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  2. 3D projection - Wikipedia

    en.wikipedia.org/wiki/3D_projection

    its vanishing point, found at the intersection between the parallel line from the eye point and the picture plane. The principal vanishing point is the vanishing point of all horizontal lines perpendicular to the picture plane. The vanishing points of all horizontal lines lie on the horizon line. If, as is often the case, the picture plane is ...

  3. Matplotlib - Wikipedia

    en.wikipedia.org/wiki/Matplotlib

    Matplotlib-animation [11] capabilities are intended for visualizing how certain data changes. However, one can use the functionality in any way required. These animations are defined as a function of frame number (or time). In other words, one defines a function that takes a frame number as input and defines/updates the matplotlib-figure based ...

  4. Identity line - Wikipedia

    en.wikipedia.org/wiki/Identity_line

    In this case, the plotted points are quantiles, making it a Q–Q plot. The Keynesian cross diagram includes an identity line to show states in which aggregate demand equals output. In a 2-dimensional Cartesian coordinate system, with x representing the abscissa and y the ordinate, the identity line [1] [2] or line of equality [3] is the y = x ...

  5. Bresenham's line algorithm - Wikipedia

    en.wikipedia.org/wiki/Bresenham's_line_algorithm

    The value of the line function at this midpoint is the sole determinant of which point should be chosen. The adjacent image shows the blue point (2,2) chosen to be on the line with two candidate points in green (3,2) and (3,3). The black point (3, 2.5) is the midpoint between the two candidate points.

  6. Point in polygon - Wikipedia

    en.wikipedia.org/wiki/Point_in_polygon

    In computational geometry, the point-in-polygon (PIP) problem asks whether a given point in the plane lies inside, outside, or on the boundary of a polygon. It is a special case of point location problems and finds applications in areas that deal with processing geometrical data, such as computer graphics , computer vision , geographic ...

  7. Perspective (graphical) - Wikipedia

    en.wikipedia.org/wiki/Perspective_(graphical)

    All objects will recede to points in the distance, usually along the horizon line, but also above and below the horizon line depending on the view used. How linear or point-projection prospective works: Rays of light travel from the object (cube), through the picture plane, and to the viewer's eye (O). Vanishing points emitting straightly lines ...

  8. Epipolar geometry - Wikipedia

    en.wikipedia.org/wiki/Epipolar_geometry

    That line (e R –x R) in the right camera is called an epipolar line. Symmetrically, the line O R –X is seen by the right camera as a point and is seen as epipolar line e L –x L by the left camera. An epipolar line is a function of the position of point X in the 3D space, i.e. as X varies, a set

  9. Twisted cubic - Wikipedia

    en.wikipedia.org/wiki/Twisted_cubic

    That is, it is the closure by a single point at infinity of the affine curve (,,). The twisted cubic is a projective variety , defined as the intersection of three quadrics . In homogeneous coordinates [ X : Y : Z : W ] {\displaystyle [X:Y:Z:W]} on P 3 , the twisted cubic is the closed subscheme defined by the vanishing of the three homogeneous ...