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Modelling and drafting in ARCHICAD. (Example: How can I model a Roof soffit/fascia?)

Moderators: ejrolon, Barry Kelly, Karl Ottenstein, LaszloNagy, gkmethy

User avatar
By Susanne Olsson
#36811
Hi Kim,

Is there any way I can create a truss from a spline?


I believe AC want's lines or arcs and NOT spline elements when selecting the Create Truss command under the Extra menu ... :(
By kim_engrob
#36831
I have created a "vaulted roof polyarc profile".
Now I need to make a truss in the same shape. I know trussmaker won´t use the spline i used for the roof!!
What do i do? Can anyone help me?

Best regards

Kim Engrob, Student Århus DK
User avatar
By Karl Ottenstein
#36837
kim_engrob wrote:I have created a "vaulted roof polyarc profile".
Now I need to make a truss in the same shape. I know trussmaker won´t use the spline i used for the roof!!
What do i do? Can anyone help me?


Included in your online (F1) help system as well as a PDF on the installation CD is a book by David Nicholson-Cole, "Introduction to Object Making". Find section 2.7 of that book, which is also online here:
http://download.graphisoft.com/ftp/publ ... 20-028.htm

You will be creating a GDL object for the truss... the sentence about how to view and save the slabified truss is the critical step.

Using this method, you can create any custom truss or bracket shape easily, with each component having its own materials. If your truss has multiple materials, you can even use Arexline's free rxAutoMaterials add-on to automatically convert the saved object into one with parametric materials, so you can change the materials later. No GDL programming required!

Have fun! ;-)

Karl
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User avatar
By Mike Hann
#36846
kim_engrob wrote:I have created a "vaulted roof polyarc profile".
Now I need to make a truss in the same shape. I know trussmaker won´t use the spline i used for the roof!!
What do i do? Can anyone help me?

Best regards

Kim Engrob, Student Århus DK


Does it work to "trace" the polyarc with the arc tool such that you have a series of lines and arcs. You might even be able to explode the polyarc and avoid the intermediary step. Truss maker uses center lines to reference from.