Instructions
Once you have the basic idea as to how to use a given tool it is best to
just try it and get a feel for the use of the tool.
To draw a line:
- Activate the ruler by clicking on the ruler button.
- Adjust the ruler to the desired position by dragging it (click and
hold on some part of the ruler other than the outside yellow blocks) or
rotating it (click and hold either of the outside yellow blocks).
- Activate the pencil by clicking on the pencil button.
- Click in the drawing area and drag the mouse to draw a line along the
ruler.