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   [Collapse]ArcScale Class
     ArcScale Members
    [Expand]ArcScale Constructor
    [Collapse]ArcScale Properties
      Appearance Property
      AutoRescaling Property
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 End-User Documentation
View this topic on docs.devexpress.com (Learn more)

ArcScale.AutoRescaling Property

Gets or sets whether the scale's range of values is automatically expanded when the scale's current Value reaches either the MinValue or MaxValue.

Namespace:DevExpress.XtraGauges.Core.Model
Assembly:DevExpress.XtraGauges.v19.2.Core.dll

Expanded Syntax

Property value

Type: Boolean
true if the auto-expanding of the scale's minimum and maximum values is enabled; otherwise, false.
The default is false.

Expanded Remarks

If the AutoRescaling property is set to false, values of the MinValue and MaxValue properties are fixed, and they are not dependant on the scale's current Value.

Setting the AutoRescaling property to true enables the auto-adjustment of the scale's bounds depending on the current value.

The scale's MinValue is automatically reduced when the scale's current Value falls into the range [MinValue; MinValue+ThresholdMin]. Similarly, the scale's MaxValue is automatically increased when the scale's current Value falls into the range [MaxValue-ThresholdMax; MaxValue]. So, the scale's bounds are automatically expanded when the scale's Value reaches one of the bounds.

The ThresholdMin and ThresholdMax are marked for a circular gauge in the image below:

The actual values of the ThresholdMin and ThresholdMax are calculated according to the RescalingThresholdMin and RescalingThresholdMax properties, which specify these thresholds in percents.

The RescalingBestValues property, if set to true, enables the algorithm for smart MinValue and MaxValue calculations. This algorithm tries to set the MinValue and/or MaxValue to values that are multiples of 2, 3 or 5.

The CustomRescaling event allows you to implement a custom algorithm for the MinValue and MaxValue correction.

Expanded See Also

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