mastering revit book

8/12/2019 Mastering Revit Book

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Moving forward in time, lets now show only the elements in the New Construction phase. S

ase filter to Show New and only one wall will be displayed, as shown in Figure 10.30.

gure 10.30Showing only new elements

Now comes the final phase filter setting, Show Complete (Figure 10.31). This shows onl

sting elements that remain undemolished from all previous phases up to the phase assigned t

w. Elements that are demolished in any phase are not displayed, and neither existing nor

ments are overridden. This phase filter is most often used for camera views where a rendy need to be generated of the finished conditions without any sort of graphic overrides.


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gure 10.31Showing finished conditions

Creating and Using Groupss easy to think of groups as functionally similar to blocks in AutodeskAutoCADtools or ce

croStation, but groups can be much more. They are great at maintaining repetition within

oject, but there are some major differences:

Creating groups is quite easy. And whether its a 2D or 3D group, the insertion point for the

group is easily defined and modified. The same cant be said of simple 2D blocks in other

applications.

Updating groups is a breeze. Its easy and intuitive to modify a group after its been created.

Practically anyone on your team can do it, which means that design workflow will not bottle

in your project team.

Copying groups throughout your project is also a breeze. Groups can be copied across differ

levels, rotated, and even mirrored.

There are a few good practices that youll want to keep in mind when using groups. But theyaightforward that youll wonder how youve ever worked without them.

reating Groupsu can create two kinds of groups in Revit. One kind is just for geometry, and theyre called m

oups. The other is just for view-specific content like text, tags, dimensions, and so on, and th

led detail groups. You can create one kind of group or the other explicitly. But if you try to c

roup with both model and detail elements, Revit is smart enough to create a separate detail g

ts associated with the model group.


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To demonstrate this, open a new project using the default template and start by drawing four w

shown in Figure 10.32. Add the dimensions shown in the figure as well.

gure 10.32Four walls and dimensions

Select the walls and dimensions you just created, and click the Create Group buttoncontextual ribbon on the Create panel. Keep the default name Group 1 for both Model Group

tached Detail Group (Figure 10.33).

gure 10.33Creating the model and attached detail group

Now select the group of walls and copy it to the side of your original group. Youll notice that

model-based group is copied, which is fine for now (Figure 10.34).

gure 10.34Copied group


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Associating the detail group is simple. Select the group and then clic

tached Detail Groups button from the Group panel, and youll see the dialog box shown in F

35. Select the check box for Group 1 from the list and click OK.gure 10.35Attached Detail Group Placement dialog box


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The results are fairly straightforward (Figure 10.36). Both groups are now identical with geom

d dimensions.

gure 10.36Identical groups

Modifying Groupsw that youve created two identical groups, lets add a door to one of the walls that belong

oup, as shown in Figure 10.37. But dont add the door to the groupjust place it in one of the you would with any nongrouped wall.

gure 10.37Adding a door outside of Edit Group mode

Now select the group to the left (the one with the new door) and click

oup from the Group panel. Youll enter a special editing environment, shown in Figure 10.38

nongrouped elements will be grayed out. This color is to alert you that you are in Edit Gode. Here youll be able to add, remove, and attach other elements to your group.

gure 10.38Edit Group mode


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Now add the door to the group by selecting the Add function from the

oup panel. Youll notice that you cant add the door numbers because this is a model group

s are 2D components. Now finish the group by selecting the Finish button (the green check)

ull notice that both groups have a door in the same location (Figure 10.39).

gure 10.39Finished group

The process is essentially the same for modifying any group: Enter Edit Group mode, mak

anges and/or additions, and then finish the group.

reating New Groupsmetimes the easiest way to make a new group is to copy and modify an old one. To do this

plicate the group. A quick way to do this is to right-click the name of the group you wa

plicate in the Project Browser and choose Duplicate from the context menu, as shown in F


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40.

gure 10.40Duplicating a group

Back in the view window, select your group. Notice in the Type Selector that you can

ween groups in the same way you can swap between types within a family. Using this me

ghlight the group you created at the beginning of this exercise and swap the new group you cr

duplicating. Exchange Group 1 for Group 2 so you have one of each group type on the screen.

Select Group 2 and enter Edit Group mode for this second group. Edit it by making it 136 sq

m), as shown in Figure 10.41; then finish the group.

gure 10.41Modifying the second group

Groups have insertion points that you need to consider before you exchange one group for ano

hen you create a group, the insertion point is initially at the geometric center of all the eleme

group. The groups origin is also identified by x- and y-coordinates.

But keep in mind that as you edit the group, the insertion point doesnt move unti

iberately relocate it. This can be seen in Figure 10.42; editing the geometry for Group 2 retain

me insertion point that was active when the group was initially created. Even though wodified the group, the insertion point remains where it was originally when the group was cre


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oup. Once this happens, the previous graphic issue is resolved since walls easily join a

oups, as shown in Figure 10.54.

gure 10.54Resolved wall graphics

est Practices for Groupsoups are great for creating and maintaining design iteration within a single project. And th

o great for maintaining consistency across multiple projects because groups can be saved

ded across multiple files. They can even be linked as separate RVT files and then convert

oups at a later time.

As with everything in Revit, there are some important exceptions that you will want to note. N

ery time a problem crops up with groups, its the result of ignoring one of the following

actices:

Dont put datum objects in your group.Avoid putting datum objects (levels and grids) insid

your group. First, you cant manage the extents of the datum objects unless youre in Edit Groumode, which can create conflicts elsewhere in your project. Of course, you will have the optio

to notinclude the datum objects when you bind your link. Again, doing so doesnt necessarily

create a technical hurdle, but it can create a lot of confusion. Weve seen situations where

duplicate levels are deleted only to find out that those levels were hosting content in the proje

Dont nest groups.In other words, avoid creating groups within other groups. Although nestin

can save time in some situations when the design is preliminary and your team is trying to

distribute content and design ideas quickly, youll likely find a point of diminishing returns as

design evolves. You cant get to all the features and functionality of Revit when youre in Edit

Group mode And if youre nested deep into groups and trying to modify project properties yo

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