The stand-alone Pie Chart Visualization is a pivoted version of the “Pie” Chart available through the standard charting component. The difference between the two options is the data structure that is expected by the Visualization.
The Chart Visualization expects series information to appear as attributes, individual columns within the data. Thus, the “Pie” Chart option in the Chart Visualization will show attributes (columns) as pie slices:
The stand-alone Pie Chart Visualization, however, expects series information to be rows of data, instead of columns. It will render individual rows as pie slices. This approach is desirable when showing tooltips. Since tooltips are based off of rows of data as well, when data is structured in this way the tooltips are able to show more useful information contained in other attributes.
Name used to identify this Visualization.
An attribute that contains values to use for series names. Each record value for this attribute will appear as the label for a pie slice.
An attribute that contains values which determine the size of each pie slice. Each record value for this attribute will be used to determine how large the pie slice is.
An optional text input used to enter a title for the Pie Chart.
The “Dynamic Series” option determines how pie slices are calculated.
A dynamic series means that pie slices will be automatically generated base on the unique values specified in the “Name Attribute” on the previous step.
The inclusion method provides different options for limiting records. It acts as a filter, reducing the number of pie slices that will appear in the pie chart. Options are:
This control will show the unique values in the data, at that time. It allows an administrator to specify values that should be excluded from the end visualization. For example, assume a dataset that contains days of the week. The exclusion property can be used to exclude weekends, so that the pie chart visualization only shows Mon – Fri.
For a dynamic series, the exact number of slices will not be known at design time. The slices will vary based on the records in the dataset at that time. The color palette property defines a set of colors to use for the pie chart. The Pie Chart will loop through the available colors in the palette, starting over if it runs out.
A static series allows an administrator to manually configure pie slices for the end visualization. The Static option builds up the list of values to show.
A Static Series allows more control over the color of specific pies slices. Instead of iterating through a palette of colors, Static lets you bind an explicit color to an explicit set of values. You can order the series to rearrange the pie slices.
A set of options affecting the presentation of the Pie Chart.
Determines whether or not a legend is shown below the chart, mapping the colors to the associated attributes.
Defines an inner radius, allowing the pie chart to be rendered like a donut chart. You can enter a number two ways:
Determines whether to show labels for the individual pie slices. Labels are shown as connectors (callouts) pointing to each associated pie slice.
Enabled when show label is set to Yes. This determines the distance of the label from the Pie Chart’s outer border.
Determines whether values equal to zero appear in the pie chart.
Provides a preview of the resulting Visualization.