) # adding a pie chart to the drawing self._add(self,Pie(),name='pie',validate=None,desc=None) self.pie.width = 150 self.pie.height = self.pie.width self.pie.x = 20 self.pie.y = (height-self.pie.height)/2 self.pie.data = [26.90,13.30,11.10,9.40,8.50,7.80,7.00,6.20,8.80,1.00] self.pie.labels = ['Financials','Energy','Health Care','Telecoms','Consumer','Consumer 2','Industrials','Materials','Other','Liquid Assets'] self.pie.simpleLabels = 1 self.pie.slices.label_visible = 0 self.pie.slices.fontColor = None self.pie.slices.strokeColor = white self.pie.slices.strokeWidth = 1 # adding legend self._add(self,Legend(),name='legend',validate=None,desc=None) self.legend.x = 200 self.legend.y = height/2 self.legend.dx = 8 self.legend.dy = 8 self.legend.fontName = 'Helvetica' self.legend.fontSize = 7 self.legend.boxAnchor = 'w' self.legend.columnMaximum = 10 self.legend.strokeWidth = 1 self.legend.strokeColor = black self.legend.deltax = 75 self.legend.deltay = 10 self.legend.autoXPadding = 5 self.legend.yGap = 0 self.legend.dxTextSpace = 5 self.legend.alignment = 'right' self.legend.dividerLines = 1|2|4 self.legend.dividerOffsY = 4.5 self.legend.subCols.rpad = 30 n = len(self.pie.data) setItems(n,self.pie.slices,'fillColor',pdf_chart_colors) self.legend.colorNamePairs = [(self.pie.slices[i].fillColor, (self.pie.labels[i][0:20], '%0.2f' % self.pie.data[i])) for i in xrange(n)]if __name__=="__main__": #NORUNTESTS drawing = BreakdownPieDrawing() # the drawing will be saved as pdf and png below, you could do other things with it obviously. drawing.save(formats=['pdf','png'],outDir='.',fnRoot=None)
例子转自：http://www.reportlab.com/snippets/
