Deltas

This is a discussion on Deltas within the Game Programming forums, part of the General Programming Boards category; Hi All, I am working my way threw a windows programming book and reach a point i need some info. ...

  1. #1
    Registered User
    Join Date
    Aug 2001
    Posts
    55

    Deltas

    Hi All,

    I am working my way threw a windows programming book and reach a point i need some info. I have come accross the word delta. What is the definition of that term. (Its not explained in the book, only used. This especially for the lineclipping algo).
    I am now at the trapping the mouse section. You can do so by absolute postion (fine, no problems) or by relative deltas?(heh )
    Can someone give me some info on what the latter means....(There is a graphic in the book, but i dont get it)

    Cheers,
    G'n'R

  2. #2
    Me -=SoKrA=-'s Avatar
    Join Date
    Oct 2002
    Location
    Europe
    Posts
    448
    http://catb.org/esr/jargon/html/D/delta.html
    That's the deffinition it gives in the Jargon File. Meaning 1 is what you're looking for.
    I basically means change. eg, from 100 to 160 there's a 60% delta. The symbol is (at least usually) a trinagle.
    SoKrA-BTS "Judge not the program I made, but the one I've yet to code"
    I say what I say, I mean what I mean.
    IDE: emacs + make + gcc and proud of it.

  3. #3
    Pursuing knowledge confuted's Avatar
    Join Date
    Jun 2002
    Posts
    1,916
    It's not a 60% delta. /\=60. It's just the change in something.... (v1-v2) where v means value.
    Away.

  4. #4
    Me -=SoKrA=-'s Avatar
    Join Date
    Oct 2002
    Location
    Europe
    Posts
    448
    Originally posted by confuted
    It's not a 60% delta. /\=60. It's just the change in something.... (v1-v2) where v means value.
    I wasn't sure if the % should be there. Thanks for clearing tha out.
    BTW, what you did to get the triangle was
    SoKrA-BTS "Judge not the program I made, but the one I've yet to code"
    I say what I say, I mean what I mean.
    IDE: emacs + make + gcc and proud of it.

  5. #5
    Registered User
    Join Date
    Aug 2001
    Posts
    55
    yep, thanks... Though it was something like that

Popular pages Recent additions subscribe to a feed

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21