Curtain Wall Settings: Scheme Page

In Curtain Wall System Settings, the Scheme page sets the System-level default settings for Schemes.
Scheme Tool Settings contains identical controls. Scheme Tool Settings is available in Curtain Wall Edit mode only. Use the Class pop-up to apply System-level Scheme settings to the selected Curtain Wall. If you customize any parameters in Scheme Tool Settings, the Class pop-up will show “Custom.”
Primary Gridlines: Use these controls to define the grid pattern in the Primary direction.
Important: The “Primary” grid direction of any Curtain Wall is determined when you first create the Curtain Wall: the primary direction will always be perpendicular to the input vector. For example, if you create a Curtain Wall that is extruded from a polyline, the primary grid direction for each Curtain Wall segment is the direction perpendicular to the polyline segment. If you create an arced Curtain Wall, the primary grid direction is the same direction as the Curtain Wall surface created by extruding it from the input arc.
Total size: This item gives you feedback on the total length of the grid pattern in its primary direction.
Secondary Gridlines: Use these controls to define the grid pattern in the Secondary direction.
Important: The “Secondary” grid direction by default is perpendicular to the Primary grid direction (i.e. rotated 90 degrees). However, you can set a rotation angle (20 to 160 degrees) for the Secondary gridlines, relative to the primary gridlines.
Rotation: Enter a Rotation value for the Secondary Gridlines relative to the Primary Gridlines.
Note: Even if you alter the Rotation angle, this will not be reflected in the Preview window, but it will be applied to the Curtain Wall.
Total size: This item gives you feedback on the total length of the gridline pattern in its secondary direction.
The Preview window gives you a preview of your grid pattern and the alternating panel classes. Use the Preview window to define the panel class associated to each panel in the pattern.
Custom Origin: This option will enable you to graphically move the grid pattern in its primary direction, after you have placed and selected the Curtain Wall.
Start with Segment: The grid pattern will begin at the start of the reference segment.
Start from Center: The grid pattern will begin at the center of the reference segment, and will be distributed in two directions, on each side of this center. (This option means that the center of the Curtain Wall will always have a gridline running through it.)
Align to Center: The center of the grid pattern will be placed at the center of the reference segment.
End with Segment: The grid pattern will begin at the endpoint of the reference segment.
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