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ENGN103 ENGINEERING DRAWING ISOMETRIC PROJECTIONS LECTURE 4 WHAT IS ISOMETRIC DRAWING? It is a method of producing pictorial view of an object showing all three faces of the object simultaneously. It is a type of parallel projection. It is a type of axonometric projection. ISOMETRIC PROJECTIONS Observer is placed at infinity. Projectors parallel to each other and perpendicular to projection plane. Object is inclined with respect to projection plane in order to see all the three faces. ISOMETRIC TERMINOLOGY 1. The three coordinate axes are called isometric axes. 2. Any line parallel to isometric axes is called isometric line. 3. A non-isometric line is a line not parallel to any of the three isometric axis. 4. In isometric projection of cube, the faces of the cube and any plane parallel to them is called isometric planes.
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