![]() ![]() The points where these projectors meet the square are the exact positions of the intersections of corners 2 and 4 with the pyramid. It isn't necessary to make a complete, shaded section on your drawing but it is necessary to draw the square on the plan Since points 2 and 4 lie on this square it is simple to find their exact position Project comers 2 and 4 from the E.E. the section of the pyramid resulting would be square, and points 2 and 4 would lie on this square. The pictorial view shows how these comers meet the pyramid If the pyramid was cut across X-X. These are projected across to the F.E.Ĭorners 2 and 4 are not quite so obvious. shows where corners 1 and 3 meet the pyramid. can then be completed.Ī squire prism msstlng a squsre pyramid at right anglaa (Fig. via the end of the hexagonal prism (follow the arrows). (and then across to the E.E.) is found by projecting down to the F.E. The change of shape occurs at points a and b. The sides of the hexagonal prism between corners 3-4 end 5-6 meet two sides of the octagonal prism. 4 and 5 meet the octagonal prism and these are projected down to the Ft shows where corners 3 end 6 meet the octagonal prism. The F.E shows where comers 3 and 6 meet the larger prism The plan shows where corners 1,2.4 and 5 meet the Larger prism and these are projected up to the F E.Ī hexagonal prism meeting an octagonal prism at en angle, their centre« not being in the aame vertical plana (Rg. Two dissimilar hexagonal prisms meeting at an angle (F»g. The plan shows where corners 2 and 4 meet the larger pdsm and this is projected down to the F.E.ģRD ANGLE PROJECTION A hexagonal prism masting s square prism at right shows where corners 1 end 3 meet the larger prism. Two dieeimilar square prisma meeting at an angle The plan shows where comers 2 and 4 meet the larger prism end this Is projected up to the F.E. shows where corners 1 and 3 meet the larger prism and these are projected across to the F.E. Two dissimilar equare prleme meeting at right angles (Fig. This chapter shows the lines of intersection formed when some of the simpler geometric solids interpenetrate H is sometimes necessary to know the exact shape of this line, usually so that an accurate development of either or both of the solids can be drawn. When two solids Interpenetrate, a line of intersection is formed. ![]()
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