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Curtain wall grids are one dimensional—divided either horizontally or
vertically. To create the horizontal and vertical patterns in the 2D layout grid,
the curtain wall uses a primary grid with a secondary grid nested inside it. For
more information about nested grids, see Working with Nested Grids in Curtain
Walls on page 1464.
When you create a curtain wall grid from a 2D layout grid, you need to decide
the direction of the primary grid in the curtain wall. If you select horizontal,
the primary grid has horizontal divisions that cross over the vertical divisions
of the secondary grid. If you select vertical, the primary grid has vertical
divisions that cross over the horizontal divisions of the secondary grid.
Specifying primary division directions
The horizontal and vertical lines of the 2D layout grid define the divisions for
the curtain wall grids. The grid cells, frame, and mullions are assigned default
definitions. For more information, see Assigning Definitions to Curtain Wall
Elements on page 1461.
1 Open the tool palette that you want to use.
2 Right-click a curtain wall tool, and click Apply Tool Properties
to ➤ Layout Grid.
3 Select the layout grid to convert.
4 When prompted to erase the original geometry, press ENTER to
keep the layout grid, or enter y (Yes) to erase it.
5 Press ENTER to specify horizontal as the orientation for the primary
division, or enter v to specify vertical.
6 Enter a name for the curtain wall style generated from the grid
layout, and click OK.
7 Edit the properties of the curtain wall in the Properties palette, if
needed.
1414 | Chapter 21 Curtain Walls
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