Java Reference
In-Depth Information
The
PieChart
class is actually simpler to use than the rest of the charts listed.
PieChart
uses a sequence of
PieChart.Data
to represent the data that will be plotted, where you
provide
PieChart.Data.label
and
PieChart.Data.value
properties. Both
PieChart
and
PieChart3D
share the same properties and can be easily switched for one another.
Chart customization
The Chart API makes it easy to customize the look and behavior of your charts. Depending on
the type of the chart you are creating, you have access to an assortment of properties that
you can customize, including the data element's paint, effect, stroke, and node. You also have
the ability to specify interaction behavior by providing an
action:function()
property for
each data element on the chart using the
Data
class.
The
BarChart
class allows you to provide an instance of the
Node
class for each data item
in the data series. To illustrate how to use this feature, we modify the code from the recipe
(leaving only three data members) and define a function for the property
BarChart.Data.
barCreator
as shown in the next code snippet. You can get the entire code listing from
ch06/source-code/src/chart/BarChartCustomDemo.fx
.
def width = 640;
def barWidth = (width/6) - 30;
var dataSeries = [
BarChart.Series {
name: "Nokia"
data: [
BarChart.Data {category: cats[0] value: 16.1},
BarChart.Data {category: cats[1] value: 15.4}
]
