About families

00:04

Families that are parametric

00:05

ments that you use to create structural models.

00:08

The family describes the 3d shape,

00:11

the two D annotations and the associated properties.

00:15

Almost every element that you use within a project is a

00:18

family.

00:21

Each type of family has relationships with other elements.

00:25

For example, foundations were attached to structural columns,

00:29

the structural columns were attached to a grid.

00:32

The frame in embracing were then automatically adjust to suit

00:37

rev. It has three different kinds of families.

00:40

System families, loadable families and in place families.

00:46

In most cases,

00:47

system families are typically assemblies of multiple components and layers.

00:52

Some examples are shown below.

00:54

System families are embedded into rev

00:56

projects or templates and can be transferred between rev

00:60

projects with transfer project standards.

01:04

Loadable families form the largest area of content

01:07

that is used in a structural project.

01:09

Typical loadable content will be elements such as structural columns,

01:13

beams and foundations

01:17

in place.

01:18

Families are components that you can create

01:20

that are specific to a particular project.

01:23

For example,

01:24

you can see the wall foundation is placed in between

01:26

two families to connect the two wall foundations together.

01:32

Let's now begin by taking a look at some of the properties of families in rev.

01:38

The project just contains a simple structural frame to

01:41

demonstrate how families interact and interplay with each other.

01:45

Let's begin by taking a look at what happens when we change a grid.

01:50

So if I select grid C here,

01:52

we can see that the currently, the distance between grid B and C is 18 ft,

01:57

I'm going to change this to 24 ft

01:60

and straight away, you'll notice that the foundations then move the columns,

02:04

move the bracing updates and the

02:06

structural framing stretches to accommodate that change

02:12

here. You can see that we're using beam systems.

02:14

And again, this family is parametric.

02:16

So if I make a change here and we set this to 24 ft,

02:21

you'll notice here that rev adds an additional set of members in

02:24

and the bracing has now stretched to accommodate that change.

02:29

The structural framing itself is going to be hosted on a level.

02:33

If I select this level here, you'll notice currently in the properties pad, it,

02:37

the elevation is set to 10 ft.

02:40

Let's go ahead and change this to 15 ft.

02:43

And again, you'll notice that the whole project updates,

02:46

notice that order framing is assigned to that level and hence it moves

02:52

if I decide to change the level of a couple of columns.

02:55

So if I select the two structural columns here,

02:58

the base level is currently set to level one,

03:01

I'm going to change this to top of foundation.

03:04

And here you'll note that Ravi

03:06

is telling us that we have a structural foundation which

03:09

will also be moved to the bottom of the column.

03:12

What you're seeing here are relationships and

03:15

interplay between the various different types of Ravi

03:17

family.

03:18

And you can see each of them interacts together to form a parametric structure.

03:23

This is vital to understand how these components interact with each other.

03:28

So when we need to build a particular family,

03:30

we need to know how they're going to respond in the project.

03:35

Let's now take a look at the family editor interface

03:39

to begin. Go ahead and select the file ribbon

03:42

and on the file ribbon,

03:44

we'll go to new

03:45

and family.

03:48

We're now presented with the new family dialogue box.

03:50

And you'll note here that all of the template files have the file extension dot RFT

03:56

that stands for a rev template file.

04:00

Let's go ahead here and select generic model

04:04

click open

04:06

and you'll now notice that we are in a completely new environment within Ravi.

04:12

The new family file has loaded on top of the project.

04:15

And you'll note here that we're now in the

04:16

family editor.

04:18

If we take a look at the ribbon structure across the top,

04:21

you'll notice that we have a create ribbon

04:24

and here we can create our various 3d forms.

04:27

And of course,

04:28

we have specific tools here all relevant for the creation of families.

04:33

The project browser would allow us to switch views in our family editor.

04:37

So for example, at the minute, I'm in a floor plan,

04:40

but I could switch this to a 3d view or any one of these elevations here.

04:45

The properties pallet is showing me the

04:47

overall properties for the generic model category

04:50

categories are very important within rev

04:52

it

04:53

you've just seen in the project how each element interacts with each other.

04:57

That interaction is set by the categories. In

04:60

this particular example, here we've started the project off with a generic model.

05:04

However, on the create ribbon,

05:06

if I select family category and parameters,

05:10

you'll note here that we can change the

05:11

family category from generic model to something else.

05:14

Perhaps structural columns.

05:17

If I then click, OK.

05:19

This family is now configured as a structural column and would

05:22

automatically have the correct parameters and operation in the project file.