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Thread: Delaunay Mesh / Triangulated Facade / ???

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    Delaunay Mesh / Triangulated Facade / ???


    I am not sure exactly what to call this, but I have been unable to come across someone doing anything remotely similar in Revit (this particular building is the Compass Stadium in Houston). Everything I have tried so far has not come out to how I'd like it to. I tried creating a conceptual mass where I drew all the triangular forms myself with lines and then in my file I moved each individual point to a place where it looked okay. That method however created gaps in my model where this form connected to the building.

    Is there any way to create a form like this without having to create each triangular piece by hand and control the location of each individual vertices? If I have to create each piece individually, then it doesn't leave much room for me to edit it quickly. (I would love to try a Dynamo script but I don't have much experience with it and there isn't really anything to work off of)
    Attached Thumbnails Attached Thumbnails Delaunay Mesh / Triangulated Facade / ???-compass-stadium.jpg  

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    Member Andrew P's Avatar
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    Unfortunately, Revit wasn’t made for these kinds of shapes, because it doesn’t fit in Autodesk’s “we make tools for 90% of buildings in the USA” narrative. The method you described by placings points and moving them in position and then connecting 3d lines to these points is the only OOTB method IMO to create these shapes from scratch. However, It could be very time-consuming depending on the complexity of the façade and therefore not the best solution. In Dynamo, you would do the same by placing point by coordinates and connecting them but with the added computational parametric benefits.

    Can you explain what gaps you get when you create the shapes in the mass family editor?

    Delaunay Mesh / Triangulated Facade / ???-face.jpg

    These designs typically are done in software like Rhino/grasshopper, SketchUP, Maya and then transferred to Autocad or Revit. So there are better option, however, if you want to do it in a bim platform, take a look at Archicad have similar tools to 3ds max and Rhino

    https://www.youtube.com/watch?v=3kTN...96509B1C879ACD
    https://www.youtube.com/watch?v=wIDG...96509B1C879ACD
    Andres Franco likes this.

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    Forum Co-Founder Twiceroadsfool's Avatar
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    Actually, its 100% possible (and not that difficult at all) in Revit, despite what Andrew says.

    The gaps you are seeing in the Massing editor are (more than likely) because you are using Points, and Lines, to make your faces.

    Use Reference Points, and Reference Lines.

    The Reference Points and Lines dont get "consumed" when the Form is made, so pulling on the points then pulls on the lines which pulls on the Face. This took about 2 minutes to make. Its not the shape of the building you are talking about, because i had no reference material, and just made it on the fly. But its SUPER easy to do this.

    Draw Ref Points. Draw Ref Lines. Create Form from Ref Lines, for the faces you want. Start tweaking.
    Attached Thumbnails Attached Thumbnails Delaunay Mesh / Triangulated Facade / ???-masstriangulated.jpg  

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    Forum Co-Founder Twiceroadsfool's Avatar
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    Hmph, that was animated GIF. I thought the forum got fixed so those worked? Here it is adjusting without leaving gaps:

    https://parallaxteam.sharefile.com/d-s8b51c2aac874519b

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    Member Andrew P's Avatar
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    Quote Originally Posted by Twiceroadsfool View Post
    Actually, its 100% possible (and not that difficult at all) in Revit, despite what Andrew says.
    Recreating an existing shape is always easier and most of the time possible in Revit than the actuall process of composing that shape from sratch. I assume he was asking about the tools that are needed in a design process where you would start off with the overal shape and then subdividing it, rather than recreating it.

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    Forum Co-Founder Twiceroadsfool's Avatar
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    Quote Originally Posted by Andrew P View Post
    Recreating an existing shape is always easier and most of the time possible in Revit than the actuall process of composing that shape from sratch. I assume he was asking about the tools that are needed in a design process where you would start off with the overal shape and then subdividing it, rather than recreating it.
    I wasn't recreating an existing shape. I was whipping it up on the fly. And it's fast. And easy.

    I get it. You don't like using Revit for form finding. Cool.

    But if the OP wants to try it, I've explained how. Because it isn't hard, or slow, to do what they are asking about. But I don't expect you to agree that it's fast or easy (even though I just did it), obviously.

    Sent from my Pixel 3 XL using Tapatalk

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    The gaps that I was referencing came about when I placed the form I created in the mass family editor into my overall model and tried to get it to fit over what it is meant to go over. Basically, I want this triangular form to sort of envelope a corner of my model.


    I guess I had already created the form in the only way you can create it in Revit, but my problem was where the form went up the corner to cover the top of it and then back down around it. It was basically a separate entity from the building and didn't really attach to it. I can place the points as close as possible to get it to look like it's actually a part of the building, but it was kind of a hassle, so I was wondering if there a script I could write/use to get it to always be attached to the building edges, but if that's not possible then that's okay.


    Since you mentioned it, if I were to model something in Rhino with grasshopper, what would be the easiest way to transfer it to Revit? I've tried Rhynamo before and it was unable to read my file so I basically gave up on the possibility of getting grasshopper files to read in Revit/Dynamo.

    Thanks!
    Attached Thumbnails Attached Thumbnails Delaunay Mesh / Triangulated Facade / ???-form-gaps.png   Delaunay Mesh / Triangulated Facade / ???-form-gaps2.png  

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    So you're saying that there isn't a way to automate this in Dynamo by selecting points/edges of an existing form and randomize points within that boundary to create the triangulation? If this is the only way to make the form, that's okay, but my main concern is that I thought I could make it easier somewhat in Dynamo but have been unable to find anything similar done online, despite the multitudes of buildings I've found that contain a similar form.

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    Forum Co-Founder Twiceroadsfool's Avatar
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    Of course you can. There are a ton of things you can do with Dynamo, and selecting wall faces/edges, to establish boundaries. Then there are things you can do to "randomize" (i hate random, ugh).

    The original post was "how do you make shapes like this and have the faces stay connected when you edit the points," so thats what i did. Someone better at Dynamo than i, can weigh in on the specifics of how to do it. I dont do "random" so i dont have any graphs that simulate that.

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    Forum Addict GMcDowellJr's Avatar
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    Quote Originally Posted by Twiceroadsfool View Post
    I dont do "random"
    truth be told, most people don't do random either... they do the appearance of random (which is not the same thing)

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