ItemFactoryBaseNewFamilyInstance(XYZ, FamilySymbol, XYZ, Element, StructuralType) Method

Inserts a new instance of a family into the document, using a location, type/symbol, the host element and a reference direction.

Namespace: Autodesk.Revit.Creation
Assembly: RevitAPI (in RevitAPI.dll) Version: 27.0.4.0 (27.0.4.0)
Syntax
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public FamilyInstance NewFamilyInstance(
	XYZ location,
	FamilySymbol symbol,
	XYZ referenceDirection,
	Element host,
	StructuralType structuralType
)

Parameters

location  XYZ
The physical location where the instance is to be placed.
symbol  FamilySymbol
A FamilySymbol object that represents the type of the instance that is to be inserted.
referenceDirection  XYZ
A vector that dictates the direction of certain family instances.
host  Element
A host object into which the instance will be embedded
structuralType  StructuralType
If structural then specify the type of the component.

Return Value

FamilyInstance
If creation was successful then an instance to the new object is returned, otherwise .
Exceptions
ExceptionCondition
ArgumentExceptionThrown if The symbol is not active.
Remarks
This method allows you to create FamilyInstance objects that require both a location and direction. If the instance fails to be created an exception may be thrown.

The type/symbol that is used must be loaded into the document before this method is called. Families and their symbols can be loaded using the Document.LoadFamily or Document.LoadFamilySymbol methods.

Some Families, such as Beams, have more than one endpoint and are inserted in the same manner as single point instances. Once inserted these linear family instances can have their endpoints changed by using the instance's Element.Location property.

Note: if the created family instance includes nested instances, the API framework will automatically regenerate the document during this method call.

Example
C#
Copy
// Get a floor to place the beds
 FilteredElementCollector collector = new FilteredElementCollector(document);
 Floor floor = collector.OfClass(typeof(Floor)).FirstElement() as Floor;
 if (floor != null)
 {
     // Find a Bed-Box family
     Family family = null;
     FilteredElementCollector famCollector = new FilteredElementCollector(document);
     famCollector.OfClass(typeof(Family));
     ICollection<Element> collection = famCollector.ToElements();
     foreach (Element element in collection)
     {

         if (element.Name.CompareTo("Bed-Box") == 0)
         {
             family = element as Family;
             break;
         }
     }

     if (family != null)
     {
         // Enumerate the beds in the Bed-Box family
         FilteredElementCollector fsCollector = new FilteredElementCollector(document);
         ICollection<Element> fsCollection = fsCollector.WherePasses(new FamilySymbolFilter(family.Id)).ToElements();
         IEnumerator<Element> symbolItor = fsCollection.GetEnumerator();

         int x = 0, y = 0;
         int i = 0;
         while (symbolItor.MoveNext())
         {
             FamilySymbol symbol = symbolItor.Current as FamilySymbol;
             XYZ location = new XYZ(x, y, 0);
             XYZ direction = new XYZ();
             switch (i % 3)
             {
                 case 0:
                     direction = new XYZ(1, 1, 0);
                     break;
                 case 1:
                     direction = new XYZ(0, 1, 1);
                     break;
                 case 2:
                     direction = new XYZ(1, 0, 1);
                     break;
             }
             FamilyInstance instance = document.Create.NewFamilyInstance(location, symbol, direction, floor, StructuralType.NonStructural);
             x += 10;
             i++;
         }
     }
 }
See Also