Rotation in slope

[nitinjambhale]

Hello friends,

I m struggling to rotate a family in slope.

Please help.

Thanks.

-Nitin.

[Anonymous]

Dear Friend,

I am manish i am facing same problem in rotation of families.

while i am using

ElementTransformUtils.RotateElementDocument,Family Id, axis, Rotation Angle);

I am not Getting that

1. How to calculate Axis.

2. Rotation angle.

[Joe.Ye · Accepted solution]

Hi Nitin,

Here is a sample showing how to rotate an element.  

public void RotateColumn(Autodesk.Revit.DB.Document document, Autodesk.Revit.DB.Element element)
{
    XYZ point1 = new XYZ(10, 20, 0);
    XYZ point2 = new XYZ(10, 20, 30);
    // The axis should be a bound line.
    Line axis = document.Application.Create.NewLineBound(point1, point2);
    ElementTransformUtils.RotateElement(document, element.Id, axis, Math.PI / 3.0);
}

What's problem when rotate the sloped family? Please give more detailed information about what kind of element?   It is better to upload a very simple model to explain how to you want to rotate it. 

BTW, if you just want to rotate a sloped column, you can change the column's "Cross-Section Rotation"  parameter value to rotate the column.

[nitinjambhale · Accepted solution]

HI joe

Thanks for the reply. Its working now. There was some misunderstanding.

Thanks.

-Nitin