Abstract
The projections of a straight line in various positions in the first quadrant are grouped based on its orientation with reference to the vertical and horizontal planes. They are:
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1.
Parallel to both the planes
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2.
Perpendicular to one plane
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3.
Parallel to one plane and inclined to the other plane
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4.
Lying in one plane
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5.
Lying in the reference line xy (intersection of the VP and the HP)
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6.
Inclined to both the planes
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7.
Inclined to both the planes with an end in the reference line xy
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8.
Inclined to both the planes with ends in both the planes
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9.
Perpendicular to the reference line xy
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Rathnam, K. (2018). Projections of Lines. In: A First Course in Engineering Drawing. Springer, Singapore. https://doi.org/10.1007/978-981-10-5358-0_7
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DOI: https://doi.org/10.1007/978-981-10-5358-0_7
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