Create new material and add new Physical and Thermal assets with values.

[Anonymous]

Hi, this is my first post here.

I am trying to create new material and then add (like with the + button) new Thermal and Physical assets with filled data.

1. I create the matherial

transaction.Start("CreateMaterial");
// Create new material
var newMaterial = Material.Create(doc, "JustCreated");
                               
// Add attach to class
transaction.Commit();

2. Create Thermal Asset

var thermal = new ThermalAsset("Thermal1", ThermalMaterialType.Solid)
                {
                    TransmitsLight = false,
                    Permeability = 200.00,
                    Porosity = 300.00,
                    Reflectivity = 100.00,
                    ElectricalResistivity = 11.00
                };

                PropertySetElement.Create(doc, thermal);

2.1. Wondering how I can get the list of predefined assets just to Duplicate one for the material.

3. Cannot create a Physical Asset the same way

4. Cannot assign this Asset to the Material

Can someone share some experience, thank you?

[jeremytammik]

No experience, I'm sorry to say.

However, please note that the API access to materials was very limited in the past and was finally completely opened up in Revit 2018.1:

http://thebuildingcoder.typepad.com/blog/2017/08/revit-20181-and-the-visual-materials-api.html

If you can base your add-in on that version, everything should be easy, and you can use the new SDK sample to see how it is done.

Cheers,

Jeremy

[MarryTookMyCoffe · Accepted solution]

try to look on this posts:
https://forums.autodesk.com/t5/revit-api-forum/how-can-i-set-a-density-to-a-material-using-c-code/m-...
I was showing how create material add asset and detect if there is one.

[jeremytammik]

Many thanks to MarryTookMyCoffe for both this answer and the previous one referred to.

Can you please confirm that this approach solves your issue?

Once I have it confirmed, I would like to edit both as a post in The Building Coder.

It would be great if you could include a snippet of your own code showing exactly how you make use of this.

Thank you!

Cheers,

Jeremy

[Anonymous]

First of all thank you all for your help, and sorry for my late answer (was on a vacation). The solution provided works great for me. This is how my example code looks like:

using (var transaction = new Transaction(doc))
            {
                transaction.Start("CreateMaterial");

                // Create new material
                var newMaterial = Material.Create(doc, "JustCreated1");
                var material = doc.GetElement(newMaterial) as Material;

                var thAsset = new ThermalAsset("Thermal1", ThermalMaterialType.Solid);
                thAsset.Name = "yourname";
                thAsset.Behavior = StructuralBehavior.Isotropic;
                thAsset.ThermalConductivity = 0.00;
                thAsset.SpecificHeatOfVaporization = 0.0;
                thAsset.Porosity = 0.0;
                thAsset.Density = 0.0;
                thAsset.Emissivity = 0.0;
                thAsset.Reflectivity = 0.0;
                thAsset.Permeability = 0.0;
                thAsset.ElectricalResistivity = 0.0;
                thAsset.Compressibility = 0.0;

                var pse = PropertySetElement.Create(doc, thAsset);

                material.SetMaterialAspectByPropertySet(MaterialAspect.Thermal, pse.Id);

                var strAsset = new StructuralAsset("Thermal1", StructuralAssetClass.Generic);
                
                strAsset.Name = "yourname";
                strAsset.Behavior = StructuralBehavior.Isotropic;
                strAsset.YoungModulus = new XYZ(0, 0, 0);
                strAsset.Density = 0.0;

                var pses = PropertySetElement.Create(doc, strAsset);

                material.SetMaterialAspectByPropertySet(MaterialAspect.Structural, pses.Id);

                // Add attach to class
                transaction.Commit();
            }

[Anonymous]

is it possible to add a new material in an already existing Revit Material Library?

[jeremytammik]

https://thebuildingcoder.typepad.com/blog/about-the-author.html#5.5

[Anonymous]

Hi @jeremytammik! I've read your post, the answer seems to be negative, it's not possible to add new material in an already existing Revit Material Library. If I'm still right, the post was written in 2013, in the last two versions of API I heard some improvements from that side. Could you help me please?

[Anonymous]

@jeremytammik do you have some news about what @Anonymous wrote in his last post?