PointsAnnotation
An array of points on a 2D image.
Parent schema
PointsAnnotation appears in the following message schemas: ImageAnnotations.
Schema
| Field | Type | Description |
|---|---|---|
timestamp | time | Time when the annotation was created. |
type | PointsAnnotationType | Type of points annotation to render. |
points | Point2[] | List of 2D points in image coordinates (pixels). |
outline_color | Color | Color used for the outline of points or lines. |
outline_colors | Color[] | Per-point outline colors (if type is POINTS) or per-segment stroke colors (if type is LINE_LIST, LINE_STRIP, or LINE_LOOP). |
fill_color | Color | Fill color for points. |
thickness | float64 | Stroke thickness in pixels for outlines or lines. |
Reference implementations
Foxglove schemas are independent of any specific framework and can be used with any supported message encoding. The schema names should be specified as seen below:
| Encoding | Schema |
|---|---|
| ROS 1 | foxglove_msgs/PointsAnnotation |
| ROS 2 | foxglove_msgs/msg/PointsAnnotation |
| JSON | foxglove.PointsAnnotation |
| Protobuf | foxglove.PointsAnnotation |
| FlatBuffers | foxglove.PointsAnnotation |
| OMG IDL | foxglove::PointsAnnotation |