viewport

view +‎ port

• IPA^(key): /ˈvjuːpɔː(ɹ)t/

• Audio (UK)

  (file)

• Rhymes: -uːpɔː(ɹ)t
• Hyphenation: view‧port

viewport (plural viewports)

1. A viewing window.

   acrylic plastic viewports in pressure vessels for human occupancy

2. (computer graphics) A typically rectangular region representing the range or area currently visible (within a window, screen, etc.).

   Dragging the scroll-bar changes which part of the picture is visible within the viewport.

viewport (third-person singular simple present viewports, present participle viewporting, simple past and past participle viewported)

1. (transitive, computer graphics) To clip (an image or region) so that it fits in a viewport.
   • 1979, Tutorial: Computer Graphics, page 80:

     Some general ideas on clipping, viewporting, and windowing can be found in Rogers and Adams.

   • 1980, MTS, the Michigan Terminal System, volume 17, page 42:

     Viewporting is an operation that takes the portion of the picture that has been mapped into the square region delimited by -1,+1,-1,+1 and further maps it into a rectangular subregion of the screen (a viewport).

   • 2012, Scott Preston, Learn HTML5 and JavaScript for iOS:

     The main thing I want you to take away from this chapter is knowing where to start and creating a very simple viewported web site using nothing more than an extra <meta> tag and simple HTML.