#!/usr/bin/python
from pychartdir import *
#The data for the chart
data = [50, 55, 47, 34, 42, 49, 63, 62, 73, 59, 56, 50, 64, 60, 67, 67, 58, 59,
73, 77, 84, 82, 80, 84, 89]
#The error data representing the error band around the data points
errData = [5, 6, 5.1, 6.5, 6.6, 8, 5.4, 5.1, 4.6, 5.0, 5.2, 6.0, 4.9, 5.6, 4.8,
6.2, 7.4, 7.1, 6.5, 9.6, 12.1, 15.3, 18.5, 20.9, 24.1]
#The labels for the chart
labels = ["Jan 01", "-", "-", "Apr", "-", "-", "Jul", "-", "-", "Oct", "-", "-",
"Jan 02", "-", "-", "Apr", "-", "-", "Jul", "-", "-", "Oct", "-", "-",
"Jan 03"]
#Create a XYChart object of size 550 x 220 pixels
c = XYChart(550, 220)
#Set the plot area at (50, 5) and of size 480 x 180 pixels. Enabled both
#vertical and horizontal grids by setting their colors to light grey (0xc0c0c0)
c.setPlotArea(50, 5, 480, 180).setGridColor(0xc0c0c0, 0xc0c0c0)
#Add a legend box (50, 5) (top of plot area) using horizontal layout. Use 8 pts
#Arial font. Disable bounding box (set border to transparent).
legendBox = c.addLegend(50, 5, 0, "", 8)
legendBox.setBackground(Transparent)
#Add keys to the legend box to explain the color zones
legendBox.addKey("Historical", 0x9999ff)
legendBox.addKey("Forecast", 0xff9966)
#Add a title to the y axis.
c.yAxis().setTitle("Energy Consumption")
#Set the labels on the x axis
c.xAxis().setLabels(labels)
#Add a line layer to the chart
layer = c.addLineLayer2()
#Create the color to draw the data line. The line is blue (0x333399) to the left
#of x = 18, and become a red (0xd04040) dash line to the right of x = 18.
lineColor = layer.xZoneColor(18, 0x333399, c.dashLineColor(0xd04040, DashLine))
#Add the data line
layer.addDataSet(data, lineColor)
#Create the color to draw the err zone. The color is semi-transparent blue
#(0x809999ff) to the left of x = 18, and become semi-transparent red
#(0x80ff9966) to the right of x = 18.
errColor = layer.xZoneColor(18, 0x809999ff, 0x80ff9966)
#Add the upper border of the err zone
layer.addDataSet(ArrayMath(data).add(errData).result(), errColor)
#Add the lower border of the err zone
layer.addDataSet(ArrayMath(data).sub(errData).result(), errColor)
#Set the default line width to 2 pixels
layer.setLineWidth(2)
#Color the region between the err zone lines
c.addInterLineLayer(layer.getLine(1), layer.getLine(2), errColor)
#output the chart
c.makeChart("xzonecolor.png")
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