1084 lines
42 KiB
Python
1084 lines
42 KiB
Python
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#Copyright ReportLab Europe Ltd. 2000-2004
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#see license.txt for license details
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#history http://www.reportlab.co.uk/cgi-bin/viewcvs.cgi/public/reportlab/trunk/reportlab/graphics/charts/lineplots.py
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"""This module defines a very preliminary Line Plot example.
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"""
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__version__=''' $Id: lineplots.py 2659 2005-08-18 10:28:12Z rgbecker $ '''
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import string, time
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from types import FunctionType
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from reportlab.lib import colors
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from reportlab.lib.validators import *
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from reportlab.lib.attrmap import *
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from reportlab.graphics.shapes import Drawing, Group, Rect, Line, PolyLine, Polygon, _SetKeyWordArgs
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from reportlab.graphics.widgetbase import Widget, TypedPropertyCollection, PropHolder
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from reportlab.graphics.charts.textlabels import Label
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from reportlab.graphics.charts.axes import XValueAxis, YValueAxis, AdjYValueAxis, NormalDateXValueAxis
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from reportlab.graphics.charts.utils import *
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from reportlab.graphics.widgets.markers import uSymbol2Symbol, isSymbol, makeMarker
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from reportlab.graphics.widgets.grids import Grid, DoubleGrid, ShadedRect, ShadedPolygon
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from reportlab.pdfbase.pdfmetrics import stringWidth, getFont
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from reportlab.graphics.charts.areas import PlotArea
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# This might be moved again from here...
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class LinePlotProperties(PropHolder):
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_attrMap = AttrMap(
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strokeWidth = AttrMapValue(isNumber, desc='Width of a line.'),
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strokeColor = AttrMapValue(isColorOrNone, desc='Color of a line.'),
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strokeDashArray = AttrMapValue(isListOfNumbersOrNone, desc='Dash array of a line.'),
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symbol = AttrMapValue(None, desc='Widget placed at data points.'),
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shader = AttrMapValue(None, desc='Shader Class.'),
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filler = AttrMapValue(None, desc='Filler Class.'),
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name = AttrMapValue(isStringOrNone, desc='Name of the line.'),
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)
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class Shader(_SetKeyWordArgs):
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_attrMap = AttrMap(BASE=PlotArea,
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vertical = AttrMapValue(isBoolean, desc='If true shade to x axis'),
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colors = AttrMapValue(SequenceOf(isColorOrNone,lo=2,hi=2), desc='(AxisColor, LineColor)'),
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)
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def shade(self, lp, g, rowNo, rowColor, row):
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c = [None,None]
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c = getattr(self,'colors',c) or c
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if not c[0]: c[0] = getattr(lp,'fillColor',colors.white)
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if not c[1]: c[1] = rowColor
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class NoFiller:
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def fill(self, lp, g, rowNo, rowColor, points):
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pass
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class Filler:
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'''mixin providing simple polygon fill'''
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_attrMap = AttrMap(
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fillColor = AttrMapValue(isColorOrNone, desc='filler interior color'),
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strokeColor = AttrMapValue(isColorOrNone, desc='filler edge color'),
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strokeWidth = AttrMapValue(isNumberOrNone, desc='filler edge width'),
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)
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def __init__(self,**kw):
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self.__dict__ = kw
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def fill(self, lp, g, rowNo, rowColor, points):
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g.add(Polygon(points,
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fillColor=getattr(self,'fillColor',rowColor),
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strokeColor=getattr(self,'strokeColor',rowColor),
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strokeWidth=getattr(self,'strokeWidth',0.1)))
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class ShadedPolyFiller(Filler,ShadedPolygon):
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pass
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class PolyFiller(Filler,Polygon):
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pass
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from linecharts import AbstractLineChart
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class LinePlot(AbstractLineChart):
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"""Line plot with multiple lines.
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Both x- and y-axis are value axis (so there are no seperate
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X and Y versions of this class).
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"""
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_attrMap = AttrMap(BASE=PlotArea,
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reversePlotOrder = AttrMapValue(isBoolean, desc='If true reverse plot order.'),
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lineLabelNudge = AttrMapValue(isNumber, desc='Distance between a data point and its label.'),
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lineLabels = AttrMapValue(None, desc='Handle to the list of data point labels.'),
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lineLabelFormat = AttrMapValue(None, desc='Formatting string or function used for data point labels.'),
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lineLabelArray = AttrMapValue(None, desc='explicit array of line label values, must match size of data if present.'),
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joinedLines = AttrMapValue(isNumber, desc='Display data points joined with lines if true.'),
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strokeColor = AttrMapValue(isColorOrNone, desc='Color used for background border of plot area.'),
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fillColor = AttrMapValue(isColorOrNone, desc='Color used for background interior of plot area.'),
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lines = AttrMapValue(None, desc='Handle of the lines.'),
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xValueAxis = AttrMapValue(None, desc='Handle of the x axis.'),
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yValueAxis = AttrMapValue(None, desc='Handle of the y axis.'),
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data = AttrMapValue(None, desc='Data to be plotted, list of (lists of) x/y tuples.'),
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annotations = AttrMapValue(None, desc='list of callables, will be called with self, xscale, yscale.'),
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)
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def __init__(self):
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PlotArea.__init__(self)
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self.reversePlotOrder = 0
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self.xValueAxis = XValueAxis()
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self.yValueAxis = YValueAxis()
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# this defines two series of 3 points. Just an example.
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self.data = [
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((1,1), (2,2), (2.5,1), (3,3), (4,5)),
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((1,2), (2,3), (2.5,2), (3,4), (4,6))
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]
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self.lines = TypedPropertyCollection(LinePlotProperties)
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self.lines.strokeWidth = 1
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self.lines[0].strokeColor = colors.red
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self.lines[1].strokeColor = colors.blue
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self.lineLabels = TypedPropertyCollection(Label)
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self.lineLabelFormat = None
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self.lineLabelArray = None
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# this says whether the origin is inside or outside
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# the bar - +10 means put the origin ten points
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# above the tip of the bar if value > 0, or ten
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# points inside if bar value < 0. This is different
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# to label dx/dy which are not dependent on the
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# sign of the data.
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self.lineLabelNudge = 10
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# if you have multiple series, by default they butt
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# together.
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# New line chart attributes.
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self.joinedLines = 1 # Connect items with straight lines.
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#private attributes
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self._inFill = None
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def demo(self):
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"""Shows basic use of a line chart."""
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drawing = Drawing(400, 200)
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data = [
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((1,1), (2,2), (2.5,1), (3,3), (4,5)),
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((1,2), (2,3), (2.5,2), (3.5,5), (4,6))
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]
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lp = LinePlot()
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lp.x = 50
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lp.y = 50
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lp.height = 125
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lp.width = 300
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lp.data = data
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lp.joinedLines = 1
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lp.lineLabelFormat = '%2.0f'
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lp.strokeColor = colors.black
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lp.lines[0].strokeColor = colors.red
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lp.lines[0].symbol = makeMarker('FilledCircle')
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lp.lines[1].strokeColor = colors.blue
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lp.lines[1].symbol = makeMarker('FilledDiamond')
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lp.xValueAxis.valueMin = 0
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lp.xValueAxis.valueMax = 5
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lp.xValueAxis.valueStep = 1
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lp.yValueAxis.valueMin = 0
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lp.yValueAxis.valueMax = 7
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lp.yValueAxis.valueStep = 1
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drawing.add(lp)
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return drawing
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def calcPositions(self):
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"""Works out where they go.
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Sets an attribute _positions which is a list of
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lists of (x, y) matching the data.
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"""
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self._seriesCount = len(self.data)
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self._rowLength = max(map(len,self.data))
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self._positions = []
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for rowNo in range(len(self.data)):
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line = []
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for colNo in range(len(self.data[rowNo])):
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datum = self.data[rowNo][colNo] # x,y value
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if type(datum[0]) == type(''):
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x = self.xValueAxis.scale(mktime(mkTimeTuple(datum[0])))
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else:
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x = self.xValueAxis.scale(datum[0])
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y = self.yValueAxis.scale(datum[1])
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line.append((x, y))
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self._positions.append(line)
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def _innerDrawLabel(self, rowNo, colNo, x, y):
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"Draw a label for a given item in the list."
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labelFmt = self.lineLabelFormat
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labelValue = self.data[rowNo][colNo][1] ###
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if labelFmt is None:
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labelText = None
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elif type(labelFmt) is StringType:
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if labelFmt == 'values':
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labelText = self.lineLabelArray[rowNo][colNo]
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else:
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labelText = labelFmt % labelValue
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elif type(labelFmt) is FunctionType:
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labelText = labelFmt(labelValue)
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elif isinstance(labelFmt, Formatter):
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labelText = labelFmt(labelValue)
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else:
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msg = "Unknown formatter type %s, expected string or function"
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raise Exception, msg % labelFmt
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if labelText:
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label = self.lineLabels[(rowNo, colNo)]
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#hack to make sure labels are outside the bar
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if y > 0:
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label.setOrigin(x, y + self.lineLabelNudge)
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else:
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label.setOrigin(x, y - self.lineLabelNudge)
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label.setText(labelText)
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else:
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label = None
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return label
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def drawLabel(self, G, rowNo, colNo, x, y):
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'''Draw a label for a given item in the list.
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G must have an add method'''
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G.add(self._innerDrawLabel(rowNo,colNo,x,y))
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def makeLines(self):
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g = Group()
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bubblePlot = getattr(self,'_bubblePlot',None)
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if bubblePlot:
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yA = self.yValueAxis
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xA = self.xValueAxis
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bubbleR = min(yA._bubbleRadius,xA._bubbleRadius)
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bubbleMax = xA._bubbleMax
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labelFmt = self.lineLabelFormat
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P = range(len(self._positions))
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if self.reversePlotOrder: P.reverse()
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inFill = getattr(self,'_inFill',None)
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if inFill:
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inFillY = self.xValueAxis._y
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inFillX0 = self.yValueAxis._x
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inFillX1 = inFillX0 + self.xValueAxis._length
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inFillG = getattr(self,'_inFillG',g)
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# Iterate over data rows.
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styleCount = len(self.lines)
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for rowNo in P:
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row = self._positions[rowNo]
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rowStyle = self.lines[rowNo % styleCount]
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rowColor = rowStyle.strokeColor
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dash = getattr(rowStyle, 'strokeDashArray', None)
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if hasattr(rowStyle, 'strokeWidth'):
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width = rowStyle.strokeWidth
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elif hasattr(self.lines, 'strokeWidth'):
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width = self.lines.strokeWidth
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else:
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width = None
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# Iterate over data columns.
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if self.joinedLines:
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points = []
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for xy in row:
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points = points + [xy[0], xy[1]]
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if inFill:
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fpoints = [inFillX0,inFillY] + points + [inFillX1,inFillY]
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filler = getattr(rowStyle, 'filler', None)
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if filler:
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filler.fill(self,inFillG,rowNo,rowColor,fpoints)
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else:
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inFillG.add(Polygon(fpoints,fillColor=rowColor,strokeColor=rowColor,strokeWidth=width or 0.1))
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if inFill in (None,0,2):
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line = PolyLine(points,strokeColor=rowColor,strokeLineCap=0,strokeLineJoin=1)
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if width:
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line.strokeWidth = width
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if dash:
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line.strokeDashArray = dash
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g.add(line)
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if hasattr(rowStyle, 'symbol'):
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uSymbol = rowStyle.symbol
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elif hasattr(self.lines, 'symbol'):
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uSymbol = self.lines.symbol
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else:
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uSymbol = None
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if uSymbol:
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j = -1
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if bubblePlot: drow = self.data[rowNo]
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for xy in row:
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j += 1
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symbol = uSymbol2Symbol(uSymbol,xy[0],xy[1],rowColor)
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if symbol:
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if bubblePlot:
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symbol.size = bubbleR*(drow[j][2]/bubbleMax)**0.5
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g.add(symbol)
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# Draw data labels.
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for colNo in range(len(row)):
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x1, y1 = row[colNo]
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self.drawLabel(g, rowNo, colNo, x1, y1)
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shader = getattr(rowStyle, 'shader', None)
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if shader: shader.shade(self,g,rowNo,rowColor,row)
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return g
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def draw(self):
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yA = self.yValueAxis
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xA = self.xValueAxis
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if getattr(self,'_bubblePlot',None):
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yA._bubblePlot = xA._bubblePlot = 1
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yA.setPosition(self.x, self.y, self.height)
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if yA: yA.joinAxis = xA
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if xA: xA.joinAxis = yA
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yA.configure(self.data)
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# if zero is in chart, put x axis there, otherwise use bottom.
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xAxisCrossesAt = yA.scale(0)
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if ((xAxisCrossesAt > self.y + self.height) or (xAxisCrossesAt < self.y)):
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y = self.y
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else:
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y = xAxisCrossesAt
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xA.setPosition(self.x, y, self.width)
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xA.configure(self.data)
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self.calcPositions()
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g = Group()
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g.add(self.makeBackground())
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if self._inFill:
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xA._joinToAxis()
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self._inFillG = Group()
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g.add(self._inFillG)
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g.add(xA)
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g.add(yA)
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yA.gridStart = xA._x
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yA.gridEnd = xA._x+xA._length
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xA.gridStart = yA._y
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xA.gridEnd = yA._y+yA._length
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xA.makeGrid(g,parent=self)
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yA.makeGrid(g,parent=self)
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g.add(self.makeLines())
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for a in getattr(self,'annotations',()): g.add(a(self,xA.scale,yA.scale))
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return g
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class LinePlot3D(LinePlot):
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_attrMap = AttrMap(BASE=LinePlot,
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theta_x = AttrMapValue(isNumber, desc='dx/dz'),
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theta_y = AttrMapValue(isNumber, desc='dy/dz'),
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zDepth = AttrMapValue(isNumber, desc='depth of an individual series'),
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zSpace = AttrMapValue(isNumber, desc='z gap around series'),
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)
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theta_x = .5
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theta_y = .5
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zDepth = 10
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zSpace = 3
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def calcPositions(self):
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LinePlot.calcPositions(self)
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nSeries = self._seriesCount
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zSpace = self.zSpace
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zDepth = self.zDepth
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if self.xValueAxis.style=='parallel_3d':
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_3d_depth = nSeries*zDepth+(nSeries+1)*zSpace
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else:
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_3d_depth = zDepth + 2*zSpace
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self._3d_dx = self.theta_x*_3d_depth
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self._3d_dy = self.theta_y*_3d_depth
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def _calc_z0(self,rowNo):
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zSpace = self.zSpace
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if self.xValueAxis.style=='parallel_3d':
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z0 = rowNo*(self.zDepth+zSpace)+zSpace
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else:
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z0 = zSpace
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return z0
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def _zadjust(self,x,y,z):
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return x+z*self.theta_x, y+z*self.theta_y
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def makeLines(self):
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bubblePlot = getattr(self,'_bubblePlot',None)
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assert not bubblePlot, "_bubblePlot not supported for 3d yet"
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#if bubblePlot:
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# yA = self.yValueAxis
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# xA = self.xValueAxis
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# bubbleR = min(yA._bubbleRadius,xA._bubbleRadius)
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# bubbleMax = xA._bubbleMax
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labelFmt = self.lineLabelFormat
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positions = self._positions
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P = range(len(positions))
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if self.reversePlotOrder: P.reverse()
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inFill = getattr(self,'_inFill',None)
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||
|
assert not inFill, "inFill not supported for 3d yet"
|
||
|
#if inFill:
|
||
|
# inFillY = self.xValueAxis._y
|
||
|
# inFillX0 = self.yValueAxis._x
|
||
|
# inFillX1 = inFillX0 + self.xValueAxis._length
|
||
|
# inFillG = getattr(self,'_inFillG',g)
|
||
|
zDepth = self.zDepth
|
||
|
_zadjust = self._zadjust
|
||
|
theta_x = self.theta_x
|
||
|
theta_y = self.theta_y
|
||
|
from linecharts import _FakeGroup
|
||
|
F = _FakeGroup()
|
||
|
|
||
|
from utils3d import _make_3d_line_info, find_intersections
|
||
|
if self.xValueAxis.style!='parallel_3d':
|
||
|
tileWidth = getattr(self,'_3d_tilewidth',1)
|
||
|
if getattr(self,'_find_intersections',None):
|
||
|
from copy import copy
|
||
|
fpositions = map(copy,positions)
|
||
|
I = find_intersections(fpositions,small=tileWidth)
|
||
|
ic = None
|
||
|
for i,j,x,y in I:
|
||
|
if ic!=i:
|
||
|
ic = i
|
||
|
jc = 0
|
||
|
else:
|
||
|
jc+=1
|
||
|
fpositions[i].insert(j+jc,(x,y))
|
||
|
tileWidth = None
|
||
|
else:
|
||
|
fpositions = positions
|
||
|
else:
|
||
|
tileWidth = None
|
||
|
fpositions = positions
|
||
|
|
||
|
# Iterate over data rows.
|
||
|
styleCount = len(self.lines)
|
||
|
for rowNo in P:
|
||
|
row = positions[rowNo]
|
||
|
n = len(row)
|
||
|
rowStyle = self.lines[rowNo % styleCount]
|
||
|
rowColor = rowStyle.strokeColor
|
||
|
dash = getattr(rowStyle, 'strokeDashArray', None)
|
||
|
z0 = self._calc_z0(rowNo)
|
||
|
z1 = z0 + zDepth
|
||
|
|
||
|
if hasattr(rowStyle, 'strokeWidth'):
|
||
|
width = rowStyle.strokeWidth
|
||
|
elif hasattr(self.lines, 'strokeWidth'):
|
||
|
width = self.lines.strokeWidth
|
||
|
else:
|
||
|
width = None
|
||
|
|
||
|
# Iterate over data columns.
|
||
|
if self.joinedLines:
|
||
|
if n:
|
||
|
frow = fpositions[rowNo]
|
||
|
x0, y0 = frow[0]
|
||
|
for colNo in xrange(1,len(frow)):
|
||
|
x1, y1 = frow[colNo]
|
||
|
_make_3d_line_info( F, x0, x1, y0, y1, z0, z1,
|
||
|
theta_x, theta_y,
|
||
|
rowColor, fillColorShaded=None, tileWidth=tileWidth,
|
||
|
strokeColor=None, strokeWidth=None, strokeDashArray=None,
|
||
|
shading=0.1)
|
||
|
x0, y0 = x1, y1
|
||
|
|
||
|
if hasattr(rowStyle, 'symbol'):
|
||
|
uSymbol = rowStyle.symbol
|
||
|
elif hasattr(self.lines, 'symbol'):
|
||
|
uSymbol = self.lines.symbol
|
||
|
else:
|
||
|
uSymbol = None
|
||
|
|
||
|
if uSymbol:
|
||
|
for xy in row:
|
||
|
x1, y1 = row[colNo]
|
||
|
x1, y1 = _zadjust(x1,y1,z0)
|
||
|
symbol = uSymbol2Symbol(uSymbol,xy[0],xy[1],rowColor)
|
||
|
if symbol: F.add((1,z0,z0,x1,y1,symbol))
|
||
|
|
||
|
# Draw data labels.
|
||
|
for colNo in xrange(n):
|
||
|
x1, y1 = row[colNo]
|
||
|
x1, y1 = _zadjust(x1,y1,z0)
|
||
|
L = self._innerDrawLabel(rowNo, colNo, x1, y1)
|
||
|
if L: F.add((2,z0,z0,x1,y1,L))
|
||
|
|
||
|
F.sort()
|
||
|
g = Group()
|
||
|
map(lambda x,a=g.add: a(x[-1]),F.value())
|
||
|
return g
|
||
|
|
||
|
_monthlyIndexData = [[(19971202, 100.0),
|
||
|
(19971231, 100.1704367),
|
||
|
(19980131, 101.5639577),
|
||
|
(19980228, 102.1879927),
|
||
|
(19980331, 101.6337257),
|
||
|
(19980430, 102.7640446),
|
||
|
(19980531, 102.9198038),
|
||
|
(19980630, 103.25938789999999),
|
||
|
(19980731, 103.2516421),
|
||
|
(19980831, 105.4744329),
|
||
|
(19980930, 109.3242705),
|
||
|
(19981031, 111.9859291),
|
||
|
(19981130, 110.9184642),
|
||
|
(19981231, 110.9184642),
|
||
|
(19990131, 111.9882532),
|
||
|
(19990228, 109.7912614),
|
||
|
(19990331, 110.24189629999999),
|
||
|
(19990430, 110.4279321),
|
||
|
(19990531, 109.33955469999999),
|
||
|
(19990630, 108.2341748),
|
||
|
(19990731, 110.21294469999999),
|
||
|
(19990831, 110.9683062),
|
||
|
(19990930, 112.4425371),
|
||
|
(19991031, 112.7314032),
|
||
|
(19991130, 112.3509645),
|
||
|
(19991231, 112.3660659),
|
||
|
(20000131, 110.9255248),
|
||
|
(20000229, 110.5266306),
|
||
|
(20000331, 113.3116101),
|
||
|
(20000430, 111.0449133),
|
||
|
(20000531, 111.702717),
|
||
|
(20000630, 113.5832178)],
|
||
|
[(19971202, 100.0),
|
||
|
(19971231, 100.0),
|
||
|
(19980131, 100.8),
|
||
|
(19980228, 102.0),
|
||
|
(19980331, 101.9),
|
||
|
(19980430, 103.0),
|
||
|
(19980531, 103.0),
|
||
|
(19980630, 103.1),
|
||
|
(19980731, 103.1),
|
||
|
(19980831, 102.8),
|
||
|
(19980930, 105.6),
|
||
|
(19981031, 108.3),
|
||
|
(19981130, 108.1),
|
||
|
(19981231, 111.9),
|
||
|
(19990131, 113.1),
|
||
|
(19990228, 110.2),
|
||
|
(19990331, 111.8),
|
||
|
(19990430, 112.3),
|
||
|
(19990531, 110.1),
|
||
|
(19990630, 109.3),
|
||
|
(19990731, 111.2),
|
||
|
(19990831, 111.7),
|
||
|
(19990930, 112.6),
|
||
|
(19991031, 113.2),
|
||
|
(19991130, 113.9),
|
||
|
(19991231, 115.4),
|
||
|
(20000131, 112.7),
|
||
|
(20000229, 113.9),
|
||
|
(20000331, 115.8),
|
||
|
(20000430, 112.2),
|
||
|
(20000531, 112.6),
|
||
|
(20000630, 114.6)]]
|
||
|
|
||
|
class GridLinePlot(LinePlot):
|
||
|
"""A customized version of LinePlot.
|
||
|
It uses NormalDateXValueAxis() and AdjYValueAxis() for the X and Y axes.
|
||
|
The chart has a default grid background with thin horizontal lines
|
||
|
aligned with the tickmarks (and labels). You can change the back-
|
||
|
ground to be any Grid or ShadedRect, or scale the whole chart.
|
||
|
If you do provide a background, you can specify the colours of the
|
||
|
stripes with 'background.stripeColors'.
|
||
|
"""
|
||
|
|
||
|
_attrMap = AttrMap(BASE=LinePlot,
|
||
|
background = AttrMapValue(None, desc='Background for chart area (now Grid or ShadedRect).'),
|
||
|
scaleFactor = AttrMapValue(isNumberOrNone, desc='Scalefactor to apply to whole drawing.'),
|
||
|
)
|
||
|
|
||
|
def __init__(self):
|
||
|
from reportlab.lib import colors
|
||
|
LinePlot.__init__(self)
|
||
|
self.xValueAxis = NormalDateXValueAxis()
|
||
|
self.yValueAxis = AdjYValueAxis()
|
||
|
self.scaleFactor = None
|
||
|
self.background = Grid()
|
||
|
self.background.orientation = 'horizontal'
|
||
|
self.background.useRects = 0
|
||
|
self.background.useLines = 1
|
||
|
self.background.strokeWidth = 0.5
|
||
|
self.background.strokeColor = colors.black
|
||
|
self.data = _monthlyIndexData
|
||
|
|
||
|
def demo(self,drawing=None):
|
||
|
from reportlab.lib import colors
|
||
|
if not drawing:
|
||
|
drawing = Drawing(400, 200)
|
||
|
lp = AdjLinePlot()
|
||
|
lp.x = 50
|
||
|
lp.y = 50
|
||
|
lp.height = 125
|
||
|
lp.width = 300
|
||
|
lp.data = _monthlyIndexData
|
||
|
lp.joinedLines = 1
|
||
|
lp.strokeColor = colors.black
|
||
|
c0 = colors.PCMYKColor(100,65,0,30, spotName='PANTONE 288 CV', density=100)
|
||
|
lp.lines[0].strokeColor = c0
|
||
|
lp.lines[0].strokeWidth = 2
|
||
|
lp.lines[0].strokeDashArray = None
|
||
|
c1 = colors.PCMYKColor(0,79,91,0, spotName='PANTONE Wm Red CV', density=100)
|
||
|
lp.lines[1].strokeColor = c1
|
||
|
lp.lines[1].strokeWidth = 1
|
||
|
lp.lines[1].strokeDashArray = [3,1]
|
||
|
lp.xValueAxis.labels.fontSize = 10
|
||
|
lp.xValueAxis.labels.textAnchor = 'start'
|
||
|
lp.xValueAxis.labels.boxAnchor = 'w'
|
||
|
lp.xValueAxis.labels.angle = -45
|
||
|
lp.xValueAxis.labels.dx = 0
|
||
|
lp.xValueAxis.labels.dy = -8
|
||
|
lp.xValueAxis.xLabelFormat = '{mm}/{yy}'
|
||
|
lp.yValueAxis.labelTextFormat = '%5d%% '
|
||
|
lp.yValueAxis.tickLeft = 5
|
||
|
lp.yValueAxis.labels.fontSize = 10
|
||
|
lp.background = Grid()
|
||
|
lp.background.stripeColors = [colors.pink, colors.lightblue]
|
||
|
lp.background.orientation = 'vertical'
|
||
|
drawing.add(lp,'plot')
|
||
|
return drawing
|
||
|
|
||
|
def draw(self):
|
||
|
xva, yva = self.xValueAxis, self.yValueAxis
|
||
|
if xva: xva.joinAxis = yva
|
||
|
if yva: yva.joinAxis = xva
|
||
|
|
||
|
yva.setPosition(self.x, self.y, self.height)
|
||
|
yva.configure(self.data)
|
||
|
|
||
|
# if zero is in chart, put x axis there, otherwise
|
||
|
# use bottom.
|
||
|
xAxisCrossesAt = yva.scale(0)
|
||
|
if ((xAxisCrossesAt > self.y + self.height) or (xAxisCrossesAt < self.y)):
|
||
|
y = self.y
|
||
|
else:
|
||
|
y = xAxisCrossesAt
|
||
|
|
||
|
xva.setPosition(self.x, y, self.width)
|
||
|
xva.configure(self.data)
|
||
|
|
||
|
back = self.background
|
||
|
if isinstance(back, Grid):
|
||
|
if back.orientation == 'vertical' and xva._tickValues:
|
||
|
xpos = map(xva.scale, [xva._valueMin] + xva._tickValues)
|
||
|
steps = []
|
||
|
for i in range(len(xpos)-1):
|
||
|
steps.append(xpos[i+1] - xpos[i])
|
||
|
back.deltaSteps = steps
|
||
|
elif back.orientation == 'horizontal' and yva._tickValues:
|
||
|
ypos = map(yva.scale, [yva._valueMin] + yva._tickValues)
|
||
|
steps = []
|
||
|
for i in range(len(ypos)-1):
|
||
|
steps.append(ypos[i+1] - ypos[i])
|
||
|
back.deltaSteps = steps
|
||
|
elif isinstance(back, DoubleGrid):
|
||
|
# Ideally, these lines would not be needed...
|
||
|
back.grid0.x = self.x
|
||
|
back.grid0.y = self.y
|
||
|
back.grid0.width = self.width
|
||
|
back.grid0.height = self.height
|
||
|
back.grid1.x = self.x
|
||
|
back.grid1.y = self.y
|
||
|
back.grid1.width = self.width
|
||
|
back.grid1.height = self.height
|
||
|
|
||
|
# some room left for optimization...
|
||
|
if back.grid0.orientation == 'vertical' and xva._tickValues:
|
||
|
xpos = map(xva.scale, [xva._valueMin] + xva._tickValues)
|
||
|
steps = []
|
||
|
for i in range(len(xpos)-1):
|
||
|
steps.append(xpos[i+1] - xpos[i])
|
||
|
back.grid0.deltaSteps = steps
|
||
|
elif back.grid0.orientation == 'horizontal' and yva._tickValues:
|
||
|
ypos = map(yva.scale, [yva._valueMin] + yva._tickValues)
|
||
|
steps = []
|
||
|
for i in range(len(ypos)-1):
|
||
|
steps.append(ypos[i+1] - ypos[i])
|
||
|
back.grid0.deltaSteps = steps
|
||
|
if back.grid1.orientation == 'vertical' and xva._tickValues:
|
||
|
xpos = map(xva.scale, [xva._valueMin] + xva._tickValues)
|
||
|
steps = []
|
||
|
for i in range(len(xpos)-1):
|
||
|
steps.append(xpos[i+1] - xpos[i])
|
||
|
back.grid1.deltaSteps = steps
|
||
|
elif back.grid1.orientation == 'horizontal' and yva._tickValues:
|
||
|
ypos = map(yva.scale, [yva._valueMin] + yva._tickValues)
|
||
|
steps = []
|
||
|
for i in range(len(ypos)-1):
|
||
|
steps.append(ypos[i+1] - ypos[i])
|
||
|
back.grid1.deltaSteps = steps
|
||
|
|
||
|
self.calcPositions()
|
||
|
|
||
|
width, height, scaleFactor = self.width, self.height, self.scaleFactor
|
||
|
if scaleFactor and scaleFactor!=1:
|
||
|
#g = Drawing(scaleFactor*width, scaleFactor*height)
|
||
|
g.transform = (scaleFactor, 0, 0, scaleFactor,0,0)
|
||
|
else:
|
||
|
g = Group()
|
||
|
|
||
|
g.add(self.makeBackground())
|
||
|
g.add(self.xValueAxis)
|
||
|
g.add(self.yValueAxis)
|
||
|
g.add(self.makeLines())
|
||
|
|
||
|
return g
|
||
|
|
||
|
class AreaLinePlot(LinePlot):
|
||
|
'''we're given data in the form [(X1,Y11,..Y1M)....(Xn,Yn1,...YnM)]'''#'
|
||
|
def __init__(self):
|
||
|
LinePlot.__init__(self)
|
||
|
self._inFill = 1
|
||
|
self.reversePlotOrder = 1
|
||
|
self.data = [(1,20,100,30),(2,11,50,15),(3,15,70,40)]
|
||
|
|
||
|
def draw(self):
|
||
|
try:
|
||
|
odata = self.data
|
||
|
n = len(odata)
|
||
|
m = len(odata[0])
|
||
|
S = n*[0]
|
||
|
self.data = []
|
||
|
for i in xrange(1,m):
|
||
|
D = []
|
||
|
for j in xrange(n):
|
||
|
S[j] = S[j] + odata[j][i]
|
||
|
D.append((odata[j][0],S[j]))
|
||
|
self.data.append(D)
|
||
|
return LinePlot.draw(self)
|
||
|
finally:
|
||
|
self.data = odata
|
||
|
|
||
|
class SplitLinePlot(AreaLinePlot):
|
||
|
def __init__(self):
|
||
|
AreaLinePlot.__init__(self)
|
||
|
self.xValueAxis = NormalDateXValueAxis()
|
||
|
self.yValueAxis = AdjYValueAxis()
|
||
|
self.data=[(20030601,0.95,0.05,0.0),(20030701,0.95,0.05,0.0),(20030801,0.95,0.05,0.0),(20030901,0.95,0.05,0.0),(20031001,0.95,0.05,0.0),(20031101,0.95,0.05,0.0),(20031201,0.95,0.05,0.0),(20040101,0.95,0.05,0.0),(20040201,0.95,0.05,0.0),(20040301,0.95,0.05,0.0),(20040401,0.95,0.05,0.0),(20040501,0.95,0.05,0.0),(20040601,0.95,0.05,0.0),(20040701,0.95,0.05,0.0),(20040801,0.95,0.05,0.0),(20040901,0.95,0.05,0.0),(20041001,0.95,0.05,0.0),(20041101,0.95,0.05,0.0),(20041201,0.95,0.05,0.0),(20050101,0.95,0.05,0.0),(20050201,0.95,0.05,0.0),(20050301,0.95,0.05,0.0),(20050401,0.95,0.05,0.0),(20050501,0.95,0.05,0.0),(20050601,0.95,0.05,0.0),(20050701,0.95,0.05,0.0),(20050801,0.95,0.05,0.0),(20050901,0.95,0.05,0.0),(20051001,0.95,0.05,0.0),(20051101,0.95,0.05,0.0),(20051201,0.95,0.05,0.0),(20060101,0.95,0.05,0.0),(20060201,0.95,0.05,0.0),(20060301,0.95,0.05,0.0),(20060401,0.95,0.05,0.0),(20060501,0.95,0.05,0.0),(20060601,0.95,0.05,0.0),(20060701,0.95,0.05,0.0),(20060801,0.95,0.05,0.0),(20060901,0.95,0.05,0.0),(20061001,0.95,0.05,0.0),(20061101,0.95,0.05,0.0),(20061201,0.95,0.05,0.0),(20070101,0.95,0.05,0.0),(20070201,0.95,0.05,0.0),(20070301,0.95,0.05,0.0),(20070401,0.95,0.05,0.0),(20070501,0.95,0.05,0.0),(20070601,0.95,0.05,0.0),(20070701,0.95,0.05,0.0),(20070801,0.95,0.05,0.0),(20070901,0.95,0.05,0.0),(20071001,0.95,0.05,0.0),(20071101,0.95,0.05,0.0),(20071201,0.95,0.05,0.0),(20080101,0.95,0.05,0.0),(20080201,0.95,0.05,0.0),(20080301,0.95,0.05,0.0),(20080401,0.95,0.05,0.0),(20080501,0.95,0.05,0.0),(20080601,0.95,0.05,0.0),(20080701,0.95,0.05,0.0),(20080801,0.95,0.05,0.0),(20080901,0.95,0.05,0.0),(20081001,0.95,0.05,0.0),(20081101,0.95,0.05,0.0),(20081201,0.95,0.05,0.0),(20090101,0.95,0.05,0.0),(20090201,0.91,0.09,0.0),(20090301,0.91,0.09,0.0),(20090401,0.91,0.09,0.0),(20090501,0.91,0.09,0.0),(20090601,0.91,0.09,0.0),(20090701,0.91,0.09,0.0),(20090801,0.91,0.09,0.0),(20090901,0.91,0.09,0.0),(20091001,0.91,0.09,0.0),(20091101,0.91,0.09,0.0),(20091201,0.91,0.09,0.0),(20100101,0.91,0.09,0.0),(20100201,0.81,0.19,0.0),(20100301,0.81,0.19,0.0),(20100401,0.81,0.19,0.0),(20100501,0.81,0.19,0.0),(20100601,0.81,0.19,0.0),(20100701,0.81,0.19,0.0),(20100801,0.81,0.19,0.0),(20100901,0.81,0.19,0.0),(20101001,0.81,0.19,0.0),(20101101,0.81,0.19,0.0),(20101201,0.81,0.19,0.0),(20110101,0.81,0.19,0.0),(20110201,0.72,0.28,0.0),(20110301,0.72,0.28,0.0),(20110401,0.72,0.28,0.0),(20110501,0.72,0.28,0.0),(20110601,0.72,0.28,0.0),(20110701,0.72,0.28,0.0),(20110801,0.72,0.28,0.0),(20110901,0.72,0.28,0.0),(20111001,0.72,0.28,0.0),(20111101,0.72,0.28,0.0),(20111201,0.72,0.28,0.0),(20120101,0.72,0.28,0.0),(20120201,0.53,0.47,0.0),(20120301,0.53,0.47,0.0),(20120401,0.53,0.47,0.0),(20120501,0.53,0.47,0.0),(20120601,0.53,0.47,0.0),(20120701,0.53,0.47,0.0),(20120801,0.53,0.47,0.0),(20120901,0.53,0.47,0.0),(20121001,0.53,0.47,0.0),(20121101,0.53,0.47,0.0),(20121201,0.53,0.47,0.0),(20130101,0.53,0.47,0.0),(20130201,0.44,0.56,0.0),(20130301,0.44,0.56,0.0),(20130401,0.44,0.56,0.0),(20130501,0.44,0.56,0.0),(20130601,0.44,0.56,0.0),(20130701,0.44,0.56,0.0),(20130801,0.44,0.56,0.0),(20130901,0.44,0.56,0.0),(20131001,0.44,0.56,0.0),(20131101,0.44,0.56,0.0),(20131201,0.44,0.56,0.0),(20140101,0.44,0.56,0.0),(20140201,0.36,0.5,0.14),(20140301,0.36,0.5,0.14),(20140401,0.36,0.5,0.14),(20140501,0.36,0.5,0.14),(20140601,0.36,0.5,0.14),(20140701,0.36,0.5,0.14),(20140801,0.36,0.5,0.14),(20140901,0.36,0.5,0.14),(20141001,0.36,0.5,0.14),(20141101,0.36,0.5,0.14),(20141201,0.36,0.5,0.14),(20150101,0.36,0.5,0.14),(20150201,0.3,0.41,0.29),(20150301,0.3,0.41,0.29),(20150401,0.3,0.41,0.29),(20150501,0.3,0.41,0.29),(20150601,0.3,0.41,0.29),(20150701,0.3,0.41,0.29),(20150801,0.3,0.41,0.29),(20150901,0.3,0.41,0.29),(20151001,0.3,0.41,0.29),(20151101,0.3,0.41,0.29),(20151201,0.3,0.41,0.29),(20160101,0.3,0.41,0.29),(20160201,0.26,0.36,0.38),(20160301,0.26,0.36,0.38),(20160401,0.26,0.36,0.38),(20160501,0.26,0.36,0.38),(20160601,0.26,0.36,0.38),(20160701,0.26,0.36,0.38),(20160801,0.26,0.36,0.38),(20160901,0.26,0.36,0.38),(20161001,0.26,0.36,0.38),(20161101,0.26,0.36,0.38),(20161201,0.26,0
|
||
|
self.yValueAxis.requiredRange = None
|
||
|
self.yValueAxis.leftAxisPercent = 0
|
||
|
self.yValueAxis.leftAxisOrigShiftMin = 0
|
||
|
self.yValueAxis.leftAxisOrigShiftIPC = 0
|
||
|
self.lines[0].strokeColor = colors.toColor(0x0033cc)
|
||
|
self.lines[1].strokeColor = colors.toColor(0x99c3ff)
|
||
|
self.lines[2].strokeColor = colors.toColor(0xCC0033)
|
||
|
|
||
|
def _maxWidth(T, fontName, fontSize):
|
||
|
'''return max stringWidth for the list of strings T'''
|
||
|
if type(T) not in (type(()),type([])): T = (T,)
|
||
|
T = filter(None,T)
|
||
|
return T and max(map(lambda t,sW=stringWidth,fN=fontName, fS=fontSize: sW(t,fN,fS),T)) or 0
|
||
|
|
||
|
class ScatterPlot(LinePlot):
|
||
|
"""A scatter plot widget"""
|
||
|
|
||
|
_attrMap = AttrMap(BASE=LinePlot,
|
||
|
width = AttrMapValue(isNumber, desc="Width of the area inside the axes"),
|
||
|
height = AttrMapValue(isNumber, desc="Height of the area inside the axes"),
|
||
|
outerBorderOn = AttrMapValue(isBoolean, desc="Is there an outer border (continuation of axes)"),
|
||
|
outerBorderColor = AttrMapValue(isColorOrNone, desc="Color of outer border (if any)"),
|
||
|
background = AttrMapValue(isColorOrNone, desc="Background color (if any)"),
|
||
|
labelOffset = AttrMapValue(isNumber, desc="Space between label and Axis (or other labels)"),
|
||
|
axisTickLengths = AttrMapValue(isNumber, desc="Lenth of the ticks on both axes"),
|
||
|
axisStrokeWidth = AttrMapValue(isNumber, desc="Stroke width for both axes"),
|
||
|
xLabel = AttrMapValue(isString, desc="Label for the whole X-Axis"),
|
||
|
yLabel = AttrMapValue(isString, desc="Label for the whole Y-Axis"),
|
||
|
data = AttrMapValue(isAnything, desc='Data points - a list of x/y tuples.'),
|
||
|
strokeColor = AttrMapValue(isColorOrNone, desc='Color used for border of plot area.'),
|
||
|
fillColor = AttrMapValue(isColorOrNone, desc='Color used for background interior of plot area.'),
|
||
|
leftPadding = AttrMapValue(isNumber, desc='Padding on left of drawing'),
|
||
|
rightPadding = AttrMapValue(isNumber, desc='Padding on right of drawing'),
|
||
|
topPadding = AttrMapValue(isNumber, desc='Padding at top of drawing'),
|
||
|
bottomPadding = AttrMapValue(isNumber, desc='Padding at bottom of drawing'),
|
||
|
)
|
||
|
|
||
|
def __init__(self):
|
||
|
LinePlot.__init__(self)
|
||
|
self.width = 142
|
||
|
self.height = 77
|
||
|
self.outerBorderOn = 1
|
||
|
self.outerBorderColor = colors.black
|
||
|
self.background = None
|
||
|
|
||
|
_labelOffset = 3
|
||
|
_axisTickLengths = 2
|
||
|
_axisStrokeWidth = 0.5
|
||
|
|
||
|
self.yValueAxis.valueMin = None
|
||
|
self.yValueAxis.valueMax = None
|
||
|
self.yValueAxis.valueStep = None
|
||
|
self.yValueAxis.labelTextFormat = '%s'
|
||
|
|
||
|
self.xLabel="X Lable"
|
||
|
self.xValueAxis.labels.fontSize = 6
|
||
|
|
||
|
self.yLabel="Y Lable"
|
||
|
self.yValueAxis.labels.fontSize = 6
|
||
|
|
||
|
self.data =[((0.030, 62.73),
|
||
|
(0.074, 54.363),
|
||
|
(1.216, 17.964)),
|
||
|
|
||
|
((1.360, 11.621),
|
||
|
(1.387, 50.011),
|
||
|
(1.428, 68.953)),
|
||
|
|
||
|
((1.444, 86.888),
|
||
|
(1.754, 35.58),
|
||
|
(1.766, 36.05))]
|
||
|
|
||
|
#values for lineplot
|
||
|
self.joinedLines = 0
|
||
|
self.fillColor = self.background
|
||
|
|
||
|
self.leftPadding=5
|
||
|
self.rightPadding=10
|
||
|
self.topPadding=5
|
||
|
self.bottomPadding=5
|
||
|
|
||
|
self.x = self.leftPadding+_axisTickLengths+(_labelOffset*2)
|
||
|
self.x=self.x+_maxWidth(str(self.yValueAxis.valueMax), self.yValueAxis.labels.fontName, self.yValueAxis.labels.fontSize)
|
||
|
self.y = self.bottomPadding+_axisTickLengths+_labelOffset+self.xValueAxis.labels.fontSize
|
||
|
|
||
|
self.xValueAxis.labels.dy = -_labelOffset
|
||
|
self.xValueAxis.tickDown = _axisTickLengths
|
||
|
self.xValueAxis.strokeWidth = _axisStrokeWidth
|
||
|
self.xValueAxis.rangeRound='both'
|
||
|
self.yValueAxis.labels.dx = -_labelOffset
|
||
|
self.yValueAxis.tickLeft = _axisTickLengths
|
||
|
self.yValueAxis.strokeWidth = _axisStrokeWidth
|
||
|
self.yValueAxis.rangeRound='both'
|
||
|
|
||
|
self.lineLabelFormat="%.2f"
|
||
|
self.lineLabels.fontSize = 5
|
||
|
self.lineLabels.boxAnchor = 'e'
|
||
|
self.lineLabels.dx = -2
|
||
|
self.lineLabelNudge = 0
|
||
|
self.lines.symbol=makeMarker('FilledCircle',size=3)
|
||
|
self.lines[1].symbol=makeMarker('FilledDiamond',size=3)
|
||
|
self.lines[2].symbol=makeMarker('FilledSquare',size=3)
|
||
|
self.lines[2].strokeColor = colors.green
|
||
|
|
||
|
def _getDrawingDimensions(self):
|
||
|
tx = self.leftPadding+self.yValueAxis.tickLeft+(self.yValueAxis.labels.dx*2)+self.xValueAxis.labels.fontSize
|
||
|
tx=tx+(5*_maxWidth(str(self.yValueAxis.valueMax), self.yValueAxis.labels.fontName, self.yValueAxis.labels.fontSize))
|
||
|
tx=tx+self.width+self.rightPadding
|
||
|
t=('%.2f%%'%self.xValueAxis.valueMax)
|
||
|
tx=tx+(_maxWidth(t, self.yValueAxis.labels.fontName, self.yValueAxis.labels.fontSize))
|
||
|
ty = self.bottomPadding+self.xValueAxis.tickDown+(self.xValueAxis.labels.dy*2)+(self.xValueAxis.labels.fontSize*2)
|
||
|
ty=ty+self.yValueAxis.labels.fontSize+self.height+self.topPadding
|
||
|
#print (tx, ty)
|
||
|
return (tx,ty)
|
||
|
|
||
|
def demo(self,drawing=None):
|
||
|
if not drawing:
|
||
|
tx,ty=self._getDrawingDimensions()
|
||
|
drawing = Drawing(tx,ty)
|
||
|
drawing.add(self.draw())
|
||
|
return drawing
|
||
|
|
||
|
def draw(self):
|
||
|
ascent=getFont(self.xValueAxis.labels.fontName).face.ascent
|
||
|
if ascent==0:
|
||
|
ascent=0.718 # default (from helvetica)
|
||
|
ascent=ascent*self.xValueAxis.labels.fontSize # normalize
|
||
|
|
||
|
#basic LinePlot - does the Axes, Ticks etc
|
||
|
lp = LinePlot.draw(self)
|
||
|
|
||
|
xLabel = self.xLabel
|
||
|
if xLabel: #Overall label for the X-axis
|
||
|
xl=Label()
|
||
|
xl.x = (self.x+self.width)/2.0
|
||
|
xl.y = 0
|
||
|
xl.fontName = self.xValueAxis.labels.fontName
|
||
|
xl.fontSize = self.xValueAxis.labels.fontSize
|
||
|
xl.setText(xLabel)
|
||
|
lp.add(xl)
|
||
|
|
||
|
yLabel = self.yLabel
|
||
|
if yLabel: #Overall label for the Y-axis
|
||
|
yl=Label()
|
||
|
yl.angle = 90
|
||
|
yl.x = 0
|
||
|
yl.y = (self.y+self.height/2.0)
|
||
|
yl.fontName = self.yValueAxis.labels.fontName
|
||
|
yl.fontSize = self.yValueAxis.labels.fontSize
|
||
|
yl.setText(yLabel)
|
||
|
lp.add(yl)
|
||
|
|
||
|
# do a bounding box - in the same style as the axes
|
||
|
if self.outerBorderOn:
|
||
|
lp.add(Rect(self.x, self.y, self.width, self.height,
|
||
|
strokeColor = self.outerBorderColor,
|
||
|
strokeWidth = self.yValueAxis.strokeWidth,
|
||
|
fillColor = None))
|
||
|
|
||
|
lp.shift(self.leftPadding, self.bottomPadding)
|
||
|
|
||
|
return lp
|
||
|
|
||
|
def sample1a():
|
||
|
"A line plot with non-equidistant points in x-axis."
|
||
|
|
||
|
drawing = Drawing(400, 200)
|
||
|
|
||
|
data = [
|
||
|
((1,1), (2,2), (2.5,1), (3,3), (4,5)),
|
||
|
((1,2), (2,3), (2.5,2), (3.5,5), (4,6))
|
||
|
]
|
||
|
|
||
|
lp = LinePlot()
|
||
|
|
||
|
lp.x = 50
|
||
|
lp.y = 50
|
||
|
lp.height = 125
|
||
|
lp.width = 300
|
||
|
lp.data = data
|
||
|
lp.joinedLines = 1
|
||
|
lp.strokeColor = colors.black
|
||
|
|
||
|
lp.lines.symbol = makeMarker('UK_Flag')
|
||
|
|
||
|
lp.lines[0].strokeWidth = 2
|
||
|
lp.lines[1].strokeWidth = 4
|
||
|
|
||
|
lp.xValueAxis.valueMin = 0
|
||
|
lp.xValueAxis.valueMax = 5
|
||
|
lp.xValueAxis.valueStep = 1
|
||
|
|
||
|
lp.yValueAxis.valueMin = 0
|
||
|
lp.yValueAxis.valueMax = 7
|
||
|
lp.yValueAxis.valueStep = 1
|
||
|
|
||
|
drawing.add(lp)
|
||
|
|
||
|
return drawing
|
||
|
|
||
|
|
||
|
def sample1b():
|
||
|
"A line plot with non-equidistant points in x-axis."
|
||
|
|
||
|
drawing = Drawing(400, 200)
|
||
|
|
||
|
data = [
|
||
|
((1,1), (2,2), (2.5,1), (3,3), (4,5)),
|
||
|
((1,2), (2,3), (2.5,2), (3.5,5), (4,6))
|
||
|
]
|
||
|
|
||
|
lp = LinePlot()
|
||
|
|
||
|
lp.x = 50
|
||
|
lp.y = 50
|
||
|
lp.height = 125
|
||
|
lp.width = 300
|
||
|
lp.data = data
|
||
|
lp.joinedLines = 1
|
||
|
lp.lines.symbol = makeMarker('Circle')
|
||
|
lp.lineLabelFormat = '%2.0f'
|
||
|
lp.strokeColor = colors.black
|
||
|
|
||
|
lp.xValueAxis.valueMin = 0
|
||
|
lp.xValueAxis.valueMax = 5
|
||
|
lp.xValueAxis.valueSteps = [1, 2, 2.5, 3, 4, 5]
|
||
|
lp.xValueAxis.labelTextFormat = '%2.1f'
|
||
|
|
||
|
lp.yValueAxis.valueMin = 0
|
||
|
lp.yValueAxis.valueMax = 7
|
||
|
lp.yValueAxis.valueStep = 1
|
||
|
|
||
|
drawing.add(lp)
|
||
|
|
||
|
return drawing
|
||
|
|
||
|
|
||
|
def sample1c():
|
||
|
"A line plot with non-equidistant points in x-axis."
|
||
|
|
||
|
drawing = Drawing(400, 200)
|
||
|
|
||
|
data = [
|
||
|
((1,1), (2,2), (2.5,1), (3,3), (4,5)),
|
||
|
((1,2), (2,3), (2.5,2), (3.5,5), (4,6))
|
||
|
]
|
||
|
|
||
|
lp = LinePlot()
|
||
|
|
||
|
lp.x = 50
|
||
|
lp.y = 50
|
||
|
lp.height = 125
|
||
|
lp.width = 300
|
||
|
lp.data = data
|
||
|
lp.joinedLines = 1
|
||
|
lp.lines[0].symbol = makeMarker('FilledCircle')
|
||
|
lp.lines[1].symbol = makeMarker('Circle')
|
||
|
lp.lineLabelFormat = '%2.0f'
|
||
|
lp.strokeColor = colors.black
|
||
|
|
||
|
lp.xValueAxis.valueMin = 0
|
||
|
lp.xValueAxis.valueMax = 5
|
||
|
lp.xValueAxis.valueSteps = [1, 2, 2.5, 3, 4, 5]
|
||
|
lp.xValueAxis.labelTextFormat = '%2.1f'
|
||
|
|
||
|
lp.yValueAxis.valueMin = 0
|
||
|
lp.yValueAxis.valueMax = 7
|
||
|
lp.yValueAxis.valueSteps = [1, 2, 3, 5, 6]
|
||
|
|
||
|
drawing.add(lp)
|
||
|
|
||
|
return drawing
|
||
|
|
||
|
|
||
|
def preprocessData(series):
|
||
|
"Convert date strings into seconds and multiply values by 100."
|
||
|
|
||
|
return map(lambda x: (str2seconds(x[0]), x[1]*100), series)
|
||
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def sample2():
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|
"A line plot with non-equidistant points in x-axis."
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drawing = Drawing(400, 200)
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data = [
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(('25/11/1991',1),
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('30/11/1991',1.000933333),
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|
('31/12/1991',1.0062),
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|
('31/01/1992',1.0112),
|
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|
('29/02/1992',1.0158),
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|
('31/03/1992',1.020733333),
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|
('30/04/1992',1.026133333),
|
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|
('31/05/1992',1.030266667),
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|
('30/06/1992',1.034466667),
|
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|
('31/07/1992',1.038733333),
|
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|
('31/08/1992',1.0422),
|
||
|
('30/09/1992',1.045533333),
|
||
|
('31/10/1992',1.049866667),
|
||
|
('30/11/1992',1.054733333),
|
||
|
('31/12/1992',1.061),
|
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|
),
|
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|
]
|
||
|
|
||
|
data[0] = preprocessData(data[0])
|
||
|
|
||
|
lp = LinePlot()
|
||
|
|
||
|
lp.x = 50
|
||
|
lp.y = 50
|
||
|
lp.height = 125
|
||
|
lp.width = 300
|
||
|
lp.data = data
|
||
|
lp.joinedLines = 1
|
||
|
lp.lines.symbol = makeMarker('FilledDiamond')
|
||
|
lp.strokeColor = colors.black
|
||
|
|
||
|
start = mktime(mkTimeTuple('25/11/1991'))
|
||
|
t0 = mktime(mkTimeTuple('30/11/1991'))
|
||
|
t1 = mktime(mkTimeTuple('31/12/1991'))
|
||
|
t2 = mktime(mkTimeTuple('31/03/1992'))
|
||
|
t3 = mktime(mkTimeTuple('30/06/1992'))
|
||
|
t4 = mktime(mkTimeTuple('30/09/1992'))
|
||
|
end = mktime(mkTimeTuple('31/12/1992'))
|
||
|
lp.xValueAxis.valueMin = start
|
||
|
lp.xValueAxis.valueMax = end
|
||
|
lp.xValueAxis.valueSteps = [start, t0, t1, t2, t3, t4, end]
|
||
|
lp.xValueAxis.labelTextFormat = seconds2str
|
||
|
lp.xValueAxis.labels[1].dy = -20
|
||
|
lp.xValueAxis.labels[2].dy = -35
|
||
|
|
||
|
lp.yValueAxis.labelTextFormat = '%4.2f'
|
||
|
lp.yValueAxis.valueMin = 100
|
||
|
lp.yValueAxis.valueMax = 110
|
||
|
lp.yValueAxis.valueStep = 2
|
||
|
|
||
|
drawing.add(lp)
|
||
|
|
||
|
return drawing
|