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Thread: Moving from Massing to Building

  1. #1
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    Moving from Massing to Building

    Hello can anyone help me out here.
    I had a massing study and I created mass floors by selecting the mass and then selecting mass floors checking all the boxes.
    I now want to move from massing to building.
    Howwever, the floors seem to have no thickness. I tried to give them a specific material characteristic i.e. 300mm concrete generic floor. However, this did not work.
    How exactly do you carry out the transformation from massing to building?
    This is a rvt file so I can’t really treat it like a family file and insert it into a family file.

  2. #2
    Mr. Revit OpEd
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    You can create Floors based on the Mass Floors, using Floors by Face. The transition from conceptual to building model is not assumed that they start at massing and continue seamlessly. Much more likely the massing is an oversimplification of the design and the building model itself can't be faithful to the massing form. You didn't provide any images of the form so it's hard to suggest anything specific. If the form varies from floor to floor then some of the massing can help define the floor plate perimeter at each level while another massing form can provide a host surface for the skin of the building. Every design presents different issues.

  3. #3
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    OK but conceptual modelling can be more difficult than that.
    I Imported a file from Sketchup. Got fedup with sticky geometry and all that stuff.
    Also thought that detailed design and subsequent extraction of 2d drawings would be easier to achieve in Revit.
    So I thought the best way to proceed would be import into revit by the following method.

    I saw on a Youtube video that the best way to proceed was this:
    Insert an in-place mass. Use the link cad function to link the Sketchup file. Tick to finish the sketch.
    Theoretically I should be able to do the following:
    I should be able to create mass floors . However, when I do this I never seem to get the floors.
    I can turn off the original object using VG. The floors should be still there but they are not. Hence I cannot create floors by face.
    Please look at images of house project I am working on.

    Any idea what I am doing wrong? Creating walls and roof by face from an original conceptual model is easy. With floors it just doesn’t seem to work at all.
    Thanks
    Attached Thumbnails Attached Thumbnails Moving from Massing to Building-house-19-12-18.jpg   Moving from Massing to Building-house-19-12-18a.jpg  

  4. #4
    Mr. Revit OpEd
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    At first glance, your project is not big enough or enough floors to bother with this process. Just build the model. If you were doing a tall building with many floors and the shape changed from floor to floor it might be worth it.

  5. #5
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    Most confusing is why it doesn’t seem to work at all.
    I can try tracing the original sketchup floor. For some reason snaps never work very well in Revit.
    Is this because dimensions are set to a sort of module? Is there a way of turning this off?
    Is there a way of clicking on any module and getting its complete Cartesian coordinates. An xyz reading would be surely essential when you are trying to create very accurate models.
    My feeling is I am going to have to create dozens of sections to accurately look at every part of the building I need to look at.
    In order to prevent a very cluttered drawing I would need some way to turn the section lines on plan on and off.
    I can go to visibility graphics , annotation categories. I have created 2 sections. I would have thought they would read as separate entities but the only option under VG is sections i.e. all on or off. Surely in a big complicated model a better approach must be possible i.e. each section could be turned on or off.

  6. #6
    Mr. Revit OpEd
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    It sounds like you're approaching Revit as if it just works like other software you're familiar with. That's never true, no matter the software. If you've had no training in Revit yet then you're walking into an unfamiliar house with a blindfold on.

    You've finished your massing study...move forward. Draw walls, floors roof, windows doors etc....

    Snapping is defined by Snap Settings. They are based on specific snapping options and the temporary dimensions that appear are governed by preset increments and your zoom factor in the view, how close or far you are from the element. For example if you are zoomed quite far out Revit will show larger increments than when you are zoomed quite close.

    Snapping to external data inserted is not equivalent to snapping to Revit's own elements. Those are real to Revit while external elements generated by some other software are symbolic representations of them. Some of those might have equivalent elements in Revit, like a line but others don't. When an extrusion in Sketchup is viewed in Revit it is surfaces to Revit, not a floor or wall.

    Revit is designed to do much of the work in plan views, while keeping vertical height in mind. For example, drawing walls in plan but thinking about how tall they are going to need to be. All of the traditional views a set of drawings requires can be created in Revit. Since your building has several floor elevations (based on your images) you'll need sections to understand how to transition from one floor to another.
    Last edited by Steve_Stafford; December 21st, 2018 at 04:48 PM. Reason: spelting ers

  7. #7
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    OK but say I need 30 sections and elevations to cover all level changes and internal elevations.How do I set this up so plan is is not over burdened with information?


    The problem I explained above with visibility graphics still applies.

  8. #8
    Mr. Revit OpEd
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    How much experience do you have making architectural drawings? I ask because you've shown a small house in your images. A floor plan for this kind of project would not require many sections. The plan view would probably use a scale like 1/4"=1'-0". Ordinarily a Building Section would use the same scale and at least one for each axis of the building would be used. Their purpose is to describe vertical relationships and how different parts of the design interact with each other.

    A Wall Section (usually at higher resolution/scale like 1/2" - 3/4"=1'-0") is used to describe how the entire structure relates to each other but at a specific location (which could also be quite typical for the overall design). A Detail Section (scale like 1"- 3"=1'-0") is used to zoom in on specific locations of a Wall Section to further describe the design, for example how the foundation wall rests on a footing or how the top plate and roof joists/truss relate to each other.

    Revit views (elevations/sections) have a "Hide at Scales Coarser Than" parameter that governs when a view should not show its annotation in other views. This way a Detail Section can be configured not to show up at any view coarser than 1/2"=1'-0", prevent them from being seen in a 1/4" floor plan.

    Revit was designed by architecture professionals that have been there and done that, and continues to do so. Most of the time if there is some task that architecture requires there is an intentional solution to it.
    Mengelmn likes this.

  9. #9
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    Hello I need some help please on changing levels without elements move.
    I need to move levels on an existing drawing. Only trouble is elements such as walls then begin to move.
    Of course, these walls must be hosted on that level. I could, when moving the level tick disjoin.
    However, maybe that it not such a good idea.
    I can move level and then move elements into correct place.
    However I I try this I get error message Cant make extrusion.
    The new position of levels and elements will be accepted if I accept the command delete elements?
    What exactly have I deleted? What is the best way to approach this?

  10. #10
    Mr. Revit OpEd
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    Walls and many other elements have a host level which you can change. For walls specifically you can change the base constraint and base offset to define where the wall starts to grow up.

    When Revit needs to delete something because you've changed their host in a way it can't keep it you'll get a warning message. There is usually a button you can click to expand the warning which will give you the element ID of the affected elements. You can use that/those ID to find them afterward, if they are not visible in the view you're in already.Look at the Manage ribbon tab > Inquiry Panel > Select by ID and/or ID of Selected Elements. There are times that you can't select an element this way because the element is inside or part of another element, such as an extrusion inside an in-place family (massing) or a floor sketch segment inside a floor element.

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