def __init__(self, graphType = 'Pie', data = [ [[],[]] ]):
"""
Draw pieChart.
def __init__(self, graphType = 'Pie', data = [[dataList , dataLabels,
graphTitle, graphHeight,
graphWidth],...])
'dataList' contains the list of list of proportionate amounts of the slices
x1, x2, x3,..xn, the pie chart would have slices of percentages
(x1/sum) * 100, (x2/sum) * 100, ... (xn/sum) * 100, where
sum = x1 + x2 + x3 + ...+ xn
'dataLabels' are the corresponding list of list labels of the data given in
'dataList', so, it is expected that len(dataLabels) == len(dataList)
'graphTitle' is the title of the graph.
'graphHeight', 'graphWidth' are height and width of the graph, so the pie chart
can be elliptical. The values default to 2*inch, 2*inch.
One list [graphTitle, dataList ,dataLabels, graphHeight, graphWidth ] corresponds
to one chart. 'dataLabels', 'graphTitle', 'graphHeight', and 'graphWidth' are
optional
When more than one Pie Chart is to be drawn, i.e., len(data) > 1, we draw as many
charts aside to each other as possible (based on the height, width of the graph)
Extensions can be made to include other attributes such as label angle, slice
colors etc
"""
#Each chart is surrounded by self.chartSideCushion space on both the sides
#Each row is preceeded and succeeded by a cusion of self.interRowSpace
self.chartSideCushion = 7
self.interRowSpace = 21
#We fix the width assuming the pdf generated is either A4 of US Letter
flowableWidth = 7.5 * inch
data = self._setDefaults(data)
flowableHeight, self.rowBasedData = self._computeFlowableHeightAndRowBasedData(flowableWidth,
data)
FlowableGraph.__init__(self, flowableWidth, flowableHeight)
self.graphType = graphType
#'self.minChartAreaWidth' minimum width of a chart, this affects the total number
#of charts that can fit into a row
self.minChartAreaWidth = 3*inch
def __init__(self, x_vals, x_label, y_vals, y_label,
title, graphtypeList, legends = [], splitgraph = False,
xAxisDigits = 3, yAxisDigits = 3, dataLblDigits = 3, displayDataLbls = True,
dataLabelAngle = 0, xValsDisplayAngle = 0, strictYbounds = {},
additionalLine = []):
#x_vals - list of integers represented as strings. Ex: ['1', '2', '10']
#x_label - X axis title as string. Ex: "Time"
#y_vals - list of list of values. Ex: [[200, 300, 50], [1, 10, 12]]
#y_label - Y axis title as string. Ex: "FrameRate"
#title - Title for the graph as string. Ex: "Latency Measurement"
#graphtypeList - list of graph types as strings. Only 'Bar' and 'Line'
# supported for now. Ex: ['Line'] or ['Line', 'Bar']
#legends - List of legendLists. Each legendList should have a mandatory
# legend Name followed by optional type and color. Types
# supported now are 'Line' or 'Rect'. Color needs to be
# specified as an index pointing to one of the colors of
# colorList.
# Ex: [['Min', 'Line', colorList[1]], ['Max'], ['Avg', 'Rect']]
#splitGraph - Draws (tries to..) separate graphs for each set of
# y_val in the same chart area.
#xAxisDigits - number of digits after the decimal point for x axis
#yAxisDigits - number of digits after the decimal point for y axis
#dataLblDigits - number of digits after the decimal point for data label
#displayDataLbls - Flag indicating whether data labels are to be displayed
#dataLabelAngle - The angle at which the data label is to be displayed (so that we minimize the
# probability of one data label over running on the adjacent data label
#xValsDisplayAngle - The angle at which the x-axis ticks' names (categorys names) are to be displayed
# to aviod each over running onto the adjacent one
#strictYbounds- A dict containing the lower and upper bounds values, if any
# { 'lower': lowerBoundValue], 'upper': upperBoundValue}
#additionalLine- [x1, y1, x2, y2, String]. Allows a line to be drawn between points (x1, y1),
# (x2, y2) where (x1, x2), (y1, y2) are the points in the XValueAxis,
# YValueAxis respectively. 'String' is the string to be used for the l
# drawn for this line.
# This line is useful in such cases where a theoritical line needs to
# be drawn
width = 7.0 * inch
height = 3.5 * inch
FlowableGraph.__init__(self, width, height)
self.x_vals = x_vals
self.x_label = x_label
self.y_vals = y_vals
self.y_label = y_label
self.title = title
self.graphList = graphtypeList
self.splitgraph = splitgraph
self.betweenSplitsF = False
self.numSplits = 0
self.tmpYVal = 0
self.legendList = legends
self.legendsDrawnF = False
self.labelsDrawnF = False
self.xAxisDigits = xAxisDigits
self.yAxisDigits = yAxisDigits
self.dataLblDigits = dataLblDigits
self.displayDataLbls = displayDataLbls
self.dataLabelAngle = dataLabelAngle
self.xValsDisplayAngle = xValsDisplayAngle
self.additionalLine = additionalLine
self.strictYbounds = strictYbounds
#When a lower bound is give for self.y_vals, the assumption is one doesn't care
#about the plots below this lower value, so make all the values which are lower
#than the given lowest value (self.strictYbounds['lower']), as the lowest value
#Yes, this is a hack
if 'lower' in self.strictYbounds:
for i, eachPlot in enumerate(self.y_vals[:]): #Iterate over copy, as we change the actual values
for j, eachPoint in enumerate(eachPlot):
if eachPoint < self.strictYbounds['lower']:
self.y_vals[i][j] = self.strictYbounds['lower']
self.additionalLineF = False
if self.additionalLine:
self.additionalLineF = True