Family Types; Creating Family Types; Using Formulas For Numerical Parameters - Autodesk 24000-000000-9860 - Revit Architecture - PC User Manual

7 On the Options Bar, select Instance Parameter.
8 Save changes and load the family into a project. For information about loading a family, see
After the family is loaded into the project, select the component. Shape handles display and allow you to
resize the family without the need for creating new sizes in the Family Editor.

Family Types

The Family Types command applies predefined properties to different types within a family. You use this
command during creation of a user-defined family. The command is useful for labeling several different
sizes of the same component. For example, a double-hung window comes in many different sizes. Using the
Family Types command, you can create a series of different-sized double-hung windows within the same
family.
When you load the family with the different types into a project, you can then place any components of
that family type. For information about loading a family, see
This command is enabled only while Revit Architecture is in the Family Editor.

Creating Family Types

1 In the Family Editor, create the family component and label the permanent dimensions that
2 Click Settings menu
3 In the Family Types dialog, click New and enter a name for the new type.
4 Continue creating types by choosing New and entering different values for the properties as

Using Formulas for Numerical Parameters

Formulas allow you to create parameters that depend on other parameters for their values. A simple example
would be a width parameter set to equal twice the height of an object. In practice, formulas can be used in
many ways, both simple and sophisticated. Typical uses include embedding design relationships, relating a
number of instances to a variable length, and setting up angular relationships. For example, formulas can
be used to
Calculate area or volume of geometry
Create a clearance dimension parameter controlled by element size
Convert continuously variable values into integer values
Add shelves as the height of casework increases
Add diagonals in an open web joist as the length increases
366 | Chapter 8 Creating Your Own Components (Families)
NOTE When adding a new parameter, you can select Instance for the type in the Parameter Properties
dialog.
Loading Families on page 352.
appear. See Family Editor
Family Types, or click Family Types on the Design Bar.
NOTE You should create a type for each of the sizes of the component.
needed.
Loading Families
on page 376.
on page 352.