Arc Gauge

Overview

The Arc Gauge renders an swept arc (annulus). As with Needle Gauge , the arc gauge can specify a background image.

Note

The arc gauge may require a firmware update to be supported on your display.

In addition to Standard Gauge Properties , the following properties may be configured:

Property	Description
Type	The type of gauge to be drawn, may be switched between Needle Gauge or Arc Gauge .
Background bitmap	The background gauge image. Clicking the Clear button clears the background bitmap.
Auto Size	Automatically calculate the radii and centre of the arc from the gauge width / height.
X Centre, Y Centre	The centre of the gauge from which the logical centre of the pointer will be drawn.
Outer Radius	Outer radius of the arc.
Inner Radius	Inner radius of the arc.
Thickness	Thickness of the arc (Outer Radius - Innter Radius).
Start Degrees	The number of degrees from 6 o’clock (the zero degree position) that the starting value of the gauge should be drawn.
End Degrees	The number of degrees from 6 o’clock (the zero degree position) that the end value of the gauge should be drawn.
Transparent box	If checked, then any colour in the background bitmap that matches the colour specified in Transparent Colour will not be drawn. This is useful when overlaying a round tacho bitmap gauge over another bitmap.