FamilyInstance.ByGeometry Material

Cesare_Caoduro3 · January 7, 2021, 4:42am

Not quite sure how the material attribution works for this.
I have tried both to have the material available in the template and in the main family where I run the script and, in both cases, the material is not applied to the solid.
At the same time if in the template a Subcategory is already available the node produces an error.
@solamour or someone else in the forum can please explain a little bit better how this node is supposed to work?

john_pierson · January 7, 2021, 4:54am

The code is here so I bet you can investigate

github.com

DynamoDS/DynamoRevit/blob/98e19ab3ad3a70872b2019603182b5cca4419b79/src/Libraries/RevitNodes/GeometryConversion/ProtoToRevitSolid.cs#L120


/// Revit FreeForms via SAT Export/Import
/// </summary>
/// <param name="solidGeometry"></param>
/// <param name="name"></param>
/// <param name="category"></param>
/// <param name="templatePath">Revit Template to use for Family Creation</param>
/// <param name="material">Can be null for Voids</param>
/// <param name="isVoid">Create Void</param>
/// <param name="subcategory">Can be string.Empty for Voids</param>
/// <returns></returns>
public static Autodesk.Revit.DB.FamilySymbol ToRevitFamilyType(
    this Autodesk.DesignScript.Geometry.Solid solidGeometry, 
    string name,
    Revit.Elements.Category category, 
    string templatePath,
    Revit.Elements.Material material, 
    bool isVoid, 
    string subcategory = "")
{
    // Keep the current document and close the open transaction
    Autodesk.Revit.DB.Document document = DocumentManager.Instance.CurrentDBDocument;

Cesare_Caoduro3 · January 7, 2021, 5:20am

Exactly…on the paper it should apply a material if it is available in the new created document (based on the supplied template)
Doubt: the material parameter is of type ElementId and the method uses a SetParameterValue providing the name of the material only. I would probably find the ID of the material based on the name and then apply that as ElementId or apply the FirstOrDefault() if not found

For the SubCategory should check if the subcategory exists in the template before creating a new one otherwise there is no point in using a template.
Any thoughts? Do I need to go and build my own (we try to avoid third party packages in our scripts).

Cheers

john_pierson · January 7, 2021, 6:35am

Spring nodes has one too (python)

solamour · January 7, 2021, 3:46pm

@ziyun.shang are you able to provide any insight to Cesare here?

Cesare_Caoduro3 · January 11, 2021, 4:44am

Tested and doesn’t apply the material as well

Dimitar_Venkov · January 13, 2021, 12:22pm

Try again, both material and subcategory should work. You need to supply the material’s name as a string and make sure that a material with that name exists in the family template:

The builtin node wasn’t a one-to-one translation and that’s why this node is still around.

Topic		Replies	Views
Convert a solid geometry in dynamo to an element in Revit Revit	3	1266	August 4, 2022
2 questions about FamilyType.ByGeometry Revit revit , dynamo	17	4807	February 27, 2019
Familytype.ByGeometry Problema	8	383	August 4, 2022
FamilyInstance.ByGeometry	8	2928	November 29, 2018
Spring Nodes - Springs Family Instance By Geometry - setting materials and subcategory Packages dynamo , springs	5	3570	September 12, 2017

FamilyInstance.ByGeometry Material

Related Topics