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After choosing the type of object, left-click on the starting point and drag the mouse

diagonally until the outline of the object is the size you want.

After releasing the mouse button, the 3D object appears. To change the height:width

ratio of the object, keep the Shift key pressed while dragging the mouse. Most of

these objects are constructed by rotation. Cubes and spheres are special types of 3D

objects that are directly defined in the OOo program code.

3D scenes

Variations 1–3 all produce a result known as a 3D scene. If you click on a 3D scene,

the status bar text shows 3D scene selected. Such a scene is actually a group of

objects.

If you constructed the scene using one of the above methods, it consists of the 3D

body as a single element. 3D scenes can, however, be extended to include other 3D

objects, as described in “Combining objects in 3D scenes” on page 134.

As mentioned in Chapter 6 (Editing Pictures), you can access individual elements of

the group using Modify > Enter group or the context menu. The status bar text

then changes and shows the type of each individual element selected, for example

Sphere selected or Extrusion object selected.

Producing 3D shapes

Since the release of Version 2.0 of OpenOffice.org, Draw contains a type of drawing

object known as a (Basic) Shape. A special method of extrusion exists for these

shapes.

Variation 4: Extrusion of basic shapes

Figure 132: The Basic Shapes toolbar

You use the Basic Shapes toolbar (or another shape toolbar) to produce 2D surfaces.

Shapes such as cylinders or cubes are technically possible but not very useful,

because they produce curiously curved images. If you have drawn a shape, the last

icon on the Drawing toolbar is active. A click on this icon can transform a 2D

surface into a 3D object (see Figure 133).

Extrusion of a shape does not create a new object type but just changes the shape’s

appearance. All the object’s properties and settings are retained. You can use this

button to toggle between a 2D and a 3D view. The actual object properties and

settings are not lost in the switching operation from one view to another.

Figure 133: 3D objects from basic shapes

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OpenOffice.org OpenOffice - 3.3 Guía de usuario Pagina 114