What is first angle orthographic projection?
First angle projection is a method of creating a 2D drawing of a 3D object. It is mainly used in Europe and Asia and has not been officially used in Australia for many years. The Australian Standard uses third angle projection rather first angle projection as it is easier to understand. Note the symbol for first angle orthographic projection. This is important information for the person interpreting the drawing because if you examine the diagram below you will note that in first angle orthographic projection: • the view from the front view is in the middle • the view from the left is on the right • the view from the right is on the left • the view from the top of is on the bottom • the view from the bottom is on the top • the view from the rear is on the far right.
