def make_x_axis(self, x_label, x_min, x_max, x_step):
self._add(self,
Label(),
name='XLabel',
validate=None,
desc="The label on the horizontal axis")
self.XLabel.fontName = 'Helvetica'
self.XLabel.fontSize = 10
self.XLabel.x = 22
self.XLabel.y = 45
self.XLabel.textAnchor = 'middle'
self.XLabel.maxWidth = 500
self.XLabel.height = 20
self.XLabel._text = x_label
self.chart.xValueAxis = XValueAxis()
self.chart.xValueAxis.labels.boxAnchor = 'autox'
self.chart.xValueAxis.valueMin = x_min
self.chart.xValueAxis.valueMax = x_max
self.chart.xValueAxis.valueStep = x_step
self.chart.xValueAxis.labels.fontName = "Helvetica"
self.chart.xValueAxis.labels.fontSize = 10
self.chart.xValueAxis.visibleTicks = 1
self.chart.xValueAxis.labels.rightPadding = 0
self.chart.xValueAxis.labels.dx = 1
def sample5d():
"Sample drawing, xvalue/yvalue axes, y connected at left of x."
drawing = Drawing(400, 200)
data = [(10, 20, 30, 42)]
xAxis = XValueAxis()
xAxis.setPosition(50, 50, 300)
xAxis.configure(data)
yAxis = YValueAxis()
yAxis.setPosition(50, 50, 125)
yAxis.joinAxis = xAxis
yAxis.joinAxisMode = 'left'
yAxis.configure(data)
drawing.add(xAxis)
drawing.add(yAxis)
return drawing
def sample4d():
"Sample drawing, xvalue/yvalue axes, y connected to top of x."
drawing = Drawing(400, 200)
data = [(10, 20, 30, 42)]
yAxis = YValueAxis()
yAxis.setPosition(50, 50, 125)
yAxis.configure(data)
xAxis = XValueAxis()
xAxis._length = 300
xAxis.joinAxis = yAxis
xAxis.joinAxisMode = 'top'
xAxis.configure(data)
drawing.add(xAxis)
drawing.add(yAxis)
return drawing
def sample7b():
"Sample drawing, xvalue/ycat axes, y connected at left of x."
drawing = Drawing(400, 200)
data = [(10, 20, 30, 42)]
xAxis = XValueAxis()
xAxis._length = 300
xAxis.configure(data)
yAxis = YCategoryAxis()
yAxis.setPosition(50, 50, 125)
yAxis.joinAxis = xAxis
yAxis.joinAxisMode = 'left'
yAxis.categoryNames = ['Beer', 'Wine', 'Meat', 'Cannelloni']
yAxis.labels.boxAnchor = 'e'
yAxis.configure(data)
drawing.add(xAxis)
drawing.add(yAxis)
return drawing
def sample4c1():
"xvalue/yvalue axes, without drawing axis lines/ticks."
drawing = Drawing(400, 200)
data = [(10, 20, 30, 42)]
yAxis = YValueAxis()
yAxis.setPosition(50, 50, 125)
yAxis.configure(data)
yAxis.visibleAxis = 0
yAxis.visibleTicks = 0
xAxis = XValueAxis()
xAxis._length = 300
xAxis.joinAxis = yAxis
xAxis.joinAxisMode = 'bottom'
xAxis.configure(data)
xAxis.visibleAxis = 0
xAxis.visibleTicks = 0
drawing.add(xAxis)
drawing.add(yAxis)
return drawing
def __init__(self):
PlotArea.__init__(self)
self.reversePlotOrder = 0
self.xValueAxis = XValueAxis()
self.yValueAxis = YValueAxis()
# this defines two series of 3 points. Just an example.
self.data = [
((1,1), (2,2), (2.5,1), (3,3), (4,5)),
((1,2), (2,3), (2.5,2), (3,4), (4,6))
]
self.lines = TypedPropertyCollection(LinePlotProperties)
self.lines.strokeWidth = 1
self.lines[0].strokeColor = colors.red
self.lines[1].strokeColor = colors.blue
self.lineLabels = TypedPropertyCollection(Label)
self.lineLabelFormat = None
self.lineLabelArray = None
# this says whether the origin is inside or outside
# the bar - +10 means put the origin ten points
# above the tip of the bar if value > 0, or ten
# points inside if bar value < 0. This is different
# to label dx/dy which are not dependent on the
# sign of the data.
self.lineLabelNudge = 10
# if you have multiple series, by default they butt
# together.
# New line chart attributes.
self.joinedLines = 1 # Connect items with straight lines.
#private attributes
self._inFill = None
self.annotations = []
self.behindAxes = 0
self.gridFirst = 0
xAxis.valueSteps = [10, 15, 20, 30, 35, 40]
xAxis.configure(data)
xAxis.labels.boxAnchor = 'n'
drawing.add(xAxis)
""")
from reportlab.graphics import shapes
from reportlab.graphics.charts.axes import XValueAxis
drawing = Drawing(400, 100)
data = [(10, 20, 30, 40)]
xAxis = XValueAxis()
xAxis.setPosition(75, 50, 300)
xAxis.valueSteps = [10, 15, 20, 30, 35, 40]
xAxis.configure(data)
xAxis.labels.boxAnchor = 'n'
drawing.add(xAxis)
draw(drawing, 'An axis with non-equidistant tick marks')
disc("""
In addition to these properties, all axes classes have three
properties describing how to join two of them to each other.
Again, this is interesting only if you define your own charts
or want to modify the appearance of an existing chart using
def drawLineChart(self, (names, start, end, data, title), reserved=None):
w = PAGE_WIDTH - 2 * inch
h = w * 0.6
drawing = Drawing(w, h)
lp = LinePlot()
lp.x = 0
lp.y = 0
lp.height = h - 30
lp.width = w
lp.data = data
lp.joinedLines = 1
lp.strokeColor = colors.black
lp.xValueAxis = XValueAxis()
lp.xValueAxis.valueMin = start
lp.xValueAxis.valueMax = end
lp.xValueAxis.valueSteps = [(start + i * (end - start) / 5)
for i in range(6)]
lp.xValueAxis.labelTextFormat = lambda seconds: time.strftime(
"%m/%d %H:%M", time.localtime(seconds))
lp.xValueAxis.labels.angle = 35
lp.xValueAxis.labels.fontName = 'Helvetica'
lp.xValueAxis.labels.fontSize = 7
lp.xValueAxis.labels.dy = -10
lp.xValueAxis.labels.boxAnchor = 'e'
lp.yValueAxis.labelTextFormat = lambda value: '%d MB' % (int(value) /
1000)
lp.yValueAxis.labels.fontName = 'Helvetica'
lp.yValueAxis.labels.fontSize = 7
