The essentials of descriptive geometry . PLANES 31 is to assume one view of the point — as the plan view a in — and through this assumed plan view of the point draw theplan mn of a line MN parallel to the H trace. Since this lineMN is parallel to the H trace its elevation will be parallel to the. Fig. 34. G. L.; mn and mn, then, are the plan and elevation of a lineMN lying in the plane T. Since a lies on mn, a will lie onmn, and the point A then, as represented by the plan a andelevation a, will be a point in the plane T. PROBLEMS ON PLANES Assume a plane parallel to the G. L. so t
The essentials of descriptive geometry . PLANES 31 is to assume one view of the point — as the plan view a in — and through this assumed plan view of the point draw theplan mn of a line MN parallel to the H trace. Since this lineMN is parallel to the H trace its elevation will be parallel to the. Fig. 34. G. L.; mn and mn, then, are the plan and elevation of a lineMN lying in the plane T. Since a lies on mn, a will lie onmn, and the point A then, as represented by the plan a andelevation a, will be a point in the plane T. PROBLEMS ON PLANES Assume a plane parallel to the G. L. so that its H trace is 2 backof V and its V trace 3 above H. Show an end view of this plane. 46. A plane is perpendicular to H and inchned 30 degrees to V. Showits three traces. 47. Draw a plane parallel to the plane in Problem 46. Draw the profiletraces 2 apart. 32 ESSENTIALS OF DESCRIPTIVE GEOMETRY 48. Draw the H, V, and P traces of a plane in the third quadrant. Letthe H trace incline 60 degrees to the G. L. and the V trace 45 degrees to theG. L. 49. Assume any line in the first quadrant oblique to H and V and showthe traces of a plane perpendicular to this line. 50. Assume any oblique plane in the third quadrant and show the tracesof a plane which wiU be perpendicular to this plane and to V. 51.
Size: 1369px × 1825px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookidcu3192400462, bookyear1915
