Revit Coordinate System and project site setup

[Anonymous]

Hello Everyone...

i think the subject speaks for itself and I think that many will come across this question and move on either because they are as confused as everyone else when it comes to this topic or because they know something about it but hey are in doubt (not 100% sure)

I have read ALL of Revit help on survey point, project base point and shared coordinates. I have read about the subject on more than 5 blogs some with several trials and attempts on the same topic back from 2012 till today. 

I have eave also read several posts on this forum which surprisingly although it is AUTODESK Revit forum yet this topic is the least discussed here and mostly no conclusion or a clear solution which applies to all is found.

i have watched on YouTube more than 20 tutorial videos...and all of them either say

1. don't do this and do only that
2. or... Forget about this feature because it has a bug and do this instead
3. or... Move and rotate and relocate points and model without clear clarification why is this point moved clipped and why that is moved not clipped. And funnily enough not two single videos do the same. One tells you rotate the model with base clipped and the other not clipped and in the comments they argue if survey point should have been un clipped first or not

Not to mention those with 100 theories on the 20 miles and some say 12 and others 15 and one claims he has been testing and he depicts the findings of another blogger and says it is more like 17 miles!! Why 17 and why 12 or why 20?! It can't be trial and error there has to be a math behind all that or is it not the case?

So here it is what I think:

1. it cannot be possible that there is so much contradiction and confusion on ONE topic which used to work so fine and easy in Autocad
2. it cannot be that there is no clear guideline or a demo which clarifies the whole process or different process/cases
3. it cannot be that no one really gets the differences and similarities if any between clipping and not clipping and what measure should be taken to troubleshoot the project if those points got knocked out by mistake! 
4. It cannot be that with a software as big as Revit someone jumps and says you have to do this in AutoCAD C3D then bring to Revit because Revit cannot do
5. it cannot be that there is someone who still says today that the elevation topopoints for the toposurface which are placed in Revit are not relevant to the survey point! I read this in a reply to a post here yesterday! I am not sure how AUTODESK admins monitoring this forum read all those contradicting replies and leave them to confuse others! I don't think users are seeking an answer which says use this tool but more of an answer which clarifies why and what this tool does

My question:

with all due respect to all bloggers and youtubers who has 10 times more experience than me; it is not personal...my aim is to understand which is right so please if anyone here knows how this works in Revit and how it is really used on a real project please explain

Sorry about the long narrative above, I am not complaining, I have only reached a dead end after checking wi several classmates and colleagues who turned out not far off than I am. 

I know now most of you experts have work and enough of everything else but I believe many of us out here would be so thankful to whoever can contribute to this post, on his/her free time or over the weekend.

thanks

[Anonymous]

Thanks