Move project to origin point
It seems to me that the issue at hand is our understanding of the Survey Point and Project Base Point Graphic symbol and the notion of points. I've written it several times but it doesn't seem to be understood.
The SP and PBP are not Points in and of themselves, they mark a location. They either mark the origin of their corresponding coordinate systems or they identify alternate spot coordinates relative to their own systems.
I wrote earlier: "Imagine a sheet of graph paper, sketch a PBP symbol at a grid intersection. if you could grab the PBP symbol, while the PBP is clipped, moving it also moves the graph paper with it. In contrast, moving it unclipped changes where PBP symbol rests on the graph papear, the graph paper doesn't move."
This is incredibly important. As soon as you unclip either SP or PBP you change its nature. It no longer is anchored to the origin/location it identifies. It become "loose", free to travel on the coordinate system to mark any location...without moving the coordinate system too.
Like you described in your earlier steps, what happens with your described process is you shift the PBP and the coordinate system over. Then you sever its anchor relationship to the coordinate system when you unclip it to move it again.
It is easy to think of the SP and PBP as points. They do identify points in space, but they aren't moving those points when they are unclipped. Unclipping and then clipping again does not change anything other than tell Revit you want the symbol to be anchored to the coordinate system again. If you move it clipped now it will change the PBP and its coordinate system together.
Steve Stafford
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@ToanDN wrote:
That was a professional inquiry for you to prove everyone wrong by moving the Origin to the building in his Revit file. How is that sarcastic?
@ToanDN: Post a Screencast of how that could be done. I have no idea. I never suggested it.
BTW: Are you being sarcastic when you ask "How is that sarcastic?"
Your step #5 - The entire Project Coordinate system appears to be shifted over to 50,50 but it hasn't really moved. The survey point and the shared coordinate system has just been left behind at its original location. Remember both coordinate systems are separate, not physically connected at all.
Your step #7 - The Shared Coordinate system is not changed by -50,-50 because the Survey Point was moved unclipped. It's loses its anchor to the coordinate plane in that state. It just move to mark the coordinate location -50,-50.
Your step #15 - This isn't as significant as you regard it. The Project Coordinate system "origin" is still at the so called "50,50" spot, but it's really 0,0. It appears to be 50,50 because the Shared Coordinate system origin is where it started out to begin with. The Project Base Point has this unfortunate behavior of reporting its distance from the Shared Coordinate origin. At this stage in your exercise all that's been accomplished is that the shared coordinate system is offset by 50,50 from the Project Coordinate system origin. It hasn't really moved at all.
I keep harping on the distinct difference between the Survey Point and Project Base Point and their related coordinate systems because no matter how I write about it you keep failing to see the distinction between your clipped and unclipped actions. At least that's how it appears to me. Your steps haven't changed but you're seeing something that isn't happening.
Steve Stafford
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@Ilic.Andrej The portion of the thread I've been addressing with @barthbradley deals with the subtle relationships of the Survey Point and Project Base Point and their corresponding coordinate systems.
Mostly it is off topic for @Anonymous's issue, except that his company's template was altered in such a way that some of their existing projects are very far from Revit's project origin. They are experiencing the negative symptoms that accompany that situation. He is faced with moving the model closer to the project origin to alleviate it.
It isn't that they didn't follow the recommendations in the help documentation. It's that someone moved the symbols very far from the origin while unclipped which led people to create their models at their location, unaware that they've been shifted far from their home, so to speak.
Steve Stafford
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