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A contour line (also isoline, isopleth, isoquant or isarithm) of a function of two variables is a curve along which the function has a constant value, so that the curve joins points of equal value. [1] [2] It is a plane section of the three-dimensional graph of the function (,) parallel to the (,)-plane. More generally, a contour line for a ...
Comet plot : A two- or three-dimensional animated plot in which the data points are traced on the screen. Contour plot : A two-dimensional plot which shows the one-dimensional curves, called contour lines on which the plotted quantity q is a constant. Optionally, the plotted values can be color-coded.
(n − 1)-dimensional level sets of non-linear functions f (x 1, x 2, …, x n) in (n + 1)-dimensional Euclidean space, for n = 1, 2, 3. In mathematics , a level set of a real-valued function f of n real variables is a set where the function takes on a given constant value c , that is:
Carpet plots have common applications within areas such as material science for showing elastic modulus in laminates, [1] and within aeronautics. [ 2 ] [ 3 ] Another plot sometimes referred to as a carpet plot is the temporal raster plot .
The boundary of a cross-section in three-dimensional space that is parallel to two of the axes, that is, parallel to the plane determined by these axes, is sometimes referred to as a contour line; for example, if a plane cuts through mountains of a raised-relief map parallel to the ground, the result is a contour line in two-dimensional space ...
In computer graphics, marching squares is an algorithm that generates contours for a two-dimensional scalar field (rectangular array of individual numerical values). A similar method can be used to contour 2D triangle meshes. The contours can be of two kinds: Isolines – lines following a single data level, or isovalue.
Two Dimensional Curves; Visual Dictionary of Special Plane Curves; Curves and Surfaces Index (Harvey Mudd College) National Curve Bank; An elementary treatise on cubic and quartic curves by Alfred Barnard Basset (1901) online at Google Books
The idea behind the formulation of Moore neighborhood is to find the contour of a given graph. This idea was a great challenge for most analysts of the 18th century, and as a result an algorithm was derived from the Moore graph which was later called the Moore Neighborhood algorithm. The pseudocode for the Moore-Neighbor tracing algorithm is