A
Description
PieChart is comprised of PieSet objects, in much the same way that LayeredChart is comprised of ChartLayer s. However, there is no overlap; each PieSet is a concentric ring in a single pie chart. Most commonly, there will only be a single PieSet, resulting in a traditional pie chart.
ThePiePlotArea object, available as PieChart.plot-area , represents the plot area of a PieChart. It can be used to specify a background and to describe the location and dimensions of the plot area. It also serves as the Shape container for all PieSets.
The
Notes
This object can be styled by writing style rules for "PieChart".
Example
Note the use of PieSet.label-data to provide labels and legend information for each wedge. In the absence of this value, no labels will be shown.
This example demonstrates multiple pie sets.PieSet.wedge-labels? is used to inhibit label generation for a cleaner chart. The inner ring corresponds to the "Age" data series, and the outer ring to "Wins".
Finally, this example demonstrates using multiple pie sets with thePieSet.label-set? property to display a label explaining what each ring is graphing.
This example demonstrates the use of gradients in a PieChart.
| Example: Using PieChart | |
 | |
{import * from CURL.GUI.CHARTS}
{import * from CHARTS-DOC,
location = "../docstring-support/gui/charts-doc.scurl"
}
{AntialiasedFrame
{PieChart
width = 10cm,
height = 10cm,
{PieSet
sample-records,
"Age",
label-data = {ChartDataSeries sample-records, "Name"}
}
}
}
|
This example demonstrates multiple pie sets.
| Example: Multiple PieSets inside a PieChart | |
 | |
{import * from CURL.GUI.CHARTS}
{import * from CHARTS-DOC,
location = "../docstring-support/gui/charts-doc.scurl"
}
{PieChart
width = 10cm,
height = 10cm,
pie-set-inner-margin = .5cm,
{PieSet
sample-records,
"Age",
wedge-labels? = false,
label-data =
{ChartDataSeries sample-records, "Name"}
},
{PieSet
sample-records,
"Wins",
wedge-labels? = false,
label-data =
{ChartDataSeries sample-records, "Name"}
}
}
|
Finally, this example demonstrates using multiple pie sets with the
| Example: Using PieSet.label-set? | |
 | |
{import * from CURL.GUI.CHARTS}
{import * from CHARTS-DOC,
location = "../docstring-support/gui/charts-doc.scurl"
}
{PieChart
width = 13cm,
height = 13cm,
pie-set-inner-margin = .5cm,
pie-label-radius = -7mm,
legend-enabled? = false,
{PieSet
sample-records,
"Age",
label-set? = true,
label-data =
{ChartDataSeries sample-records, "Name"}
},
{PieSet
sample-records,
"Wins",
pie-label-radius = -14mm,
label-set? = true,
label-data =
{ChartDataSeries sample-records, "Name"}
}
}
|
This example demonstrates the use of gradients in a PieChart.
| Example: Using gradients in a PieChart | |
 | |
{import * from CURL.GUI.CHARTS}
{import * from CHARTS-DOC,
location = "../docstring-support/gui/charts-doc.scurl"
}
{define-proc package {h-gradient
start-color:FillPattern,
end-color:FillPattern
}:FillPattern
{return
{LinearGradientFillPattern
{Fraction2d 0, 0},
{Fraction2d 1, 0},
{Spectrum.from-envelope
start-color,
0.0,
end-color,
1.0
}
}
}
}
{PieChart
width = 10cm,
height = 10cm,
color-palette =
{new {Array-of FillPattern},
{h-gradient "gray", "white"},
{h-gradient "blue", "lavender"},
{h-gradient "red", "mistyrose"},
{h-gradient "purple", "lavender"},
{h-gradient "lime", "mintcream"}
},
{PieSet
sample-records,
"Age"
}
}
|
