2D bounding boxes

This geometry shape is drawn using the bounding box tool. The tool is used to mark the extreme points of objects such as vehicles, animals and pedestrians.

If we can predict a bounding box at the target location, it will appear when you mouse over the object. If it is a bad prediction, you can simply press escape to hide and ignore it.



Press anywhere inside the box to move it to another place.

You can edit the size of the box by dragging the corner control points or anywhere on the edges of the box.

Some tasks ask you to mark a line on the bounding box — for example to indicate a horizon, a ground contact line, or a split between two regions of the object. When a class is configured for this, the Reference Line tool becomes available, and the line you draw is stored as a property of the box.

A reference line always belongs to a bounding box and runs across the whole box, either vertically or horizontally. The orientation is fixed by the task — you place the line, you do not choose its direction.

To adjust it, drag the line along its axis: a vertical line moves left and right, a horizontal line moves up and down. The line stays within the box.