oblique projection

References

Images

Figure 4: Three objects with identical top and front views. (Top row) Pictorial drawings. (Bottom row) Top, front, and side views, showing how the side views resolve the ambiguity.

Figure 5: Use of dashed lines to represent edges hidden in views of a complicated object.

Figure 2: Orthographic projections of a three-dimensional object onto vertical and horizontal planes. (A) Object located in the first of four quadrants defined by intersecting planes. (B) Result of rotating the horizontal plane into coincidence with the vertical plane. (C) The same object located in the third quadrant. (D) Result of rotating the horizontal plane as in (B), showing exchanged positions of top and front views.

Figure 3: Selection of points to be projected in preparing orthographic views (see text).

oblique projection

drawing

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drafting
Pictorial views
…the pictorial representation achieved by oblique projection, in which the principal surface of the object is considered to be in the plane of the paper and thus is represented in true size and shape. The angle the receding axis makes with the horizontal lines of the drawing is chosen arbitrarily…
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…the pictorial representation achieved by oblique projection, in which the principal surface of the object is considered to be in the plane of the paper and thus is represented in true size and shape. The angle the receding axis makes with the horizontal lines of the drawing is chosen arbitrarily…
Read More