Descriptive geometry for students in engineering science and architecture; a carefully graded course of instruction . Y X Fig. opposite this new arrangement of the plan in each case is set up. that the truelength db2 and cd2 respectively, is shown on the , and the incUnation 0^, ofthe line, to the may now be seen; also, the line in each case must bearranged parallel to the by swinging its elevation parallel to XY, andso providing for a plan, a-ib and cod in the cases being considered, that willshow true length and contain an angle, a°, with XY, equal to the angle thehne makes
Descriptive geometry for students in engineering science and architecture; a carefully graded course of instruction . Y X Fig. opposite this new arrangement of the plan in each case is set up. that the truelength db2 and cd2 respectively, is shown on the , and the incUnation 0^, ofthe line, to the may now be seen; also, the line in each case must bearranged parallel to the by swinging its elevation parallel to XY, andso providing for a plan, a-ib and cod in the cases being considered, that willshow true length and contain an angle, a°, with XY, equal to the angle thehne makes with the V^P. —The secondary positions for the lines in Figs. 4 and 5 are shown bydouble lines to emphasize them. EXERCISE III I. Place the plan and elevation of the line AB, making the plan ab 2 long and the elevation3 long. Find the true length of this line, and also its inclinations to the planes of the angles as in Fig. 4 with arrow-headed arcs and use a. to indicate the angle with the ,and ii for the angle with the ^. The plan cd is 2 long. The line CD is 3 long. Draw an elevation for it
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisheretcetc, bookyear191
