Forums >> Revit Building >> Technical Support >> creating a solid that changes in height and width. Sweep will not work.

PatrickReynolds

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Joined: Tue, Oct 28, 2008
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Hello, I'm presently trying to create a semi-complex ceiling structure for the lobby space of one of my buildings.  This ceiling structure is a semi-spiral and changes in width and height as it progress through the space.  I've simulated this idea using a mass (see img002 attached), and tried to create a roof by face so that I can just have the form of it in my perspectives.  The problem is that it will not allow me to create the roof from the top face (the one that has the changes in width and height). 

So now I'm tryingt o come up with a way to create a solid form that will do this.  I can create it using a mixture of the mass and model lines, but I don't know of any way to make a series of model lines into a solid.  An extrusion won't work because it requires at least four straight sides, which this doesn't have; and a sweep or blend sweep won't work because the forms are not getting smaller linearly, and actually spead out at the end (see img001).

So, the question now becomes, how can I create the roof from the top plane of my mass, or how do I create solid that I can manipulate both vertically and horizontally? 

 EDIT

Figured it out, for some reason it really just didn't create the top face, so I had to reselect the top edge lines, create a new form from them and it worked.

Attached Images

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