ROI ARC Donut Entity Tool

The ROI ARC Donut Entity is a green Arc that appears on the screen that can be adjusted and manipulated and inputted into other tools. Some tools work on the entire image and others allow you to define where you want them to work. The ROI ARC allows you to tell that tool where to work. The ROI ARC can be placed anywhere on the Viewer window and can be resized and rotated as needed.

Using the ROI ARC Entity Tool

The tool can be dragged and dropped into any tools inputs page that calls for an ROI. The tool can also be dragged and dropped directly into a sequence. If dropped into a sequence the green version of the ROI will appear. To manipulate the ROI click on it. It will then turn red and have four handles on it which will allow the user to manipulate its size and orientation.

If you right-click inside the ROI Arc it will display the ROIEntity edit page.  Selecting the Entity tab allows you to adjust the colors, thickness, handle size and visibility of the ROI box.  You can also select a Coordinate System - this controls how the ROI understands where it is on the screen.

The Donut page will give the user information on the X,Y coordinates, the size, and the angles of the ROI Arc Donut.