Here is some code that shows how to place adaptive components. In this case, the adaptive component contains 2 placement points. I wrote this to examine the shape of an element’s bounding box – you may find other uses for it.
public void bbox()
{
UIDocument uidoc = this.ActiveUIDocument;
Document doc = uidoc.Document;
// select an element
Element element = doc.GetElement(uidoc.Selection.PickObject(ObjectType.Element));
// get bounding box of the element
BoundingBoxXYZ bbox = element.get_BoundingBox(null);
// get adaptive component family instance
FamilySymbol fs = new FilteredElementCollector(doc).OfClass(typeof(FamilySymbol)).Cast<FamilySymbol>().First(q => q.Name == "Type 1" && q.Family.Name == "TwoPoint");
// create instances of the adaptive component
placeInstance(fs, bbox.Min, bbox.Max, "Space Diagonal");
placeInstance(fs, bbox.Min, new XYZ(bbox.Max.X, bbox.Max.Y, bbox.Min.Z), "Base diagonal");
placeInstance(fs, bbox.Min, new XYZ(bbox.Max.X, bbox.Min.Y, bbox.Min.Z), "vx");
placeInstance(fs, bbox.Min, new XYZ(bbox.Min.X, bbox.Max.Y, bbox.Min.Z), "vy");
placeInstance(fs, bbox.Min, new XYZ(bbox.Min.X, bbox.Min.Y, bbox.Max.Z), "vz");
}
// create a new instance of the family & set the location of endpoints and Comments parameter
private void placeInstance (FamilySymbol fs, XYZ xyz1, XYZ xyz2, string comment)
{
Document doc = fs.Document;
using (Transaction t = new Transaction(doc,"adaptive component"))
{
t.Start();
// place the adaptive component - adaptive points are automatically given some default position during creation
FamilyInstance fi = AdaptiveComponentInstanceUtils.CreateAdaptiveComponentInstance(doc, fs);
// get references to the adaptive points in the newly created instance
IList<FamilyPointPlacementReference> refs = fi.GetFamilyPointPlacementReferences();
// adaptive component points are named "start" and "end"
// move these points to the input XYZ locations xyz1 and xyz2
movePoint(doc, refs.First(q => q.Name == "start"), xyz1);
movePoint(doc, refs.First(q => q.Name == "end"), xyz2);
// get Comments parameter and set its value
fi.get_Parameter("Comments").Set(comment);
t.Commit();
}
}
// move an FamilyPointPlacementReference to a specified XYZ
private void movePoint(Document doc, FamilyPointPlacementReference point, XYZ xyz)
{
// need to subtract the default XYZ location of the point from the desired XYZ location
ElementTransformUtils.MoveElement(doc, point.PointReference.ElementId, xyz.Subtract(locationFromPoint(doc, point)));
}
// get the XYZ location of a FamilyPointPlacementReference
private XYZ locationFromPoint(Document doc, FamilyPointPlacementReference point)
{
Element e = doc.GetElement(point.PointReference.ElementId);
ReferencePoint rp = e as ReferencePoint;
return rp.Position;
}
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