chart.py

'''
    Chart Features
    --------------

    This is an Area Chart that contains a Legend Widget to compare cost of living in paris.

'''

from reportlab.graphics.charts.axes import XValueAxis, YValueAxis, AdjYValueAxis, NormalDateXValueAxis
from reportlab.graphics.charts.lineplots import LinePlot, AreaLinePlot
from reportlab.graphics.charts.legends import LineLegend, Legend
from reportlab.graphics.shapes import Drawing, _DrawingEditorMixin, Rect, String
from reportlab.lib import colors
from reportlab.lib.colors import PCMYKColor
from reportlab.lib.formatters import DecimalFormatter
from reportlab.lib.units import inch
from reportlab.lib.styles import getSampleStyleSheet
from reportlab.platypus import *
from reportlab.rl_config import defaultPageSize

PAGE_HEIGHT=defaultPageSize[1]
styles = getSampleStyleSheet()
Title = Paragraph("COST OF LIVING IN  PARIS &nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp $3214.12/mo", styles["Heading1"])


drawing = Drawing(400, 200)

# chart
my_colors = PCMYKColor(50,0,100,20, alpha=40) ,PCMYKColor(0,100,100,40) ,PCMYKColor(100,0,90,50) ,PCMYKColor(0,0,0,40) ,PCMYKColor(10,0,100,11) ,PCMYKColor(15,0,0,0) ,PCMYKColor(0,0,0,50)
lp = LinePlot()
lp.x = 0
lp.y = 0
lp.width = 400
lp.height = 120
lp.lines[0].inFill=True
lp.lines[0].strokeColor = my_colors[0]
# x axis
lp.xValueAxis = NormalDateXValueAxis() # we change the axis type here
lp.xValueAxis.bottomAxisLabelSlack = 0
lp.xValueAxis.dailyFreq = 0
lp.xValueAxis.forceEndDate = True
lp.xValueAxis.forceFirstDate = True
lp.xValueAxis.gridEnd = 0
lp.xValueAxis.gridStart = 0
lp.xValueAxis.gridStrokeWidth = 1
lp.xValueAxis.joinAxisMode='bottom'
lp.xValueAxis.labels.angle = 30
lp.xValueAxis.labels.boxAnchor = 'e'
lp.xValueAxis.labels.dx = -2
lp.xValueAxis.labels.dy = -10
lp.xValueAxis.labels.fontName = 'Times-Roman'
lp.xValueAxis.labels.fontSize = 10
lp.xValueAxis.maximumTicks = 13
lp.xValueAxis.minimumTickSpacing = 20 # in points
lp.xValueAxis.strokeWidth = 1
lp.xValueAxis.tickDown =  10
lp.xValueAxis.visibleAxis = True
lp.xValueAxis.valueSteps = None
lp.xValueAxis.visibleGrid = True
lp.xValueAxis.xLabelFormat = '{mm},{dd},{yyyy}'
# y axis
lp.yValueAxis.avoidBoundFrac = 0.1
lp.yValueAxis.drawGridLast          = True
lp.yValueAxis.forceZero = True
lp.yValueAxis.gridStrokeWidth = 0.5
lp.yValueAxis.labels.dy = 0
lp.yValueAxis.labels.fontName = 'Times-Roman'
lp.yValueAxis.labels.fontSize = 10
lp.yValueAxis.labels.rightPadding   = 10
lp.yValueAxis.labelTextFormat = DecimalFormatter(places=0,thousandSep=',',decimalSep='.',prefix='$')
lp.yValueAxis.maximumTicks = 7
lp.yValueAxis.rangeRound='floor'
lp.yValueAxis.strokeWidth = 0.5
lp.yValueAxis.tickLeft = 5
lp.yValueAxis.tickRight = 0
lp.yValueAxis.valueMax = None
lp.yValueAxis.valueMin = None
lp.yValueAxis.valueStep = None
lp.yValueAxis.visibleAxis = True
lp.yValueAxis.visibleGrid = True
lp.yValueAxis.visibleTicks = True
lp.data = [[(19960901, 100000.0), (19961201, 109034.00000000001), (19970301, 110105.00000000001), (19970601, 127487.0), (19970901, 134702.0), (19971201, 136920.0), (19980301, 153788.0), (19980601, 158997.0), (19980901, 141245.0), (19981201, 171859.0), (19990301, 179215.0), (19990601, 193963.0), (19990901, 181679.0), (19991201, 202828.0), (20000301, 216832.0), (20000601, 218377.0), (20000901, 222553.0), (20001201, 220915.00000000003), (20010301, 204568.0), (20010601, 212621.0), (20010901, 185524.0), (20011201, 202977.0), (20020301, 204425.0), (20020601, 176716.0), (20020901, 143573.0), (20021201, 158079.0), (20030301, 153953.0), (20030601, 181898.0), (20030901, 186917.0), (20031201, 210109.0), (20040301, 214340.99999999997), (20040601, 217241.00000000003), (20040901, 207773.0), (20041201, 226420.99999999997), (20050301, 219802.0), (20050601, 224784.0), (20050901, 234346.0), (20051201, 238378.99999999997), (20060301, 244329.99999999997), (20060601, 237279.00000000003), (20060901, 250893.0)]]
lp.lines.strokeWidth     = .5

drawing.add(lp)
Elements = [Title, drawing]
def go():
   doc = SimpleDocTemplate('chart.pdf')
   doc.build(Elements)

go()