viewport meaning: definition, etymology and quotations

viewport

noun

/ˈvjuːpɔː(ɹ)t/

Etymology From view + port.

A viewing window.

acrylic plastic viewports in pressure vessels for human occupancy

Computer graphics, Computing, Engineering, Mathematics, Natural sciences, Physical sciences, Sciences 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

verb

Etymology From view + port.

Computer graphics, Computing, Engineering, Mathematics, Natural sciences, Physical sciences, Sciences To clip (an image or region) so that it fits in a viewport.

Some general ideas on clipping, viewporting, and windowing can be found in Rogers and Adams.1979, Tutorial: Computer Graphics, page 80:
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).1980, MTS, the Michigan Terminal System, volume 17, page 42:

1 more example

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