A Gauge chart is a Bar chart with a radial axis and overlapping bars to show ranges. It uses the needle and the dial to represent the data. The direction of the needle and the colors in the dial shows the performance at a glance.

Gauge Chart

Gauge Plot Properties

The Gauge Plot properties discussed below can be accessed from the Properties Panel on selecting the Chart > Plot from the Report Explorer. You can access some of the important properties from the Plot's Smart Panel too. See Chart Smart Panels topic for more information. Both the Properties Panel and the Smart Panel can be accessed by right-clicking the plot in the design area.

Common

Action

The action to perform when the plot is clicked. The action can be a hyperlink, a bookmark, a drill-through, or a slice. For more details on each of these actions, see

LineStyle

The line style for the column and bar borders.

• LineColor: Specify the color of the border around columns or bars.
• LineStyle: Specify the line style of the border around columns or bars as 'Dashed', 'Dotted', 'Double', etc.
• LineWidth: Specify the line width of the border around columns or bars.

Name

The name of the plot. By default, a chart containing a single plot has the plot name as 'Plot1'.

Configurations

ClippingMode

The Clipping Mode determines how a plot (columns or bars) extends within the plot area. The ClippingMode can be set to

• Fit: Utilizes the free space to fit the plots within the plot area
• Clip: Clips off the excess bar or column lengths toward the right or the bottom
• None: Same as 'Fit' for bar and column plots.

Gauge Labels

Gauge labels collection that lets you set the labels, usually to display the exact pointer value.

• OffsetX and OffsetY: Positions label relative to chart center.
• Text: The text for the label. It supports expression format and can use aggregate functions such as =Sum(Fields!Quantity.value).
  By default, when a field from dataset is drag and dropped to Labels region of the Gauge chart, expression includes ‘Sum’ (=Sum(Fields!Quantity.value) functions, since it is likely to be used most commonly.

Gauge Pointers

Gauge pointers collection that lets you customize the needle and the needle pin.

• End: Specifies where the needle will point to. The value is same as the Data Field. By default, when a field from dataset is dragged and dropped to Data Fields region of Gauge chart, the expression includes ‘Sum’ (=Sum(Fields!Quantity.value) function, since it is likely to be used most commonly. 
• NeedlePinWidth: Width of the needle pin.
• NeedleWidth: Width of needle.

InnerRadius

Inner radius of the gauge is the percentage relative to the chart's outer radius.

Opacity

The Opacity is the percentage value of the opacity of the plot fill color. 100% opacity means the columns or the bars are opaque while 0% opacity means that they are completely transparent.

Rules

Rules control the appearance of plots based on specified conditions. For more information on conditions, see Rules topic.

StartAngle

Indicates the arc angle that defines the clockwise rotation of the chart. For Gauge charts, the default is '-45' degrees. A full rotation makes 360 degrees.

Sweep

Indicates the arc degrees from 0 to 360 which decides the length of the arc occupied by the plot. For Gauge charts, the default is '270' degrees.

Encodings

Gauge chart has only one encoding type.

Values Encoding

The Values encoding specifies the data values. This encoding plots the ranges on the gauge's dial. It is important to note that the data value fields should be added in the descending order, for example, 800 > 600 > 400 >200 or the actual field names. In design time, the Values encoding is located below the chart, in the ‘Ranges’ section. See the Create Gauge Chart walkthrough for more information.

The Values property is the collection of items and each item includes the following properties.

Type

The Type property provides 'Simple' and 'Complex' options to choose from. However, for Gauge plots, 'Simple' is acceptable.

Value

The Value property is the collection and usually takes a bound field. However, the Gauge plot takes the first item from the collection.

Aggregate

To show aggregated values such as Average, Count, and Sum instead of individual values, specify an Aggregate function.