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  2. Moiré pattern - Wikipedia

    en.wikipedia.org/wiki/Moiré_pattern

    Consider two patterns made of parallel and equidistant lines, e.g., vertical lines. The step of the first pattern is p , the step of the second is p + δp , with 0 < δp < p . If the lines of the patterns are superimposed at the left of the figure, the shift between the lines increases when going to the right.

  3. Geometric terms of location - Wikipedia

    en.wikipedia.org/wiki/Geometric_terms_of_location

    Vertical – spanning the height of a body. Longitudinal – spanning the length of a body. Lateral – spanning the width of a body. The distinction between width and length may be unclear out of context. Adjacent – next to; Lineal – following along a given path. The shape of the path is not necessarily straight (compare to linear).

  4. Warp and weft - Wikipedia

    en.wikipedia.org/wiki/Warp_and_weft

    The vertical warp yarns are held stationary in tension on a loom (frame) while the horizontal weft (also called the woof) is drawn through (inserted over and under) the warp thread. [1] In the terminology of weaving, each warp thread is called a warp end (synonymous terms are fill yarn and filling yarn ); a pick is a single weft thread that ...

  5. T-square - Wikipedia

    en.wikipedia.org/wiki/T-square

    A T-square is a technical drawing instrument used by draftsmen primarily as a guide for drawing horizontal lines on a drafting table. The instrument is named after its resemblance to the letter T, with a long shaft called the "blade" and a short shaft called the "stock" or "head". T-squares are available in a range of sizes, with common lengths ...

  6. Rule of thirds - Wikipedia

    en.wikipedia.org/wiki/Rule_of_thirds

    The tree is at the intersection of two lines, sometimes called a power point[ 1] or a crash point. [ 2] The rule of thirds is a "rule of thumb" for composing visual images such as designs, films, paintings, and photographs. [ 3] The guideline proposes that an image should be imagined as divided into nine equal parts by two equally spaced ...

  7. Elements of art - Wikipedia

    en.wikipedia.org/wiki/Elements_of_art

    There are different types of lines artists may use, including, actual, implied, vertical, horizontal, diagonal and contour lines, which all have different functions. [3] Lines are also situational elements, requiring the viewer to have knowledge of the physical world in order to understand their flexibility, rigidity, synthetic nature, or life. [1]

  8. Vertical–horizontal illusion - Wikipedia

    en.wikipedia.org/wiki/Verticalhorizontal_illusion

    The verticalhorizontal illusion is the tendency for observers to overestimate the length of a vertical line relative to a horizontal line of the same length. [1] This involves a bisecting component that causes the bisecting line to appear longer than the line that is bisected. People often overestimate or underestimate the length of the ...

  9. Typographic alignment - Wikipedia

    en.wikipedia.org/wiki/Typographic_alignment

    Typographic alignment. In typesetting and page layout, alignment or range is the setting of text flow or image placement relative to a page, column (measure), table cell, or tab (and often to an image above it or under it). The type alignment setting is sometimes referred to as text alignment, text justification, or type justification.