[reportlab-users] Piechart labels

[Simon Riek]

Thank you!

On Wed, October 10, 2007 6:17 pm, Robin Becker wrote:

> Simon Riek wrote:

>> I am experimenting with pie-charts also atm and tried to work with

>> pointers but when I set the pointerLabelMode to not None, I get very

>> weird

>> results. The piechart is deformed and the labels are drawn all over the

>> place with no obvious rules for placement (doesn't matter if

>> simpleLabels

>> or not, nor does checkLabelOverlap seem to matter). Does anyone have a

>> working example for pointers?

>>

>> Thanks in advance

>>

>> Simon

> ......

> not ideal, but working; this stuff was a nightmare and still doesn't work

> all

> that well.

>

> ######################

> from reportlab.graphics.charts.piecharts import Pie

> from reportlab.graphics.shapes import Drawing, _DrawingEditorMixin

>

> class Drawing_001(_DrawingEditorMixin,Drawing):

> 	def __init__(self,width=400,height=200,*args,**kw):

> 		apply(Drawing.__init__,(self,width,height)+args,kw)

> 		self._add(self,Pie(),name='pie',validate=None,desc=None)

> 		self.pie.pointerLabelMode='LeftRight'

> 		self.pie.labels            = ['a','b','c','d']

> 		self.pie.sameRadii         = True

> 		self.pie.pointerLabelMode='LeftAndRight'

> 		self.pie.slices.labelRadius               = 1.2

> 		self.pie.labels            = ['a', 'b', 'c', 'deee']

> 		self.pie.simpleLabels      = 0

> 		self.pie.slices.label_pointer_elbowLength = 5

> 		self.pie.slices.label_pointer_edgePad     = 5

> 		self.pie.slices.label_pointer_piePad      = 4

> 		self.pie.slices.label_textAnchor='boxauto'

> 		self.pie.width             = 200

> 		self.pie.height            = 200

> 		self.pie.pointerLabelMode='LeftRight'

>

> if __name__=="__main__": #NORUNTESTS

> 	Drawing_001().save(formats=['pdf'],outDir='.',fnRoot=None)

> ######################

> --

> Robin Becker

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