- [Instructor] In the last several videos,
we've been discussing how to link Revit files
together using a variety of workflows within BIM 360.
But there's still one important topic
that we want to discuss with respect to links
and projects in BIM 360 and that is shared coordinates.
So no doubt you use shared coordinates
when you set up multibuilding projects,
particularly when you have a campus
with lots of buildings on it.
So what I'd like to talk about in this
in the next few videos is how shared coordinates
interacts with BIM 360 environment.
So to get started, we're going to save a new model
and add it to one of our existing projects.
So I've got this really simple shed model open here.
If you're following along,
you can use whatever project files you happen
to have that are set up with links.
It's really not important
that you using the same files as me.
Okay, so the first thing I'm going to do
is turn on collaboration for this file.
So I'll go to the collaborate tab,
click the collaborate button.
And I will choose in BIM 360 and click OK.
And then I will browse to an account and a project file.
And I'm going to save this in the architecture folder.
Now I'm doing this with work sharing,
which might be a bit overkill
for a building this small and simple,
but you're welcome to use Save As Cloud Model
as well, it would work the same way.
So it's really up to you.
So when it's done, I'll click Close.
And now I'm ready to move on to the next step.
Now, if we were working in a local project environment,
then what I would recommend doing next
is to open up our site model
and set up the shared coordinates from there.
So I like to open up the site link in the buildings
and then do the shared coordinates.
But that workflow isn't going to work in BIM 360,
because BIM 360 only supports acquire.
So if you want your site model to control the coordinates,
then you need to start from the building,
bring in the site and acquire the coordinates from there.
So you just kind of reversing the order
that you're doing them in,
but the end result will be the same.
So, let's bring in our site model into this building file.
Now, I think it makes a certain amount of sense
to do this from the site plan view.
So here on Project Browser,
I will just double click site plan
to do that, I'll go to the Insert tab,
and link in a Revit file.
I'll go to my architecture folder,
and for this example, I'm going to link to my building site
and I'm going to do it by direct linking.
But if you want a challenge exercise,
I encourage you to try this
either using the package shared workflow,
or even the package consumed workflow.
All the shared coordinates stuff would work the same,
it would just be a difference in
how you're setting up your links.
Now, down here at the bottom, I'm going to choose,
By Shared Coordinates positioning because ultimately,
that's what I want but at the moment,
it really doesn't matter which one you choose,
because until we've set up the Shared Coordinates,
they don't yet exist.
And I'll show you how we'll find that out in just a moment.
So really, you could choose anything you want here,
I'll choose By Shared Coordinates, click Open.
Now I will get an alert that there are some nested links
in that file that are set up with overlays,
I can just dismiss that.
That doesn't concern me.
And this is the message I was alluding to.
So even though I chose shared coordinates,
Revit is telling me it's going to ignore that
because these two files don't share a coordinate system.
So it's going to use center to center anyway and that's fine.
I'll just click Close here.
Now all you're going to see with zoomed in
this closely is a little symbol appear here.
Now notice here in the middle of my file,
there's the round symbol, that's the project base point.
And if I click on that, it says zero zero.
And if I tab once I get to the triangular survey point,
and if I click that, it also says zero zero.
Now what we're seeing here is the project base point inside
of the site model.
And to see the entire site model,
you just need to zoom out a little bit
because it's way off-screen here.
Now there's the survey point in the site model.
So those two points are actually separated
in the site model.
So I want you to pay attention to those points
as we continue, because once the shared coordinates
are set up, we're going to see some shifts in that.
So what we need to do here, is a little counterintuitive.
We want to position the building on the site,
but you don't want to move your building file.
So what you going to do instead,
is move the site to the building.
So I'm going to start off by doing
that roughly by just sort of grabbing it
and dragging it kind of close by where I want it to go.
That'll allow me to zoom in and do a better job.
So I'll zoom in, and maybe I want the shed here
to just be behind these windmills a little bit.
So I'll move the site a little bit more fine-tuning it,
but then you can see that this little bump out here
is the entry and it's kind of pointing
the opposite direction from the parking lot.
So maybe I'd like that building to kind
of look at the parking lot.
So, I would be tempted To rotate the building, but again,
I don't want to change the building geometry,
I'm going to rotate the site to the proper orientation.
So I'll go to my Rotate command.
Now the center of rotation is off-screen somewhere,
you can click the place button here
or just simply tap your spacebar to move it,
then I will start rotating right
at the middle of the building.
And I'm going to kind of pick a start angle here
and then kind of swing it around
almost a full 180 degrees like so.
So now from the point of view of the building,
the parking lot is right outside the door,
and I'm just behind these windmills.
So that's pretty much what I was looking for.
But there's still one more thing we need to do.
If I click anywhere and deselect the site,
the building disappears.
And you can see why if you open up an elevation,
I'll open up the south elevation,
and we've buried our building.
So the site model is much higher than the building model.
So I'm just going to eyeball this one in this case,
but I'm going to pull it straight down, then zoom in,
and then just fine tune that so that this little slab here
is just partially buried.
So I'll close the south elevation,
switch back to the three D view.
And just kind of take a look.
And that looks pretty good.
Okay, zoom out just to kind of get a better look here.
And that's what I was going for.
Okay, so I'm going to go back
to the site plan now for the next step.
And I want you to watch these two symbols here.
Remember that circle and triangle
are superimposed right on top of each other.
So I want you to watch those as we do this next step.
So all I need to do now is select the site model again,
so you can click anywhere on the site model.
And if you look on the properties palette,
the shared site currently says not shared.
So I'll click that button
and here's where we finally see an indication
that acquire is the only workflow that's supported
because notice that publish is grayed out.
Now there is a link right here that says
how do I use an acquire workflow with shared coordinates.
So if I click that, that will open up the Help system.
And take me to an article that kind of talks
about how this workflow is all that supported for BIM 360.
And it's a rather lengthy article that you're welcome
to read through and I encourage you
to do that at some point.
But I'm going to just close out of there,
and I'll simply click reconcile here
to complete the process.
Now notice that when I did that the triangle symbol moved.
If I click the circle,
you could see the coordinates have changed
they no longer say zero, zero, zero.
And if I zoom out, over here somewhere,
you could see the little triangle
and what we've actually got is the triangle.
The survey point for the current project is now sitting
in exactly the same spot as the triangle,
the survey point in the link model.
So if I Put my mouse right in that general location,
I can actually select the survey point.
Notice that it says,"zero, zero."
So it moved it two zero zero.
And change the coordinates of the project point
to correspond to that
because now the project point is being measured
from that new zero zero location.
If I click anywhere to deselect,
the gray triangle is actually part of the link.
So notice that when I select the link,
it also highlights the gray triangle and again confirms that
that's where the zero zero is.
So we've now got our shared coordinates all set up.
So the final step is to just synchronize
to save these changes.
So I will do that.
You can optionally put in a comment.
Alright, so the final step is to show you that now
that we've saved the shared coordinates
for this shed building,
it will be usable in any of the other buildings
in this project.
So if we go back to our home screen here, or Control + D,
and click on the admin building model,
that'll load that model up.
And now we can simply go to the Insert tab, link Revit.
browse to our folder, select the file,
make sure it says by shared coordinates, and click Open.
Now we will see an alert, like we did the last time
about nested links, we can just ignore this by closing it.
And then notice that the building model comes in
in exactly the correct location.
So, once you've set up the shared coordinates,
all the buildings in the campus will know
about the relative positions of one another.
And it's just that easy
to get the building in the correct spot.
So the only real difference between a BIM 360 workflow
and a land-based workflow with respect to shared coordinates
is the exact steps did you use to configure it,
but once it's set up, they behave exactly the same way.