Adaptive Families / element geometry and intersection

[Anonymous]

Hi folks,

I’m creating a bridge with Revit 2017 2.2. I use nested adaptive families for the bridge design. I put cross sections along a grade and sweep them.

But when I create sections, it is not possible to measure them.

So I thought I can create a flat disc through the bridge and use the geometry that intersects to draw modellines in the section view to measure.

3D-View

 

Section View

But as you see, the adaptive familie doesn’t intersect! Only the “normal” generic model families create intersections with the disc.

I figured out, that there is no element geometry behind my adaptive family. The generic model families with sweeps inside have element geometries.

Warning: Element.Geometry failed. Value can not be null.

So is there a possibility to intersect with adaptive families? Is there an other way to get measurable section views or what am I doing wrong?

[FAIR59 · Accepted solution]

Adaptive Families are shared. The geometry of shared nested families doesn't "transfer" to the bridge family.

So you have to find the nested families to get their geometry.

FamilyInstance instance; // bridge
List<ElementId> nestedFamilyIds =  instance.GetSubComponentIds().ToList();

[Anonymous]

Thanks, that helps a lot!

[Anonymous]

Hm,

I tried

for subcomp in item.GetSubComponentIds():
		itemlist.append(item.Document.GetElement(subcomp).ToDSType(True))

But then I only get the other adaptive families inside the element and not the 3-D solid body I created. Is there a way to get the 3-D solid body also?

[FAIR59]

In general, I would say the geometry should be available. In your specific case, I can't comment without access to your project and family.

[Anonymous]

Hi,

there were 3 solid bodies in one family. This was probably the problem. I decided to create every solid in an extra family and know the geometry is available.

Thanks for your help.