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How does a vector drawing differ from a raster image?

  • A.it records colour information but no dimensions
  • B.it stores geometry as entities rather than as pixels
  • C.it stores geometry as pixels rather than as entities
  • D.it can only be displayed and never plotted

Answer: B

A line held as two endpoints can be moved, trimmed and scaled without loss, whereas a grid of pixels degrades on every such operation. It is why CAD drawings are vector and scanned drawings must be vectorised before they can be edited properly.

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