Toolbar button:
Perspective Toggle in a 2D Plan View When you click the , in a plan view, the view switches to a 3D perspective view.
Perspective Toggle in a 3D View When you click the , in a three dimensional window, the view switches from a perspective view to an isometric view. In other words, the aperture angle is toggled to 0 degrees.
As the name indicates, the
button is a toggle switch. Thus you can use it once in a 3D view to switch to an isometric view of structure. If you later click the button again in this same view, SAFE will switch back to the original perspective view.