Using the Drawings & Annotations Toolbar

All image measurements are indicative only. Measuring and positioning tasks are carried out under your own responsibility.
For accurate measurements, images must be calibrated using a reference object of known length.
For panoramic images, calibration and measurement are only rough guides that apply only to the immediate vicinity of the calibration around the reference objects of known length.

The Drawings & Annotations toolbar () contains icons for functions that you can apply to a selected image.

Keyboard shortcuts are indicated with parenthesis ( ).

In some cases, relevant icons are grouped into an icon group. See Using Icon Groups.

Tip: Hold the mouse pointer over an icon to display a tooltip.

Select icon		Use this tool to select a drawing or measurement that you want to modify. Click to select the object, and the control points are shown.
Drawing icon group Note: The white triangle indicates an icon group.		Straight line icon See Drawing a Straight Line.
		Multi-segment line icon See Drawing a Multi-Segment Line (Polyline).
		Freehand line icon See Drawing a Freehand Line.
		Spline drawing icon See Drawing a Spline Curve.
		Circle icon See Drawing a Circle.
		Ellipse icon See Drawing an Ellipse.
		Filled ellipse icon See Drawing an Ellipse.
		Rectangle icon See Drawing a Rectangle.
		Filled rectangle icon See Drawing a Rectangle.
		Landmark point icon See Adding a Landmark Point.
		Arrow line icon See Drawing an Arrow.
Measurements icon group Note: The white triangle indicates an icon group. See Making Measurements.		Straight line measurement icon
		Multi-segment line measurement icon
		Angle measurement icon
		Orthogonal measurement icon
Text icon		See Adding a Text Annotation to an Image.
Implant icon group Note: The white triangle indicates an icon group.		Mandibular canal icon See Drawing a Mandibular Canal.
		Implants icon See Adding an Implant.
Calibration icon		See Using Measurements to Calculate Distances and Angles.
Undo icon		See Using the Undo and Redo Functions. (Ctrl+Z)
Redo icon		See Using the Undo and Redo Functions. (Ctrl+Y)
Delete icon		Delete selected drawings, annotations or measurements.
Color and Thickness icon		See Changing Object Color and Line Thickness.