point of view vs viewport

point of view

noun
  • A position from which something is seen; outlook; standpoint. 

  • An attitude, opinion, or set of beliefs. 

  • The perspective from which a narrative is related. 

viewport

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

  • A viewing window. 

verb
  • To clip (an image or region) so that it fits in a viewport. 

How often have the words point of view and viewport occurred in a corpus of books? (source: Google Ngram Viewer )