OpenOffice.org OpenOffice - 3.2 Základní průvodce stáhnout pdf (Strana 88)

100

101

Rotation and perspective

To rotate a 3D chart or view it in perspective, enter the required values

on the Perspective page of the 3D View dialog. You can also rotate 3D

charts interactively; see page 90.

Figure 64: Rotating a chart

Some hints for using the Perspective page:

• Set all angles to 0 for a front view of the chart. Pie charts and

donut charts are shown as circles.

• With Right-angled axes enabled, you can rotate the chart contents

only in the X and Y direction; that is, parallel to the chart borders.

• An x value of 90, with y and z set to 0, provides a view from the

top of the chart. With x set to –90, the view is from the bottom of

the chart.

• The rotations are applied in the following order: x first, then y,

and z last.

• When shading is enabled and you rotate a chart, the lights are

rotated as if they are fixed to the chart.

• The rotation axes always relate to the page, not to the chart’s

axes. This is different from some other chart programs.

• Select the Perspective option to view the chart in central

perspective as through a camera lens instead of using a parallel

projection.

Set the focus length with the spin button or type a number in the

box. 100% gives a perspective view where a far edge in the chart

looks approximately half as big as a near edge.

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