AnnotationArrow

The AnnotationArrow node places an arrow by setting its tail and head point. It inherits from AnnotationBase and can be moved and stretched.

Platform Support

This element is fully supported on XR-Windows, XR-Portable Windows, XR-Portable iOS, XR-Portable Android, and XR-P WASM platforms.

Handles position and behavior

The AnnotationArrow has two handles; one designed to set the head position, the other the tail.

• Because this annotation is a line and not an shape, it does not support the proportionalResize functionality.

• For the same reason, to deselect the arrow, it's enough to click out of the arrow line.

  

Head customization

The arrow head is made up of two legs joining at the head point. It's possible to customize the length and angle of these legs using the shapeHeadParams field.

The shapeHeadParams field is expressed in multiples of line thickness to keep the aspect proportional to the shapeTickness value. The values represent offset used to define the arrow head legs length and angle.

Positioning AnnotationArrow

AnnotationArrow differs from other Annotation nodes due to its linear nature and the capability to rotate. For this reason, positioning and orienting the AnnotationArrow node using postion, size, headUV, and tailUV fields can be difficult to master.

The preferred way to perfectly place an AnnotationArrow is through the setFromScreenPositions field.

AnnotationArrow fields

AnnotationArrow has a few type-specific fields.

Field inheritance: NodeBase > RectBase2D > AnnotationBase > AnnotationArrow