French curve

French curve

A French curve is a made out of plastic, metal or wood composed of many different curves. It is used in manual drafting to get a smooth curve of varying radii.

The curve is placed on the drawing material, and a pencil, knife or other implement is traced around its curves to produce the desired result.

The image on the right shows the three most common French curves; this set is also known as the Burmester set. The one on the far left side is most commonly used for hyperbolas; the smaller one on the far right side is suited for ellipses. The large one below is used most for parabolas. [ [http://www.daube.ch/docu/glossary/drawingtools.html#french_curves Drawing tools ] ]

Modern computer-aided drafting (CAD) systems use vector-based graphics to achieve a precise radius, so no template is required.

References

External links

* Weisstein, Eric W. " [http://mathworld.wolfram.com/FrenchCurve.html French Curve] " from MathWorld.
* " [http://tpub.com/content/engineering/14069/css/14069_92.htm Use of the French Curve] " from Integrated Publishing.


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Look at other dictionaries:

  • French curve — French′ (or french′) curve′ n. sur a flat drafting instrument, the edges of which are cut into several scroll like curves enabling lines of varying curvature to be drawn • Etymology: 1880–85 …   From formal English to slang

  • French curve — n. a template for drawing curved lines …   English World dictionary

  • french curve — noun Usage: often capitalized F : a curved piece of flat material (as wood, ebonite, celluloid) often in the form of a scroll and used as an aid in drawing noncircular curves * * * a flat drafting instrument, usually consisting of a sheet of… …   Useful english dictionary

  • French curve — a flat drafting instrument, usually consisting of a sheet of clear plastic, the edges of which are cut into several scroll like curves enabling a draftsperson to draw lines of varying curvature. Also, french curve. [1880 85] * * * …   Universalium

  • French curve —    Any of several flat drafting tools, shape template with curved edges and voluted cutouts, used to draw curves, especially in mechanical drawing. see thumbnail to rightEight popular designs, each between 6 and 12 inches long. French curves… …   Glossary of Art Terms

  • French curve — /frɛntʃ ˈkɜv/ (say french kerv) noun a flat celluloid or wooden drawing instrument consisting of a number of different curves, used to guide the pen or pencil in drawing curves of varying radii …  

  • french curve — noun Usage: often capitalized F Date: 1885 a curved piece of flat often plastic material used as a guide in drawing curves …   New Collegiate Dictionary

  • French curve — noun A drafting template having edges of various curvatures, used for drawing smoothly curved lines …   Wiktionary

  • curve — [kʉrv] adj. [L curvus, bent: see CROWN] Archaic curved n. 1. a line having no straight part; bend having no angular part 2. a thing or part having the shape of a curve 3. the act of curving, or the extent of this 4. [pl.] the pronounced curving… …   English World dictionary

  • French — bull (small breed of dog); French chalk (tailor’s talc); French curve (drafting instrument); French heel (high curved heel); French polish (alcohol + shellac); French pox (syphilis); French roll (women’s coiffure); French roof (mansard style);… …   Eponyms, nicknames, and geographical games

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