5
Projections of Points and Lines
OBJECTIVES
After studying this chapter, you will be able to
Understand how drawings of points and straight lines are prepared in the form of views that are known as orthographic projections
Describe the principal planes of projections on which different views are obtained
Describe all the possible positions of points and lines with respect to the principal planes
Describe the principal directions from where the points and lines are viewed and the relative positions in which these views are arranged
5.1 INTRODUCTION
So far, we have discussed the basics of engineering drawing and the different types of symbolic lines and letters as well as scales that are used to prepare drawings. Now, we turn to the importance ...
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