An Elementary Treatise on Descriptive Geometry: With a Theory of Shadows and of Perspective: Extracted from the French of G. Monge. To which is Added, a Description of the Principles and Practice of Isometrical Projection. The Whole Being Intended as an Introduction to the Application of Descriptive Geometry to Various Branches of the ArtsJ. Weale, 1851 - 137 páginas |
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axis body which casts bright brilliant point casts the shadow circumference colour conceived cone conical surface consequently cube curve of double curved surfaces cutting plane cylindrical surface descriptive geometry developed surface diagonal direction distance double curvature draw a tangent drawing the straight edges ellipse equal faces given curve given plane given point given straight line hori horizontal and vertical horizontal plane horizontal projection horizontal trace indefinite straight line isometric axes isometric planes isometric projection let fall line parallel luminous body luminous point manner meets L M meets the vertical method pendicular perspective plane passing planes of projection point H point of intersection points of contact PROB produced projecting the point radius rays of light remitted required intersection respect right angles second surface solution sphere suppose surface of revolution tangent plane tion twisted surface vertex vertical plane vertical projection vertical trace visual ray