Manual

Geometry 143
four vertices are named D, E, G, and H. Moreover, each of
the six segments is also given a name: I, J, K, L, M, and N.
These names are not displayed in Plot view, but you can see
them if you go to Symbolic view (see “Symbolic view in detail”
on page 148).
Naming objects and parts of objects enables you to refer to
them in calculations. This is explained in “Numeric view in
detail” on page 150.
You can rename an object. See “Symbolic Setup view” on
page 150.
Selecting an
object
To select an object, just tap on it. The color of a selected item
changes to cyan.
To select a point in Plot view, just press
E. A list of all
the points appears. Select the one you want.
Hiding names You can choose to hide the name of an object in Plot view:
1. Select the object whose label (that is, caption) you want
to hide.
2. Press
Z.
3. Select Toggle Caption.
4. Press J.
Redisplay a hidden name by repeating this procedure.
Moving objects Points To move a point press E. A list of all the points
appears. Select the one you want to move, then tap on the
new location for it, and press
E.
You can also select a point by tapping on it.
In addition to tapping a new location for a selected point, you
can press the arrow keys to move the point to a new location,
or use a finger to drag the point to a new location.
A point can also be selected directly by tapping on it. (If the
bottom-right of the screen shows the name of the point, you
have accurately tapped the point; otherwise the pointer
coordinates are shown, indicating that the point is not
selected.)
Composite objects To move a multi-point object, see
“Translation” on page 161.