Deadzone

Component Type: Processor (Subcategory: Signal Shaping)

The purpose of this component is to define active and passive areas (zones) for one- or two dimensional sensor values. This function could also be called "resting zone" or "centerzone". It can be useful for example when a mouse pointer should not move before a certain value of a sensor (displacement of an analogue sensor, strength of activity) is reached.

Input Port Description

• inX [double]: Input of x values. This input port supports synchronization
• inY [double]: Input of y values. This input port supports synchronization
• radius [double]: The radius of the active/passive zone around the centre point.

Output Port Description

• outX [double]: Output of modified x values.
• outY [double]: Output of modified y values.

Event Listener Description

• setCenter: An incoming event stores the current x- and y- input values to represent the centre (It defines them as offset values). This can be useful for sensor calibration because it defines the "baseline" or resting position.

Event Trigger Description

• enterZone: This event is triggered when the x or x- and y- values enter the specified radius around the centre.
• exitZone: This event is triggered when the x or x- and y- values leave the specified radius around the centre.

Properties

• xCenter [double]: This value defines the x- position of the centre (the middle of the active/passive zones).
• yCenter [double]: This value defines the y- position of the centre (the middle of the active/passive zones).
• radius [double]: The radius of the active/passive zone around the centre point.
• mode [integer]: Selects the mode of operation of the centerzone component, following modes are available:
  • "only inner values": x- and y- values are passed to the output ports only if the distance to the centre is lower than the given radius.
  • "only outer values": x- and y- values are passed to the output ports only if the distance to the centre is greater than the given radius.
  • "deadzone": x- and y- values are passed to the output ports only if the distance to the center is lower than the given radius, and additionally a correction of the values is performed so that they start with 0 when leaving the inner zone. This is useful for defining a "deadzone" for sensor values, where an inactive area shall be provided and no sudden acceleration is desired when leaving this inactive area.