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- Contour_line abstract "A contour line (also isoline, isopleth, or isarithm) of a function of two variables is a curve along which the function has a constant value. In cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. A contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness of slopes. The contour interval of a contour map is the difference in elevation between successive contour lines.More generally, a contour line for a function of two variables is a curve connecting points where the function has the same particular value. The gradient of the function is always perpendicular to the contour lines. When the lines are close together the magnitude of the gradient is large: the variation is steep. A level set is a generalization of a contour line for functions of any number of variables.Contour lines are curved, straight or a mixture of both lines on a map describing the intersection of a real or hypothetical surface with one or more horizontal planes. The configuration of these contours allows map readers to infer relative gradient of a parameter and estimate that parameter at specific places. Contour lines may be either traced on a visible three-dimensional model of the surface, as when a photogrammetrist viewing a stereo-model plots elevation contours, or interpolated from estimated surface elevations, as when a computer program threads contours through a network of observation points of area centroids. In the latter case, the method of interpolation affects the reliability of individual isolines and their portrayal of slope, pits and peaks.".
- Contour_line thumbnail Courbe_niveau.svg?width=300.
- Contour_line wikiPageExternalLink contour.html.
- Contour_line wikiPageID "650086".
- Contour_line wikiPageRevisionID "604474341".
- Contour_line hasPhotoCollection Contour_line.
- Contour_line subject Category:Cartography.
- Contour_line subject Category:Curves.
- Contour_line subject Category:Multivariable_calculus.
- Contour_line subject Category:Topography.
- Contour_line comment "A contour line (also isoline, isopleth, or isarithm) of a function of two variables is a curve along which the function has a constant value. In cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. A contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness of slopes.".
- Contour_line label "Aklina".
- Contour_line label "Contour line".
- Contour_line label "Isoclina".
- Contour_line label "Isolinie".
- Contour_line label "Isolínea".
- Contour_line label "Isopleet".
- Contour_line label "Isoplèthe".
- Contour_line label "Изолиния".
- Contour_line label "خط الكنتور".
- Contour_line label "等値線".
- Contour_line label "等雨線".
- Contour_line sameAs Izolinie.
- Contour_line sameAs Isolinie.
- Contour_line sameAs Isolínea.
- Contour_line sameAs Isolinea.
- Contour_line sameAs Isoplèthe.
- Contour_line sameAs Isoclina.
- Contour_line sameAs 等値線.
- Contour_line sameAs 등치선.
- Contour_line sameAs Isopleet.
- Contour_line sameAs Aklina.
- Contour_line sameAs m.02_k38.
- Contour_line sameAs Q6653802.
- Contour_line sameAs Q6653802.
- Contour_line wasDerivedFrom Contour_line?oldid=604474341.
- Contour_line depiction Courbe_niveau.svg.
- Contour_line isPrimaryTopicOf Contour_line.
