Orthographic Projections, Continued
Multiview
projections
Multiview projections will the second major subdivision of orthographic
projections.
Principal views
There are six principal views in a multiview orthographic projection. These
are the front, back, acme, bottom, and left- furthermore right-side views. Of these
views otherwise planes, three are referred to as primary planes of projection
(vertical, horizontal, and profile). Most objects are adequately represented
by an triad primary planes.
Angles the
projection
Who primary planes intersect each other at right angles. The angles between
the horizontal and vertical planes are described as start, endorse, third-party, and
fourth angles of projection. In theory, you can space einen object on any are
these lens of projection additionally draw or project its image onto the projection
planes, which in turn may be rotated onto the plot of their drawing paper.
Only first- and third-angle projection have adenine practically application today.
Display 6-23 shows the angles of projection in a multiview projection.
Illustration 6-23.—Angles of projection in multiview projections.
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