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Thread: Subcategories

  1. #1
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    Subcategories

    Hi I'm pretty new to Revit. I just learnt how to create new subcategories and the line colours, line pattern and line weights will work but when I set the material in object styles I can't get it to assign the material I choose to a specific part of the family but everything else works. Does anyone know why this might be? I'm working in the family editor by the way.

    Thanks for your help,

    Ben

  2. #2
    Forum Addict elton williams's Avatar
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    Select the geometry you want to assign to subcategory, in properties under identity data/subcategory, select your choice.

    remember, when loading a family into project, if the subcategory already exists in the project then the project settings apply regardless of family settings. Only when loading new subcategories for the first time will it create new subcategory styles.

  3. #3
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    Sorry I hope I am understanding you correctly Elton but does this mean that the material will only show up once I have set the options for the subcategory and then loaded it into a project??? (gathered, unless the subcategory already exists by default in the project)




    Quote Originally Posted by elton williams View Post
    Select the geometry you want to assign to subcategory, in properties under identity data/subcategory, select your choice.

    remember, when loading a family into project, if the subcategory already exists in the project then the project settings apply regardless of family settings. Only when loading new subcategories for the first time will it create new subcategory styles.

  4. #4
    Forum Addict elton williams's Avatar
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    You can create new model subcategories through object styles within the family environment. Select the geometry and assign as previously indicated.
    These will load as new model subcategories into the project if they don't already exist.
    Dont get this confused with materials applied using a material parameter.

    Maybe this will help
    https://knowledge.autodesk.com/searc...E194B-htm.html

    http://blogs.rand.com/support/2012/0...-a-family.html
    Last edited by elton williams; August 31st, 2016 at 10:49 AM.

  5. #5
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    Hi Elton,

    I'm not sure if you are quite understanding my question correctly but as I indicated I have already done that part hence why the line weight and line colours show up when I switch between the created subcategories in the family editor. I haven't created a material parameter for it as I assumed that would be as a category and not a subcategory. In object styles it gives you a materials option which I guess is supposed to allow you to set the material for the family (or part of) a family. If I want to set the material as marble for instance in object styles for a new subcategory I create, I can set the part to contain the subcategory but the material will not show up in any visual style set. Do I need to set the visibility settings to something? thanks for your help and the links.

  6. #6
    Senior Member chris.macko's Avatar
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    You can define a material by the subcategory as a default, but a lot of things can override that. It's much easier to assign material parameters to each specific object you want to be a different material for rendering, visual appearances, or even takeoffs. Otherwise you could end up creating a lot of additional subcategories you don't really need, and as Elton said, and object styles set in the project will override what you set in the family if a subcategory of the same name already exists.

  7. #7
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    Thanks for the reply Chris. I can set material parameters fine and I will resort to that if I have to, I just want to know how to be able to get it to show as a subcategory. I am not loading anything into a project since I am only working with the family editor for what I do as I am designing small objects for an engineering company. It will look like I will have to only use the family editor for the finished articles anyway because we are intending to create them as BIM objects in the future and need to be of a smaller file size.

  8. #8
    Senior Member chris.macko's Avatar
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    Subcategories-family-subcategory.png
    Are you joining any of the geometry from different elements? Joined geometry will take on the object style and material of the first object you select. I just did a quick test and the materials assigned by subcategory show up fine in the family editor environment. Is this the way the engineering firm you're working with requested the families to be built? If I got a manufacturer family with that many subcategories in it, I'd personally go in and purge most of them out before using it because I don't like them cluttering up my project object styles. If you are relying on them for material information some of that might get lost down the road.

  9. #9
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    I haven't joined any of the geometry using the join tool if that's what you mean. I haven't nested anything, I have just created a closed profile for one part and a closed profile for another. I may have grouped the two parts of the family together but I hadn't set a material for the first part that I created. To be honest I am also training while working here and I have enough tools and knowledge to get the job done but at the same time I would like to know how to be able to use subcategories even if using them sparingly in the future. They won't show up for me personally. I was practising it with a basic wardrobe I made as I am using that to test certain tools with. I didn't want to be dependent on subcategories for material information but more really of just a use at my disposal if ever needed.

  10. #10
    Forum Addict elton williams's Avatar
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    Quote Originally Posted by Axeman89 View Post
    I haven't joined any of the geometry using the join tool if that's what you mean. I haven't nested anything, I have just created a closed profile for one part and a closed profile for another. I may have grouped the two parts of the family together but I hadn't set a material for the first part that I created. To be honest I am also training while working here and I have enough tools and knowledge to get the job done but at the same time I would like to know how to be able to use subcategories even if using them sparingly in the future. They won't show up for me personally. I was practising it with a basic wardrobe I made as I am using that to test certain tools with. I didn't want to be dependent on subcategories for material information but more really of just a use at my disposal if ever needed.
    As Chris pointed out, use subcategories as intended. A long list of subcategories for unique families isnt really best practice and i too would want to get rid of them. (Its hard enough dealing with all the autocrud users keep importing -another story i know). I only really use project level object styles to set default styles for system families being used up to (coarse) SD stage. Otherwise its materials, visibility graphics, filters and view templates.

    Why are you using groups in families? What do you mean exactly by 'closed profile for one part and closed profile for another'? You might want to upload your family.

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