Autodesk 00308-011408-9F30A - VLA AUTOSKETCH R8-MEDIA W9X/NT, Руководство пользователя, Страница: 74 / 400

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Chapter 6 Customizing the Grid
There are three isometric grid types to choose from—each offering a different
drawing plane for the snap grid. Isometric Top aligns the snap and line grids
along 30- and 150- degree axes. Isometric Left aligns the grids along 90- and
150- degree axes. And Isometric Right aligns the grids along 90- and 30- degree
axes. When drawing a 3D model, you can use the Isometric grids to draw on
a top, left, or right plane.
To set up the isometric reference grid
1 On the Tools menu, click Drawing Options. The Drawing Options dialog
box appears.
2 Click the Grid page tab, then click an Isometric page tab.
3 (optional) Check the Keep Grid Square check box. When the check box is
unchecked, you must enter both horizontal and vertical values in each of
the following steps.
4 Enter the distance between gridpoints in the Snap Interval text box.
5 (optional) Check the Major as Interval check box. This check box is the
direct link between the displayed grid and the snap interval grid. When
the check box is unchecked, you must enter the number of snap intervals
between major lines. When the check box is checked, you must enter the
interval between major lines.
6 (optional) Enter the number of snap intervals between major lines in the
Major Frequency text box.
7 (optional) Enter the distance between major lines in the Major Interval
text box.
8 Select a style from the Minor Style drop-down list box.
■
None removes the minor lines from the reference grid.
■
Subdivisions creates a pattern of minor lines, equally spaced between
major lines.
■
Offset creates one minor line, offset a specific distance from the major
line.
■
Double Offset creates minor lines offset a specific distance on both
sides of each major line.