Roof Components - Purlins from Profile
The 'Purlins from Profile' function allows purlins to be adopted from the profile.
Using the selection list at the top of the dialog box you can choose existing settings. With the diskette icon you can save the current setting under the same name or a new name. Via the management icon new settings can be created, including by adopting existing settings, and existing settings can be modified or deleted. See 'Save settings' in the 'General Help' manual for details.
Purlin direction: With the 'Purlin direction' option you specify at which end of the purlin the purlin start and at which end the purlin end is located. For this purpose, the roof surface is viewed from the eaves. This information is important when writing the member numbers at the member start on the rafter-purlin plan and when you want to influence the position of the number.
In addition, this setting affects the transfer of the purlins to the machine: Two opposite purlins on a gable roof are both entered with the start on the left (Left -> Right). The rafters lie at different spacings on one roof surface and were adopted to the other roof surface in this way. Marks are generated on the purlins from the rafters. As a result, both purlins are different after sorting and are transferred separately to the machine. If one purlin has the start on the left and the opposite purlin has the start on the right, the marks on the purlins have the same distance to the respective member start. Therefore both purlins are identical and receive the same number during sorting.
After setting all values and options you can enter the purlins using the following controls:
All roof surfaces: On all roof surfaces where a profile hangs, all purlins are generated from the respective profile. If multiple profiles hang on a roof surface (possible with offsets in the floor plan), the program asks which profile should be used.
Continuous: On the graphically selected roof surface, all purlins are generated from the profile that hangs on the house side of that roof surface. If multiple profiles hang on that roof surface (possible with offsets in the floor plan), the program asks which profile should be used.
Length-limited: Using two points the length and position of the purlins can be specified. The first entered point simultaneously determines the roof surface on which the purlin is to be generated. The point halfway between the two chosen points additionally determines the point on the building outline from which the profile should be taken.
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