A textbook on mechanical and electrical engineering (1902)
International Correspondence Schools · Scranton : International Textbook Co. · leaf 26
be drawn. Whenever the givenpoints are far apart, or fall in such positions that the irreg-ular curve cannot always be made to pass through three ofthem, the line must invariably be sketched in at first. As an example, let it be required to draw a curved linethrough the points a, b, c, d, etc..… … Fig. 17 16 GEOMETRICAL DRAWING tf, b, c, and </. The line may then be drawn from a around tod, or, better, to a point between c and d, since, by not con-tinuing it quite to d, there is less liability of there being anangle where the next section joins on. For the next sectionof the line, the…
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-569-339.webp)
