Value Indicators
- 2 minutes to read
This topic defines value indicators and explains how to use them in analog gauges (circular and linear).
A Value Indicator is a pointer that allows you to track the changes of a data value or a data range in analog gauges.
Note
Use the gauge Designer to access value indicators at design time.
The following indicators are available depending on the gauge scale:
Arc Scale Indicators
A list of circular gauge indicators is shown below. It includes:
| Element | Description | Class |
|---|---|---|
| Needle | A needle indicates a value on a scale. It is oriented radially, starting at the scale’s center and pointing to the scale’s current value. | ArcScaleNeedleComponent |
| Range Bar | A circular gauge’s range bar is a filled sector that always starts at a fixed value along a scale and extends to another value (the scale’s current value or another fixed value). | ArcScaleRangeBarComponent |
| Marker | A marker is a small shape (for example, a rhombus, an arrow) indicating the current value along a scale. | ArcScaleMarkerComponent |
The following image illustrates value indicators in the arc scale and properties that correspond to an indicator’s current values:
See the following topic for more information on these visual elements: Circular Gauge Elements.
Linear Scale Indicators
A Linear scale includes the following indicator types:
| Element | Description | Class |
|---|---|---|
| Level Bar | A level bar is a visual element that associates its values with a specific scale. The level bar automatically fills a level along that scale, starting at the scale’s minimum value and extending to the scale’s current value. | LinearScaleLevelComponent |
| Range Bar | A range bar is a filled rectangle that represents a data range along a scale. The range bar starts at a certain fixed value along a scale and extends to the scale’s current value. | LinearScaleRangeBarComponent |
| Marker | A marker is a small shape (for example, a rhombus, an arrow) indicating the current value along a scale. | LinearScaleMarkerComponent |
The image below shows value indicators with specified properties that correspond to their current values in the linear scale.
See the following topic to learn more: Linear Gauge Elements.