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Point On
Midpoint
Intersection
More
Trace
Stop Trace
142
Tap the object where you want the new point to be and press
E
. If you select a point that has been placed on an
object and then move that point, the point will be constrained
to the object on which it was placed. For example, a point
placed on a circle will remain on that circle regardless of how
you move the point.
If there is no object where you tap, a point is created if you
then press
E
Tap where you want one point to be and press
where you want the other point to be and press
point is automatically created midway between those two
points.
If you choose an object first—such as a segment—choosing
the Midpoint tool and pressing
between the ends of that object. (In he case of a circle, the
midpoint is created at the circle's center.)
Tap one of the two intersecting objects and press
Tap the other object and press
one of the points of intersection.
Keyboard shortcut:
Displays a list of points for
you to choose the one you
want to trace. If you
subsequently move that
point, a trace line is drawn
on the screen to show its
path. In the example at the
right, point B was chosen to
be traced. When that point was moved—up and to the left—a
path of its movement was created.
Trace creates an entry in Symbolic view. In the example
above, the entry is Trace(GB).
Turns off tracing and deletes the definition of the trace point
from Symbolic view. If more than one point is being traced, a
.
E
E
g
. Tap
E
E
adds a point midway
E
. A point is created at
Geometry
. A
.
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