Elements of Descriptive Geometry, with their application to spherical trigonometry, spherical projections, and warped surfaces. [With folding plates.] |
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Common terms and phrases
auxiliary planes centre coincides cone whose vertex cutting plane describes the arc determined dicular directrix draw a plane drawn parallel drawn perpendicular drawn tangent ecliptic ellipse generatrix given line given point ground line hence hori horizontal circle horizontal plane horizontal projection horizontal trace hyperbolas hyperbolic paraboloid hyperboloid intersects the surface jection Let the plane line drawn line pierces meridian plane oblique plane pendicular perpen pierces the horizontal pierces the plane pierces the vertical plane be drawn plane be revolved plane intersects plane of projection plane parallel plane passing plane perpendicular plane tangent plane which projects plane-directer point a,a point C,C point F point of contact polar distance pole primitive plane PROBLEM projecting plane pyramid radius required plane revolved position right line sphere surface of revolution tangent plane tical tion transverse axis tropic of Cancer vertical plane vertical projection vertical trace warped surface zontal plane zontal projection