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Engineering Chap 4

vanishing point looking at an object the object's parallel lines appear to converge at a imaginary point on the horizon
perspective drawing the lines of an object that move away from the viewer converge on an imaginary point called the vanishing point
isometric drawing all vertical lines are drawn vertically, but all horizontal lines are drawn at30 degrees to the horizontal; measurements communicated
scale ratio of an object in a drawing to the true size
scale factor ratio of size of drawing and the size of the object
x= sl x is length of line;s is scale factor; l is real length of object
oblique drawing front side of the object appears flat in plane and sides and top are at a 45 degree angle to the horizontal lines of the front side
metric system standard unit one meter
orthographic drawings 2 D or flat drawings of each side of an object; tell dimensions of design
Created by: msjmm