The Rectangle tag is used to add a rectangle (Bounding Box) to an image without selecting a label. This can be useful when you have only one label to assign to a rectangle.

Use with the following data types: image.


Param Type Default Description
name string Name of the element
toName string Name of the image to label
[opacity] float 0.6 Opacity of rectangle
[fillColor] string Rectangle fill color in hexadecimal
[strokeColor] string "#f48a42" Stroke color in hexadecimal
[strokeWidth] number 1 Width of the stroke
[canRotate] boolean true Whether to show or hide rotation control
[smart] boolean Show smart tool for interactive pre-annotations
[smartOnly] boolean Only show smart tool for interactive pre-annotations


Basic labeling configuration for adding rectangular bounding box regions to an image

  <Rectangle name="rect-1" toName="img-1" />
  <Image name="img-1" value="$img" />
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