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 |
| |
2. | AngleStart = 210 AngleEnd = -30 | AfricaSunset, Classic, CleanWhite, DarkNight, DeepFire, IceColdZone, Mechanical, Retro, SportCar, White |
|
3. | AngleStart = 220 AngleEnd = -40 |
| |
4. | AngleStart = 215 AngleEnd = -35 |
|
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.



