Click the Application button, and select Export ➢ CAD Formats ➢ DWG Files, as shown in Figure 20.25.. Managing project phasing Creating an existing phasing plan Demolishing component
Trang 1C h a p t e r 2 0 • I m p o r t i n g a n d C o o r d i n a t i n g R e v i t M o d e l s
8 6 4
F i g u R e 2 0 2 3 Publishing the coordinates
3 In the Site tab of the Location Weather and Site dialog, click the
Duplicate button
4 Call the new location Revit Position, then click OK.
5 Click Make Current.
6 Click OK.
7 Press Esc, then select the AutoCAD link.
8 In the Properties dialog, verify that the Shared Site is now Revit
Position
9 Save the Revit model.
10 Once you save the Revit model, you will be prompted to save the new
coordinates in the DWG Click the Save button, as shown in Figure 20.24
So, that’s importing Suppose we need to send our model to our clients and con-sultants who don’t have Revit? This can be taken care of quickly and deliberately
exporting a Model to cAd
For some of you, this may be a nice-to-know subject For most of you, this is a need-to-know subject Taking the plunge into Revit means that you may be tak-ing that plunge alone Just because you are ustak-ing Revit, that does not mean you don’t need the ability to give someone CAD drawings based on your models This section will focus on the process of exporting your Revit model to both 2D and 3D CAD
Trang 2I m p o r t i n g a n d e x p o r t i n g C a D F o r m a t s 8 6 5
F i g u R e 2 0 2 4 Saving the coordinates to the AutoCAD file
exporting a 2d Model
Most of the time, your deliverable to your clients will be a 2D model Also, if your
consultants aren’t on Revit, that also usually means that they are not using 3D
CAD either This format is the lowest common denominator Not that a 2D model
is bad—it just means we need to export our model in a way that the client can
just pick it up and run with it
The objective of the next procedure is to export our model to a 2D AutoCAD
drawing file
1 In the Project Browser, open the Level 1 floor plan.
2 Click the Application button, and select Export ➢ CAD Formats ➢
DWG Files, as shown in Figure 20.25
3 On the View/Sheet Set panel, select In Session View/Sheet Set from
the Export drop-down list
4 For the Show In List option, select All Views And Sheets In The Model.
5 Scroll down to the bottom of the list and make sure your Level 1 floor
plan is checked on (see Figure 20.26) You may check on any others
as you please
6 Click the DWG Properties tab.
7 At the bottom, click Export Rooms And Areas As Polylines.
8 Click the Next button.
9 Browse to the directory of your choosing then click OK.
Trang 3C h a p t e r 2 0 • I m p o r t i n g a n d C o o r d i n a t i n g R e v i t M o d e l s
8 6 6
F i g u R e 2 0 2 5 Exporting the model to CAD
F i g u R e 2 0 2 6 Choosing the items to export
Trang 4A r e Yo u E x p e r i e n c e d ? 8 6 7
Now that we can export to a flat 2D file, it is time to take our model and export
it as a full 3D entity The process is similar to exporting as 2D
exporting the Model to 3d cAd
It is such a shame to “dumb down” our 3D model to flat 2D CAD It feels as though
we are taking a step backward each time we do it When you find yourself in the
situation where your consultants are using CAD but are using the 3D modeling,
you can give them the gift of 3D
The objective of the next procedure is to export a model to 3D CAD
1 Go to the Default 3D view.
2 Select Export ➢ CAD Formats ➢ DWG Files
3 Set the Export option to Current View/Sheet Only.
4 Click the Next button.
5 Find a place to save the 3D model, then click OK.
6 Save the model.
As you can see, it’s not a difficult process In Chapter 23, “BIM Management,”
we will explore setting up the export in such a way that the layers are correct if
your client is not standardized on the AIA format
Are You experienced?
Now You can…
import a revit Structure model
E
E
copy and monitor the revit model
E
E
run interference checking on a linked revit model
E
E
export a revit model to CaD formats (2D and 3D)
E
E
O
the most important step in exporting to
a 3D CaD format is
to be in a 3D view.
Trang 6chAPteR 21
Phasing and
design options
Of all the projects I have been involved with over the years, I can only remember a handful that didn’t involve some kind of existing condition It would be nice if we could find a giant, flat field to construct our buildings, but those projects are few and far between
Managing project phasing
Creating an existing phasing plan
Demolishing components
examining phase filters
Creating design options
Trang 7
C h a p t e r 2 1 • P h a s i n g a n d D e s i g n O p t i o n s
8 7 0
Managing Project Phasing
The term phasing in Revit is often taken quite literally, and can often become confused as construction sequencing When we talk about phasing in the con-text of how Revit views it, we are talking about adding new construction to an existing building, and the demolition of the existing structure Although you can use Revit to track all aspects of construction, the base use and the purpose
of phasing is for existing conditions
The first section of this chapter will focus on the setup of your actual phasing scheme By default, Revit Architecture provides two phases: Existing and New Construction As it stands, everything we have placed into our model for the last
20 chapters has been exclusively on the New Construction phase We will now alter that
I have seen this scenario played out more times than I would like People get Revit, build a model, and then start clicking the Demolish button found on the Phasing panel on the Modify tab, as shown in Figure 21.1 Yes, it forces hidden lines, now you are demolishing walls that were constructed in the same phase
as they are being removed You can’t just do that!
With some practice, and by following the procedures in this chapter, you will
be able to swing that hammer around all you want But for now, to get started
go to the book’s web page at www.sybex.com/go/revit2011ner From there you
can browse to Chapter 21 and find the file called NER-Phasing.rvt (If you pre-fer, you can follow along with your own model as well.)
The objective of the following procedure is to create a demo phase and insert
that phase between the Existing phase and the New Construction phase
1 Open the file called NER-Phasing.rvt you downloaded
2 On the Manage tab, click the Phases button on the Phasing panel, as
shown in Figure 21.1
3 In the Phasing dialog, click on the number 1 This is the control for
the Existing phase row
4 To the right of the dialog is the Insert section Click the After button.
F i g u R e 2 1 1 Clicking the Phases button
Trang 8M a n a g i n g P r o j e c t P h a s i n g 8 7 1
5 Rename the phase that is now in the middle to Demolition, as shown
in Figure 21.2
6 Click OK.
7 Make sure you are in Level 1; then on the View tab, click Duplicate
View ➢ Duplicate View, as shown in Figure 21.3
8 Right-click the new view and rename it to Level 1 Existing.
9 Open the Level 1 Existing plan.
For now, that is all we need to do to start setting up the plans We will create
a demo plan as well, but not until we start getting some items moved over to the
Existing phase
F i g u R e 2 1 2 Adding the Demolition phase
F i g u R e 2 1 3 Duplicating the view
Trang 9C h a p t e r 2 1 • P h a s i n g a n d D e s i g n O p t i o n s
8 7 2
creating an existing Phasing Plan
Just because you just called it “existing” does not, by any means, qualify this plan
as an existing plan We have a good amount of work left to do before we can con-sider this existing
First we need to physically select each item and move what we want over to the Existing phase After we finish that task, we need to assign the Existing phase to this plan
The objective of the following procedure is to physically move components to the Existing phase:
1 Pick a window around the entire west wing as well as the corridor link,
as shown in Figure 21.4
2 On the Modify | Multi-Select tab, click the Filter button, as shown in
Figure 12.4
3 In the Filter dialog, click the Check None button, and then check Walls.
F i g u R e 2 1 4 Filtering your selection
Trang 10C r e a t i n g a n e x i s t i n g p h a s i n g p l a n 8 7 3
4 Click OK.
5 In the Properties dialog, scroll down to the bottom where you see
Phasing For Phase Created, select Existing (see Figure 21.5)
6 Pick the same window around the entire east wing.
7 Click the Filter button.
8 Select only Windows and click OK.
9 In the Properties dialog, change Phase Created to Existing.
Zoom in on the plan Notice the items that have been moved to Existing are gray
and have lost their detail level, as shown in Figure 21.6 Also notice that some of
the items are still on a heavy line weight These items need to be selected and then
moved to the Existing phase
F i g u R e 2 1 5 Setting Phase Created to Existing
Keep selecting items and moving them to the Existing phase Continue until you
have every item in the east wing and the corridor link This includes the floors and
foundations, too The only thing you want to keep is the winding stairs that
con-nect the link to the east wing You can select items in the 3D view as well
Okay, it’s time to create the existing plan The only thing that separates an
existing plan from a new construction plan is a single property