Skip to main content
Version: 8.1

Vision - Radar Chart

Component Palette Icon:


Radar charts, also known as web charts, spider charts, spider plots, and a few other names, display a dataset as a two dimensional polygon. The plot is arranged as a set of spokes with equal angles between them. Each spoke represents a value axis for the variable it corresponds to. Each dataset is then drawn as a connected polygon, where the points of the polygon are arranged on the spokes according to their value. Each row of the dataset has a minimum and maximum column -- these values are used to determine the scale of the spoke for that variable, with the midpoint representing the desired value.

The intended use of radar plots is to display realtime information in such a way that outliers can be quickly identified. This can be an efficient way to convey if a process is running on-spec or off-spec at a glance.

The radar chart gets its data from a dataset. Each row in the dataset will become a single variable (spoke) on the chart. The dataset must have a columns labeled "Value", "Min", and "Max"; other columns will be ignored. To display realtime data on a radar chart, you can use a cell-update binding to bind individual values to tag values. You can also drop tags onto a radar chart, with the EngMin binding to min and EngMax binding to max. If there are no existing cell-update bindings, the tags will replace existing data, otherwise the tags will be added to the end of the dataset. Alternatively, you can have realtime information stored by a transaction group to a database table, and drive the radar chart's dataset with a query binding.

Refer to Radar Chart to learn more.


NameDescriptionProperty TypeScriptingCategory
Actual Fill ColorFill color for the actual polygon. Can be chosen from color wheel, chosen from color palette, or entered as RGB or HSL value. See Color Selector.Color.actualFillColorAppearance
Actual Stroke ColorStroke color for the actual polygon. See Color Selector.Color.actualStrokeColorAppearance
Actual Stroke WidthStroke width for the actual polygon.float.actualStrokeWidthAppearance
Background ColorThe background color of the component. See Color Selector.Color.backgroundAppearance
BorderThe border surrounding this component. Options are No border, Etched (Lowered), Etched (Raised), Bevel (Lowered), Bevel (Raised), Bevel (Double), and Field Border.
Note: The border is unaffected by rotation.

Changed in 8.1.21
As of 8.1.21, the "Button Border" and "Other Border" options are removed.
Border InsetThe amount of area that the chart should be inset from the component bounds.double.borderInsetAppearance
CursorThe mouse cursor to use when hovering over this component. Options are: Default, Crosshair, Text, Wait, Hand, Move, SW Resize, or SE
DataContains the datapoints for the radar plot. Each row represents a spoke and point on the polygon.Dataset.dataData
Desired Fill ColorFill color for the desired polygon. See Color Selector.Color.desiredFillColorAppearance
Desired Stroke ColorStroke color for the desired polygon. See Color Selector.Color.desiredStrokeColorAppearance
Desired Stroke WidthStroke width for the desired polygon.float.desiredStrokeWidthAppearance
NameThe name of this component.String.nameCommon
QualityThe data quality code for any Tag bindings on this component.QualityCode.qualityData
Show Desired ShapeDisplay the desired shape on the chart.boolean.showDesiredShapeAppearance
Spoke ColorThe color to use for the chart's spokes and exterior ring. See Color Selector.Color.foregroundAppearance
Spoke WidthThe line width for the chart's spokes and exterior ring.float.strokeWidthAppearance
StylesContains the component's styles.Dataset.stylesAppearance
VisibleIf disabled, the component will be hidden.boolean.visibleCommon


Component Functions

This component does not have component functions associated with it.

Extension Functions

This component does not have extension functions associated with it.

Event Handlers

Event handlers allow you to run a script based off specific triggers. See the full list of available event handlers on the Component Events page



Radar Charts display realtime information in such a way that outliers can be quickly identified. In this example, the Radar Chart plotted the values forming a polygon using the raw data in the code block below. You can quickly see where the process is out-of-spec and compare the values to where they should be.

Radar Chart - Dataset Editor

Radar Chart - Raw Data