This widget offers an efficient and resource-thrifty way to dispay meters. The scales are symmeric and gradient colors can be used. This widget has a default needle which is rendered directly by the system. By doing so, this widget requies far less system resources. It is suitable for HMIs that need many gauges and the gagues need to reflect the change of the values quickly. This widget supports layering images and it can be layered upon other background images for enhancing visual effects.
An educational vidoe is availble to get users started:
Set the radius of the circle around the centeral point. Users can set the radius to the maximum value and change the opacity for makeing this circle as the widget background.
Set the binding register for Needle 1. The needle starts with the minimum value of the binding register and change the angle according to the value of this register till the maximum value.
Set the binding register for Needle 2. The needle starts with the minimum value of the binding register and change the angle according to the value of this register till the maximum value.
Set the binding register for Needle 3. The needle starts with the minimum value of the binding register and change the angle according to the value of this register till the maximum value.