Regardless what you think about Revit, you’ll
probably agree that Revit is disruptive technology. You can push rope and try
to adapt CAD functionality to Revit or you can adapt/change your workflow to
accommodate Revit’s workflow. This process change, good or bad is disruptive. The
choices you make can mean the difference between profit and lose on a project.
One area that Revit provides that opportunity
for process change is with Redlines. With Revit and Design Review we have an
opportunity to create and manage redlines differently than what has been done
in the past. This does not mean that the
Revit/Design Review process is better or worse, it’s just different.
Pen & Paper / Redlined PDF
Traditionally redlines have been created using
red pen on paper and that gets passed off to someone to get picked up. Those
redlines can be scanned and a PDF created or electronic documents can be marked
up electronically and passed onto someone to get picked up. As the person picks
up the redlines they may or may not highlight which items have been picked up. At
some point, we hope that someone then back checks to make sure that the
redlines were picked up and addressed correctly.
There are many pros and cons to this
workflow. On the Pro side, it is a workflow that is familiar to most users and
good or bad, familiarity makes people more comfortable. The Cons to this
workflow is that the redline is not integrated into Revit like an overlay, it’s
external.
Revit / Design Review
An Alternate workflow to creating and
managing redlines is to utilize the Deisgn Web Format (DWF) as a distribution
and communication of redlines. DWF files are in many like PDF files, but you
use the Design Review application to markup the documents electronically and
those redlines/markups can then be linked back into Revit as an overlay. As the
markups are addressed, comments can be added.
Before I go into the process, let’s talk
about the CONS to this approach. The BIG CON is that DWF markups have to be
created digitally using Design Review. It’s been my experience that the
drawback is with people learning to digitally markup drawings rather than using
pen on paper. In fact, I’m guilty of it. If I have a choice, pen on paper is my
preferred method as marking up with the mouse sucks. There is an improvement
though when working with a tablet, especially one of the higher end models like
the Wacom Cintiq pen displays.
Workflow
The first thing we need to have to create
markups in Design Review with DWF files is Sheets in our Revit model. Revit
allows you to export sheets and views to either a DWF or DWFx file type. Now is
probably as good a time as any to explain the difference between a DWF and DWFx
file. DWFx allows you to export the 3D model and any associate parameter data
associated with the objects. DWF/DWFx can be used to export sheets and views to
a file.
If you want to use the DWF file to roundtrip
redlines (Revit to Design Review to Revit) then you have to export sheet. When
we have sheets, we can then export DWF file. From the Revit application button
(Big R) select Export > DWF/DWFx.
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| Figure 1 |
The DWF Export Settings dialog (Figure 2)
will open and this allows us to specify what sheets/views we want to export and
to adjust DWF/DWFx export settings. In the View/Sheets tab, select the
from the Export: dropdown. From the Show in
list: dropdown, select Sheets in the Model, this will allow you to select from
just the sheets in the model. Select all the sheets.
 |
| Figure 2 |
After you make your selection, you can save
your selection for future use by using the New Set button as shown in Figure 3.
Figure 3
Click the Next button to save your file and export
your sheets. The exported DWF file can then be opened in Design Review and your
markups added.
Design Review is very similar to Acrobat or
Bluebeam. There are tools to make it comments, redlines, measure, query, etc.
They are very straightforward and simple enough to use.
Figure 4
As you make your redlines, Design Review
keeps track of those markups. Figure 5 shows an example of some markups. Notice
the second column of symbols that I have highlighted in Figure 5. These show
the status of the markup. The outline of a checkmark means no action has
occurred to that markup in Revit. A green checkmark means the markup has been
marked as Done. The question mark means that markup has been marked with a
question.
Figure 5 - Markup Tracking in Design Review
This markup tracking system helps everyone
associated with the redlines keep track of what has been done, what needs to be
done and what items need further clarification.
Once you have marked up the DWF file in
Design Review, we can link it back into Revit. We Link in a DWF markup set like
we would a Revit or CAD file. From the Inset tab, link panel, click on the DWF
markup button (Figure 6). This will open the Import/Link DWF file dialog.
Navigate to the location of your DWF file and then select Open.
Figure 6 - DWF Markup button
The Link Markup Page to Revit Sheets dialog
(Figure 7) will then open. On the left side (DWF View) of the dialog will be a
listing of those sheets that have markups from Design Review. It will only list
the sheets that have markups, sheets with no markups are not listed. The right
side (Revit View) of the dialog will display the Revit sheet that corresponds
to the DWF view.
You want to make sure that you review this
dialog very carefully. If you have renumbered, added or deleted sheets since
the DWF file was created, it is possible that Revit could list the wrong Revit
View for a DWF View. I have not had this occur, but something to keep in mind.
Also be aware that if you select a sheet on
the DWF View side and then click OK to the Link Markup Page to Revit Sheets
dialog, Revit will only link that single selected DWF View.
If your view(s) correspond correctly, you can
click OK to start the DWF linking process.
Figure 7 - Link Markup Page to Revit Sheets dialog
Once your DWF file(s) have been linked into
Revit, we need to find which sheets have them. Revit currently doesn’t allow us
to generate a schedule to easily locate and track them, so we have to do a
little digging if you don’t want to open the Design Review file.
The easiest method to find your markups is to
open Manage Links (Insert tab, Link Panel) as shown in Figure 8 and make the
DWF Markups tab active.
Figure 8 - Linked DWF files
Select anyone of the linked files. Then at the bottom of the
dialog, click on the Located In… button. This will open the Link Markup Page to
Revit Sheet dialog (Figure 7) and you can use that to make note of what Revit
sheets have markups. In this example, the project file I am using only have 5
sheets so tracking done the markups is not that difficult. However on a real
projects, you definitely do not want to go sheet-by-sheet looking for redlines.
We can now navigate to one of our markups in Revit. Figure 9
shows an example of a markup. When you select a markup the Properties palette
will provide you with some basic information about the markup as well as giving
you the options to change the status of the markup. In the example shown in
Figure 9, I clicked on the History button in the Properties palette and is
gives me basic information about the history of that particular redline.
Figure 9 - DWF markup in Revit
If I click on the Notes button in the Properties palette,
the Edit Text dialog will open (Figure 10). This allows you to add notes,
comments or questions that you might have regarding a particular markup. Figure
11 shows how that Note appears in Design Review.
Figure 10 - Associating a Note with a
Markup
Figure 11 – Note from Revit
When you save your Revit project file, any changes to the
status of the DWF is automatically saved to the DWF file.
The great thing about using DWF files for processing markups
is that they are easily tracked and they markups are an overlay to the Revit
sheets. If you can get over the hump of marking up digitally, then using DWF
files can make your life easier.
