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Three-Fourth Circular Scales

In the Gauge Control, the Three-Fourth Circular scales are implemented as the TdxGaugeCircularThreeFourthScale and TdxGaugeDBCircularThreeFourthScale objects, corresponding to unbound and data-aware scale versions, respectively.

Since Three-Fourth Circular scales occupy up to three-fourths of the full-circular scale layout, the possible arc angles depend on the currently selected style of the scale:

Maximum and Minimum Scale Angle Values Specified via the OptionsView Parameters

Scale Visual Styles

Scale Example

1.

AngleStart = 225

AngleEnd = -45

iStyle

2.

AngleStart = 210

AngleEnd = -30

AfricaSunset, Classic, CleanWhite, DarkNight, DeepFire, IceColdZone, Mechanical, Retro, SportCar, White

3.

AngleStart = 220

AngleEnd = -40

Disco, Future, Smart, YellowSubmarine

4.

AngleStart = 215

AngleEnd = -35

Military

In three-fourth circular scales, the range of displayed values can occupy any portion of the arc lying between the minimum and maximum angle values that depend on the current visual style:

As in the case of full-circular scales, you can swap the starting and ending angle values, inverting the scale’s range of displayed values:

Like the minimum and maximum angles of the range of displayed values, a particular shape of a three-fourth circular scale’s background layer depends on the currently selected style.