Generating Circles and Circular Arcs in Graphics
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Questions and Answers

What is a common use of circles in graphics packages?

  • Generating complex geometric shapes
  • Calculating computational algorithms
  • Displaying circular or elliptical curves (correct)
  • Creating linear patterns

    • How is a circle defined mathematically?

  • As the set of points equidistant from a line
  • As the set of points equidistant from a center position (correct)
  • As the set of points equidistant from a vertex
  • As the set of points equidistant from an endpoint

    • What is a potential issue with using the mathematical definition of a circle to generate it?

  • It involves minimal computation at each step
  • It requires no adjustment for the slope of the circle
  • It involves considerable computation at each step (correct)
  • The spacing between plotted pixel positions is uniform

    • How can we adjust the spacing between plotted pixel positions when generating a circle?

    <p>By interchanging x and y whenever the absolute value of the slope of the circle is greater than 1</p> Signup and view all the answers

    What is the result of adjusting the spacing between plotted pixel positions when generating a circle?

    <p>It increases the computation and processing required by the algorithm</p> Signup and view all the answers

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