The projection law of three views is: the length of the front view is aligned with the length of the top view; The front view is flush with the left view; The top view is the same width as the left view.

Can the concept of three views correctly reflect the length, width and height of an object? Orthogonal drawings (front view, top view and left view? The basic view is three views, which is an abstract expression of the geometric shape of objects in the engineering field.

reference data

Yang Chunyan Lan Ruming. Mechanical drawing. Xi 'an: xidian university Publishing House, 20 13.