Operation Manual

Figure 59: Symmetric transition
Smooth transition
Smooth Transition converts a corner point or symmetrical point into a smooth point. Both control
points of the corner point are aligned in parallel, and can only be moved simultaneously. The
control points may differentiate in length, allowing you to vary the degree of curvature.
1) Convert the object to a curve and click on the selection handle where you want to place the
tangent.
2) Click on the Smooth Transition icon on the Edit Points toolbar so you can adjust
separately the lengths on each side of a tangent to make a curve flatter or steeper.
3) Click and drag one of the tangent handles to change the shape of the object. This creates
an asymmetric tangent; the curve is flatter on the longest side of the tangent (Figure 60).
Figure 60: Smooth transition
Corner point
Use Corner Point tp convert the selected point or points into corner points. Corner points have two
movable control points, which are independent from each other. A curved line, therefore, does not
go straight through a corner point, but forms a corner.
It is possible to change independently the angle on each side of a tangent using the central point of
the tangent as a corner point.
1) Convert the object to a curve and click on the selection handle where you want to place the
corner point.
2) Click on the Corner Point icon on the Edit Points toolbar to create a corner point at the
selected point (Figure 61).
3) Click and drag the end of one of the tangents to change its angle. Each tangent can be
moved independently to create spikes and troughs in curves.
62 LibreOffice 4.3 Draw Guide