OpenOffice.org OpenOffice - 1.0 User's Guide Page 71

  • Download
  • Add to my manuals
  • Print
  • Page
    / 115
  • Table of contents
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 70
Managing 3D Objects and Bitmaps
Here you can see that the front face has a length and breadth that is 50% smaller than the
back face. It is even possible to set the scaled depth to more than 100% and thus have a front
face that is larger than the back face.
The Rotation angle parameter is useful for some shapes that are made by revolving a profile
about an axis. This parameter lets you decide whether or not the rotation will be complete
(360°). Figure 25 shows what you can obtain with a hemisphere and a value of 270°.
The Depth parameter lets you define the depth of a 2D object that has been transformed into
a 3D object. This value can be changed at any time. The parameter doesn't apply to 3D
primitives.
The two following parameters (Horizontal and Vertical segments) let you define the
number of segments for the rounded shapes. The higher the number, the smoother the surface
of the shape will be, but the longer it will take to display. In Figure 26, the left-hand sphere is
made up of 10 horizontal and vertical segments, whereas the right-hand sphere is made up of
25 segments.
The five following buttons (called Normals) let you modify the normals of your 3D objects.
A normal is a straight line that is directed perpendicularly across the surface of an object.
Note: Format > 3D > Geometry to access this menu.
Draw Guide 63
Figure 24 - Scaled Depth of 50%
Figure 25 - Rotation Angle of 270°
Figure 26 10 line segments (left) and
25 line segments (right).
Page view 70
1 2 ... 66 67 68 69 70 71 72 73 74 75 76 ... 114 115

Comments to this Manuals

No comments