pointCloud2 QML Value Type

This message holds a collection of N-dimensional points, which may contain additional information such as normals, intensity, etc. The point data is stored as a binary blob, its layout described by the contents of the "fields" array. More...

Properties

• data : ArrayBuffer
• fields : list<pointField>
• header : header
• height : uint32_t
• isBigendian : bool
• isDense : bool
• pointStep : uint32_t
• rowStep : uint32_t
• width : uint32_t

Detailed Description

The point cloud data may be organized 2d (image-like) or 1d (unordered). Point clouds organized as 2d images may be produced by camera depth sensors such as stereo or time-of-flight.

pointCloud2 is a structured value type usable in QML. It maps directly to the sensor_msgs::msg::PointCloud2 ROS 2 message type.

Construct a pointCloud2 in QML by assigning a JavaScript object whose keys are its component properties, or by setting those properties individually.

See also PointCloud2Publisher and PointCloud2Subscriber.

Property Documentation

data : ArrayBuffer

fields : list<pointField>

Describes the channels and their layout in the binary data blob.

header : header

Time of sensor data acquisition, and the coordinate frame ID (for 3d points).

height : uint32_t

2D structure of the point cloud. If the cloud is unordered, height is

1 and width is the length of the point cloud.

isBigendian : bool

isDense : bool

pointStep : uint32_t

rowStep : uint32_t

width : uint32_t