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    Autodesk Revit Architecture

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    Active Member
    Posts: 9
    Registered: ‎01-21-2013
    Accepted Solution

    Intersection problem between building pad and toposurface

    305 Views, 8 Replies
    01-21-2013 04:27 PM

    Hello! I couldn't find an answer to my problem; if there is one, I apologize in advance.

     

    The problem is this: I have a platform that represents the entrance to the terrain in which the house is located. This platform (created with a building pad) is adjacent to a ramp (built also with the building pad). However, an infinitely thin slice of terrain remains as both building pads intersect with the toposurface. Here is a screenshot:

     

    Intersection problem

     

    What can I do to prevent this? The two objects touch each other, and the revit programing prevents me from drawing one inside another (as you know)...

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    *Expert Elite*
    Alfredo_Medina
    Posts: 2,258
    Registered: ‎06-11-2009

    Re: Intersection problem between building pad and toposurface

    01-26-2013 07:43 AM in reply to: J.Matos

    I would suggest to edit the boundary of one of the pads using "pick lines" and using the edge of the adjacent pad as a reference. That should resultin two pads sharing the same edge but without any gap in between.

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    Active Member
    Posts: 9
    Registered: ‎01-21-2013

    Re: Intersection problem between building pad and toposurface

    01-26-2013 11:34 AM in reply to: Alfredo_Medina

    Hi! I tried to do that, but unfortunately the problem remains. Strangely, as you can see from the attached image, the problem only occurs when the union is convex, and not concave.

     

    Junction problems

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    *Expert Elite*
    Alfredo_Medina
    Posts: 2,258
    Registered: ‎06-11-2009

    Re: Intersection problem between building pad and toposurface

    01-26-2013 12:31 PM in reply to: J.Matos

    This can be done by other means, such as a subregion on the site, a floor with modified points, or a ramp.

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    Active Member
    Posts: 9
    Registered: ‎01-21-2013

    Re: Intersection problem between building pad and toposurface

    01-26-2013 12:36 PM in reply to: Alfredo_Medina

    If it's not too much trouble, could you elaborate about one (or more) of the options you mentioned? I'm still beginning to learn, and I'm not sure how to proceed from here.

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    *Expert Elite*
    Alfredo_Medina
    Posts: 2,258
    Registered: ‎06-11-2009

    Re: Intersection problem between building pad and toposurface

    01-26-2013 03:59 PM in reply to: J.Matos

    There is an example about using subregions, in Wikihelp at this link:

     

    http://wikihelp.autodesk.com/Revit/enu/2013/Help/00001-Revit_He0/0135-Prelimin135/0170-Site_Des170/0...

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    Active Member
    Posts: 9
    Registered: ‎01-21-2013

    Re: Intersection problem between building pad and toposurface

    01-27-2013 07:35 PM in reply to: Alfredo_Medina

    I appreciate all the sugestions you gave, and I've tried them all. But, alas, none of them are working...

    Thanks for all the support, though!

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    Contributor
    Posts: 22
    Registered: ‎06-06-2012

    Re: Intersection problem between building pad and toposurface

    01-28-2013 01:50 AM in reply to: J.Matos

    This is a known problem, other people have blogged about this in the past.

     

    The solution instead of the slope arrow having a negative value, it must be at least 0.  So change the offset for the pad to the negative value, and have the slope go upwards from there.

     

    Hopefully the attached images will explain clearer than my text.

     

     

    Kevin Fielding
    BIM Coordinator
    AEW Architects
    Manchester, UK

    If my post solves your issue, please accept this as a solution and give me a thumbs up!
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    Active Member
    Posts: 9
    Registered: ‎01-21-2013

    Re: Intersection problem between building pad and toposurface

    01-28-2013 08:22 AM in reply to: kfielding

    Thanks for your solution! It was simple, and solved my problem :smileyhappy:

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