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  2. 180-degree rule - Wikipedia

    en.wikipedia.org/wiki/180-degree_rule

    The rule states that the camera should be kept on one side of an imaginary axis between two characters, so that the first character is always frame right of the second character. Moving the camera over the axis is called jumping the line or crossing the line; breaking the 180-degree rule by shooting on all sides is known as shooting in the round.

  3. Rotation matrix - Wikipedia

    en.wikipedia.org/wiki/Rotation_matrix

    A 180° rotation (middle) followed by a positive 90° rotation (left) is equivalent to a single negative 90° (positive 270°) rotation (right). Each of these figures depicts the result of a rotation relative to an upright starting position (bottom left) and includes the matrix representation of the permutation applied by the rotation (center ...

  4. Frontside and backside - Wikipedia

    en.wikipedia.org/wiki/Frontside_and_backside

    This can be many things, rail, pipe wall, or slope/implied slope. If the rider is spinning it will indicate which side of the rider is first to face in the direction of travel. The only exception to this rule is fakie as there is an implied 180 degree rotation already completed causing the expression to be reversed.

  5. Quaternions and spatial rotation - Wikipedia

    en.wikipedia.org/wiki/Quaternions_and_spatial...

    The circle defined by this slice will be very small, corresponding to the small angle of the rotation. As the rotation angles become larger, the slice moves in the negative z direction, and the circles become larger until the equator of the sphere is reached, which will correspond to a rotation angle of 180 degrees. Continuing southward, the ...

  6. Wikipedia : Featured picture candidates/180 degree rule

    en.wikipedia.org/.../180_degree_rule

    Original - The 180° rule is a basic guideline in film making that states that two characters (or other elements) in the same scene should always have the same left/right relationship to each other. If the camera passes over the imaginary axis connecting the two subjects, it is called crossing the line.

  7. Glossary of motion picture terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_motion_picture...

    A style of cinematography in which the 180-degree rule is broken and the actors are filmed from all sides. shooting schedule shooting script single-camera setup slow cutting A film editing technique which uses shots of long duration, i.e. with cuts occurring at long intervals. Most shots longer than about 15 seconds seem slow to modern-day ...

  8. State moves forward with 180-day rule for schools, despite ...

    www.aol.com/state-moves-forward-180-day...

    Mar. 7—The state Public Education Department announced Thursday it will enact a rule requiring 180 instructional days at schools, a plan that has drawn ire from teachers, administrators and ...

  9. Rotation of axes in two dimensions - Wikipedia

    en.wikipedia.org/wiki/Rotation_of_axes_in_two...

    In the new coordinate system, the point P will appear to have been rotated in the opposite direction, that is, clockwise through the angle . A rotation of axes in more than two dimensions is defined similarly. [2] [3] A rotation of axes is a linear map [4] [5] and a rigid transformation.