Page 1 of 3 123 LastLast
Results 1 to 10 of 21

Thread: Survey and Base point

  1. #1
    Junior Member
    Join Date
    December 4, 2018
    Posts
    19
    Current Local Time
    09:57 PM

    Not allowed! Not allowed!

    Survey and Base point

    Hi all,
    Can someone explain to me in real project terms how these 2 points should be used?
    From my understanding, which could be wrong, is that;
    Base point is a shared point of a building that is used as a reference? Is this also used in elevation to set the height of the model to a real world height?
    Survey point is a real world coordinate used when sharing models for coordination?

    Does anyone have any links that may be useful in understanding these.
    Sorry for the vagueness but for some reason I cant get my head around these.
    Thanks

  2. #2
    Member
    Join Date
    November 18, 2016
    Posts
    169
    Current Local Time
    10:57 PM

    Not allowed! Not allowed!
    that's pretty much it. i found this site informative about it all

    https://revitpure.com/blog/13-tips-t...rdinate-system

  3. #3
    New Member
    Join Date
    October 16, 2015
    Posts
    2
    Current Local Time
    09:57 PM

    Not allowed! Not allowed!

  4. #4
    Junior Member
    Join Date
    December 4, 2018
    Posts
    19
    Current Local Time
    09:57 PM

    Not allowed! Not allowed!
    Thanks both, very helpful

  5. #5
    Junior Member
    Join Date
    September 25, 2014
    Posts
    15
    Current Local Time
    04:57 PM

    Not allowed! Not allowed!
    Quote Originally Posted by robp View Post
    that's pretty much it. i found this site informative about it all

    https://revitpure.com/blog/13-tips-t...rdinate-system

    What do you think about this part? I generally like that post/pamphlet but I don't understand the point of the offset.


    5- SET LEVELS RELATIVE TO PROJECT BASE POINT
    In most projects, it is a smart move to set the project first level at 100'-0'' or 10,000mm. This is an arbitrary value that has no relation to the sea level. The best practice is to set this value in relation to the Project Base Point. Select a level, click on Edit Type and make sure that the Elevation Base is set to Project Base Point.

    These four posts from Steve Stafford are comprehensive and a great resource:
    2015 Survey Point - Post 4 - Acquiring Coordinates and View Orientation
    2015 Survey Point - Post 3 - Five Minutes with Shared Coordinates
    2015 Survey Point - Post 2
    2015 Survey Point 1
    Last edited by user_josh; May 13th, 2019 at 08:12 PM.

  6. #6
    Moderator DaveP's Avatar
    Join Date
    January 10, 2011
    Location
    St Paul, MN
    Posts
    3,293
    Current Local Time
    04:57 PM

    Not allowed! Not allowed!
    We set our First Level to 100'-0" because we have levels below that. Foundation, Basement, Parking.
    We don't want anything below grade to have a negative number.

  7. #7
    Forum Addict GMcDowellJr's Avatar
    Join Date
    December 21, 2010
    Location
    Phoenix, AZ
    Posts
    2,800
    Current Local Time
    02:57 PM

    Not allowed! Not allowed!
    I worked with a young architect once who lost their mind when I did this in a project... theyd never seen it before and assumed it was wrong. :shrug:

  8. #8
    R.I.P. MPwuzhere's Avatar
    Join Date
    December 14, 2010
    Location
    Las Vegas, NV
    Posts
    4,864
    Current Local Time
    01:57 PM

    Not allowed! Not allowed!
    While my template has Level 1 at 0'...this can be changed accordingly if using actual heights. I also keep a Site Level at 0' which should never be changed and which the topography is created from. Of course then users need to change Level 1's height. I had some users that did not like the Site Model and Project Model process.

  9. #9
    Administrator Twiceroadsfool's Avatar
    Join Date
    December 7, 2010
    Location
    Dallas, TX
    Posts
    11,020
    Current Local Time
    04:57 PM

    Not allowed! Not allowed!
    Quote Originally Posted by GMcDowellJr View Post
    I worked with a young architect once who lost their mind when I did this in a project... they’d never seen it before and assumed it was wrong. :shrug:
    I wouldn't lose my mind over it, but its an opinion matter: If someone asked me, i would tell them "i thought it was wrong," too. Ive heard all the reasons for it, and i hate them all, and find them to be nonsensical. L1 is 0-0 for me.

  10. #10
    Forum Addict GMcDowellJr's Avatar
    Join Date
    December 21, 2010
    Location
    Phoenix, AZ
    Posts
    2,800
    Current Local Time
    02:57 PM

    Not allowed! Not allowed!
    Frankly, if it was my company, I'd use the survey elevations with dimensions between them in section in case you were bad at math.

Similar Threads

  1. Elevation to Survey Point or Project Base Point?
    By robp in forum Architecture and General Revit Questions
    Replies: 0
    Last Post: January 7th, 2019, 02:59 PM
  2. Adjust project base point vs survey point in elevation
    By iru69 in forum Architecture and General Revit Questions
    Replies: 10
    Last Post: March 13th, 2018, 04:56 PM
  3. Project Base Point and Survey Point are both 0.00 elevation, but different heights
    By PatrickGSR94 in forum Architecture and General Revit Questions
    Replies: 2
    Last Post: March 5th, 2018, 02:13 PM
  4. Survey Point in Gau Krger coordinate system - project base point (0,0,0)
    By LisaTUWien in forum Structure - General Questions
    Replies: 1
    Last Post: December 18th, 2017, 03:04 PM
  5. Project Base Point | Survey Point | Absolute Elevation Issue
    By siqbal16 in forum Structure - General Questions
    Replies: 1
    Last Post: March 29th, 2016, 10:16 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •