Drawing Tools

Annotation and shape drawing tools can be accessed by moving the mouse pointer to the bottom of either the left or right video panes, causing the tool palette to appear.

Drawing Tools Pallete
There are five tool type available: As the mouse is moved over each tool it will be temporarily highlighted. To select a tool click on the icon in the palette. A selected tool will remain highlighted to show it is ready to be used. Clicking on a tool multiple times cycles it through available variants including unselecting the tool (highlight disappears).
 * Rectangular drawings
 * Circle drawings
 * Line drawings
 * Angle drawings
 * Magnifying

Right rectangle
Draw an upright standard rectangle.

Drawing sequence: click : drag : click

Skewed rectangle
Draw a rotated and skewed rectangle.

Drawing sequence: click : drag second corner : click : drag final shape : click

Circle
Draw a circle.

Drawing sequence: click center : drag : click

Circle with dot
Draw a circle with a central dot.

Drawing sequence: click center : drag : click

Simple line
Draw a simple line with no arrows.

Drawing sequence: click : drag : click

Single arrow
Draw a simple line with one arrow.

Drawing sequence: click : drag : click

Double arrow
Draw a simple line with two arrows.

Drawing sequence: click : drag : click

Simple angle
Draw a simple angle with no arrows.

Drawing sequence: click : drag : click vertex : drag : click

Single arrow
Draw a simple angle with one arrow.

Drawing sequence: click : drag : click vertex : drag : click

Double arrow
Draw a simple angle with two arrows.

Drawing sequence: click : drag : click vertex : drag : click

2X zoom
Zoom in by a factor of two.

Zooming sequence: click : drag zoom rectangle : click

Click the highlighted magnifying glass tool again to unzoom.

Erasing Drawings
Right click on a pane with drawings to erase each shape one at a time in reverse order of creation.

Hold down the right mouse button for about 2 seconds to erase all drawings on the pane at once.