
Start the dimensioning command by clicking the Dimension Line icon on the
Arrows toolbar. This toolbar is not visible by default. The dimension line is placed
automatically on the Dimension Lines layer so that you can hide dimension lines if
you wish.
Figure 230: a) Delimiting the edges with guide lines
b) Dragging the dimension line (anticlockwise)
c) Finished dimension line
After clicking the Dimension Line icon, the mouse cursor changes into a small cross.
As we activated the option Dimension Line – Measure below Object, the dimensioning
should be made in a counterclockwise direction. Place the mouse cursor at the left
dimensioning point. Press the left mouse button and drag the mouse to the right
dimensioning point. Release the mouse button. If you press the Shift key while
dragging the mouse, you will restrain the dimensioning line in a horizontal (or
vertical) direction (see Figure 230b).
In the same way you can draw a vertical dimension line on the AND gate. The
dimensioning of the NEGATION symbol should also be simple to accomplish, but it is
important that for such small components you zoom in enough to accurately position
the lines.
Editing dimension lines
Dimension lines can be subsequently edited. You can select single dimension lines
which are displayed with four handles, located at the end of the dimension lines
(Figure 231).
Figure 231: Editing dimension lines
With the upper handles you can (only) change the length of the guide lines. With the
lower handles you can move the points that are being dimensioned. If you select the
dimension text, you can edit the font type and size as well as changing the dimension
units of the text.
If you only want to edit the text of the dimension, double-click on an unselected
dimension line to enter text edit mode.
182 OpenOffice.org 3.3 Draw Guide
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