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Converting a 2D layout grid to a curtain wall unit
When you create a curtain wall unit from a 2D layout grid, you also create a
new curtain wall unit style. The divisions in the new curtain wall unit style
are taken from the divisions in the layout grid.
Curtain wall unit grids are one-dimensional, divided either horizontally or
vertically. To create the horizontal and vertical patterns in the 2D layout grid,
the curtain wall unit 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 unit grid from a 2D layout grid, you need to
decide the direction of the primary grid in the curtain wall unit. 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 unit grids. The grid cells, frame, and mullions are assigned
default definitions.
1564 | Chapter 21 Curtain Walls
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