Project Base Point issue in coord

[Anonymous]

Hi community,

I want to get better in placing models on shared coordinates, did some research and prepared a internal document.

Now I started from 0 with information's that I have from a previous project and I want to use the workflow that Autodesk provides:

1. Specify the geographical location to indicate its actual location using global coordinates. 
2. Define the Survey Point to match a known point in the physical world. 
3. Rotate True North to define the Y axis of the topography point.
4. Define the Project Base Point to establish a reference for measuring distances and positioning objects in the context of the model.   

Everything goes well until moving the Project Base Point to the new location. When I move it, the message appears:

Basically, I can't move the Project Base Point to the new location.

For the location I loaded a Point Cloud by shared Coordinates then unclip and write the coordinates to the Survey Point, I clipped it back after it moved to the desired location and give the Project Base Point the rotation to True North.

I think I'm doing something wrong but I can't figure out what.

Can you help me?

Thanks.

PS: I'm using Revit2020.2

[Alfredo_Medina]

It´s not necessary to move the Project Base Point. You are receiving that message because you are trying to move it more than the allowed distance. Leave it where it is. Its default location coincides with the internal origin of the model. What is the reason for moving it?

[ToanDN]

There is no good reason to move project base point.

If you are working in a single model then move then use Relocate Project tool under Manage > Location menu.

If you are working with links, then the first 3 steps should be done in the location governing Site model, link the site model to building model(s), move it to the correct location, then Acquire Coordinates.

[barthbradley · Accepted solution]

Informative read attached...

[Anonymous]

I create sheets with top, side and 3D views from the model also export to Navisworks and AutoCAD.

Many times I check  my work in the 3D view and when Survey and Project Base points are not in the same area it's frustrating zooming and finding the model.  I use a long line from one corner of the site to find in more easily.

[Anonymous]

I use a federated model where I link AutoCAD's, point clouds, my own 3 to 5 links and usually one or two architecture links. Wouldn't be easier if I publish coordinates after the links are in the right place?

When I zoom to fit, instead of the hole image of the project I have a white scree where I have to zoom to my federated site.

[distroeZUZ6L]

Hello Bogdan,

Have u tried to clip/unclip the Project Base Point?

Depends on the Revit variant PBP clip is available or not, in 2021 seems no longer is.

[Anonymous]

In Revit2019, I can unclip - write the coordinates and rotation and clip it after it moved.

In Revit2020 it's always unclipped and I can't move it more that 10 miles away from internal origin.

Maybe a more appropriate question would be:

How do I tell Revit that I need to model more than 20 miles away from it's origin without using a localized AutoCAD file?

[Alfredo_Medina]

Leave the project base point at its default location. It will report the coordinates of a certain point, if you are using shared coordinates. The survey point will report 0,0. Therefore, the two points are far away from each other. That is fine. Just leave them like that. No need to move the project base point.