RangeSubscriber QML Type

Subscribes to sensor_msgs::msg::Range messages — Single range reading from an active ranger that emits energy and reports one range reading that is valid along an arc at the distance measured. More...

• List of all members, including inherited members

Properties

• fieldOfView : real
• header : header
• maxRange : real
• message : range
• minRange : real
• radiationType : uint8_t
• range : real
• variance : real

Signals

• messageReceived(range msg)

Detailed Description

This message is not appropriate for laser scanners. See the LaserScan message if you are working with a laser scanner.

This message also can represent a fixed-distance (binary) ranger. This sensor will have min_range===max_range===distance of detection. These sensors follow REP 117 and will output -Inf if the object is detected and +Inf if the object is outside of the detection range.

RangeSubscriber receives range values from a ROS 2 topic. Set the topic and node properties, then connect to the messageReceived() signal.

See also RangePublisher and range.

Property Documentation

fieldOfView : real

The fieldOfView field of the last received message. Updated whenever a new message arrives. fieldOfViewChanged is emitted on every update.

header : header

The header field of the last received message. Updated whenever a new message arrives. headerChanged is emitted on every update.

maxRange : real

The maxRange field of the last received message. Updated whenever a new message arrives. maxRangeChanged is emitted on every update.

message : range

The last message received on topic. Updated whenever a new message arrives.

minRange : real

The minRange field of the last received message. Updated whenever a new message arrives. minRangeChanged is emitted on every update.

radiationType : uint8_t

The radiationType field of the last received message. Updated whenever a new message arrives. radiationTypeChanged is emitted on every update.

range : real

The range field of the last received message. Updated whenever a new message arrives. rangeChanged is emitted on every update.

variance : real

The variance field of the last received message. Updated whenever a new message arrives. varianceChanged is emitted on every update.

Signal Documentation

messageReceived(range msg)

Emitted when a new range arrives on topic. msg contains the received value.