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4 Select the second color from the Bottom Color palette.
5 Review the new background effect in the preview box, and click OK.
To set an artificial horizon background
1 Click Tools ➤ Background.
2 In the Background Settings dialog box, select Horizon in the Mode drop-down list.
3 To set a graduated sky color, use the Sky Color and Horizon Sky Color palettes.
4 To set a graduated ground color, use the Horizon Ground Color and Ground Color palettes.
5 Review the new background effect in the preview box, and click OK.
Adjust Displaying of Primitives
You can enable and disable the drawing of surfaces, lines, points, snap points, and 3D text in the Scene Area.
Points are ‘real’ points in the model, whereas snap points mark locations on other primitives, for example the
center of a circle, and are useful for snapping to when measuring.
Surfaces
Surfaces are the triangles that make up the 2D and 3D items in the scene. You can toggle the rendering of surfaces
in the model.
To toggle the rendering of surfaces
■ Click Surfaces
on the Rendering Style toolbar.
Menu: Viewpoint ➤ Display ➤ Surfaces
Lines
You can toggle the rendering of lines in the model. You can also change the width of the drawn lines by using
the Options Editor.
To toggle the rendering of lines
■ Click Lines
on the Rendering Style toolbar.
Menu: Viewpoint ➤ Display ➤ Lines
To change the line width
1 Click Tools ➤ Global Options.
2 In the Options Editor, expand the Interface node, and click the Display options.
3 On the Display page, Primitives area, enter a number between 1 and 9 in the Line Size box.
This sets the width in pixels for lines drawn in the Scene Area.
4 Click OK.
172 | Chapter 7 Control Model Appearance and Render Quality