Person tracker

A marker for each target of a presence radar that reports coordinates, such as the HLK-LD2450: it glides to the new position (about 0.25 s) and fades out when the target is lost. One entity per target.

- entity: sensor.radar_target_1_x
  type3d: tracker
  object_id: person_tracker_1
  tracker:
    sensor_y: sensor.radar_target_1_y
    unit: m
    flip_x: true
    zone: sensor.radar_target_1_zone
    sensor_position: [-400, 0, 450]
    sensor_rotation: -135
    scale: 0.1
    color: '#FF5500'

The X coordinate comes from sensor_x, from an x attribute of the entity, or from its state; Y from sensor_y or from a y attribute.

Option	Default
sensor_x, sensor_y		The sensors of the coordinates.
unit	mm	mm, cm or m: the unit of the coordinates.
flip_x, flip_y	no	Mirror an axis.
sensor_position	[0, 0, 0]	Where the radar is: [x, y, z] from the middle of the bottom of the model, which the card centres on 0 (for a house 1400 cm wide, its corner is at [-700, 0, -700]).
sensor_rotation	0	Which way it faces, in degrees.
scale	0.001	From the unit of the radar to the model.
zone		An entity whose state is shown above the head (the zone).
label	yes	no hides it.
color	#FF5500	The colour of the marker.
size	15	Its size.
height	150	Its height, in cm.

A radar that publishes metres with the X axis already mirrored needs unit: m and flip_x: true. While only trackers (or a shower) move, the card draws at most 30 frames a second.