vantage vs viewport

vantage

noun
  • A place or position affording a good view; a vantage point. 

  • A superior or more favorable situation or opportunity; gain; profit; advantage. 

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 vantage and viewport occurred in a corpus of books? (source: Google Ngram Viewer )