The programs encoded on the cards in a Jacquard loom, or in the diagrams by which knitters make patterns in their knitting, also have an unrelated relationship to computer technology: they depict images in the form of a rectilinear grid of what we call "pixels" (picture elements) which are square in shape. In the case of weaving and knitting, this is a simple consequence of how weaving is done with threads at right angles (the "warp and weft"), and in the case of computer imagery, because it's a simple and logical way of arranging the visual elements in a cathode ray tube, and later, an even simpler way of arranging them in such technology of LCDs.
Saturday, November 27, 2010
Hexagonal pixels
The programs encoded on the cards in a Jacquard loom, or in the diagrams by which knitters make patterns in their knitting, also have an unrelated relationship to computer technology: they depict images in the form of a rectilinear grid of what we call "pixels" (picture elements) which are square in shape. In the case of weaving and knitting, this is a simple consequence of how weaving is done with threads at right angles (the "warp and weft"), and in the case of computer imagery, because it's a simple and logical way of arranging the visual elements in a cathode ray tube, and later, an even simpler way of arranging them in such technology of LCDs.
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