parameterValue QML Value Type

Used to determine which of the next *_value fields are set. More...

Properties

• boolArrayValue : list<bool>
• boolValue : bool
• byteArrayValue : ArrayBuffer
• doubleArrayValue : list<double>
• doubleValue : double
• integerArrayValue : list<int64_t>
• integerValue : int64_t
• stringArrayValue : list<string>
• stringValue : string
• type : uint8_t

Detailed Description

ParameterType.PARAMETER_NOT_SET indicates that the parameter was not set (if gotten) or is uninitialized. Values are enumerated in `ParameterType.msg`.

parameterValue is a structured value type usable in QML. It maps directly to the rcl_interfaces::msg::ParameterValue ROS 2 message type.

Construct a parameterValue in QML by assigning a JavaScript object whose keys are its component properties, or by setting those properties individually.

See also ParameterValuePublisher and ParameterValueSubscriber.

Property Documentation

boolArrayValue : list<bool>

An array of boolean values.

boolValue : bool

Boolean value, can be either true or false.

byteArrayValue : ArrayBuffer

An array of bytes, used for non-textual information.

doubleArrayValue : list<double>

An array of 64-bit floating point values.

doubleValue : double

A double precision floating point value following IEEE 754.

integerArrayValue : list<int64_t>

An array of 64-bit integer values.

integerValue : int64_t

Integer value ranging from -9,223,372,036,854,775,808 to

9,223,372,036,854,775,807.

stringArrayValue : list<string>

An array of string values.

stringValue : string

A textual value with no practical length limit.

type : uint8_t

The type of this parameter, which corresponds to the appropriate field below.