DrawingSeed vs DesignSeed - whats the difference?

All,

apologies if this is a massively noob question...

Whats the difference between the DrawingSeed and DesignSeed - other than one being 3D with a black background and the other being 2D with a grey background. They both seem to have a single modelspace with the same file settings.

Where im going with this is... is there a downside to pointing the DrawingSeed variable to look at the same model as the model design seed?

Secondly...

When using the Geographic Coordinate System (GCS), is there a way to ensure the same GCS is applied to the target model? I.e - I have a Design Model that I want to create extractions / dynamic views from... When I do this, it is going to use an external model as the seed for the new file, however, that seed file doesn't necessarily have the appropriate GCS attached (we have many sites, so multiple GCS modifiers, so not as simple as having just one possible seed).

So if I am creating a 3D model, with GCS-Zone4 (for example), I want the recipient extraction/DV model to have that same GCS applied automatically. Is there a way to do this, or every time I create a drawing model / extraction do I have to go into the output and manually apply the correct GCS?

Thanks in advance!

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  • Not familiar with Open Roads that much but it sound like old Bentley Architecture where the 2d generated a 3d

    This product is different as the 2d VIEW of a model is not a SEPARATE 2d File.

    The 3d is the full model and within it you create a VIEW that is at a location - a section - of your model to create an true section, a detail by limiting the view or an elevation by creating a section that does not cut thru the model but in front of the model.  Thus you can also create Sections with Elevations.

    The 2d file is where apply your annotations to a referenced view from your 3d.  You DO NOT work or the model you just annotate and Dimension  the view and then you have created the 2d file you reference onto your sheets.

    This is much simpler that the old way and quicker as you don't constantly go back and forth between the 2d and 3d recreating and re-seeing your stuff.

    So create your model and work in in creating Sections/Details/Elevations thru the utility.  But you will noticed after saved they are now "Saved Views" and really nothing more.  You create these without leaving the model.

    Now you can actually do all annotations in the 3d but that gets real trying when you have 30 Sections, 20 Details, 16 Elevations, 6 Plans, etc.  All that crap stacks on top of each orther or requires a really large level system.

    Keep this simple and your work will increase.

    3d is the Model - With Views to create your sections (Elevations-Section, Plan-Section, Detail-Section, but technically they are all sections)

    2d are 2d files that reference a section from your model - you annotate this

    A sheet is a 2d file that references the 2d files you created and annotated

    The files on your harddrive are easily understood with names like

    1. Models - Dividing in to smaller models - to speed production - allow multiple cad operators on a full model, making easier to work on complicated areas in the model
      1. Exterior Walls - need to control look of elevations.  Separate floors cause a line to appear in the elevation even though the materials are the same.  This fixes this flaw.
      2. Interior Walls - One dgn file for each floor
      3. Slabs - Separate for control where things cut thru and to keep them visible but out of the way when working on other models
      4. Furniture
      5. Ceiling
      6. Stairs
      7. Others as needed
    • 2d Files Made viewing a Model View
      • Floor Plans
      • Exterior Elevations
      • Interior Elevations (very slow and painful and a slow process to tie into Model.  Old 2d way is quicker.
      • Building Sections
      • Wall Sections
      • Ceiling Plans
      • Roof Plans
      • Isometric Views
    • 2d files - plain old fashioned 2d file  
      • Details
      • etc.
    • Sheets - 2d files viewing the 2d files above - NEVER NEVER NEVER reference a 3d file onto a sheet.  There are issues you will get lost in and problems that are fixed by viewing the model you want that is already in another 2d file.  PLEASE PLEASE do this or you will be on this site asking questions that will not be able to be fixed as they just don't understand that THERE IS A VERY SPECIFIC WORKFLOW THAT YOU DO HAVE TO FOLLOW TO BE SUCCESSFUL.

    SIMPLY PUT

    3d files are model

    2d files are to view and annotate a model

    2d files are for details

    Sheets are 2d files that reference ONLY 2d files

    Ustn since 1988
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    Eric D. Milberger
    Architect + Master Planner + BIM

    Senior  Master Planner NASA - Marshall Space Flight Center

    The Milberger Architectural Group, llc