Ellipse.normal_at
- Ellipse.normal_at(t, world=True)[source]
- Compute the normal at a specific parameter. - Parameters:
- tfloat
- The parameter value. 
- worldbool, optional
- If - True, the normal is returned in world coordinates.
 
- Returns:
- compas.geometry.Vector
- The normal vector at the parameter. 
 
 - See also - Notes - The orientation of the vector is expressed with respect to the world coordinate system.