Orthographic Projection

The projection affects how the three-dimensional scene is drawn in the Viewer window.

Choose the View | Projection | Orthographic command or click the button to enable orthographic projection. The orthographic projection produces a parallel projection with no distortion for distance. As a result, it is sometimes difficult to determine how far an object is from you when viewing it in orthographic projection. This view is useful, however, when you need to measure distances or angles, or exactly align objects in three-dimensional space.

The sample file Helens (ContourMap).voxb
with an Orthographic projection.