Polygon tool

The Polygon tool enables users to draw contours on the current image plane or adjust existing contours by dragging them along a direction.

The Polygon tool options available on the top bar

Workflow

1. Select the structure that you want to modify or create a new structure from the Structures tab.
2. Draw contours on the current image viewport by:
   1. Adding individual control points.
   2. Clicking & dragging from one point to another.
3. Adjust by creating new control points and dragging them.

Adjusting the drag strength

You may set the strength when dragging control points of existing contours, in one of three ways:

• By sliding the mouse over the box from the top bar
• By typing a specific number
• By clicking on the arrows

The preview will update accordingly.

tip

You may also adjust the strength by scrolling up/down with your mouse while keeping the Shift key pressed.