Painting the Face of an Element

The Paint tool functionality is available through the Revit API. Faces of elements such as walls, floors, and roofs can be painted with a material to change their appearance. It does not change the structure of the element.

The methods related to painting elements are part of the Document class. Document.Paint() applies a material to a specified face of an element. Document.RemovePaint() will remove the applied material. Additionally, the IsPainted() and GetPaintedMaterial() methods return information about the face of an element.

Code Region: Paint faces of a wall

// Paint any unpainted faces of a given wall
public void PaintWallFaces(Wall wall, ElementId matId)
{
    Document doc = wall.Document;
    GeometryElement geometryElement = wall.get_Geometry(new Options());
    foreach (GeometryObject geometryObject in geometryElement)
    {
        if (geometryObject is Solid)
        {
            Solid solid = geometryObject as Solid;
            foreach (Face face in solid.Faces)
            {
                if (doc.IsPainted(wall.Id, face) == false)
                {
                    doc.Paint(wall.Id, face, matId);
                }
            }
        }
    }
}