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Example: Setting up a motion path

The Motion path effect moves an object along a path consisting of a

combination of straight and curved lines. Several pre-packaged paths

are provided in OOo, but it is not difficult to create your own custom

path. Start by selecting the object you want to animate and selecting a

pre-packaged motion path animation that is similar to the effect you

want to obtain. Alternatively use the Polygon or Curve animation to

create a new path.

Select the object to show the animation path, which will be displayed

as a thin gray line with a triangle showing the starting point and

another indicating the end point. Click on any point on the line so that

blue handles are displayed around it. When the blue handles around

the path are shown, you can move or resize the path the same way

you would perform these operations on a graphic object.

Note

When moving a path, remember to also move the object on that

path; otherwise the animation will start with a jump. Currently it

is not possible to rotate a path.

If instead you want to modify the individual points on the line, select

the Points tool from the Drawing toolbar while the path is

selected. The Edit Points toolbar of Figure 181 should be displayed; if

not, select it from View > Toolbars > Edit Points.

Figure 181: The Edit Points toolbar

Once a point is selected, you can add an additional point, delete it,

move it and so on. For a detailed explanation on how to manipulate the

points on a curve, see the Draw Guide. Once you are satisfied with the

shape of the curve and its speed, click anywhere on the screen to

deselect the object and continue normal editing.

Figure 182 shows a polygon motion path with a curved section.

You can combine a motion with other effects such as spinning or

changing of size or colors to create dramatic effects.

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