Science and art drawing : complete geometrical course ; consisting of plane and solid geometry, orthographic and isometric projection, projection of shadow's the principles of map projection, graphic arithmetic and graphic statics (1895)
Spanton, J. Humphrey (John Humphrey) · London : Macmillan · leaf 205
his called the foU: Erom C, along AB, set off any number of points at pleasure,1, 2, 3, etc., and draw lines from P through these points. Pro-duce the perpendicular OF below C, and select the point D.CD is called the diameter. - Set off along the lines radiating from P distances equal toCD, as IH,… … these points, it would be called the superior conchoid. If wetake the diameter greater than the length CP, the curve wouldhave a loop. CYCLOIDAL CURVES, ETC. 185 Pkoblem 206.To draw a, cissoid.The cissoid was invented by Diodes in the second century.
Geometrical drawing
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